First version under SVN is V4.0.1

This commit is contained in:
Richard Barry 2006-05-02 09:39:15 +00:00
parent 243393860c
commit b6df57c7e3
918 changed files with 269038 additions and 0 deletions

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/*
FreeRTOS V4.0.1 - Copyright (C) 2003-2006 Richard Barry.
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 as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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
along with FreeRTOS; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
See http://www.FreeRTOS.org for documentation, latest information, license
and contact details. Please ensure to read the configuration and relevant
port sections of the online documentation.
***************************************************************************
*/
#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.
*----------------------------------------------------------*/
#define configUSE_PREEMPTION 0
#define configUSE_IDLE_HOOK 1
#define configUSE_TICK_HOOK 0
#define configCPU_CLOCK_HZ ( ( unsigned portLONG ) 20000000 )
#define configTICK_RATE_HZ ( ( portTickType ) 1000 )
#define configMINIMAL_STACK_SIZE ( ( unsigned portSHORT ) 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 ( 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 0
#endif /* FREERTOS_CONFIG_H */

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/*
FreeRTOS V4.0.1 - Copyright (C) 2003-2006 Richard Barry.
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 as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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
along with FreeRTOS; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
See http://www.FreeRTOS.org for documentation, latest information, license
and contact details. Please ensure to read the configuration and relevant
port sections of the online documentation.
***************************************************************************
*/
/*-----------------------------------------------------------
* Simple parallel port IO routines.
*-----------------------------------------------------------*/
/*
*/
/* Kernel include files. */
#include "FreeRTOS.h"
#include "Task.h"
#include "partest.h"
/* Hardware specific include files. */
#include "DriverLib.h"
static const unsigned portLONG ulLEDs[] =
{
GPIO_PIN_6, GPIO_PIN_1, GPIO_PIN_0
};
#define partstLED_PINS ( GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_6 )
#define partstMAX_OUTPUT_LED ( ( unsigned portCHAR ) 3 )
/*-----------------------------------------------------------*/
void vParTestInitialise( void )
{
portBASE_TYPE xLED;
/* The LED's are on port B. */
GPIODirModeSet( GPIO_PORTB_BASE, partstLED_PINS, GPIO_DIR_MODE_OUT );
for( xLED = 0; xLED < partstMAX_OUTPUT_LED; xLED++ )
{
vParTestSetLED( xLED, pdFALSE );
}
}
/*-----------------------------------------------------------*/
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
vTaskSuspendAll();
{
if( uxLED < partstMAX_OUTPUT_LED )
{
if( xValue == pdFALSE )
{
GPIOPinWrite( GPIO_PORTB_BASE, ulLEDs[ uxLED ], ulLEDs[ uxLED ] );
}
else
{
GPIOPinWrite( GPIO_PORTB_BASE, ulLEDs[ uxLED ], ~ulLEDs[ uxLED ] );
}
}
}
xTaskResumeAll();
}
/*-----------------------------------------------------------*/
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
portBASE_TYPE xCurrentValue;
vTaskSuspendAll();
{
if( uxLED < partstMAX_OUTPUT_LED )
{
xCurrentValue = GPIOPinRead( GPIO_PORTB_BASE, ulLEDs[ uxLED ] );
if( xCurrentValue )
{
GPIOPinWrite( GPIO_PORTB_BASE, ulLEDs[ uxLED ], ~ulLEDs[ uxLED ] );
}
else
{
GPIOPinWrite( GPIO_PORTB_BASE, ulLEDs[ uxLED ], ulLEDs[ uxLED ] );
}
}
}
xTaskResumeAll();
}

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/*
FreeRTOS V4.0.1 - Copyright (C) 2003-2006 Richard Barry.
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 as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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
along with FreeRTOS; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
See http://www.FreeRTOS.org for documentation, latest information, license
and contact details. Please ensure to read the configuration and relevant
port sections of the online documentation.
***************************************************************************
*/
/*
* This is a mini co-routine demo for the Rowley CrossFire LM3S102 development
* board. It makes use of the boards tri-colour LED and analogue input.
*
* Four co-routines are created - an 'I2C' co-routine and three 'flash'
* co-routines.
