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Add PIC24, dsPIC and Coldfire files.

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This commit is contained in:
Richard Barry 2006-10-09 11:40:24 +00:00
parent 5561c55286
commit 3878b82c9b
218 changed files with 54714 additions and 0 deletions
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77
Demo/dsPIC_MPLAB/FreeRTOSConfig.h Normal file
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/*
FreeRTOS.org V4.1.0 - Copyright (C) 2003-2006 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org 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.org 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.org; 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.org, 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
#include <p33FJ256GP710.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 1
#define configUSE_IDLE_HOOK 1
#define configUSE_TICK_HOOK 0
#define configTICK_RATE_HZ ( ( portTickType ) 1000 )
#define configCPU_CLOCK_HZ ( ( unsigned portLONG ) 25000000 ) /* Fosc / 2 */
#define configMAX_PRIORITIES ( ( unsigned portBASE_TYPE ) 4 )
#define configMINIMAL_STACK_SIZE ( 105 )
#define configTOTAL_HEAP_SIZE ( ( size_t ) 5120 )
#define configMAX_TASK_NAME_LEN ( 4 )
#define configUSE_TRACE_FACILITY 0
#define configUSE_16_BIT_TICKS 1
#define configIDLE_SHOULD_YIELD 1
/* Co-routine definitions. */
#define configUSE_CO_ROUTINES 1
#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 1
#define INCLUDE_uxTaskPriorityGet 0
#define INCLUDE_vTaskDelete 0
#define INCLUDE_vTaskCleanUpResources 0
#define INCLUDE_vTaskSuspend 1
#define INCLUDE_vTaskDelayUntil 1
#define INCLUDE_vTaskDelay 1
#endif /* FREERTOS_CONFIG_H */

113
Demo/dsPIC_MPLAB/ParTest/ParTest.c Normal file
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/*
FreeRTOS.org V4.1.0 - Copyright (C) 2003-2006 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org 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.org 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.org; 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.org, 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.
***************************************************************************
*/
/* Scheduler includes. */
#include "FreeRTOS.h"
/* Demo app includes. */
#include "partest.h"
#define ptOUTPUT 0
#define ptALL_OFF 0
unsigned portBASE_TYPE uxOutput;
/*-----------------------------------------------------------
* Simple parallel port IO routines.
*-----------------------------------------------------------*/
void vParTestInitialise( void )
{
/* The explorer 16 board has LED's on port A. All bits are set as output
so PORTA is read-modified-written directly. Two pins have change
notification pullups that need disabling. */
CNPU2bits.CN22PUE = 0;
CNPU2bits.CN23PUE = 0;
TRISA = ptOUTPUT;
PORTA = ptALL_OFF;
uxOutput = ptALL_OFF;
}
/*-----------------------------------------------------------*/
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
unsigned portBASE_TYPE uxLEDBit;
/* Which port A bit is being modified? */
uxLEDBit = 1 << uxLED;
if( xValue )
{
/* Turn the LED on. */
portENTER_CRITICAL();
{
uxOutput |= uxLEDBit;
PORTA = uxOutput;
}
portEXIT_CRITICAL();
}
else
{
/* Turn the LED off. */
portENTER_CRITICAL();
{
uxOutput &= ~uxLEDBit;
PORTA = uxOutput;
}
portEXIT_CRITICAL();
}
}
/*-----------------------------------------------------------*/
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
unsigned portBASE_TYPE uxLEDBit;
uxLEDBit = 1 << uxLED;
portENTER_CRITICAL();
{
/* If the LED is already on - turn it off. If the LED is already
off, turn it on. */
if( uxOutput & uxLEDBit )
{
uxOutput &= ~uxLEDBit;
PORTA = uxOutput;
}
else
{
uxOutput |= uxLEDBit;
PORTA = uxOutput;
}
}
portEXIT_CRITICAL();
}

3
Demo/dsPIC_MPLAB/RTOSDemo.mcs Normal file
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[Header]
MagicCookie={0b13fe8c-dfe0-40eb-8900-6712719559a7}
Version=1.0

BIN
Demo/dsPIC_MPLAB/RTOSDemo.mcw Normal file
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67
Demo/dsPIC_MPLAB/RTOSDemo_dsPIC.mcp Normal file
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[HEADER]
magic_cookie={66E99B07-E706-4689-9E80-9B2582898A13}
file_version=1.0
[PATH_INFO]
dir_src=
dir_bin=
dir_tmp=
dir_sin=
