mirror of
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Add FreeRTOS-Plus directory.
This commit is contained in:
Richard Barry
parent
7bd5f21ad5
commit
f508a5f653
6798 changed files with 134949 additions and 19 deletions
112
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo1/FreeRTOSConfig.h
Normal file
112
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo1/FreeRTOSConfig.h
Normal file
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@ -0,0 +1,112 @@
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/*
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FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
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***************************************************************************
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* *
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* FreeRTOS tutorial books are available in pdf and paperback. *
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* Complete, revised, and edited pdf reference manuals are also *
|
||||
* available. *
|
||||
* *
|
||||
* Purchasing FreeRTOS documentation will not only help you, by *
|
||||
* ensuring you get running as quickly as possible and with an *
|
||||
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
* the FreeRTOS project to continue with its mission of providing *
|
||||
* professional grade, cross platform, de facto standard solutions *
|
||||
* for microcontrollers - completely free of charge! *
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||||
* *
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* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
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* *
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* Thank you for using FreeRTOS, and thank you for your support! *
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* *
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***************************************************************************
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
>>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
distribute a combined work that includes FreeRTOS without being obliged to
|
||||
provide the source code for proprietary components outside of the FreeRTOS
|
||||
kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
more details. You should have received a copy of the GNU General Public
|
||||
License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
by writing to Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
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***************************************************************************
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* *
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* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong? *
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* *
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* http://www.FreeRTOS.org/FAQHelp.html *
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* *
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***************************************************************************
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http://www.FreeRTOS.org - Documentation, training, latest information,
|
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license and contact details.
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http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool.
|
||||
|
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Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
|
||||
the code with commercial support, indemnification, and middleware, under
|
||||
the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
|
||||
provide a safety engineered and independently SIL3 certified version under
|
||||
the SafeRTOS brand: http://www.SafeRTOS.com.
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*/
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#ifndef FREERTOS_CONFIG_H
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#define FREERTOS_CONFIG_H
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/*-----------------------------------------------------------
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* Application specific definitions.
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*
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* These definitions should be adjusted for your particular hardware and
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* application requirements.
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*
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* THESE PARAMETERS ARE DESCRIBED WITHIN THE 'CONFIGURATION' SECTION OF THE
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* FreeRTOS API DOCUMENTATION AVAILABLE ON THE FreeRTOS.org WEB SITE.
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*
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* See http://www.freertos.org/a00110.html.
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*----------------------------------------------------------*/
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#define configUSE_PREEMPTION 1
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#define configUSE_IDLE_HOOK 1
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#define configUSE_TICK_HOOK 0
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#define configCPU_CLOCK_HZ ( ( unsigned long ) 20000000 )
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#define configTICK_RATE_HZ ( ( portTickType ) 1000 )
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#define configMINIMAL_STACK_SIZE ( ( unsigned short ) 59 )
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#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 1468 ) )
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#define configMAX_TASK_NAME_LEN ( 3 )
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#define configUSE_TRACE_FACILITY 0
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#define configUSE_16_BIT_TICKS 0
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#define configIDLE_SHOULD_YIELD 0
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#define configUSE_CO_ROUTINES 1
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#define configMAX_PRIORITIES ( ( unsigned portBASE_TYPE ) 2 )
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#define configMAX_CO_ROUTINE_PRIORITIES ( 2 )
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/* Set the following definitions to 1 to include the API function, or zero
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to exclude the API function. */
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#define INCLUDE_vTaskPrioritySet 0
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#define INCLUDE_uxTaskPriorityGet 0
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#define INCLUDE_vTaskDelete 0
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#define INCLUDE_vTaskCleanUpResources 0
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#define INCLUDE_vTaskSuspend 0
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#define INCLUDE_vTaskDelayUntil 0
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#define INCLUDE_vTaskDelay 1
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#endif /* FREERTOS_CONFIG_H */
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630
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo1/main.c
Normal file
630
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo1/main.c
Normal file
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|
@ -0,0 +1,630 @@
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/*
|
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FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
|
||||
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
* Complete, revised, and edited pdf reference manuals are also *
|
||||
* available. *
|
||||
* *
|
||||
* Purchasing FreeRTOS documentation will not only help you, by *
|
||||
* ensuring you get running as quickly as possible and with an *
|
||||
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
* the FreeRTOS project to continue with its mission of providing *
|
||||
* professional grade, cross platform, de facto standard solutions *
|
||||
* for microcontrollers - completely free of charge! *
|
||||
* *
|
||||
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
* *
|
||||
* Thank you for using FreeRTOS, and thank you for your support! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
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This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
>>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
distribute a combined work that includes FreeRTOS without being obliged to
|
||||
provide the source code for proprietary components outside of the FreeRTOS
|
||||
kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
more details. You should have received a copy of the GNU General Public
|
||||
License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
by writing to Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong? *
|
||||
* *
|
||||
* http://www.FreeRTOS.org/FAQHelp.html *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, training, latest information,
|
||||
license and contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool.
|
||||
|
||||
Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
|
||||
the code with commercial support, indemnification, and middleware, under
|
||||
the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
|
||||
provide a safety engineered and independently SIL3 certified version under
|
||||
the SafeRTOS brand: http://www.SafeRTOS.com.
|
||||
*/
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/*
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* This demo application creates six co-routines and two tasks (three including
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* the idle task). The co-routines execute as part of the idle task hook.
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*
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* Five of the created co-routines are the standard 'co-routine flash'
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* co-routines contained within the Demo/Common/Minimal/crflash.c file and
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* documented on the FreeRTOS.org WEB site.
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*
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* The 'LCD Task' rotates a string on the LCD, delaying between each character
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* as necessitated by the slow interface, and delaying between each string just
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* long enough to enable the text to be read.
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*
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* The sixth co-routine and final task control the transmission and reception
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* of a string to UART 0. The co-routine periodically sends the first
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* character of the string to the UART, with the UART's TxEnd interrupt being
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* used to transmit the remaining characters. The UART's RxEnd interrupt
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* receives the characters and places them on a queue to be processed by the
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* 'COMs Rx' task. An error is latched should an unexpected character be
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* received, or any character be received out of sequence.
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*
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* A loopback connector is required to ensure that each character transmitted
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* on the UART is also received on the same UART. For test purposes the UART
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* FIFO's are not utalised in order to maximise the interrupt overhead. Also
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* a pseudo random interval is used between the start of each transmission in
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* order that the resultant interrupts are more randomly distributed and
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* therefore more likely to highlight any problems.
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*
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* The flash co-routines control LED's zero to four. LED five is toggled each
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* time the string is transmitted on the UART. LED six is toggled each time
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* the string is CORRECTLY received on the UART. LED seven is latched on should
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* an error be detected in any task or co-routine.
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*
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* In addition the idle task makes repetative calls to
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* prvSetAndCheckRegisters(). This simply loads the general purpose registers
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* with a known value, then checks each register to ensure the held value is
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* still correct. As a low priority task this checking routine is likely to
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* get repeatedly swapped in and out. A register being found to contain an
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* incorrect value is therefore indicative of an error in the task switching
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* mechansim.
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*
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*/
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/* Scheduler include files. */
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#include "FreeRTOS.h"
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#include "task.h"
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#include "queue.h"
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#include "croutine.h"
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/* Demo application include files. */
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#include "partest.h"
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#include "crflash.h"
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/* Library include files. */
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#include "LM3Sxxx.h"
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#include "pdc.h"
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/* The time to delay between writing each character to the LCD. */
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#define mainCHAR_WRITE_DELAY ( 2 / portTICK_RATE_MS )
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/* The time to delay between writing each string to the LCD. */
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#define mainSTRING_WRITE_DELAY ( 400 / portTICK_RATE_MS )
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/* The number of flash co-routines to create. */
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#define mainNUM_FLASH_CO_ROUTINES ( 5 )
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/* The length of the queue used to pass received characters to the Comms Rx
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task. */
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#define mainRX_QUEUE_LEN ( 5 )
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/* The priority of the co-routine used to initiate the transmission of the
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string on UART 0. */
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#define mainTX_CO_ROUTINE_PRIORITY ( 1 )
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/* Only one co-routine is created so its index is not important. */
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#define mainTX_CO_ROUTINE_INDEX ( 0 )
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/* The time between transmissions of the string on UART 0. This is pseudo
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random in order to generate a bit or randomness to when the interrupts occur.*/
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#define mainMIN_TX_DELAY ( 40 / portTICK_RATE_MS )
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#define mainMAX_TX_DELAY ( ( portTickType ) 0x7f )
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#define mainOFFSET_TIME ( ( portTickType ) 3 )
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/* The time the Comms Rx task should wait to receive a character. This should
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be slightly longer than the time between transmissions. If we do not receive
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a character after this time then there must be an error in the transmission or
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the timing of the transmission. */
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#define mainCOMMS_RX_DELAY ( mainMAX_TX_DELAY + 20 )
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/* The task priorites. */
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#define mainLCD_TASK_PRIORITY ( tskIDLE_PRIORITY )
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#define mainCOMMS_RX_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
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/* The LED's toggled by the various tasks. */
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#define mainCOMMS_FAIL_LED ( 7 )
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#define mainCOMMS_RX_LED ( 6 )
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#define mainCOMMS_TX_LED ( 5 )
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/* The baud rate used by the UART comms tasks/co-routine. */
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#define mainBAUD_RATE ( 57600 )
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/* FIFO setting for the UART. The FIFO is not used to create a better test. */
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#define mainFIFO_SET ( 0x10 )
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/* The string that is transmitted on the UART contains sequentially the
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characters from mainFIRST_TX_CHAR to mainLAST_TX_CHAR. */
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#define mainFIRST_TX_CHAR '0'
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#define mainLAST_TX_CHAR 'z'
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/* Just used to walk through the program memory in order that some random data
|
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can be generated. */
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#define mainTOTAL_PROGRAM_MEMORY ( ( unsigned long * ) ( 8 * 1024 ) )
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#define mainFIRST_PROGRAM_BYTES ( ( unsigned long * ) 4 )
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/*-----------------------------------------------------------*/
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/*
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* The task that rotates text on the LCD.
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*/
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static void vLCDTask( void * pvParameters );
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/*
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* The task that receives the characters from UART 0.
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*/
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static void vCommsRxTask( void * pvParameters );
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/*
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* The co-routine that periodically initiates the transmission of the string on
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* the UART.
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*/
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static void vSerialTxCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex );
|
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/*
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* Writes a string the the LCD.
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*/
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static void prvWriteString( const char *pcString );
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|
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/*
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* Initialisation routine for the UART.
|
||||
*/
|
||||
static void vSerialInit( void );
|
||||
|
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/*
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* Thread safe write to the PDC.
|
||||
*/
|
||||
static void prvPDCWrite( char cAddress, char cData );
|
||||
|
||||
/*
|
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* Function to simply set a known value into the general purpose registers
|
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* then read them back to ensure they remain set correctly. An incorrect value
|
||||
* being indicative of an error in the task switching mechanism.
|
||||
*/
|
||||
void prvSetAndCheckRegisters( void );
|
||||
|
||||
/*
|
||||
* Latch the LED that indicates that an error has occurred.
|
||||
*/
|
||||
void vSetErrorLED( void );
|
||||
|
||||
/*
|
||||
* Sets up the PLL and ports used by the demo.