*
* The I2C co-routine triggers an ADC conversion then blocks on a queue to
* wait for the conversion result - which it receives on the queue directly
* from the I2C interrupt service routine. The conversion result is then
* scalled to a delay period. The I2C interrupt then wakes each of the
* flash co-routines before itself delaying for the calculated period and
* then repeating the whole process.
*
* When woken by the I2C co-routine the flash co-routines each block for
* a given period, illuminate an LED for a fixed period, then go back to
* sleep to wait for the next cycle. The uxIndex parameter of the flash
* co-routines is used to ensure that each flashes a different LED, and that
* the delay periods are such that the LED's get flashed in sequence.
*/
/* Scheduler include files. */
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include "croutine.h"
/* Demo application include files. */
#include "partest.h"
/* Library include files. */
#include "DriverLib.h"
/* States of the I2C master interface. */
#define mainI2C_IDLE 0
#define mainI2C_READ_1 1
#define mainI2C_READ_2 2
#define mainI2C_READ_DONE 3
#define mainZERO_LENGTH 0
/* Address of the A2D IC on the CrossFire board. */
#define mainI2CAddress 0x4D
/* The queue used to send data from the I2C ISR to the co-routine should never
contain more than one item as the same co-routine is used to trigger the I2C
activity. */
#define mainQUEUE_LENGTH 1
/* The CrossFire board contains a tri-colour LED. */
#define mainNUM_LEDs 3
/* The I2C co-routine has a higher priority than the flash co-routines. This
is not really necessary as when the I2C co-routine is active the other
co-routines are delaying. */
#define mainI2c_CO_ROUTINE_PRIORITY 1
/* The current state of the I2C master. */
static volatile unsigned portBASE_TYPE uxState = mainI2C_IDLE;
/* The delay period derived from the A2D value. */
static volatile portBASE_TYPE uxDelay = 250;
/* The queue used to communicate between the I2C interrupt and the I2C
co-routine. */
static xQueueHandle xADCQueue;
/* The queue used to synchronise the flash co-routines. */
static xQueueHandle xDelayQueue;
/*
* Sets up the PLL, I2C and GPIO used by the demo.
*/
static void prvSetupHardware( void );
/* The co-routines as described at the top of the file. */
static void vI2CCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex );
static void vFlashCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex );
/*-----------------------------------------------------------*/
int main( void )
{
unsigned portBASE_TYPE uxCoRoutine;
/* Setup all the hardware used by this demo. */
prvSetupHardware();
/* Create the queue used to communicate between the ISR and I2C co-routine.
This can only ever contain one value. */
xADCQueue = xQueueCreate( mainQUEUE_LENGTH, sizeof( portTickType ) );
/* Create the queue used to synchronise the flash co-routines. The queue
is used to trigger three tasks, but is for synchronisation only and does
not pass any data. It therefore has three position each of zero length. */
xDelayQueue = xQueueCreate( mainNUM_LEDs, mainZERO_LENGTH );
/* Create the co-routine that initiates the i2c. */
xCoRoutineCreate( vI2CCoRoutine, mainI2c_CO_ROUTINE_PRIORITY, 0 );
/* Create the flash co-routines. */
for( uxCoRoutine = 0; uxCoRoutine < mainNUM_LEDs; uxCoRoutine++ )
{
xCoRoutineCreate( vFlashCoRoutine, tskIDLE_PRIORITY, uxCoRoutine );
}
/* Start the scheduler. From this point on the co-routines should