dir_inc=.;C:\E\Dev\FreeRTOS\Demo\Common\include;C:\E\Dev\FreeRTOS\Demo\dsPIC_MPLAB;C:\E\Dev\FreeRTOS\source\include
dir_lib=
dir_lkr=
[CAT_FILTERS]
filter_src=*.s;*.c
filter_inc=*.h;*.inc
filter_obj=*.o
filter_lib=*.a
filter_lkr=*.gld
[OTHER_FILES]
file_000=no
file_001=no
file_002=no
file_003=no
file_004=no
file_005=no
file_006=no
file_007=no
file_008=no
file_009=no
file_010=no
file_011=no
file_012=no
file_013=no
file_014=no
file_015=no
file_016=no
file_017=no
file_018=no
file_019=no
[FILE_INFO]
file_000=main.c
file_001=..\..\source\list.c
file_002=..\..\source\queue.c
file_003=..\..\source\tasks.c
file_004=..\..\source\portable\MPLAB\PIC24_dsPIC\port.c
file_005=..\..\source\portable\MemMang\heap_1.c
file_006=..\Common\Minimal\BlockQ.c
file_007=..\..\source\croutine.c
file_008=..\Common\Minimal\crflash.c
file_009=ParTest\ParTest.c
file_010=..\Common\Minimal\blocktim.c
file_011=..\Common\Minimal\integer.c
file_012=..\Common\Minimal\comtest.c
file_013=serial\serial.c
file_014=..\..\source\include\semphr.h
file_015=..\..\source\include\task.h
file_016=..\..\source\include\croutine.h
file_017=..\..\source\include\queue.h
file_018=FreeRTOSConfig.h
file_019=p33FJ256GP710.gld
[SUITE_INFO]
suite_guid={479DDE59-4D56-455E-855E-FFF59A3DB57E}
suite_state=
[TOOL_SETTINGS]
TS{7D9C6ECE-785D-44CB-BA22-17BF2E119622}=-g
TS{25AC22BD-2378-4FDB-BFB6-7345A15512D3}=-g -Wall -DMPLAB_DSPIC_PORT -O2 -fomit-frame-pointer -fno-schedule-insns -fno-schedule-insns2
TS{7DAC9A1D-4C45-45D6-B25A-D117C74E8F5A}=--defsym=__ICD2RAM=1 -Map="$(TARGETBASE).map" -o"$(TARGETBASE).$(TARGETSUFFIX)"
TS{509E5861-1E2A-483B-8B6B-CA8DB7F2DD78}=

3
Demo/dsPIC_MPLAB/RTOSDemo_dsPIC.mcs Normal file
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[Header]
MagicCookie={0b13fe8c-dfe0-40eb-8900-6712719559a7}
Version=1.0

420
Demo/dsPIC_MPLAB/main.c Normal file
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/*
FreeRTOS.org V4.1.0 - Copyright (C) 2003-2006 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org 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.org 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.org; 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.org, 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.
***************************************************************************
*/
/*
* Creates all the demo application tasks, then starts the scheduler. The WEB
* documentation provides more details of the standard demo application tasks.
* In addition to the standard demo tasks, the following tasks are defined
* within this file:
*
* "Register test" tasks - These tasks first set all the general purpose
* registers to a known value (with each register containing a different value)
* then test each general purpose register to ensure it still contains the
* set value. There are two register test tasks, with different values being
* used by each. The register test tasks will be preempted frequently due to
* their low priority. Setting then testing the value of each register in this
* manner ensures the context of the tasks is being correctly saved and then
* restored as the preemptive context switches occur. An error is flagged
* should any register be found to contain an unexpected value. In addition
* the register test tasks maintain a count of the number of times they cycle,
* so an error can also be flagged should the cycle count not increment as
* expected (indicating the the tasks are not executing at all).
*
* "Check" task - This only executes every three seconds but has the highest
* priority so is guaranteed to get processor time. Its main function is to
* check that all the other tasks are still operational. Each task maintains a
* unique count that is incremented each time the task successfully completes
* its function. Should any error occur within such a task the count is
* permanently halted. The check task inspects the count of each task to
* ensure it has changed since the last time the check task executed. If all
* the count variables have changed all the tasks are still executing error
* free, and the check task toggles the onboard LED. Should any task contain
* an error at any time check task cycle frequency is increased to 500ms,
* causing the LED toggle rate to increase from 3 seconds to 500ms and in so
* doing providing visual feedback that an error has occurred.