|
||||
*/
|
||||
static void prvSetupHardware( void );
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Error flag set to pdFAIL if an error is encountered in the tasks/co-routines
|
||||
defined within this file. */
|
||||
unsigned portBASE_TYPE uxErrorStatus = pdPASS;
|
||||
|
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/* The next character to transmit. */
|
||||
static char cNextChar;
|
||||
|
||||
/* The queue used to transmit characters from the interrupt to the Comms Rx
|
||||
task. */
|
||||
static xQueueHandle xCommsQueue;
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
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int main( void )
|
||||
{
|
||||
/* Create the queue used to communicate between the UART ISR and the Comms
|
||||
Rx task. */
|
||||
xCommsQueue = xQueueCreate( mainRX_QUEUE_LEN, sizeof( char ) );
|
||||
|
||||
/* Setup the ports used by the demo and the clock. */
|
||||
prvSetupHardware();
|
||||
|
||||
/* Create the co-routines that flash the LED's. */
|
||||
vStartFlashCoRoutines( mainNUM_FLASH_CO_ROUTINES );
|
||||
|
||||
/* Create the co-routine that initiates the transmission of characters
|
||||
on the UART. */
|
||||
xCoRoutineCreate( vSerialTxCoRoutine, mainTX_CO_ROUTINE_PRIORITY, mainTX_CO_ROUTINE_INDEX );
|
||||
|
||||
/* Create the LCD and Comms Rx tasks. */
|
||||
xTaskCreate( vLCDTask, "LCD", configMINIMAL_STACK_SIZE, NULL, mainLCD_TASK_PRIORITY, NULL );
|
||||
xTaskCreate( vCommsRxTask, "CMS", configMINIMAL_STACK_SIZE, NULL, mainCOMMS_RX_TASK_PRIORITY, NULL );
|
||||
|
||||
/* Start the scheduler running the tasks and co-routines just created. */
|
||||
vTaskStartScheduler();
|
||||
|
||||
/* Should not get here unless we did not have enough memory to start the
|
||||
scheduler. */
|
||||
for( ;; );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvSetupHardware( void )
|
||||
{
|
||||
/* Setup the PLL. */
|
||||
SysCtlClockSet( SYSCTL_SYSDIV_10 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_6MHZ );
|
||||
|
||||
/* Initialise the hardware used to talk to the LCD, LED's and UART. */
|
||||
PDCInit();
|
||||
vParTestInitialise();
|
||||
vSerialInit();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vApplicationIdleHook( void )
|
||||
{
|
||||
/* The co-routines are executed in the idle task using the idle task
|
||||
hook. */
|
||||
for( ;; )
|
||||
{
|
||||
/* Schedule the co-routines. */
|
||||
vCoRoutineSchedule();
|
||||
|
||||
/* Run the register check function between each co-routine. */
|
||||
prvSetAndCheckRegisters();
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvWriteString( const char *pcString )
|
||||
{
|
||||
/* Write pcString to the LED, pausing between each character. */
|
||||
prvPDCWrite(PDC_LCD_CSR, LCD_CLEAR);
|
||||
while( *pcString )
|
||||
{
|
||||
vTaskDelay( mainCHAR_WRITE_DELAY );
|
||||
prvPDCWrite( PDC_LCD_RAM, *pcString );
|
||||
pcString++;
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vLCDTask( void * pvParameters )
|
||||
{
|
||||
unsigned portBASE_TYPE uxIndex;
|
||||
const unsigned char ucCFGData[] = {
|
||||
0x30, /* Set data bus to 8-bits. */
|
||||
0x30,
|
||||
0x30,
|
||||
0x3C, /* Number of lines/font. */
|
||||
0x08, /* Display off. */
|
||||
0x01, /* Display clear. */
|
||||
0x06, /* Entry mode [cursor dir][shift]. */
|
||||
0x0C /* Display on [display on][curson on][blinking on]. */
|
||||
};
|
||||
|
||||
/* The strings that are written to the LCD. */
|
||||
const char *pcStringsToDisplay[] = {
|
||||
"Stellaris",
|
||||
"Demo",
|
||||
"One",
|
||||
"www.FreeRTOS.org",
|
||||
""
|
||||
};
|
||||
|
||||
/* Configure the LCD. */
|
||||
uxIndex = 0;
|
||||
while( uxIndex < sizeof( ucCFGData ) )
|
||||
{
|
||||
prvPDCWrite( PDC_LCD_CSR, ucCFGData[ uxIndex ] );
|
||||
uxIndex++;
|
||||
vTaskDelay( mainCHAR_WRITE_DELAY );
|
||||
}
|
||||
|
||||
/* Turn the LCD Backlight on. */
|
||||
prvPDCWrite( PDC_CSR, 0x01 );
|
||||
|
||||
/* Clear display. */
|
||||
vTaskDelay( mainCHAR_WRITE_DELAY );
|
||||
prvPDCWrite( PDC_LCD_CSR, LCD_CLEAR );
|
||||
|
||||
uxIndex = 0;
|
||||
for( ;; )
|
||||
{
|
||||
/* Display the string on the LCD. */
|
||||
prvWriteString( pcStringsToDisplay[ uxIndex ] );
|
||||
|
||||
/* Move on to the next string - wrapping if necessary. */
|
||||
uxIndex++;
|
||||
if( *( pcStringsToDisplay[ uxIndex ] ) == 0x00 )
|
||||
{
|
||||
uxIndex = 0;
|
||||
/* Longer pause on the last string to be sent. */
|
||||
vTaskDelay( mainSTRING_WRITE_DELAY * 2 );
|
||||
}
|
||||
|
||||
/* Wait until it is time to move onto the next string. */
|
||||
vTaskDelay( mainSTRING_WRITE_DELAY );
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vCommsRxTask( void * pvParameters )
|
||||
{
|
||||
static char cRxedChar, cExpectedChar;
|
||||
|
||||
/* Set the char we expect to receive to the start of the string. */
|
||||
cExpectedChar = mainFIRST_TX_CHAR;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
/* Wait for a character to be received. */
|
||||
xQueueReceive( xCommsQueue, ( void * ) &cRxedChar, mainCOMMS_RX_DELAY );
|
||||
|
||||
/* Was the character recived (if any) the expected character. */
|
||||
if( cRxedChar != cExpectedChar )
|
||||
{
|
||||
/* Got an unexpected character. This can sometimes occur when
|
||||
reseting the system using the debugger leaving characters already
|
||||
in the UART regsters. */
|
||||
uxErrorStatus = pdFAIL;
|
||||
|
||||
/* Resync by waiting for the end of the current string. */
|
||||
while( cRxedChar != mainLAST_TX_CHAR )
|
||||
{
|
||||
while( !xQueueReceive( xCommsQueue, ( void * ) &cRxedChar, portMAX_DELAY ) );
|
||||
}
|
||||
|
||||
/* The next expected character is the start of the string again. */
|
||||
cExpectedChar = mainFIRST_TX_CHAR;
|
||||
}
|
||||
else
|
||||
{
|
||||
if( cExpectedChar == mainLAST_TX_CHAR )
|
||||
{
|
||||
/* We have reached the end of the string - we now expect to
|
||||
receive the first character in the string again. The LED is
|
||||
toggled to indicate that the entire string was received without
|
||||
error. */
|
||||
vParTestToggleLED( mainCOMMS_RX_LED );
|
||||
cExpectedChar = mainFIRST_TX_CHAR;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* We got the expected character, we now expect to receive the
|
||||
next character in the string. */
|
||||
cExpectedChar++;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vSerialTxCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex )
|
||||
{
|
||||
portTickType xDelayPeriod;
|
||||
static unsigned long *pulRandomBytes = mainFIRST_PROGRAM_BYTES;
|
||||
|
||||
/* Co-routine MUST start with a call to crSTART. */
|
||||
crSTART( xHandle );
|
||||
|
||||
for(;;)
|
||||
{
|
||||
/* Was the previously transmitted string received correctly? */
|
||||
if( uxErrorStatus != pdPASS )
|
||||
{
|
||||
/* An error was encountered so set the error LED. */
|
||||
vSetErrorLED();
|
||||
}
|
||||
|
||||
/* The next character to Tx is the first in the string. */
|
||||
cNextChar = mainFIRST_TX_CHAR;
|
||||
|
||||
UARTIntDisable( UART0_BASE, UART_INT_TX );
|
||||
{
|
||||
/* Send the first character. */
|
||||
if( !( HWREG( UART0_BASE + UART_O_FR ) & UART_FR_TXFF ) )
|
||||
{
|
||||
HWREG( UART0_BASE + UART_O_DR ) = cNextChar;
|
||||
}
|
||||
|
||||
/* Move the variable to the char to Tx on so the ISR transmits
|
||||
the next character in the string once this one has completed. */
|
||||
cNextChar++;
|
||||
}
|
||||
UARTIntEnable(UART0_BASE, UART_INT_TX);
|
||||
|
||||
/* Toggle the LED to show a new string is being transmitted. */
|
||||
vParTestToggleLED( mainCOMMS_TX_LED );
|
||||
|
||||
/* Delay before we start the string off again. A pseudo-random delay
|
||||
is used as this will provide a better test. */
|
||||
xDelayPeriod = xTaskGetTickCount() + ( *pulRandomBytes );
|
||||
|
||||
pulRandomBytes++;
|
||||
if( pulRandomBytes > mainTOTAL_PROGRAM_MEMORY )
|
||||
{
|
||||
pulRandomBytes = mainFIRST_PROGRAM_BYTES;
|
||||
}
|
||||
|
||||
/* Make sure we don't wait too long... */
|
||||
xDelayPeriod &= mainMAX_TX_DELAY;
|
||||
|
||||
/* ...but we do want to wait. */
|
||||
if( xDelayPeriod < mainMIN_TX_DELAY )
|
||||
{
|
||||
xDelayPeriod = mainMIN_TX_DELAY;
|
||||
}
|
||||
|
||||
/* Block for the random(ish) time. */
|
||||
crDELAY( xHandle, xDelayPeriod );
|
||||
}
|
||||
|
||||
/* Co-routine MUST end with a call to crEND. */
|
||||
crEND();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vSerialInit( void )
|
||||
{
|
||||
/* Enable the UART. GPIOA has already been initialised. */
|
||||
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
|
||||
|
||||
/* Set GPIO A0 and A1 as peripheral function. They are used to output the
|
||||
UART signals. */
|
||||
GPIODirModeSet( GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1, GPIO_DIR_MODE_HW );
|
||||
|
||||
/* Configure the UART for 8-N-1 operation. */
|
||||
UARTConfigSet( UART0_BASE, mainBAUD_RATE, UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_ONE );
|
||||
|
||||
/* We dont want to use the fifo. This is for test purposes to generate
|
||||
as many interrupts as possible. */
|
||||
HWREG( UART0_BASE + UART_O_LCR_H ) &= ~mainFIFO_SET;
|
||||
|
||||
/* Enable both Rx and Tx interrupts. */
|
||||
HWREG( UART0_BASE + UART_O_IM ) |= ( UART_INT_TX | UART_INT_RX );
|
||||
IntEnable( INT_UART0 );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vUART_ISR(void)
|
||||
{
|
||||
unsigned long ulStatus;
|
||||
char cRxedChar;
|
||||
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
|
||||
|
||||
/* What caused the interrupt. */
|
||||
ulStatus = UARTIntStatus( UART0_BASE, pdTRUE );
|
||||
|
||||
/* Clear the interrupt. */
|
||||
UARTIntClear( UART0_BASE, ulStatus );
|
||||
|
||||
/* Was an Rx interrpt pending? */
|
||||
if( ulStatus & UART_INT_RX )
|
||||
{
|
||||
if( ( HWREG(UART0_BASE + UART_O_FR ) & UART_FR_RXFF ) )
|
||||
{
|
||||
/* Get the char from the buffer and post it onto the queue of
|
||||
Rxed chars. Posting the character should wake the task that is
|
||||
blocked on the queue waiting for characters. */
|
||||
cRxedChar = ( char ) HWREG( UART0_BASE + UART_O_DR );
|
||||
xQueueSendFromISR( xCommsQueue, &cRxedChar, &xHigherPriorityTaskWoken );
|
||||
}
|
||||
}
|
||||
|
||||
/* Was a Tx interrupt pending? */
|
||||
if( ulStatus & UART_INT_TX )
|
||||
{
|
||||
/* Send the next character in the string. We are not using the FIFO. */
|
||||
if( cNextChar <= mainLAST_TX_CHAR )
|
||||
{
|
||||
if( !( HWREG( UART0_BASE + UART_O_FR ) & UART_FR_TXFF ) )
|
||||
{
|
||||
HWREG( UART0_BASE + UART_O_DR ) = cNextChar;
|
||||
}
|
||||
cNextChar++;
|
||||
}
|
||||
}
|
||||
|
||||
/* If a task was woken by the character being received then we force
|
||||
a context switch to occur in case the task is of higher priority than
|
||||
the currently executing task (i.e. the task that this interrupt
|
||||
interrupted.) */
|
||||
portEND_SWITCHING_ISR( xHigherPriorityTaskWoken );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvPDCWrite( char cAddress, char cData )
|
||||
{
|
||||
vTaskSuspendAll();
|
||||
{
|
||||
PDCWrite( cAddress, cData );
|
||||
}
|
||||
xTaskResumeAll();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vSetErrorLED( void )
|
||||
{
|
||||
vParTestSetLED( mainCOMMS_FAIL_LED, pdTRUE );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
__asm void prvSetAndCheckRegisters( void )
|
||||
{
|
||||
extern vSetErrorLED
|
||||
|
||||
/* Fill the general purpose registers with known values. */
|
||||
mov r11, #10
|
||||
add r0, r11, #1
|
||||
add r1, r11, #2
|
||||
add r2, r11, #3
|
||||
add r3, r11, #4
|
||||
add r4, r11, #5
|
||||
add r5, r11, #6
|
||||
add r6, r11, #7
|
||||
add r7, r11, #8
|
||||
add r8, r11, #9
|
||||
add r9, r11, #10
|
||||
add r10, r11, #11
|
||||
add r12, r11, #12
|
||||
|
||||
/* Check the values are as expected. */
|
||||
cmp r11, #10
|
||||
bne set_error_led
|
||||
cmp r0, #11
|
||||
bne set_error_led
|
||||
cmp r1, #12
|
||||
bne set_error_led
|
||||
cmp r2, #13
|
||||
bne set_error_led
|
||||
cmp r3, #14
|
||||
bne set_error_led
|
||||
cmp r4, #15
|
||||
bne set_error_led
|
||||
cmp r5, #16
|
||||
bne set_error_led
|
||||
cmp r6, #17
|
||||
bne set_error_led
|
||||
cmp r7, #18
|
||||
bne set_error_led
|
||||
cmp r8, #19
|
||||
bne set_error_led
|
||||
cmp r9, #20
|
||||
bne set_error_led
|
||||
cmp r10, #21
|
||||
bne set_error_led
|
||||
cmp r12, #22
|
||||
bne set_error_led
|
||||
bx lr
|
||||
|
||||
set_error_led;
|
||||
push {r14}
|
||||
ldr r1, =vSetErrorLED
|
||||
blx r1
|
||||
pop {r14}
|
||||
bx lr;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
3
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo1/readme.txt
Normal file
3
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo1/readme.txt
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
Move these two fines into the Demo/CORTEX_LM3S102_KEIL directory to run Demo 1.
|
||||
|
||||
See the port documentation on the www.FreeRTOS.org site for more information.
|
||||
112
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo2/FreeRTOSConfig.h
Normal file
112
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo2/FreeRTOSConfig.h
Normal file
|
|
@ -0,0 +1,112 @@
|
|||
/*
|
||||
FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
|
||||
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
* Complete, revised, and edited pdf reference manuals are also *
|
||||
* available. *
|
||||
* *
|
||||
* Purchasing FreeRTOS documentation will not only help you, by *
|
||||
* ensuring you get running as quickly as possible and with an *
|
||||
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
* the FreeRTOS project to continue with its mission of providing *
|
||||
* professional grade, cross platform, de facto standard solutions *
|
||||
* for microcontrollers - completely free of charge! *
|
||||
* *
|
||||
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
* *
|
||||
* Thank you for using FreeRTOS, and thank you for your support! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
>>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
distribute a combined work that includes FreeRTOS without being obliged to
|
||||
provide the source code for proprietary components outside of the FreeRTOS
|
||||
kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
more details. You should have received a copy of the GNU General Public
|
||||
License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
by writing to Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong? *
|
||||
* *
|
||||
* http://www.FreeRTOS.org/FAQHelp.html *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, training, latest information,
|
||||
license and contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool.
|
||||
|
||||
Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
|
||||
the code with commercial support, indemnification, and middleware, under
|
||||
the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
|
||||
provide a safety engineered and independently SIL3 certified version under
|
||||
the SafeRTOS brand: http://www.SafeRTOS.com.
|
||||
*/
|
||||
|
||||
#ifndef FREERTOS_CONFIG_H
|
||||
#define FREERTOS_CONFIG_H
|
||||
|
||||
/*-----------------------------------------------------------
|
||||
* Application specific definitions.
|
||||
*
|
||||
* These definitions should be adjusted for your particular hardware and
|
||||
* application requirements.
|
||||
*
|
||||
* THESE PARAMETERS ARE DESCRIBED WITHIN THE 'CONFIGURATION' SECTION OF THE
|
||||
* FreeRTOS API DOCUMENTATION AVAILABLE ON THE FreeRTOS.org WEB SITE.
|
||||
*
|
||||
* See http://www.freertos.org/a00110.html.