execute. */
vTaskStartScheduler();
/* Should not get here unless we did not have enough memory to start the
scheduler. */
for( ;; );
return 0;
}
/*-----------------------------------------------------------*/
static void prvSetupHardware( void )
{
/* Setup the PLL. */
SysCtlClockSet( SYSCTL_SYSDIV_10 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_6MHZ );
/* Enable the I2C used to read the pot. */
SysCtlPeripheralEnable( SYSCTL_PERIPH_I2C );
SysCtlPeripheralEnable( SYSCTL_PERIPH_GPIOB );
GPIOPinTypeI2C( GPIO_PORTB_BASE, GPIO_PIN_2 | GPIO_PIN_3 );
/* Initialize the I2C master. */
I2CMasterInit( I2C_MASTER_BASE, pdFALSE );
/* Enable the I2C master interrupt. */
I2CMasterIntEnable( I2C_MASTER_BASE );
IntEnable( INT_I2C );
/* Initialise the hardware used to talk to the LED's. */
vParTestInitialise();
}
/*-----------------------------------------------------------*/
static void vI2CCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex )
{
portTickType xADCResult;
static portBASE_TYPE xResult = 0, xMilliSecs, xLED;
crSTART( xHandle );
for( ;; )
{
/* Start the I2C off to read the ADC. */
uxState = mainI2C_READ_1;
I2CMasterSlaveAddrSet( I2C_MASTER_BASE, mainI2CAddress, pdTRUE );
I2CMasterControl( I2C_MASTER_BASE, I2C_MASTER_CMD_BURST_RECEIVE_START );
/* Wait to receive the conversion result. */
crQUEUE_RECEIVE( xHandle, xADCQueue, &xADCResult, portMAX_DELAY, &xResult );
/* Scale the result to give a useful range of values for a visual
demo. */
xADCResult >>= 2;
xMilliSecs = xADCResult / portTICK_RATE_MS;
/* The delay is split between the four co-routines so they remain in
synch. */
uxDelay = xMilliSecs / ( mainNUM_LEDs + 1 );
/* Trigger each of the flash co-routines. */
for( xLED = 0; xLED < mainNUM_LEDs; xLED++ )
{
crQUEUE_SEND( xHandle, xDelayQueue, &xLED, 0, &xResult );
}
/* Wait for the full delay time then start again. This delay is long
enough to ensure the flash co-routines have done their thing and gone
back to sleep. */
crDELAY( xHandle, xMilliSecs );
}
crEND();
}
/*-----------------------------------------------------------*/
static void vFlashCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex )
{
portBASE_TYPE xResult, xNothing;
crSTART( xHandle );
for( ;; )
{
/* Wait for start of next round. */
crQUEUE_RECEIVE( xHandle, xDelayQueue, &xNothing, portMAX_DELAY, &xResult );
/* Wait until it is this co-routines turn to flash. */
crDELAY( xHandle, uxDelay * uxIndex );
/* Turn on the LED for a fixed period. */
vParTestSetLED( uxIndex, pdTRUE );
crDELAY( xHandle, uxDelay );
vParTestSetLED( uxIndex, pdFALSE );
/* Go back and wait for the next round. */
}
crEND();
}
/*-----------------------------------------------------------*/
void vI2C_ISR(void)
{
static portTickType xReading;
/* Clear the interrupt. */
I2CMasterIntClear( I2C_MASTER_BASE );
/* Determine what to do based on the current uxState. */
switch (uxState)
{
case mainI2C_IDLE: break;
case mainI2C_READ_1: /* Read ADC result high byte. */
xReading = I2CMasterDataGet( I2C_MASTER_BASE );
xReading <<= 8;
/* Continue the burst read. */
I2CMasterControl( I2C_MASTER_BASE, I2C_MASTER_CMD_BURST_RECEIVE_CONT );
uxState = mainI2C_READ_2;
break;
case mainI2C_READ_2: /* Read ADC result low byte. */
xReading |= I2CMasterDataGet( I2C_MASTER_BASE );
/* Finish the burst read. */
I2CMasterControl( I2C_MASTER_BASE, I2C_MASTER_CMD_BURST_RECEIVE_FINISH );
uxState = mainI2C_READ_DONE;
break;