*
*/
/* Scheduler includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "croutine.h"
/* Demo application includes. */
#include "BlockQ.h"
#include "crflash.h"
#include "blocktim.h"
#include "integer.h"
#include "comtest2.h"
#include "partest.h"
/* Demo task priorities. */
#define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
#define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
#define mainCOM_TEST_PRIORITY ( 2 )
/* Delay between check task cycles when an error has/has not been detected. */
#define mainNO_ERROR_DELAY ( ( portTickType ) 3000 / portTICK_RATE_MS )
#define mainERROR_DELAY ( ( portTickType ) 500 / portTICK_RATE_MS )
/* The number of flash co-routines to create. */
#define mainNUM_FLASH_COROUTINES ( 3 )
/* Baud rate used by the comtest tasks. */
#define mainCOM_TEST_BAUD_RATE ( 19200 )
/* The LED used by the comtest tasks. mainCOM_TEST_LED + 1 is also used.
See the comtest.c file for more information. */
#define mainCOM_TEST_LED ( 4 )
/* The LED used by the check task. */
#define mainCHECK_LED ( 7 )
/*-----------------------------------------------------------*/
/*
* The register test tasks as described at the top of this file.
*/
void xRegisterTest1( void *pvParameters );
void xRegisterTest2( void *pvParameters );
/*
* The check task as described at the top of this file.
*/
static void vCheckTask( void *pvParameters );
/*
* Setup the processor ready for the demo.
*/
static void prvSetupHardware( void );
/*-----------------------------------------------------------*/
/* Variables used to detect errors within the register test tasks. */
static volatile unsigned portSHORT usTest1CycleCounter = 0, usTest2CycleCounter = 0;
static unsigned portSHORT usPreviousTest1Count = 0, usPreviousTest2Count = 0;
/* Set to pdTRUE should an error be detected in any of the standard demo tasks
or tasks defined within this file. */
static unsigned portSHORT usErrorDetected = pdFALSE;
/*-----------------------------------------------------------*/
/*
* Create the demo tasks then start the scheduler.
*/
int main( void )
{
/* Configure any hardware required for this demo. */
prvSetupHardware();
/* Create the standard demo tasks. */
vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
vStartIntegerMathTasks( tskIDLE_PRIORITY );
vStartFlashCoRoutines( mainNUM_FLASH_COROUTINES );
vAltStartComTestTasks( mainCOM_TEST_PRIORITY, mainCOM_TEST_BAUD_RATE, mainCOM_TEST_LED );
vCreateBlockTimeTasks();
/* Create the test tasks defined within this file. */
xTaskCreate( xRegisterTest1, "Reg1", configMINIMAL_STACK_SIZE, ( void * ) &usTest1CycleCounter, tskIDLE_PRIORITY, NULL );
xTaskCreate( xRegisterTest2, "Reg2", configMINIMAL_STACK_SIZE, ( void * ) &usTest2CycleCounter, tskIDLE_PRIORITY, NULL );
xTaskCreate( vCheckTask, "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
/* Finally start the scheduler. */
vTaskStartScheduler();
/* Will only reach here if there is insufficient heap available to start
the scheduler. */
return 0;
}
/*-----------------------------------------------------------*/
static void prvSetupHardware( void )
{
vParTestInitialise();
}
/*-----------------------------------------------------------*/
static void vCheckTask( void *pvParameters )
{
portTickType xLastExecutionTime;
/* Start with the no error delay. The long delay will cause the LED to flash
slowly. */
portTickType xDelay = mainNO_ERROR_DELAY;
/* Initialise xLastExecutionTime so the first call to vTaskDelayUntil()
works correctly. */
xLastExecutionTime = xTaskGetTickCount();
for( ;; )
{
/* Wait until it is time for the next cycle. */
vTaskDelayUntil( &xLastExecutionTime, xDelay );
/* Has an error been found in any of the standard demo tasks? */
if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
{
usErrorDetected = pdTRUE;
}
if( xAreComTestTasksStillRunning() != pdTRUE )
{
usErrorDetected = pdTRUE;
}
if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
{
usErrorDetected = pdTRUE;
}
if( xAreBlockingQueuesStillRunning() != pdTRUE )
{
usErrorDetected = pdTRUE;
}
/* Are the register test tasks still cycling? */
if( usTest1CycleCounter == usPreviousTest1Count )
{
usErrorDetected = pdTRUE;
}
if( usTest2CycleCounter == usPreviousTest2Count )