|
||||
*----------------------------------------------------------*/
|
||||
|
||||
#define configUSE_PREEMPTION 1
|
||||
#define configUSE_IDLE_HOOK 1
|
||||
#define configUSE_TICK_HOOK 0
|
||||
#define configCPU_CLOCK_HZ ( ( unsigned long ) 20000000 )
|
||||
#define configTICK_RATE_HZ ( ( portTickType ) 1000 )
|
||||
#define configMINIMAL_STACK_SIZE ( ( unsigned short ) 59 )
|
||||
#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 1240 ) )
|
||||
#define configMAX_TASK_NAME_LEN ( 3 )
|
||||
#define configUSE_TRACE_FACILITY 0
|
||||
#define configUSE_16_BIT_TICKS 0
|
||||
#define configIDLE_SHOULD_YIELD 0
|
||||
#define configUSE_CO_ROUTINES 1
|
||||
|
||||
#define configMAX_PRIORITIES ( ( unsigned portBASE_TYPE ) 2 )
|
||||
#define configMAX_CO_ROUTINE_PRIORITIES ( 3 )
|
||||
|
||||
/* Set the following definitions to 1 to include the API function, or zero
|
||||
to exclude the API function. */
|
||||
|
||||
#define INCLUDE_vTaskPrioritySet 0
|
||||
#define INCLUDE_uxTaskPriorityGet 0
|
||||
#define INCLUDE_vTaskDelete 0
|
||||
#define INCLUDE_vTaskCleanUpResources 0
|
||||
#define INCLUDE_vTaskSuspend 0
|
||||
#define INCLUDE_vTaskDelayUntil 0
|
||||
#define INCLUDE_vTaskDelay 1
|
||||
|
||||
|
||||
|
||||
|
||||
#endif /* FREERTOS_CONFIG_H */
|
||||
638
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo2/main.c
Normal file
638
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo2/main.c
Normal file
|
|
@ -0,0 +1,638 @@
|
|||
/*
|
||||
FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
|
||||
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
* Complete, revised, and edited pdf reference manuals are also *
|
||||
* available. *
|
||||
* *
|
||||
* Purchasing FreeRTOS documentation will not only help you, by *
|
||||
* ensuring you get running as quickly as possible and with an *
|
||||
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
* the FreeRTOS project to continue with its mission of providing *
|
||||
* professional grade, cross platform, de facto standard solutions *
|
||||
* for microcontrollers - completely free of charge! *
|
||||
* *
|
||||
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
* *
|
||||
* Thank you for using FreeRTOS, and thank you for your support! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
>>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
distribute a combined work that includes FreeRTOS without being obliged to
|
||||
provide the source code for proprietary components outside of the FreeRTOS
|
||||
kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
more details. You should have received a copy of the GNU General Public
|
||||
License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
by writing to Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong? *
|
||||
* *
|
||||
* http://www.FreeRTOS.org/FAQHelp.html *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, training, latest information,
|
||||
license and contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool.
|
||||
|
||||
Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
|
||||
the code with commercial support, indemnification, and middleware, under
|
||||
the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
|
||||
provide a safety engineered and independently SIL3 certified version under
|
||||
the SafeRTOS brand: http://www.SafeRTOS.com.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This demo application creates seven co-routines and one task (two including
|
||||
* the idle task). The co-routines execute as part of the idle task hook.
|
||||
*
|
||||
* Five of the created co-routines are the standard 'co-routine flash'
|
||||
* co-routines contained within the Demo/Common/Minimal/crflash.c file and
|
||||
* documented on the FreeRTOS.org WEB site.
|
||||
*
|
||||
* The 'LCD Task' rotates a string on the LCD, delaying between each character
|
||||
* as necessitated by the slow interface, and delaying between each string just
|
||||
* long enough to enable the text to be read.
|
||||
*
|
||||
* The sixth co-routine controls the transmission of a string to UART 0. The
|
||||
* co-routine periodically sends the first character of the string to the UART,
|
||||
* with the UART's TxEnd interrupt being used to transmit the remaining
|
||||
* characters. The UART's RxEnd interrupt receives the characters and places
|
||||
* them on a queue to be processed by the seventh and final co-routine. An
|
||||
* error is latched should an unexpected character be received, or any
|
||||
* character be received out of sequence.
|
||||
*
|
||||
* A loopback connector is required to ensure that each character transmitted
|
||||
* on the UART is also received on the same UART. For test purposes the UART
|
||||
* FIFO's are not utalised in order to maximise the interrupt overhead. Also
|
||||
* a pseudo random interval is used between the start of each transmission in
|
||||
* order that the resultant interrupts are more randomly distributed and
|
||||
* therefore more likely to highlight any problems.
|
||||
*
|
||||
* The flash co-routines control LED's zero to four. LED five is toggled each
|
||||
* time the string is transmitted on the UART. LED six is toggled each time
|
||||
* the string is CORRECTLY received on the UART. LED seven is latched on should
|
||||
* an error be detected in any task or co-routine.
|
||||
*
|
||||
* In addition the idle task makes repetative calls to
|
||||
* prvSetAndCheckRegisters(). This simply loads the general purpose registers
|
||||
* with a known value, then checks each register to ensure the held value is
|
||||
* still correct. As a low priority task this checking routine is likely to
|
||||
* get repeatedly swapped in and out. A register being found to contain an
|
||||
* incorrect value is therefore indicative of an error in the task switching
|
||||
* mechansim.
|
||||
*
|
||||
*/
|
||||
|
||||
/* Scheduler include files. */
|
||||
#include "FreeRTOS.h"
|
||||
#include "task.h"
|
||||
#include "queue.h"
|
||||
#include "croutine.h"
|
||||
|
||||
/* Demo application include files. */
|
||||
#include "partest.h"
|
||||
#include "crflash.h"
|
||||
|
||||
/* Library include files. */
|
||||
#include "LM3Sxxx.h"
|
||||
#include "pdc.h"
|
||||
|
||||
/* The time to delay between writing each character to the LCD. */
|
||||
#define mainCHAR_WRITE_DELAY ( 2 / portTICK_RATE_MS )
|
||||
|
||||
/* The time to delay between writing each string to the LCD. */
|
||||
#define mainSTRING_WRITE_DELAY ( 400 / portTICK_RATE_MS )
|
||||
|
||||
/* The number of flash co-routines to create. */
|
||||
#define mainNUM_FLASH_CO_ROUTINES ( 5 )
|
||||
|
||||
/* The length of the queue used to pass received characters to the Comms Rx
|
||||
task. */
|
||||
#define mainRX_QUEUE_LEN ( 5 )
|
||||
|
||||
/* The priority of the co-routine used to initiate the transmission of the
|
||||
string on UART 0. */
|
||||
#define mainTX_CO_ROUTINE_PRIORITY ( 1 )
|
||||
|
||||
/* The priority of the co-routine used to receive characters from the UART. */
|
||||
#define mainRX_CO_ROUTINE_PRIORITY ( 2 )
|
||||
|
||||
/* Only one co-routine is created so its index is not important. */
|
||||
#define mainTX_CO_ROUTINE_INDEX ( 0 )
|
||||
#define mainRX_CO_ROUTINE_INDEX ( 0 )
|
||||
|
||||
/* The time between transmissions of the string on UART 0. This is pseudo
|
||||
random in order to generate a bit or randomness to when the interrupts occur.*/
|
||||
#define mainMIN_TX_DELAY ( 40 / portTICK_RATE_MS )
|
||||
#define mainMAX_TX_DELAY ( ( portTickType ) 0x7f )
|
||||
#define mainOFFSET_TIME ( ( portTickType ) 3 )
|
||||
|
||||
/* The time the Comms Rx task should wait to receive a character. This should
|
||||
be slightly longer than the time between transmissions. If we do not receive
|
||||
a character after this time then there must be an error in the transmission or
|
||||
the timing of the transmission. */
|
||||
#define mainCOMMS_RX_DELAY ( mainMAX_TX_DELAY + 20 )
|
||||
|
||||
/* The task priorites. */
|
||||
#define mainLCD_TASK_PRIORITY ( tskIDLE_PRIORITY )
|
||||
#define mainCOMMS_RX_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
|
||||
|
||||
/* The LED's toggled by the various tasks. */
|
||||
#define mainCOMMS_FAIL_LED ( 7 )
|
||||
#define mainCOMMS_RX_LED ( 6 )
|
||||
#define mainCOMMS_TX_LED ( 5 )
|
||||
|
||||
/* The baud rate used by the UART comms tasks/co-routine. */
|
||||
#define mainBAUD_RATE ( 57600 )
|
||||
|
||||
/* FIFO setting for the UART. The FIFO is not used to create a better test. */
|
||||
#define mainFIFO_SET ( 0x10 )
|
||||
|
||||
/* The string that is transmitted on the UART contains sequentially the
|
||||
characters from mainFIRST_TX_CHAR to mainLAST_TX_CHAR. */
|
||||
#define mainFIRST_TX_CHAR '0'
|
||||
#define mainLAST_TX_CHAR 'z'
|
||||
|
||||
/* Just used to walk through the program memory in order that some random data
|
||||
can be generated. */
|
||||
#define mainTOTAL_PROGRAM_MEMORY ( ( unsigned long * ) ( 8 * 1024 ) )
|
||||
#define mainFIRST_PROGRAM_BYTES ( ( unsigned long * ) 4 )
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
* The task that rotates text on the LCD.
|
||||
*/
|
||||
static void vLCDTask( void * pvParameters );
|
||||
|
||||
/*
|
||||
* The task that receives the characters from UART 0.
|
||||
*/
|
||||
static void vCommsRxCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex );
|
||||
|
||||
/*
|
||||
* The co-routine that periodically initiates the transmission of the string on
|
||||
* the UART.
|
||||
*/
|
||||
static void vSerialTxCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex );
|
||||
|
||||
/*
|
||||
* Writes a string the the LCD.
|
||||
*/
|
||||
static void prvWriteString( const char *pcString );
|
||||
|
||||
/*
|
||||
* Initialisation routine for the UART.
|
||||
*/
|
||||
static void vSerialInit( void );
|
||||
|
||||
/*
|
||||
* Thread safe write to the PDC.
|
||||
*/
|
||||
static void prvPDCWrite( char cAddress, char cData );
|
||||
|
||||
/*
|
||||
* Function to simply set a known value into the general purpose registers
|
||||
* then read them back to ensure they remain set correctly. An incorrect value
|
||||
* being indicative of an error in the task switching mechanism.
|
||||
*/
|
||||
void prvSetAndCheckRegisters( void );
|
||||
|
||||
/*
|
||||
* Latch the LED that indicates that an error has occurred.
|
||||
*/
|
||||
void vSetErrorLED( void );
|
||||
|
||||
/*
|
||||
* Sets up the PLL and ports used by the demo.
|
||||
*/
|
||||
static void prvSetupHardware( void );
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Error flag set to pdFAIL if an error is encountered in the tasks/co-routines
|
||||
defined within this file. */
|
||||
unsigned portBASE_TYPE uxErrorStatus = pdPASS;
|
||||
|
||||
/* The next character to transmit. */
|
||||
static char cNextChar;
|
||||
|
||||
/* The queue used to transmit characters from the interrupt to the Comms Rx
|
||||
task. */
|
||||
static xQueueHandle xCommsQueue;
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
int main( void )
|
||||
{
|
||||
/* Create the queue used to communicate between the UART ISR and the Comms
|
||||
Rx task. */
|
||||
xCommsQueue = xQueueCreate( mainRX_QUEUE_LEN, sizeof( char ) );
|
||||
|
||||
/* Setup the ports used by the demo and the clock. */
|
||||
prvSetupHardware();
|
||||
|
||||
/* Create the co-routines that flash the LED's. */
|
||||
vStartFlashCoRoutines( mainNUM_FLASH_CO_ROUTINES );
|
||||
|
||||
/* Create the co-routine that initiates the transmission of characters
|
||||
on the UART. */
|
||||
xCoRoutineCreate( vSerialTxCoRoutine, mainTX_CO_ROUTINE_PRIORITY, mainTX_CO_ROUTINE_INDEX );
|
||||
|
||||
/* Create the co-routine that receives characters from the UART. */
|
||||
xCoRoutineCreate( vCommsRxCoRoutine, mainRX_CO_ROUTINE_PRIORITY, mainRX_CO_ROUTINE_INDEX );
|
||||
|
||||
/* Create the LCD task. */
|
||||
xTaskCreate( vLCDTask, "LCD", configMINIMAL_STACK_SIZE, NULL, mainLCD_TASK_PRIORITY, NULL );
|
||||
|
||||
/* Start the scheduler running the tasks and co-routines just created. */
|
||||
vTaskStartScheduler();
|
||||
|
||||
/* Should not get here unless we did not have enough memory to start the
|
||||
scheduler. */
|
||||
for( ;; );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvSetupHardware( void )
|
||||
{
|
||||
/* Setup the PLL. */
|
||||
SysCtlClockSet( SYSCTL_SYSDIV_10 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_6MHZ );
|
||||
|
||||
/* Initialise the hardware used to talk to the LCD, LED's and UART. */
|
||||
PDCInit();
|
||||
vParTestInitialise();
|
||||
vSerialInit();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vApplicationIdleHook( void )
|
||||
{
|
||||
/* The co-routines are executed in the idle task using the idle task
|
||||
hook. */
|
||||
for( ;; )
|
||||
{
|
||||
/* Schedule the co-routines. */
|
||||
vCoRoutineSchedule();
|
||||
|
||||