case mainI2C_READ_DONE: /* Complete. */
I2CMasterDataGet( I2C_MASTER_BASE );
uxState = mainI2C_IDLE;
/* Send the result to the co-routine. */
crQUEUE_SEND_FROM_ISR( xADCQueue, &xReading, pdFALSE );
break;
}
}
/*-----------------------------------------------------------*/
void vApplicationIdleHook( void )
{
for( ;; )
{
vCoRoutineSchedule();
}
}

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/*****************************************************************************
* Copyright (c) 2006 Rowley Associates Limited. *
* *
* This file may be distributed under the terms of the License Agreement *
* provided with this software. *
* *
* THIS FILE IS PROVIDED AS IS WITH NO WARRANTY OF ANY KIND, INCLUDING THE *
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
*****************************************************************************/
.section .vectors, "ax"
.code 16
.align 0
.global _vectors
.extern xPortPendSVHandler
.extern xPortSysTickHandler
.extern vI2C_ISR
.extern faultisr
.macro DEFAULT_ISR_HANDLER name=
.thumb_func
.weak \name
\name:
1: b 1b /* endless loop */
.endm
_vectors:
.word __stack_end__
.word reset_handler
.word NmiISR
.word FaultISR
.word 0 // Populate if using MemManage (MPU)
.word 0 // Populate if using Bus fault
.word 0 // Populate if using Usage fault
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0
.word 0 // Populate if using a debug monitor
.word 0 // Reserved
.word xPortPendSVHandler // Populate if using pendable service request
.word xPortSysTickHandler
// External interrupts start her
.word GPIO_Port_A_ISR
.word GPIO_Port_B_ISR
.word GPIO_Port_C_ISR
.word GPIO_Port_D_ISR
.word GPIO_Port_E_ISR
.word UART0_ISR
.word UART1_ISR
.word SSI_ISR
.word vI2C_ISR
.word PWM_Fault_ISR
.word PWM_Generator_0_ISR
.word PWM_Generator_1_ISR
.word PWM_Generator_2_ISR
.word QEI_ISR
.word ADC_Sequence_0_ISR
.word ADC_Sequence_1_ISR
.word ADC_Sequence_2_ISR
.word ADC_Sequence_3_ISR
.word Watchdog_timer_ISR
.word Timer0a_ISR
.word Timer0b_ISR
.word Timer1a_ISR
.word Timer1b_ISR
.word Timer2a_ISR
.word Timer2b_ISR
.word Analog_Comparator_0_ISR
.word Analog_Comparator_1_ISR
.word Analog_Comparator_2_ISR
.word System_Control_ISR
.word FLASH_Control_ISR
.section .init, "ax"
.thumb_func
DEFAULT_ISR_HANDLER NmiISR
DEFAULT_ISR_HANDLER FaultISR
DEFAULT_ISR_HANDLER SVCallISR
DEFAULT_ISR_HANDLER SysTickISR
DEFAULT_ISR_HANDLER GPIO_Port_A_ISR
DEFAULT_ISR_HANDLER GPIO_Port_B_ISR
DEFAULT_ISR_HANDLER GPIO_Port_C_ISR
DEFAULT_ISR_HANDLER GPIO_Port_D_ISR
DEFAULT_ISR_HANDLER GPIO_Port_E_ISR
DEFAULT_ISR_HANDLER UART0_ISR
DEFAULT_ISR_HANDLER UART1_ISR
DEFAULT_ISR_HANDLER SSI_ISR
DEFAULT_ISR_HANDLER I2C_ISR
DEFAULT_ISR_HANDLER PWM_Fault_ISR
DEFAULT_ISR_HANDLER PWM_Generator_0_ISR
DEFAULT_ISR_HANDLER PWM_Generator_1_ISR
DEFAULT_ISR_HANDLER PWM_Generator_2_ISR
DEFAULT_ISR_HANDLER QEI_ISR
DEFAULT_ISR_HANDLER ADC_Sequence_0_ISR
DEFAULT_ISR_HANDLER ADC_Sequence_1_ISR
DEFAULT_ISR_HANDLER ADC_Sequence_2_ISR
DEFAULT_ISR_HANDLER ADC_Sequence_3_ISR
DEFAULT_ISR_HANDLER Watchdog_timer_ISR
DEFAULT_ISR_HANDLER Timer0a_ISR
DEFAULT_ISR_HANDLER Timer0b_ISR
DEFAULT_ISR_HANDLER Timer1a_ISR
DEFAULT_ISR_HANDLER Timer1b_ISR
DEFAULT_ISR_HANDLER Timer2a_ISR
DEFAULT_ISR_HANDLER Timer2b_ISR
DEFAULT_ISR_HANDLER Analog_Comparator_0_ISR
DEFAULT_ISR_HANDLER Analog_Comparator_1_ISR
DEFAULT_ISR_HANDLER Analog_Comparator_2_ISR
DEFAULT_ISR_HANDLER System_Control_ISR
DEFAULT_ISR_HANDLER FLASH_Control_ISR