{
usErrorDetected = pdTRUE;
}
usPreviousTest2Count = usTest2CycleCounter;
usPreviousTest1Count = usTest1CycleCounter;
/* If an error has been detected in any task then the delay will be
reduced to increase the cycle rate of this task. This has the effect
of causing the LED to flash much faster giving a visual indication of
the error condition. */
if( usErrorDetected != pdFALSE )
{
xDelay = mainERROR_DELAY;
}
/* Finally, toggle the LED before returning to delay to wait for the
next cycle. */
vParTestToggleLED( mainCHECK_LED );
}
}
/*-----------------------------------------------------------*/
void xRegisterTest1( void *pvParameters )
{
/* This static so as not to use the frame pointer. They are volatile
also to avoid it being stored in a register that we clobber during the test. */
static unsigned portSHORT * volatile pusParameter;
/* The variable incremented by this task is passed in as the parameter
even though it is defined within this file. This is just to test the
parameter passing mechanism. */
pusParameter = pvParameters;
for( ;; )
{
/* Increment the variable to show this task is still cycling. */
( *pusParameter )++;
/* Set the w registers to known values, then check that each register
contains the expected value. See the explanation at the top of this
file for more information. */
asm volatile( "mov.w #0x0101, W0 \n" \
"mov.w #0x0102, W1 \n" \
"mov.w #0x0103, W2 \n" \
"mov.w #0x0104, W3 \n" \
"mov.w #0x0105, W4 \n" \
"mov.w #0x0106, W5 \n" \
"mov.w #0x0107, W6 \n" \
"mov.w #0x0108, W7 \n" \
"mov.w #0x0109, W8 \n" \
"mov.w #0x010a, W9 \n" \
"mov.w #0x010b, W10 \n" \
"mov.w #0x010c, W11 \n" \
"mov.w #0x010d, W12 \n" \
"mov.w #0x010e, W13 \n" \
"mov.w #0x010f, W14 \n" \
"sub #0x0101, W0 \n" \
"cp0.w W0 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x0102, W1 \n" \
"cp0.w W1 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x0103, W2 \n" \
"cp0.w W2 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x0104, W3 \n" \
"cp0.w W3 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x0105, W4 \n" \
"cp0.w W4 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x0106, W5 \n" \
"cp0.w W5 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x0107, W6 \n" \
"cp0.w W6 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x0108, W7 \n" \
"cp0.w W7 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x0109, W8 \n" \
"cp0.w W8 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x010a, W9 \n" \
"cp0.w W9 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x010b, W10 \n" \
"cp0.w W10 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x010c, W11 \n" \
"cp0.w W11 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x010d, W12 \n" \
"cp0.w W12 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x010e, W13 \n" \
"cp0.w W13 \n" \
"bra NZ, ERROR_TEST1 \n" \
"sub #0x010f, W14 \n" \
"cp0.w W14 \n" \
"bra NZ, ERROR_TEST1 \n" \
"bra NO_ERROR1 \n" \
"ERROR_TEST1: \n" \
"mov.w #1, W0 \n" \
"mov.w W0, _usErrorDetected\n" \
"NO_ERROR1: \n" );
}
}
/*-----------------------------------------------------------*/
void xRegisterTest2( void *pvParameters )
{
/* This static so as not to use the frame pointer. They are volatile
also to avoid it being stored in a register that we clobber during the test. */
static unsigned portSHORT * volatile pusParameter;
/* The variable incremented by this task is passed in as the parameter
even though it is defined within this file. This is just to test the
parameter passing mechanism. */
pusParameter = pvParameters;
for( ;; )
{
/* Increment the variable to show this task is still cycling. */
( *pusParameter )++;
/* Set the w registers to known values, then check that each register
contains the expected value. See the explanation at the top of this
file for more information. */
asm volatile( "mov.w #0x0100, W0 \n" \
"mov.w #0x0101, W1 \n" \
"mov.w #0x0102, W2 \n" \
"mov.w #0x0103, W3 \n" \
"mov.w #0x0104, W4 \n" \
"mov.w #0x0105, W5 \n" \
"mov.w #0x0106, W6 \n" \
"mov.w #0x0107, W7 \n" \
"mov.w #0x0108, W8 \n" \
"mov.w #0x0109, W9 \n" \
"mov.w #0x010a, W10 \n" \
"mov.w #0x010b, W11 \n" \
"mov.w #0x010c, W12 \n" \
"mov.w #0x010d, W13 \n" \
"mov.w #0x010e, W14 \n" \
"sub #0x0100, W0 \n" \