/* Run the register check function between each co-routine. */
|
||||
prvSetAndCheckRegisters();
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvWriteString( const char *pcString )
|
||||
{
|
||||
/* Write pcString to the LED, pausing between each character. */
|
||||
prvPDCWrite(PDC_LCD_CSR, LCD_CLEAR);
|
||||
while( *pcString )
|
||||
{
|
||||
vTaskDelay( mainCHAR_WRITE_DELAY );
|
||||
prvPDCWrite( PDC_LCD_RAM, *pcString );
|
||||
pcString++;
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vLCDTask( void * pvParameters )
|
||||
{
|
||||
unsigned portBASE_TYPE uxIndex;
|
||||
const unsigned char ucCFGData[] = {
|
||||
0x30, /* Set data bus to 8-bits. */
|
||||
0x30,
|
||||
0x30,
|
||||
0x3C, /* Number of lines/font. */
|
||||
0x08, /* Display off. */
|
||||
0x01, /* Display clear. */
|
||||
0x06, /* Entry mode [cursor dir][shift]. */
|
||||
0x0C /* Display on [display on][curson on][blinking on]. */
|
||||
};
|
||||
|
||||
/* The strings that are written to the LCD. */
|
||||
const char *pcStringsToDisplay[] = {
|
||||
"Stellaris",
|
||||
"Demo",
|
||||
"Two",
|
||||
"www.FreeRTOS.org",
|
||||
""
|
||||
};
|
||||
|
||||
/* Configure the LCD. */
|
||||
uxIndex = 0;
|
||||
while( uxIndex < sizeof( ucCFGData ) )
|
||||
{
|
||||
prvPDCWrite( PDC_LCD_CSR, ucCFGData[ uxIndex ] );
|
||||
uxIndex++;
|
||||
vTaskDelay( mainCHAR_WRITE_DELAY );
|
||||
}
|
||||
|
||||
/* Turn the LCD Backlight on. */
|
||||
prvPDCWrite( PDC_CSR, 0x01 );
|
||||
|
||||
/* Clear display. */
|
||||
vTaskDelay( mainCHAR_WRITE_DELAY );
|
||||
prvPDCWrite( PDC_LCD_CSR, LCD_CLEAR );
|
||||
|
||||
uxIndex = 0;
|
||||
for( ;; )
|
||||
{
|
||||
/* Display the string on the LCD. */
|
||||
prvWriteString( pcStringsToDisplay[ uxIndex ] );
|
||||
|
||||
/* Move on to the next string - wrapping if necessary. */
|
||||
uxIndex++;
|
||||
if( *( pcStringsToDisplay[ uxIndex ] ) == 0x00 )
|
||||
{
|
||||
uxIndex = 0;
|
||||
/* Longer pause on the last string to be sent. */
|
||||
vTaskDelay( mainSTRING_WRITE_DELAY * 2 );
|
||||
}
|
||||
|
||||
/* Wait until it is time to move onto the next string. */
|
||||
vTaskDelay( mainSTRING_WRITE_DELAY );
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vCommsRxCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex )
|
||||
{
|
||||
static char cRxedChar, cExpectedChar = mainFIRST_TX_CHAR;
|
||||
portBASE_TYPE xResult;
|
||||
|
||||
crSTART( xHandle );
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
/* Wait for a character to be received. */
|
||||
crQUEUE_RECEIVE( xHandle, xCommsQueue, ( void * ) &cRxedChar, mainCOMMS_RX_DELAY, &xResult );
|
||||
|
||||
/* Was the character recived (if any) the expected character. */
|
||||
if( ( cRxedChar != cExpectedChar ) || ( xResult != pdPASS ) )
|
||||
{
|
||||
/* Got an unexpected character. This can sometimes occur when
|
||||
reseting the system using the debugger leaving characters already
|
||||
in the UART regsters. */
|
||||
uxErrorStatus = pdFAIL;
|
||||
|
||||
/* Resync by waiting for the end of the current string. */
|
||||
while( cRxedChar != mainLAST_TX_CHAR )
|
||||
{
|
||||
crQUEUE_RECEIVE( xHandle, xCommsQueue, ( void * ) &cRxedChar, mainCOMMS_RX_DELAY, &xResult );
|
||||
}
|
||||
|
||||
/* The next expected character is the start of the string again. */
|
||||
cExpectedChar = mainFIRST_TX_CHAR;
|
||||
}
|
||||
else
|
||||
{
|
||||
if( cExpectedChar == mainLAST_TX_CHAR )
|
||||
{
|
||||
/* We have reached the end of the string - we now expect to
|
||||
receive the first character in the string again. The LED is
|
||||
toggled to indicate that the entire string was received without
|
||||
error. */
|
||||
vParTestToggleLED( mainCOMMS_RX_LED );
|
||||
cExpectedChar = mainFIRST_TX_CHAR;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* We got the expected character, we now expect to receive the
|
||||
next character in the string. */
|
||||
cExpectedChar++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
crEND();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vSerialTxCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex )
|
||||
{
|
||||
portTickType xDelayPeriod;
|
||||
static unsigned long *pulRandomBytes = mainFIRST_PROGRAM_BYTES;
|
||||
|
||||
/* Co-routine MUST start with a call to crSTART. */
|
||||
crSTART( xHandle );
|
||||
|
||||
for(;;)
|
||||
{
|
||||
/* Was the previously transmitted string received correctly? */
|
||||
if( uxErrorStatus != pdPASS )
|
||||
{
|
||||
/* An error was encountered so set the error LED. */
|
||||
vSetErrorLED();
|
||||
}
|
||||
|
||||
/* The next character to Tx is the first in the string. */
|
||||
cNextChar = mainFIRST_TX_CHAR;
|
||||
|
||||
UARTIntDisable( UART0_BASE, UART_INT_TX );
|
||||
{
|
||||
/* Send the first character. */
|
||||
if( !( HWREG( UART0_BASE + UART_O_FR ) & UART_FR_TXFF ) )
|
||||
{
|
||||
HWREG( UART0_BASE + UART_O_DR ) = cNextChar;
|
||||
}
|
||||
|
||||
/* Move the variable to the char to Tx on so the ISR transmits
|
||||
the next character in the string once this one has completed. */
|
||||
cNextChar++;
|
||||
}
|
||||
UARTIntEnable(UART0_BASE, UART_INT_TX);
|
||||
|
||||
/* Toggle the LED to show a new string is being transmitted. */
|
||||
vParTestToggleLED( mainCOMMS_TX_LED );
|
||||
|
||||
/* Delay before we start the string off again. A pseudo-random delay
|
||||
is used as this will provide a better test. */
|
||||
xDelayPeriod = xTaskGetTickCount() + ( *pulRandomBytes );
|
||||
|
||||
pulRandomBytes++;
|
||||
if( pulRandomBytes > mainTOTAL_PROGRAM_MEMORY )
|
||||
{
|
||||
pulRandomBytes = mainFIRST_PROGRAM_BYTES;
|
||||
}
|
||||
|
||||
/* Make sure we don't wait too long... */
|
||||
xDelayPeriod &= mainMAX_TX_DELAY;
|
||||
|
||||
/* ...but we do want to wait. */
|
||||
if( xDelayPeriod < mainMIN_TX_DELAY )
|
||||
{
|
||||
xDelayPeriod = mainMIN_TX_DELAY;
|
||||
}
|
||||
|
||||
/* Block for the random(ish) time. */
|
||||
crDELAY( xHandle, xDelayPeriod );
|
||||
}
|
||||
|
||||
/* Co-routine MUST end with a call to crEND. */
|
||||
crEND();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vSerialInit( void )
|
||||
{
|
||||
/* Enable the UART. GPIOA has already been initialised. */
|
||||
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
|
||||
|
||||
/* Set GPIO A0 and A1 as peripheral function. They are used to output the
|
||||
UART signals. */
|
||||
GPIODirModeSet( GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1, GPIO_DIR_MODE_HW );
|
||||
|
||||
/* Configure the UART for 8-N-1 operation. */
|
||||
UARTConfigSet( UART0_BASE, mainBAUD_RATE, UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_ONE );
|
||||
|
||||
/* We dont want to use the fifo. This is for test purposes to generate
|
||||
as many interrupts as possible. */
|
||||
HWREG( UART0_BASE + UART_O_LCR_H ) &= ~mainFIFO_SET;
|
||||
|
||||
/* Enable both Rx and Tx interrupts. */
|
||||
HWREG( UART0_BASE + UART_O_IM ) |= ( UART_INT_TX | UART_INT_RX );
|
||||
IntEnable( INT_UART0 );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vUART_ISR(void)
|
||||
{
|
||||
unsigned long ulStatus;
|
||||
char cRxedChar;
|
||||
portBASE_TYPE xTaskWokenByPost = pdFALSE;
|
||||
|
||||
/* What caused the interrupt. */
|
||||
ulStatus = UARTIntStatus( UART0_BASE, pdTRUE );
|
||||
|
||||
/* Clear the interrupt. */
|
||||
UARTIntClear( UART0_BASE, ulStatus );
|
||||
|
||||
/* Was an Rx interrpt pending? */
|
||||
if( ulStatus & UART_INT_RX )
|
||||
{
|
||||
if( ( HWREG(UART0_BASE + UART_O_FR ) & UART_FR_RXFF ) )
|
||||
{
|
||||
/* Get the char from the buffer and post it onto the queue of
|
||||
Rxed chars. Posting the character should wake the task that is
|
||||
blocked on the queue waiting for characters. */
|
||||
cRxedChar = ( char ) HWREG( UART0_BASE + UART_O_DR );
|
||||
xTaskWokenByPost = crQUEUE_SEND_FROM_ISR( xCommsQueue, &cRxedChar, xTaskWokenByPost );
|
||||
}
|
||||
}
|
||||
|
||||
/* Was a Tx interrupt pending? */
|
||||
if( ulStatus & UART_INT_TX )
|
||||
{
|
||||
/* Send the next character in the string. We are not using the FIFO. */
|
||||
if( cNextChar <= mainLAST_TX_CHAR )
|
||||
{
|
||||
if( !( HWREG( UART0_BASE + UART_O_FR ) & UART_FR_TXFF ) )
|
||||
{
|
||||
HWREG( UART0_BASE + UART_O_DR ) = cNextChar;
|
||||
}
|
||||
cNextChar++;
|
||||
}
|
||||
}
|
||||
|
||||
if( xTaskWokenByPost )
|
||||
{
|
||||
/* We are posting to a co-routine rather than a task so don't bother
|
||||
causing a task switch. */
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvPDCWrite( char cAddress, char cData )
|
||||
{
|
||||
vTaskSuspendAll();
|
||||
{
|
||||
PDCWrite( cAddress, cData );
|
||||
}
|
||||
xTaskResumeAll();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vSetErrorLED( void )
|
||||
{
|
||||
vParTestSetLED( mainCOMMS_FAIL_LED, pdTRUE );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
__asm void prvSetAndCheckRegisters( void )
|
||||
{
|
||||
extern vSetErrorLED
|
||||
|
||||
/* Fill the general purpose registers with known values. */
|
||||
mov r11, #10
|
||||
add r0, r11, #1
|
||||
add r1, r11, #2
|
||||
add r2, r11, #3
|
||||
add r3, r11, #4
|
||||
add r4, r11, #5
|
||||
add r5, r11, #6
|
||||
add r6, r11, #7
|
||||
add r7, r11, #8
|
||||
add r8, r11, #9
|
||||
add r9, r11, #10
|
||||
add r10, r11, #11
|
||||
add r12, r11, #12
|
||||
|
||||
/* Check the values are as expected. */
|
||||
cmp r11, #10
|
||||
bne set_error_led
|
||||
cmp r0, #11
|
||||
bne set_error_led
|
||||
cmp r1, #12
|
||||
bne set_error_led
|
||||
cmp r2, #13
|
||||
bne set_error_led
|
||||
cmp r3, #14
|
||||
bne set_error_led
|
||||
cmp r4, #15
|
||||
bne set_error_led
|
||||
cmp r5, #16
|
||||
bne set_error_led
|
||||
cmp r6, #17
|
||||
bne set_error_led
|
||||
cmp r7, #18
|
||||
bne set_error_led
|
||||
cmp r8, #19
|
||||
bne set_error_led
|
||||
cmp r9, #20
|
||||
bne set_error_led
|
||||
cmp r10, #21
|
||||
bne set_error_led
|
||||
cmp r12, #22
|
||||
bne set_error_led
|
||||
bx lr
|
||||
|
||||
set_error_led;
|
||||
push {r14}
|
||||
ldr r1, =vSetErrorLED
|
||||
blx r1
|
||||
pop {r14}
|
||||
bx lr;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
3
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo2/readme.txt
Normal file
3
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/Demo2/readme.txt
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
Move these two fines into the Demo/CORTEX_LM3S102_KEIL directory to run Demo 2.
|
||||
|
||||
See the port documentation on the www.FreeRTOS.org site for more information.
|
||||
51
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/FreeRTOS.Opt
Normal file
51
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/FreeRTOS.Opt
Normal file
|
|
@ -0,0 +1,51 @@
|
|||
### uVision2 Project, (C) Keil Software
|
||||
### Do not modify !
|
||||
|
||||
cExt (*.c)
|
||||
aExt (*.s*; *.src; *.a*)
|
||||
oExt (*.obj)
|
||||
lExt (*.lib)
|
||||
tExt (*.txt; *.h; *.inc)
|
||||
pExt (*.plm)
|
||||
CppX (*.cpp)
|
||||
DaveTm { 0,0,0,0,0,0,0,0 }
|
||||
|
||||
Target (LM3S1xx), 0x0004 // Tools: 'ARM-ADS'
|
||||
GRPOPT 1,(Source),0,0,0
|
||||
GRPOPT 2,(Demo),0,0,0
|
||||
|
||||
OPTFFF 1,1,1,0,0,0,0,0,<..\..\Source\croutine.c><croutine.c>
|
||||
OPTFFF 1,2,1,0,0,0,0,0,<..\..\Source\list.c><list.c>
|
||||
OPTFFF 1,3,1,0,0,0,0,0,<..\..\Source\queue.c><queue.c>
|
||||
OPTFFF 1,4,1,0,0,0,0,0,<..\..\Source\tasks.c><tasks.c>
|
||||
OPTFFF 1,5,1,0,0,0,0,0,<..\..\Source\portable\MemMang\heap_1.c><heap_1.c>
|
||||
OPTFFF 1,6,1,0,0,0,0,0,<..\..\Source\portable\RVDS\ARM_CM3\port.c><port.c>
|
||||
OPTFFF 2,7,1,0,0,0,0,0,<.\main.c><main.c>
|
||||
OPTFFF 2,8,2,0,0,0,0,0,<.\init\Startup.s><Startup.s>
|
||||
OPTFFF 2,9,1,0,0,0,0,0,<..\Common\Minimal\crflash.c><crflash.c>
|
||||
OPTFFF 2,10,1,0,0,0,0,0,<.\ParTest\ParTest.c><ParTest.c>
|
||||
OPTFFF 2,11,1,0,0,0,0,0,<.\include\pdc.c><pdc.c>
|
||||
OPTFFF 2,12,4,0,0,0,0,0,<..\Common\drivers\LuminaryMicro\Keil\driverlib.lib><driverlib.lib>
|
||||
|
||||
|
||||
TARGOPT 1, (LM3S1xx)
|
||||
ADSCLK=20000000
|
||||
OPTTT 1,1,1,0
|
||||
OPTHX 1,65535,0,0,0
|
||||
OPTLX 79,66,8,<.\uvision\>
|
||||
OPTOX 16
|
||||
OPTLT 1,1,1,0,1,1,0,1,0,0,0,0
|
||||
OPTXL 1,1,1,1,1,1,1,0,0
|
||||
OPTFL 1,0,1
|
||||
OPTAX 0
|
||||
OPTDL (SARMCM3.DLL)()(DLM.DLL)(-pLM3S101)(SARMCM3.DLL)()(TLM.DLL)(-pLM3S101)
|
||||
OPTDBG 49150,1,()()()()()()()()()() (BIN\UL2CM3.DLL)()()()
|
||||
OPTKEY 0,(DLGTARM)((1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=-1,-1,-1,-1,0)(110=-1,-1,-1,-1,0)(100=-1,-1,-1,-1,0)(101=-1,-1,-1,-1,0)(102=-1,-1,-1,-1,0)(161=-1,-1,-1,-1,0)(162=-1,-1,-1,-1,0)(150=-1,-1,-1,-1,0)(1012=-1,-1,-1,-1,0)(1014=-1,-1,-1,-1,0)(1016=-1,-1,-1,-1,0))
|
||||
OPTKEY 0,(ARMDBGFLAGS)()
|
||||
OPTKEY 0,(DLGUARM)((105=-1,-1,-1,-1,0)(106=-1,-1,-1,-1,0)(107=-1,-1,-1,-1,0))
|
||||
OPTKEY 0,(UL2CM3)(-UU0226F8E -O14 -S0 -C0 -N00("ARM CoreSight JTAG-DP") -D00(1BA00477) -L00(4) -TO18 -TC10000000 -TP21 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP7 -FO7 -FD20000000 -FC800 -FN1 -FF0LM3S_8 -FS00 -FL02000)
|
||||
OPTDF 0x80
|
||||
OPTLE <>
|
||||
OPTLC <>
|
||||
EndOpt
|
||||
|
||||
112
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/FreeRTOS.Uv2
Normal file
112
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/FreeRTOS.Uv2
Normal file
|
|
@ -0,0 +1,112 @@
|
|||
### uVision2 Project, (C) Keil Software
|
||||
### Do not modify !
|
||||
|
||||
Target (LM3S1xx), 0x0004 // Tools: 'ARM-ADS'
|
||||
|
||||
Group (Source)
|
||||
Group (Demo)
|
||||
|
||||
File 1,1,<..\..\Source\croutine.c><croutine.c>
|
||||
File 1,1,<..\..\Source\list.c><list.c>
|
||||
File 1,1,<..\..\Source\queue.c><queue.c>
|
||||
File 1,1,<..\..\Source\tasks.c><tasks.c>
|
||||
File 1,1,<..\..\Source\portable\MemMang\heap_1.c><heap_1.c>
|
||||
File 1,1,<..\..\Source\portable\RVDS\ARM_CM3\port.c><port.c>
|
||||
File 2,1,<.\main.c><main.c>
|
||||
File 2,2,<.\init\Startup.s><Startup.s>
|
||||
File 2,1,<..\Common\Minimal\crflash.c><crflash.c>
|
||||
File 2,1,<.\ParTest\ParTest.c><ParTest.c>
|
||||
File 2,1,<.\include\pdc.c><pdc.c>
|
||||
File 2,4,<..\Common\drivers\LuminaryMicro\Keil\driverlib.lib><driverlib.lib>
|
||||
|
||||
|
||||
Options 1,0,0 // Target 'LM3S1xx'
|
||||
Device (LM3S101)
|
||||
Vendor (Luminary Micro)
|
||||
Cpu (IRAM(0x20000000-0x200007FF) IROM(0-0x1FFF) CLOCK(20000000) CPUTYPE("Cortex-M3"))
|
||||
FlashUt ()
|
||||
StupF ("STARTUP\Luminary\Startup.s" ("Luminary Startup Code"))
|
||||
FlashDR (UL2CM3(-U40296420 -O7 -S0 -C0 -FO7 -FD20000000 -FC800 -FN1 -FF0LM3S_8 -FS00 -FL02000))
|
||||
DevID (4079)
|
||||
Rgf (LM3Sxxx.H)
|
||||
Mem ()
|
||||
C ()
|
||||
A ()
|
||||
RL ()
|
||||
OH ()
|
||||
DBC_IFX ()
|
||||
DBC_CMS ()
|
||||
DBC_AMS ()
|
||||
DBC_LMS ()
|
||||
UseEnv=0
|
||||
EnvBin ()
|
||||
EnvInc ()
|
||||
EnvLib ()
|
||||
EnvReg (ÿLuminary\)
|
||||
OrgReg (ÿLuminary\)
|
||||
TgStat=16
|
||||
OutDir (.\uvision\)
|
||||
OutName (RTOSDemo)
|
||||
GenApp=1
|
||||
GenLib=0
|
||||
GenHex=0
|
||||
Debug=1
|
||||
Browse=1
|
||||
LstDir (.\uvision\)
|
||||
HexSel=1
|
||||
MG32K=0
|
||||
TGMORE=0
|
||||
RunUsr 0 0 <>
|
||||
RunUsr 1 0 <>
|
||||
BrunUsr 0 0 <>
|
||||
BrunUsr 1 0 <>
|
||||
CrunUsr 0 0 <>
|
||||
CrunUsr 1 0 <>
|
||||
SVCSID <>
|
||||
GLFLAGS=1790
|
||||
ADSFLGA { 243,31,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
|
||||
ACPUTYP ("Cortex-M3")
|
||||
RVDEV ()
|
||||
ADSTFLGA { 0,12,0,2,99,0,0,66,0,0,0,0,0,0,0,0,0,0,0,0 }
|
||||
OCMADSOCM { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
|
||||
OCMADSIRAM { 0,0,0,0,32,0,8,0,0 }
|
||||
OCMADSIROM { 1,0,0,0,0,0,32,0,0 }
|
||||
OCMADSXRAM { 0,0,0,0,0,0,0,0,0 }
|
||||
OCR_RVCT { 1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,32,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,32,0,8,0,0,0,0,0,0,0,0,0,0,0 }
|
||||
RV_STAVEC ()
|
||||
ADSCCFLG { 8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
|
||||
ADSCMISC ()
|
||||
ADSCDEFN (RVDS_ARMCM3_LM3S102)
|
||||
ADSCUDEF ()
|
||||
ADSCINCD (C:\Keil\ARM\RV30\LIB\Luminary;..\CORTEX_LM3S102_KEIL;..\..\Source\portable\RVDS\ARM_CM3;..\..\Source\include;..\Common\include;.\include)
|
||||
ADSASFLG { 65,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
|
||||
ADSAMISC (--diag_suppress 1581)
|
||||
ADSADEFN ()
|
||||
ADSAUDEF ()
|
||||
ADSAINCD ()
|
||||
PropFld { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
|
||||
IncBld=1
|
||||
AlwaysBuild=0
|
||||
GenAsm=0
|
||||
AsmAsm=0
|
||||
PublicsOnly=0
|
||||
StopCode=3
|
||||
CustArgs ()
|
||||
LibMods ()
|
||||
ADSLDFG { 16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
|
||||
ADSLDTA (0x00000000)
|
||||
ADSLDDA (0x20000000)
|
||||
ADSLDSC ()
|
||||
ADSLDIB ()
|
||||
ADSLDIC ()
|
||||
ADSLDMC (--entry Reset_Handler)
|
||||
ADSLDIF ()
|
||||
ADSLDDW (6306)
|
||||
OPTDL (SARMCM3.DLL)()(DLM.DLL)(-pLM3S101)(SARMCM3.DLL)()(TLM.DLL)(-pLM3S101)
|
||||
OPTDBG 49150,1,()()()()()()()()()() (BIN\UL2CM3.DLL)()()()
|
||||
FLASH1 { 1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0 }
|
||||
FLASH2 (BIN\UL2CM3.DLL)
|
||||
FLASH3 ("" ())
|
||||
FLASH4 ()
|
||||
EndOpt
|
||||
|
||||
113
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/FreeRTOSConfig.h
Normal file
113
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/FreeRTOSConfig.h
Normal file
|
|
@ -0,0 +1,113 @@
|
|||
/*
|
||||
FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
|
||||
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
* Complete, revised, and edited pdf reference manuals are also *
|
||||
* available. *
|
||||
* *
|
||||
* Purchasing FreeRTOS documentation will not only help you, by *
|
||||
* ensuring you get running as quickly as possible and with an *
|
||||
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
* the FreeRTOS project to continue with its mission of providing *
|
||||
* professional grade, cross platform, de facto standard solutions *
|
||||
* for microcontrollers - completely free of charge! *
|
||||
* *
|
||||
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
* *
|
||||
* Thank you for using FreeRTOS, and thank you for your support! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
>>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
distribute a combined work that includes FreeRTOS without being obliged to
|
||||
provide the source code for proprietary components outside of the FreeRTOS
|
||||
kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
more details. You should have received a copy of the GNU General Public
|
||||
License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
by writing to Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong? *
|
||||
* *
|
||||
* http://www.FreeRTOS.org/FAQHelp.html *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, training, latest information,
|
||||
license and contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool.
|
||||
|
||||
Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
|
||||
the code with commercial support, indemnification, and middleware, under
|
||||
the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
|
||||
provide a safety engineered and independently SIL3 certified version under
|
||||
the SafeRTOS brand: http://www.SafeRTOS.com.
|
||||
*/
|
||||
|
||||
#ifndef FREERTOS_CONFIG_H
|
||||
#define FREERTOS_CONFIG_H
|
||||
|
||||
/*-----------------------------------------------------------
|
||||
* Application specific definitions.
|
||||
*
|
||||
* These definitions should be adjusted for your particular hardware and
|
||||
* application requirements.
|
||||
*
|
||||
* THESE PARAMETERS ARE DESCRIBED WITHIN THE 'CONFIGURATION' SECTION OF THE
|
||||
* FreeRTOS API DOCUMENTATION AVAILABLE ON THE FreeRTOS.org WEB SITE.
|
||||
*
|
||||
* See http://www.freertos.org/a00110.html.
|
||||
*----------------------------------------------------------*/
|
||||
|
||||
#define configUSE_PREEMPTION 1
|
||||
#define configUSE_IDLE_HOOK 1
|
||||
#define configUSE_TICK_HOOK 0
|
||||
#define configCPU_CLOCK_HZ ( ( unsigned long ) 20000000 )
|
||||
#define configTICK_RATE_HZ ( ( portTickType ) 1000 )
|
||||
#define configMINIMAL_STACK_SIZE ( ( unsigned short ) 59 )
|
||||
#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 1468 ) )
|
||||
#define configMAX_TASK_NAME_LEN ( 3 )
|
||||
#define configUSE_TRACE_FACILITY 0
|
||||
#define configUSE_16_BIT_TICKS 0
|
||||
#define configIDLE_SHOULD_YIELD 0
|
||||
#define configUSE_CO_ROUTINES 1
|
||||
|
||||
#define configMAX_PRIORITIES ( ( unsigned portBASE_TYPE ) 2 )
|
||||
#define configMAX_CO_ROUTINE_PRIORITIES ( 2 )
|
||||
|
||||
/* Set the following definitions to 1 to include the API function, or zero
|
||||
to exclude the API function. */
|
||||
|
||||
#define INCLUDE_vTaskPrioritySet 0
|
||||
#define INCLUDE_uxTaskPriorityGet 0
|
||||
#define INCLUDE_vTaskDelete 0
|
||||
#define INCLUDE_vTaskCleanUpResources 0
|
||||
#define INCLUDE_vTaskSuspend 0
|
||||
#define INCLUDE_vTaskDelayUntil 0
|
||||
#define INCLUDE_vTaskDelay 1
|
||||
|
||||
#define configKERNEL_INTERRUPT_PRIORITY 255
|
||||
#define configMAX_SYSCALL_INTERRUPT_PRIORITY 191 /* equivalent to 0xa0, or priority 5. */
|
||||
|
||||
|
||||
#endif /* FREERTOS_CONFIG_H */
|
||||
146
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/ParTest/ParTest.c
Normal file
146
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/ParTest/ParTest.c
Normal file
|
|
@ -0,0 +1,146 @@
|
|||
/*
|
||||
FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
|
||||
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
* Complete, revised, and edited pdf reference manuals are also *
|
||||
* available. *
|
||||
* *
|
||||
* Purchasing FreeRTOS documentation will not only help you, by *
|
||||
* ensuring you get running as quickly as possible and with an *
|
||||
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
* the FreeRTOS project to continue with its mission of providing *
|
||||
* professional grade, cross platform, de facto standard solutions *
|
||||
* for microcontrollers - completely free of charge! *
|
||||
* *
|
||||
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
* *
|
||||
* Thank you for using FreeRTOS, and thank you for your support! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
>>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
distribute a combined work that includes FreeRTOS without being obliged to
|
||||
provide the source code for proprietary components outside of the FreeRTOS
|
||||
kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
more details. You should have received a copy of the GNU General Public
|
||||
License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
by writing to Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong? *
|
||||
* *
|
||||
* http://www.FreeRTOS.org/FAQHelp.html *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, training, latest information,
|
||||
license and contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool.
|
||||
|
||||
Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
|
||||
the code with commercial support, indemnification, and middleware, under
|
||||
the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
|
||||
provide a safety engineered and independently SIL3 certified version under
|
||||
the SafeRTOS brand: http://www.SafeRTOS.com.
|
||||
*/
|
||||
|
||||
/*-----------------------------------------------------------
|
||||
* Simple parallel port IO routines.
|
||||
*-----------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
*/
|
||||
|
||||
|
||||
#include "FreeRTOS.h"
|
||||
#include "task.h"
|
||||
#include "partest.h"
|
||||
|
||||
#include "pdc.h"
|
||||
|
||||
#define partstPINS (GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 Z | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7)
|
||||
|
||||
#define partstALL_OUTPUTS_OFF ( ( unsigned char ) 0x00 )
|
||||
#define partstMAX_OUTPUT_LED ( ( unsigned char ) 8 )
|
||||
|
||||
static volatile unsigned char ucOutputValue = partstALL_OUTPUTS_OFF;
|
||||
|
||||
void vParTestInitialise( void )
|
||||
{
|
||||
PDCInit();
|
||||
PDCWrite( PDC_LED, ucOutputValue );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
|
||||
{
|
||||
unsigned char ucBit = ( unsigned char ) 1;
|
||||
|
||||
vTaskSuspendAll();
|
||||
{
|
||||
if( uxLED < partstMAX_OUTPUT_LED )
|
||||
{
|
||||
ucBit = ( ( unsigned char ) 1 ) << uxLED;
|
||||
|
||||
if( xValue == pdFALSE )
|
||||
{
|
||||
ucBit ^= ( unsigned char ) 0xff;
|
||||
ucOutputValue &= ucBit;
|
||||
}
|
||||
else
|
||||
{
|
||||
ucOutputValue |= ucBit;
|
||||
}
|
||||
|
||||
PDCWrite( PDC_LED, ucOutputValue );
|
||||
}
|
||||
}
|
||||
xTaskResumeAll();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
|
||||
{
|
||||
unsigned char ucBit;
|
||||
|
||||
vTaskSuspendAll();
|
||||
{
|
||||
if( uxLED < partstMAX_OUTPUT_LED )
|
||||
{
|
||||
ucBit = ( ( unsigned char ) 1 ) << uxLED;
|
||||
|
||||
if( ucOutputValue & ucBit )
|
||||
{
|
||||
ucOutputValue &= ~ucBit;
|
||||
}
|
||||
else
|
||||
{
|
||||
ucOutputValue |= ucBit;
|
||||
}
|
||||
|
||||
PDCWrite( PDC_LED, ucOutputValue );
|
||||
}
|
||||
}
|
||||
xTaskResumeAll();
|
||||
}
|
||||
|
||||
118
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/include/pdc.c
Normal file
118
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/include/pdc.c
Normal file
|
|
@ -0,0 +1,118 @@
|
|||
//*****************************************************************************
|
||||
//
|
||||
// pdc.c - Driver for the Peripheral Device Controller (PDC) on the Stellaris
|
||||
// development board.
|
||||
//
|
||||
// Copyright (c) 2005,2006 Luminary Micro, Inc. All rights reserved.
|
||||
//
|
||||
// Software License Agreement
|
||||
//
|
||||
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
|
||||
// exclusively on LMI's Stellaris Family of microcontroller products.
|
||||
//
|
||||
// The software is owned by LMI and/or its suppliers, and is protected under
|
||||
// applicable copyright laws. All rights are reserved. Any use in violation
|
||||
// of the foregoing restrictions may subject the user to criminal sanctions
|
||||
// under applicable laws, as well as to civil liability for the breach of the
|
||||
// terms and conditions of this license.
|
||||
//
|
||||
// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
|
||||
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
|
||||
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
|
||||
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
|
||||
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
|
||||
//
|
||||
//*****************************************************************************
|
||||
|
||||
#include "LM3Sxxx.h"
|
||||
#include "pdc.h"
|
||||
|
||||
//*****************************************************************************
|
||||
//
|
||||
//! Initializes the connection to the PDC.
|
||||
//!
|
||||
//! This function will enable clocking to the SSI and GPIO A modules, configure
|
||||
//! the GPIO pins to be used for an SSI interface, and it will configure the
|
||||
//! SSI as a 1Mb master device, operating in MOTO mode. It will also enable
|
||||
//! the SSI module, and will enable the chip select for the PDC on the
|
||||
//! Stellaris development board.
|
||||
//!
|
||||
//! This function is contained in <tt>utils/pdc.c</tt>, with
|
||||
//! <tt>utils/pdc.h</tt> containing the API definition for use by applications.
|
||||
//!
|
||||
//! \return None.
|
||||
//
|
||||
//*****************************************************************************
|
||||
void
|
||||
PDCInit(void)
|
||||
{
|
||||
//
|
||||
// Enable the peripherals used to drive the PDC.
|
||||
//
|
||||
SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI);
|
||||
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
|
||||
|
||||
//
|
||||
// Configure the appropriate pins to be SSI instead of GPIO.
|
||||
//
|
||||
GPIODirModeSet(GPIO_PORTA_BASE, SSI_CLK | SSI_TX | SSI_RX,
|
||||
GPIO_DIR_MODE_HW);
|
||||
GPIODirModeSet(GPIO_PORTA_BASE, SSI_CS, GPIO_DIR_MODE_OUT);
|
||||
GPIOPadConfigSet(GPIO_PORTA_BASE, SSI_CLK, GPIO_STRENGTH_4MA,
|
||||
GPIO_PIN_TYPE_STD_WPU);
|
||||
|
||||
//
|
||||
// Configure the SSI port.
|
||||
//
|
||||
SSIConfig(SSI_BASE, SSI_FRF_MOTO_MODE_0, SSI_MODE_MASTER, 1000000, 8);
|
||||
SSIEnable(SSI_BASE);
|
||||
|
||||
//
|
||||
// Reset the PDC SSI state machine. The chip select needs to be held low
|
||||
// for 100ns; the procedure call overhead more than accounts for this time.
|
||||
//
|
||||
GPIOPinWrite(GPIO_PORTA_BASE, PDC_CS, 0);
|
||||
GPIOPinWrite(GPIO_PORTA_BASE, PDC_CS, PDC_CS);
|
||||
}
|
||||
|
||||
//*****************************************************************************
|
||||
//
|
||||
//! Write a PDC register.
|
||||
//!
|
||||
//! \param ucAddr specifies the PDC register to write.
|
||||
//! \param ucData specifies the data to write.
|
||||
//!
|
||||
//! This function will perform the SSI transfers required to write a register
|
||||
//! in the PDC on the Stellaris development board.
|
||||
//!
|
||||
//! This function is contained in <tt>utils/pdc.c</tt>, with
|
||||
//! <tt>utils/pdc.h</tt> containing the API definition for use by applications.
|
||||
//!
|
||||
//! \return None.
|
||||
//
|
||||
//*****************************************************************************
|
||||
void
|
||||
PDCWrite(unsigned char ucAddr, unsigned char ucData)
|
||||
{
|
||||
unsigned long ulTemp;
|
||||
|
||||
//
|
||||
// Send address and write command.
|
||||
//
|
||||
SSIDataPut(SSI_BASE, (ucAddr & 0x0F) | PDC_WR);
|
||||
|
||||
//
|
||||
// Write the data.
|
||||
//
|
||||
SSIDataPut(SSI_BASE, ucData);
|
||||
|
||||
//
|
||||
// Flush data read during address write.
|
||||
//
|
||||
SSIDataGet(SSI_BASE, &ulTemp);
|
||||
|
||||
//
|
||||
// Flush data read during data write.
|
||||
//
|
||||
SSIDataGet(SSI_BASE, &ulTemp);
|
||||
}
|
||||
122
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/include/pdc.h
Normal file
122
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/include/pdc.h
Normal file
|
|
@ -0,0 +1,122 @@
|
|||
//*****************************************************************************
|
||||
//
|
||||
// pdc.h - Stellaris development board Peripheral Device Controller definitions
|
||||
// and prototypes.
|
||||
//
|
||||
// Copyright (c) 2005,2006 Luminary Micro, Inc. All rights reserved.
|
||||
//
|
||||
// Software License Agreement
|
||||
//
|
||||
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
|
||||
// exclusively on LMI's Stellaris Family of microcontroller products.
|
||||
//
|
||||
// The software is owned by LMI and/or its suppliers, and is protected under
|
||||
// applicable copyright laws. All rights are reserved. Any use in violation
|
||||
// of the foregoing restrictions may subject the user to criminal sanctions
|
||||
// under applicable laws, as well as to civil liability for the breach of the
|
||||
// terms and conditions of this license.
|
||||
//
|
||||
// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
|
||||
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
|
||||
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
|
||||
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
|
||||
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
|
||||
//
|
||||
//*****************************************************************************
|
||||
|
||||
#ifndef __PDC_H__
|
||||
#define __PDC_H__
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
//*****************************************************************************
|
||||
//
|
||||
// The registers within the peripheral device controller.
|
||||
//
|
||||
//*****************************************************************************
|
||||
#define PDC_VER 0x0 // Version register
|
||||
#define PDC_CSR 0x1 // Command/Status register
|
||||
#define PDC_DSW 0x4 // DIP Switch register
|
||||
#define PDC_LED 0x5 // LED register
|
||||
#define PDC_LCD_CSR 0x6 // LCD Command/Status register
|
||||
#define PDC_LCD_RAM 0x7 // LCD RAM register
|
||||
#define PDC_GPXDAT 0x8 // GPIO X Data register
|
||||
#define PDC_GPXDIR 0x9 // GPIO X Direction register
|
||||
#define PDC_GPYDAT 0xA // GPIO Y Data register
|
||||
#define PDC_GPYDIR 0xB // GPIO Y Direction register
|
||||
#define PDC_GPZDAT 0xC // GPIO Z Data register
|
||||
#define PDC_GPZDIR 0xD // GPIO Z Direction register
|
||||
|
||||
//*****************************************************************************
|
||||
//
|
||||
// Flags indicating a read or write to the peripheral device controller.
|
||||
//
|
||||
//*****************************************************************************
|
||||
#define PDC_RD 0x80 // PDC read command
|
||||
#define PDC_WR 0x00 // PDC write command
|
||||
|
||||
//*****************************************************************************
|
||||
//
|
||||
// LCD panel (Crystalfontz CFAH1602B) commands, RS = 0
|
||||
//
|
||||
//*****************************************************************************
|
||||
#define LCD_CLEAR 0x01 // Clear display (0 fill DDRAM).
|
||||
#define LCD_HOME 0x02 // Cursor home.
|
||||
#define LCD_MODE 0x04 // Set entry mode (cursor dir)
|
||||
#define LCD_ON 0x08 // Set display, cursor, blinking
|
||||
// on/off
|
||||
#define LCD_CUR 0x10 // Cursor, display shift
|
||||
#define LCD_IF 0x20 // Set interface data length,
|
||||
// lines, font
|
||||
#define LCD_CGADDR 0x40 // Set CGRAM AC address
|
||||
#define LCD_DDADDR 0x80 // Set DDRAM AC address
|
||||
|
||||
//*****************************************************************************
|
||||
//
|
||||
// LCD Status bit
|
||||
//
|
||||
//*****************************************************************************
|
||||
#define LCD_B_BUSY 0x80 // Busy flag.
|
||||
|
||||
//*****************************************************************************
|
||||
//
|
||||
// The GPIO port A pin numbers for the various SSI signals.
|
||||
//
|
||||
//*****************************************************************************
|
||||
#define SSI_CS GPIO_PIN_3
|
||||
#define PDC_CS GPIO_PIN_3
|
||||
#define SSI_CLK GPIO_PIN_2
|
||||
#define SSI_TX GPIO_PIN_5
|
||||
#define SSI_RX GPIO_PIN_4
|
||||
|
||||
//*****************************************************************************
|
||||
//
|
||||
// Function Prototypes
|
||||
//
|
||||
//*****************************************************************************
|
||||
extern void PDCInit(void);
|
||||
extern unsigned char PDCRead(unsigned char ucAddr);
|
||||
extern void PDCWrite(unsigned char ucAddr, unsigned char ucData);
|
||||
extern unsigned char PDCDIPRead(void);
|
||||
extern void PDCLEDWrite(unsigned char ucLED);
|
||||
extern unsigned char PDCLEDRead(void);
|
||||
extern void PDCLCDInit(void);
|
||||
extern void PDCLCDBacklightOn(void);
|
||||
extern void PDCLCDBacklightOff(void);
|
||||
extern void PDCLCDClear(void);
|
||||
extern void PDCLCDCreateChar(unsigned char ucChar, unsigned char *pucData);
|
||||
extern void PDCLCDSetPos(unsigned char ucX, unsigned char ucY);
|
||||
extern void PDCLCDWrite(const char *pcStr, unsigned long ulCount);
|
||||
extern unsigned char PDCGPIODirRead(unsigned char ucIdx);
|
||||
extern void PDCGPIODirWrite(unsigned char ucIdx, unsigned char ucValue);
|
||||
extern unsigned char PDCGPIORead(unsigned char ucIdx);
|
||||
extern void PDCGPIOWrite(unsigned char ucIdx, unsigned char ucValue);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif // __PDC_H__
|
||||
164
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/init/Startup.s
Normal file
164
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/init/Startup.s
Normal file
|
|
@ -0,0 +1,164 @@
|
|||
;/*****************************************************************************/
|
||||
;/* STARTUP.S: Startup file for Luminary Micro LM3Sxxx */
|
||||
;/*****************************************************************************/
|
||||
;/* <<< Use Configuration Wizard in Context Menu >>> */
|
||||
;/*****************************************************************************/
|
||||
;/* This file is part of the uVision/ARM development tools. */
|
||||
;/* Copyright (c) 2005-2006 Keil Software. All rights reserved. */
|
||||
;/* This software may only be used under the terms of a valid, current, */
|
||||
;/* end user licence from KEIL for a compatible version of KEIL software */
|
||||
;/* development tools. Nothing else gives you the right to use this software. */
|
||||
;/*****************************************************************************/
|
||||
|
||||
|
||||
;/*
|
||||
; * The STARTUP.S code is executed after CPU Reset.
|
||||
; */
|
||||
|
||||
|
||||
;// <h> Stack Configuration
|
||||
;// <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
|
||||
;// </h>
|
||||
|
||||
Stack_Size EQU 51
|
||||
|
||||
AREA STACK, NOINIT, READWRITE, ALIGN=3
|
||||
Stack_Mem SPACE Stack_Size
|
||||
|
||||
|
||||
;// <h> Heap Configuration
|
||||
;// <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
|
||||
;// </h>
|
||||
|
||||
Heap_Size EQU 0x00000000
|
||||
|
||||
AREA HEAP, NOINIT, READWRITE, ALIGN=3
|
||||
Heap_Mem SPACE Heap_Size
|
||||
|
||||
|
||||
; System Control Register Addresses
|
||||
SYSCTL_BASE EQU 0x400FE000 ; System Control Base Address
|
||||
PBORCTL_OFS EQU 0x0030 ; Power-On & Brown-Out Reset Control
|
||||
LDOPC_OFS EQU 0x0034 ; LDO Power
|
||||
SRCR0_OFS EQU 0x0040 ; Software Reset Control 0
|
||||
SRCR1_OFS EQU 0x0044 ; Software Reset Control 1
|
||||
SRCR2_OFS EQU 0x0048 ; Software Reset Control 2
|
||||
RCC_OFS EQU 0x0060 ; Run-Mode Clock Control
|
||||
RCGC0_OFS EQU 0x0100 ; Run-Mode Clock Gating Control 0
|
||||
RCGC1_OFS EQU 0x0104 ; Run-Mode Clock Gating Control 1
|
||||
RCGC2_OFS EQU 0x0108 ; Run-Mode Clock Gating Control 2
|
||||
SCGC0_OFS EQU 0x0110 ; Sleep-Mode Clock Gating Control 0
|
||||
SCGC1_OFS EQU 0x0114 ; Sleep-Mode Clock Gating Control 1
|
||||
SCGC2_OFS EQU 0x0118 ; Sleep-Mode Clock Gating Control 2
|
||||
DCGC0_OFS EQU 0x0120 ; Deep-Sleep-Mode Clock Gating Control 0
|
||||
DCGC1_OFS EQU 0x0124 ; Deep-Sleep-Mode Clock Gating Control 1
|
||||
DCGC2_OFS EQU 0x0128 ; Deep-Sleep-Mode Clock Gating Control 2
|
||||
|
||||
|
||||
PRESERVE8
|
||||
|
||||
|
||||
; Area Definition and Entry Point
|
||||
; Startup Code must be linked first at Address 0.
|
||||
|
||||
AREA RESET, CODE, READONLY
|
||||
THUMB
|
||||
|
||||
IMPORT xPortPendSVHandler
|
||||
IMPORT xPortSysTickHandler
|
||||
IMPORT vUART_ISR
|
||||
IMPORT vPortSVCHandler
|
||||
|
||||
; Vector Table
|
||||
EXPORT __Vectors
|
||||
__Vectors DCD Stack_Mem + Stack_Size ; Top of Stack
|
||||
DCD Reset_Handler ; Reset Handler
|
||||
DCD NmiSR ; NMI Handler
|
||||
DCD DefaultISR ; Hard Fault Handler
|
||||
DCD DefaultISR ; MPU Fault Handler
|
||||
DCD DefaultISR ; Bus Fault Handler
|
||||
DCD DefaultISR ; Usage Fault Handler
|
||||
DCD 0 ; Reserved
|
||||
DCD 0 ; Reserved
|
||||
DCD 0 ; Reserved
|
||||
DCD 0 ; Reserved
|
||||
DCD vPortSVCHandler ; SVCall Handler
|
||||
DCD DefaultISR ; Debug Monitor Handler
|
||||
DCD 0 ; Reserved
|
||||
DCD xPortPendSVHandler ; PendSV Handler
|
||||
DCD xPortSysTickHandler ; SysTick Handler
|
||||
DCD DefaultISR ; GPIO Port A Handler
|
||||
DCD DefaultISR ; GPIO Port B Handler
|
||||
DCD DefaultISR ; GPIO Port C Handler
|
||||
DCD DefaultISR ; GPIO Port D Handler
|
||||
DCD DefaultISR ; GPIO Port E Handler
|
||||
DCD vUART_ISR ; UART0 Rx/Tx Handler
|
||||
DCD DefaultISR ; UART1 Rx/Tx Handler
|
||||
DCD DefaultISR ; SSI Rx/Tx Handler
|
||||
DCD DefaultISR ; I2C Master/Slave Handler
|
||||
DCD DefaultISR ; PWM Fault Handler
|
||||
DCD DefaultISR ; PWM Generator 0 Handler
|
||||
DCD DefaultISR ; PWM Generator 1 Handler
|
||||
DCD DefaultISR ; PWM Generator 2 Handler
|
||||
DCD DefaultISR ; Quadrature Encoder Handler
|
||||
DCD DefaultISR ; ADC Sequence 0 Handler
|
||||
DCD DefaultISR ; ADC Sequence 1 Handler
|
||||
DCD DefaultISR ; ADC Sequence 2 Handler
|
||||
DCD DefaultISR ; ADC Sequence 3 Handler
|
||||
DCD DefaultISR ; Watchdog Timer Handler
|
||||
DCD DefaultISR ; Timer 0 Subtimer A Handler
|
||||
DCD DefaultISR ; Timer 0 Subtimer B Handler
|
||||
DCD DefaultISR ; Timer 1 Subtimer A Handler
|
||||
DCD DefaultISR ; Timer 1 Subtimer B Handler
|
||||
DCD DefaultISR ; Timer 2 Subtimer A Handler
|
||||
DCD DefaultISR ; Timer 2 Subtimer B Handler
|
||||
DCD DefaultISR ; Analog Comparator 0 Handler
|
||||
DCD DefaultISR ; Analog Comparator 1 Handler
|
||||
DCD DefaultISR ; Analog Comparator 2 Handler
|
||||
DCD DefaultISR ; System Control Handler
|
||||
DCD DefaultISR ; Flash Control Handler
|
||||
|
||||
; Dummy Handlers are implemented as infinite loops which can be modified.
|
||||
|
||||
NmiSR B NmiSR
|
||||
FaultISR B FaultISR
|
||||
EXPORT FaultISR
|
||||
DefaultISR B DefaultISR
|
||||
|
||||
|
||||
; Reset Handler
|
||||
|
||||
EXPORT Reset_Handler
|
||||
Reset_Handler
|
||||
|
||||
; Enable Clock Gating for Peripherals
|
||||
; LDR R0, =SYSCTL_BASE ; System Control Base Address
|
||||
; MVN R1, #0 ; Value 0xFFFFFFFF
|
||||
; STR R1, [R0,#RCGC0_OFS] ; Run-Mode Clock Gating Ctrl 0
|
||||
; STR R1, [R0,#RCGC1_OFS] ; Run-Mode Clock Gating Ctrl 1
|
||||
; STR R1, [R0,#RCGC2_OFS] ; Run-Mode Clock Gating Ctrl 2
|
||||
|
||||
; Enter the C code
|
||||
|
||||
IMPORT __main
|
||||
LDR R0, =__main
|
||||
BX R0
|
||||
|
||||
|
||||
; User Initial Stack & Heap
|
||||
AREA |.text|, CODE, READONLY
|
||||
|
||||
IMPORT __use_two_region_memory
|
||||
EXPORT __user_initial_stackheap
|
||||
__user_initial_stackheap
|
||||
|
||||
LDR R0, = Heap_Mem
|
||||
LDR R1, =(Stack_Mem + Stack_Size)
|
||||
LDR R2, = (Heap_Mem + Heap_Size)
|
||||
LDR R3, = Stack_Mem
|
||||
BX LR
|
||||
|
||||
ALIGN
|
||||
|
||||
|
||||
END
|
||||
630
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/main.c
Normal file
630
FreeRTOS/Demo/CORTEX_LM3S102_KEIL/main.c
Normal file
|
|
@ -0,0 +1,630 @@
|
|||
/*
|
||||
FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
|
||||
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
* Complete, revised, and edited pdf reference manuals are also *
|
||||
* available. *
|
||||
* *
|
||||
* Purchasing FreeRTOS documentation will not only help you, by *
|
||||
* ensuring you get running as quickly as possible and with an *
|
||||
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
* the FreeRTOS project to continue with its mission of providing *
|
||||
* professional grade, cross platform, de facto standard solutions *
|
||||
* for microcontrollers - completely free of charge! *
|
||||
* *
|
||||
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
* *
|
||||
* Thank you for using FreeRTOS, and thank you for your support! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
>>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
distribute a combined work that includes FreeRTOS without being obliged to
|
||||
provide the source code for proprietary components outside of the FreeRTOS
|
||||
kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
more details. You should have received a copy of the GNU General Public
|
||||
License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
by writing to Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* Having a problem? Start by reading the FAQ "My application does *
|
||||
* not run, what could be wrong? *
|
||||
* *
|
||||
* http://www.FreeRTOS.org/FAQHelp.html *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, training, latest information,
|
||||
license and contact details.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool.
|
||||
|
||||
Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell
|
||||
the code with commercial support, indemnification, and middleware, under
|
||||
the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also
|
||||
provide a safety engineered and independently SIL3 certified version under
|
||||
the SafeRTOS brand: http://www.SafeRTOS.com.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This demo application creates six co-routines and two tasks (three including
|
||||
* the idle task). The co-routines execute as part of the idle task hook.
|
||||
*
|
||||
* Five of the created co-routines are the standard 'co-routine flash'
|
||||
* co-routines contained within the Demo/Common/Minimal/crflash.c file and
|
||||
* documented on the FreeRTOS.org WEB site.
|
||||
*
|
||||
* The 'LCD Task' rotates a string on the LCD, delaying between each character
|
||||
* as necessitated by the slow interface, and delaying between each string just
|
||||
* long enough to enable the text to be read.
|
||||
*
|
||||
* The sixth co-routine and final task control the transmission and reception
|
||||
* of a string to UART 0. The co-routine periodically sends the first
|
||||
* character of the string to the UART, with the UART's TxEnd interrupt being
|
||||
* used to transmit the remaining characters. The UART's RxEnd interrupt
|
||||
* receives the characters and places them on a queue to be processed by the
|
||||
* 'COMs Rx' task. An error is latched should an unexpected character be
|
||||
* received, or any character be received out of sequence.
|
||||
*
|
||||
* A loopback connector is required to ensure that each character transmitted
|
||||
* on the UART is also received on the same UART. For test purposes the UART
|
||||
* FIFO's are not utalised in order to maximise the interrupt overhead. Also
|
||||
* a pseudo random interval is used between the start of each transmission in
|
||||
* order that the resultant interrupts are more randomly distributed and
|
||||
* therefore more likely to highlight any problems.
|
||||
*
|
||||
* The flash co-routines control LED's zero to four. LED five is toggled each
|
||||
* time the string is transmitted on the UART. LED six is toggled each time
|
||||
* the string is CORRECTLY received on the UART. LED seven is latched on should
|
||||
* an error be detected in any task or co-routine.
|
||||
*
|
||||
* In addition the idle task makes repetative calls to
|
||||
* prvSetAndCheckRegisters(). This simply loads the general purpose registers
|
||||
* with a known value, then checks each register to ensure the held value is
|
||||
* still correct. As a low priority task this checking routine is likely to
|
||||
* get repeatedly swapped in and out. A register being found to contain an
|
||||
* incorrect value is therefore indicative of an error in the task switching
|
||||
* mechansim.
|
||||
*
|
||||
*/
|
||||
|
||||
/* Scheduler include files. */
|
||||
#include "FreeRTOS.h"
|
||||
#include "task.h"
|
||||
#include "queue.h"
|
||||
#include "croutine.h"
|
||||
|
||||
/* Demo application include files. */
|
||||
#include "partest.h"
|
||||
#include "crflash.h"
|
||||
|
||||
/* Library include files. */
|
||||
#include "LM3Sxxx.h"
|
||||
#include "pdc.h"
|
||||
|
||||
/* The time to delay between writing each character to the LCD. */
|
||||
#define mainCHAR_WRITE_DELAY ( 2 / portTICK_RATE_MS )
|
||||
|
||||
/* The time to delay between writing each string to the LCD. */
|
||||
#define mainSTRING_WRITE_DELAY ( 400 / portTICK_RATE_MS )
|
||||
|
||||
/* The number of flash co-routines to create. */
|
||||
#define mainNUM_FLASH_CO_ROUTINES ( 5 )
|
||||
|
||||
/* The length of the queue used to pass received characters to the Comms Rx
|
||||
task. */
|
||||
#define mainRX_QUEUE_LEN ( 5 )
|
||||
|
||||
/* The priority of the co-routine used to initiate the transmission of the
|
||||
string on UART 0. */
|
||||
#define mainTX_CO_ROUTINE_PRIORITY ( 1 )
|
||||
|
||||
/* Only one co-routine is created so its index is not important. */
|
||||
#define mainTX_CO_ROUTINE_INDEX ( 0 )
|
||||
|
||||
/* The time between transmissions of the string on UART 0. This is pseudo
|
||||
random in order to generate a bit or randomness to when the interrupts occur.*/
|
||||
#define mainMIN_TX_DELAY ( 40 / portTICK_RATE_MS )
|
||||
#define mainMAX_TX_DELAY ( ( portTickType ) 0x7f )
|
||||
#define mainOFFSET_TIME ( ( portTickType ) 3 )
|
||||
|
||||
/* The time the Comms Rx task should wait to receive a character. This should
|
||||
be slightly longer than the time between transmissions. If we do not receive
|
||||
a character after this time then there must be an error in the transmission or
|
||||
the timing of the transmission. */
|
||||
#define mainCOMMS_RX_DELAY ( mainMAX_TX_DELAY + 20 )
|
||||
|
||||
/* The task priorites. */
|
||||
#define mainLCD_TASK_PRIORITY ( tskIDLE_PRIORITY )
|
||||
#define mainCOMMS_RX_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
|
||||
|
||||
/* The LED's toggled by the various tasks. */
|
||||
#define mainCOMMS_FAIL_LED ( 7 )
|
||||
#define mainCOMMS_RX_LED ( 6 )
|
||||
#define mainCOMMS_TX_LED ( 5 )
|
||||
|
||||
/* The baud rate used by the UART comms tasks/co-routine. */
|
||||
#define mainBAUD_RATE ( 57600 )
|
||||
|
||||
/* FIFO setting for the UART. The FIFO is not used to create a better test. */
|
||||
#define mainFIFO_SET ( 0x10 )
|
||||
|
||||
/* The string that is transmitted on the UART contains sequentially the
|
||||
characters from mainFIRST_TX_CHAR to mainLAST_TX_CHAR. */
|
||||
#define mainFIRST_TX_CHAR '0'
|
||||
#define mainLAST_TX_CHAR 'z'
|
||||
|
||||
/* Just used to walk through the program memory in order that some random data
|
||||
can be generated. */
|
||||
#define mainTOTAL_PROGRAM_MEMORY ( ( unsigned long * ) ( 8 * 1024 ) )
|
||||
#define mainFIRST_PROGRAM_BYTES ( ( unsigned long * ) 4 )
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
* The task that rotates text on the LCD.
|
||||
*/
|
||||
static void vLCDTask( void * pvParameters );
|
||||
|
||||
/*
|
||||
* The task that receives the characters from UART 0.
|
||||
*/
|
||||
static void vCommsRxTask( void * pvParameters );
|
||||
|
||||
/*
|
||||
* The co-routine that periodically initiates the transmission of the string on
|
||||
* the UART.
|
||||
*/
|
||||
static void vSerialTxCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex );
|
||||
|
||||
/*
|
||||
* Writes a string the the LCD.
|
||||
*/
|
||||
static void prvWriteString( const char *pcString );
|
||||
|
||||
/*
|
||||
* Initialisation routine for the UART.
|
||||
*/
|
||||
static void vSerialInit( void );
|
||||
|
||||
/*
|
||||
* Thread safe write to the PDC.
|
||||
*/
|
||||
static void prvPDCWrite( char cAddress, char cData );
|
||||
|
||||
/*
|
||||
* Function to simply set a known value into the general purpose registers
|
||||
* then read them back to ensure they remain set correctly. An incorrect value
|
||||
* being indicative of an error in the task switching mechanism.
|
||||
*/
|
||||
void prvSetAndCheckRegisters( void );
|
||||
|
||||
/*
|
||||
* Latch the LED that indicates that an error has occurred.
|
||||
*/
|
||||
void vSetErrorLED( void );
|
||||
|
||||
/*
|
||||
* Sets up the PLL and ports used by the demo.
|
||||
*/
|
||||
static void prvSetupHardware( void );
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Error flag set to pdFAIL if an error is encountered in the tasks/co-routines
|
||||
defined within this file. */
|
||||
unsigned portBASE_TYPE uxErrorStatus = pdPASS;
|
||||
|
||||
/* The next character to transmit. */
|
||||
static char cNextChar;
|
||||
|
||||
/* The queue used to transmit characters from the interrupt to the Comms Rx
|
||||
task. */
|
||||
static xQueueHandle xCommsQueue;
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
int main( void )
|
||||
{
|
||||
/* Create the queue used to communicate between the UART ISR and the Comms
|
||||
Rx task. */
|
||||
xCommsQueue = xQueueCreate( mainRX_QUEUE_LEN, sizeof( char ) );
|
||||
|
||||
/* Setup the ports used by the demo and the clock. */
|
||||
prvSetupHardware();
|
||||
|
||||
/* Create the co-routines that flash the LED's. */
|
||||
vStartFlashCoRoutines( mainNUM_FLASH_CO_ROUTINES );
|
||||
|
||||
/* Create the co-routine that initiates the transmission of characters
|
||||
on the UART. */
|
||||
xCoRoutineCreate( vSerialTxCoRoutine, mainTX_CO_ROUTINE_PRIORITY, mainTX_CO_ROUTINE_INDEX );
|
||||
|
||||
/* Create the LCD and Comms Rx tasks. */
|
||||
xTaskCreate( vLCDTask, "LCD", configMINIMAL_STACK_SIZE, NULL, mainLCD_TASK_PRIORITY, NULL );
|
||||
xTaskCreate( vCommsRxTask, "CMS", configMINIMAL_STACK_SIZE, NULL, mainCOMMS_RX_TASK_PRIORITY, NULL );
|
||||
|
||||
/* Start the scheduler running the tasks and co-routines just created. */
|
||||
vTaskStartScheduler();
|
||||
|
||||
/* Should not get here unless we did not have enough memory to start the
|
||||
scheduler. */
|
||||
for( ;; );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvSetupHardware( void )
|
||||
{
|
||||
/* Setup the PLL. */
|
||||
SysCtlClockSet( SYSCTL_SYSDIV_10 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_6MHZ );
|
||||
|
||||
/* Initialise the hardware used to talk to the LCD, LED's and UART. */
|
||||
PDCInit();
|
||||
vParTestInitialise();
|
||||
vSerialInit();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vApplicationIdleHook( void )
|
||||
{
|
||||
/* The co-routines are executed in the idle task using the idle task
|
||||
hook. */
|
||||
for( ;; )
|
||||
{
|
||||
/* Schedule the co-routines. */
|
||||
vCoRoutineSchedule();
|
||||
|
||||
/* Run the register check function between each co-routine. */
|
||||
prvSetAndCheckRegisters();
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvWriteString( const char *pcString )
|
||||
{
|
||||
/* Write pcString to the LED, pausing between each character. */
|
||||
prvPDCWrite(PDC_LCD_CSR, LCD_CLEAR);
|
||||
while( *pcString )
|
||||
{
|
||||
vTaskDelay( mainCHAR_WRITE_DELAY );
|
||||
prvPDCWrite( PDC_LCD_RAM, *pcString );
|
||||
pcString++;
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vLCDTask( void * pvParameters )
|
||||
{
|
||||
unsigned portBASE_TYPE uxIndex;
|
||||
const unsigned char ucCFGData[] = {
|
||||
0x30, /* Set data bus to 8-bits. */
|
||||
0x30,
|
||||
0x30,
|
||||
0x3C, /* Number of lines/font. */
|
||||
0x08, /* Display off. */
|
||||
0x01, /* Display clear. */
|
||||
0x06, /* Entry mode [cursor dir][shift]. */
|
||||
0x0C /* Display on [display on][curson on][blinking on]. */
|
||||
};
|
||||
|
||||
/* The strings that are written to the LCD. */
|
||||
const char *pcStringsToDisplay[] = {
|
||||
"Stellaris",
|
||||
"Demo",
|
||||
"One",
|
||||
"www.FreeRTOS.org",
|
||||
""
|
||||
};
|
||||
|
||||
/* Configure the LCD. */
|
||||
uxIndex = 0;
|
||||
while( uxIndex < sizeof( ucCFGData ) )
|
||||
{
|
||||
prvPDCWrite( PDC_LCD_CSR, ucCFGData[ uxIndex ] );
|
||||
uxIndex++;
|
||||
vTaskDelay( mainCHAR_WRITE_DELAY );
|
||||
}
|
||||
|
||||
/* Turn the LCD Backlight on. */
|
||||
prvPDCWrite( PDC_CSR, 0x01 );
|
||||
|
||||
/* Clear display. */
|
||||
vTaskDelay( mainCHAR_WRITE_DELAY );
|
||||
prvPDCWrite( PDC_LCD_CSR, LCD_CLEAR );
|
||||
|
||||
uxIndex = 0;
|
||||
for( ;; )
|
||||
{
|
||||
/* Display the string on the LCD. */
|
||||
prvWriteString( pcStringsToDisplay[ uxIndex ] );
|
||||
|
||||
/* Move on to the next string - wrapping if necessary. */
|
||||
uxIndex++;
|
||||
if( *( pcStringsToDisplay[ uxIndex ] ) == 0x00 )
|
||||
{
|
||||
uxIndex = 0;
|
||||
/* Longer pause on the last string to be sent. */
|
||||
vTaskDelay( mainSTRING_WRITE_DELAY * 2 );
|
||||
}
|
||||
|
||||
/* Wait until it is time to move onto the next string. */
|
||||
vTaskDelay( mainSTRING_WRITE_DELAY );
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vCommsRxTask( void * pvParameters )
|
||||
{
|
||||
static char cRxedChar, cExpectedChar;
|
||||
|
||||
/* Set the char we expect to receive to the start of the string. */
|
||||
cExpectedChar = mainFIRST_TX_CHAR;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
/* Wait for a character to be received. */
|
||||
xQueueReceive( xCommsQueue, ( void * ) &cRxedChar, mainCOMMS_RX_DELAY );
|
||||
|
||||
/* Was the character recived (if any) the expected character. */
|
||||
if( cRxedChar != cExpectedChar )
|
||||
{
|
||||
/* Got an unexpected character. This can sometimes occur when
|
||||
reseting the system using the debugger leaving characters already
|
||||
in the UART regsters. */
|
||||
uxErrorStatus = pdFAIL;
|
||||
|
||||
/* Resync by waiting for the end of the current string. */
|
||||
while( cRxedChar != mainLAST_TX_CHAR )
|
||||
{
|
||||
while( !xQueueReceive( xCommsQueue, ( void * ) &cRxedChar, portMAX_DELAY ) );
|
||||
}
|
||||
|
||||
/* The next expected character is the start of the string again. */
|
||||
cExpectedChar = mainFIRST_TX_CHAR;
|
||||
}
|
||||
else
|
||||
{
|
||||
if( cExpectedChar == mainLAST_TX_CHAR )
|
||||
{
|
||||
/* We have reached the end of the string - we now expect to
|
||||
receive the first character in the string again. The LED is
|
||||
toggled to indicate that the entire string was received without
|
||||
error. */
|
||||
vParTestToggleLED( mainCOMMS_RX_LED );
|
||||
cExpectedChar = mainFIRST_TX_CHAR;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* We got the expected character, we now expect to receive the
|
||||
next character in the string. */
|
||||
cExpectedChar++;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vSerialTxCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex )
|
||||
{
|
||||
portTickType xDelayPeriod;
|
||||
static unsigned long *pulRandomBytes = mainFIRST_PROGRAM_BYTES;
|
||||
|
||||
/* Co-routine MUST start with a call to crSTART. */
|
||||
crSTART( xHandle );
|
||||
|
||||
for(;;)
|
||||
{
|
||||
/* Was the previously transmitted string received correctly? */
|
||||
if( uxErrorStatus != pdPASS )
|
||||
{
|
||||
/* An error was encountered so set the error LED. */
|
||||
vSetErrorLED();
|
||||
}
|
||||
|
||||
/* The next character to Tx is the first in the string. */
|
||||
cNextChar = mainFIRST_TX_CHAR;
|
||||
|
||||
UARTIntDisable( UART0_BASE, UART_INT_TX );
|
||||
{
|
||||
/* Send the first character. */
|
||||
if( !( HWREG( UART0_BASE + UART_O_FR ) & UART_FR_TXFF ) )
|
||||
{
|
||||
HWREG( UART0_BASE + UART_O_DR ) = cNextChar;
|
||||
}
|
||||
|
||||
/* Move the variable to the char to Tx on so the ISR transmits
|
||||
the next character in the string once this one has completed. */
|
||||
cNextChar++;
|
||||
}
|
||||
UARTIntEnable(UART0_BASE, UART_INT_TX);
|
||||
|
||||
/* Toggle the LED to show a new string is being transmitted. */
|
||||
vParTestToggleLED( mainCOMMS_TX_LED );
|
||||
|
||||
/* Delay before we start the string off again. A pseudo-random delay
|
||||
is used as this will provide a better test. */
|
||||
xDelayPeriod = xTaskGetTickCount() + ( *pulRandomBytes );
|
||||
|
||||
pulRandomBytes++;
|
||||
if( pulRandomBytes > mainTOTAL_PROGRAM_MEMORY )
|
||||
{
|
||||
pulRandomBytes = mainFIRST_PROGRAM_BYTES;
|
||||
}
|
||||
|
||||
/* Make sure we don't wait too long... */
|
||||
xDelayPeriod &= mainMAX_TX_DELAY;
|
||||
|
||||
/* ...but we do want to wait. */
|
||||
if( xDelayPeriod < mainMIN_TX_DELAY )
|
||||
{
|
||||
xDelayPeriod = mainMIN_TX_DELAY;
|
||||
}
|
||||
|
||||
/* Block for the random(ish) time. */
|
||||
crDELAY( xHandle, xDelayPeriod );
|
||||
}
|
||||
|
||||
/* Co-routine MUST end with a call to crEND. */
|
||||
crEND();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void vSerialInit( void )
|
||||
{
|
||||
/* Enable the UART. GPIOA has already been initialised. */
|
||||
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
|
||||
|
||||
/* Set GPIO A0 and A1 as peripheral function. They are used to output the
|
||||
UART signals. */
|
||||
GPIODirModeSet( GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1, GPIO_DIR_MODE_HW );
|
||||
|
||||
/* Configure the UART for 8-N-1 operation. */
|
||||
UARTConfigSet( UART0_BASE, mainBAUD_RATE, UART_CONFIG_WLEN_8 | UART_CONFIG_PAR_NONE | UART_CONFIG_STOP_ONE );
|
||||
|
||||
/* We dont want to use the fifo. This is for test purposes to generate
|
||||
as many interrupts as possible. */
|
||||
HWREG( UART0_BASE + UART_O_LCR_H ) &= ~mainFIFO_SET;
|
||||
|
||||
/* Enable both Rx and Tx interrupts. */
|
||||
HWREG( UART0_BASE + UART_O_IM ) |= ( UART_INT_TX | UART_INT_RX );
|
||||
IntEnable( INT_UART0 );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vUART_ISR(void)
|
||||
{
|
||||
unsigned long ulStatus;
|
||||
char cRxedChar;
|
||||
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
|
||||
|
||||
/* What caused the interrupt. */
|
||||
ulStatus = UARTIntStatus( UART0_BASE, pdTRUE );
|
||||
|
||||
/* Clear the interrupt. */
|
||||
UARTIntClear( UART0_BASE, ulStatus );
|
||||
|
||||
/* Was an Rx interrpt pending? */
|
||||
if( ulStatus & UART_INT_RX )
|
||||
{
|
||||
if( ( HWREG(UART0_BASE + UART_O_FR ) & UART_FR_RXFF ) )
|
||||
{
|
||||
/* Get the char from the buffer and post it onto the queue of
|
||||
Rxed chars. Posting the character should wake the task that is
|
||||
blocked on the queue waiting for characters. */
|
||||
cRxedChar = ( char ) HWREG( UART0_BASE + UART_O_DR );
|
||||
xQueueSendFromISR( xCommsQueue, &cRxedChar, &xHigherPriorityTaskWoken );
|
||||
}
|
||||
}
|
||||
|
||||
/* Was a Tx interrupt pending? */
|
||||
if( ulStatus & UART_INT_TX )
|
||||
{
|
||||
/* Send the next character in the string. We are not using the FIFO. */
|
||||
if( cNextChar <= mainLAST_TX_CHAR )
|
||||
{
|
||||
if( !( HWREG( UART0_BASE + UART_O_FR ) & UART_FR_TXFF ) )
|
||||
{
|
||||
HWREG( UART0_BASE + UART_O_DR ) = cNextChar;
|
||||
}
|
||||
cNextChar++;
|
||||
}
|
||||
}
|
||||
|
||||
/* If a task was woken by the character being received then we force
|
||||
a context switch to occur in case the task is of higher priority than
|
||||
the currently executing task (i.e. the task that this interrupt
|
||||
interrupted.) */
|
||||
portEND_SWITCHING_ISR( xHigherPriorityTaskWoken );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvPDCWrite( char cAddress, char cData )
|
||||
{
|
||||
vTaskSuspendAll();
|
||||
{
|
||||
PDCWrite( cAddress, cData );
|
||||
}
|
||||
xTaskResumeAll();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vSetErrorLED( void )
|
||||
{
|
||||
vParTestSetLED( mainCOMMS_FAIL_LED, pdTRUE );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
__asm void prvSetAndCheckRegisters( void )
|
||||
{
|
||||
extern vSetErrorLED
|
||||
|
||||
/* Fill the general purpose registers with known values. */
|
||||
mov r11, #10
|
||||
add r0, r11, #1
|
||||
add r1, r11, #2
|
||||
add r2, r11, #3
|
||||
add r3, r11, #4
|
||||
add r4, r11, #5
|
||||
add r5, r11, #6
|
||||
add r6, r11, #7
|
||||
add r7, r11, #8
|
||||
add r8, r11, #9
|
||||
add r9, r11, #10
|
||||
add r10, r11, #11
|
||||
add r12, r11, #12
|
||||
|
||||
/* Check the values are as expected. */
|
||||
cmp r11, #10
|
||||
bne set_error_led
|
||||
cmp r0, #11
|
||||
bne set_error_led
|
||||
cmp r1, #12
|
||||
bne set_error_led
|
||||
cmp r2, #13
|
||||
bne set_error_led
|
||||
cmp r3, #14
|
||||
bne set_error_led
|
||||
cmp r4, #15
|
||||
bne set_error_led
|
||||
cmp r5, #16
|
||||
bne set_error_led
|
||||
cmp r6, #17
|
||||
bne set_error_led
|
||||
cmp r7, #18
|
||||
bne set_error_led
|
||||
cmp r8, #19
|
||||
bne set_error_led
|
||||
cmp r9, #20
|
||||
bne set_error_led
|
||||
cmp r10, #21
|
||||
bne set_error_led
|
||||
cmp r12, #22
|
||||
bne set_error_led
|
||||
bx lr
|
||||
|
||||
set_error_led;
|
||||
push {r14}
|
||||
ldr r1, =vSetErrorLED
|
||||
blx r1
|
||||
pop {r14}
|
||||
bx lr;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
Loading…
Add table
Add a link
Reference in a new issue