"cp0.w W0 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x0101, W1 \n" \
"cp0.w W1 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x0102, W2 \n" \
"cp0.w W2 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x0103, W3 \n" \
"cp0.w W3 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x0104, W4 \n" \
"cp0.w W4 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x0105, W5 \n" \
"cp0.w W5 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x0106, W6 \n" \
"cp0.w W6 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x0107, W7 \n" \
"cp0.w W7 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x0108, W8 \n" \
"cp0.w W8 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x0109, W9 \n" \
"cp0.w W9 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x010a, W10 \n" \
"cp0.w W10 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x010b, W11 \n" \
"cp0.w W11 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x010c, W12 \n" \
"cp0.w W12 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x010d, W13 \n" \
"cp0.w W13 \n" \
"bra NZ, ERROR_TEST2 \n" \
"sub #0x010e, W14 \n" \
"cp0.w W14 \n" \
"bra NZ, ERROR_TEST2 \n" \
"bra NO_ERROR2 \n" \
"ERROR_TEST2: \n" \
"mov.w #1, W0 \n" \
"mov.w W0, _usErrorDetected\n" \
"NO_ERROR2: \n" );
}
}
/*-----------------------------------------------------------*/
void vApplicationIdleHook( void )
{
/* Schedule the co-routines from within the idle task hook. */
vCoRoutineSchedule();
}
/*-----------------------------------------------------------*/

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/*
FreeRTOS.org V4.1.0 - Copyright (C) 2003-2006 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org 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.org 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.org; 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.org, 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.
***************************************************************************
*/
/* BASIC INTERRUPT DRIVEN SERIAL PORT DRIVER.
NOTE: This driver is primarily to test the scheduler functionality. It does
not effectively use the buffers or DMA and is therefore not intended to be
an example of an efficient driver. */
/* Standard include file. */
#include <stdlib.h>
/* Scheduler include files. */
#include "FreeRTOS.h"
#include "queue.h"
#include "task.h"
/* Demo app include files. */
#include "serial.h"
/* Hardware setup. */
#define serOUTPUT 0
#define serINPUT 1
#define serLOW_SPEED 0
#define serONE_STOP_BIT 0
#define serEIGHT_DATA_BITS_NO_PARITY 0
#define serNORMAL_IDLE_STATE 0
#define serAUTO_BAUD_OFF 0
#define serLOOPBACK_OFF 0
#define serWAKE_UP_DISABLE 0
#define serNO_HARDWARE_FLOW_CONTROL 0
#define serSTANDARD_IO 0
#define serNO_IRDA 0
#define serCONTINUE_IN_IDLE_MODE 0
#define serUART_ENABLED 1
#define serINTERRUPT_ON_SINGLE_CHAR 0
#define serTX_ENABLE 1
#define serINTERRUPT_ENABLE 1
#define serINTERRUPT_DISABLE 0
#define serCLEAR_FLAG 0
#define serSET_FLAG 1
/* The queues used to communicate between tasks and ISR's. */
static xQueueHandle xRxedChars;
static xQueueHandle xCharsForTx;
static portBASE_TYPE xTxHasEnded;
/*-----------------------------------------------------------*/
xComPortHandle xSerialPortInitMinimal( unsigned portLONG ulWantedBaud, unsigned portBASE_TYPE uxQueueLength )
{
portCHAR cChar;
/* Create the queues used by the com test task. */
xRxedChars = xQueueCreate( uxQueueLength, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
xCharsForTx = xQueueCreate( uxQueueLength, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
/* Setup the UART. */
U2MODEbits.BRGH = serLOW_SPEED;
U2MODEbits.STSEL = serONE_STOP_BIT;
U2MODEbits.PDSEL = serEIGHT_DATA_BITS_NO_PARITY;
U2MODEbits.ABAUD = serAUTO_BAUD_OFF;
U2MODEbits.LPBACK = serLOOPBACK_OFF;
U2MODEbits.WAKE = serWAKE_UP_DISABLE;
U2MODEbits.UEN = serNO_HARDWARE_FLOW_CONTROL;
U2MODEbits.IREN = serNO_IRDA;
U2MODEbits.USIDL = serCONTINUE_IN_IDLE_MODE;
U2MODEbits.UARTEN = serUART_ENABLED;
U2BRG = (unsigned portSHORT)(( (float)configCPU_CLOCK_HZ / ( (float)16 * (float)ulWantedBaud ) ) - (float)0.5);
U2STAbits.URXISEL = serINTERRUPT_ON_SINGLE_CHAR;
U2STAbits.UTXEN = serTX_ENABLE;
U2STAbits.UTXINV = serNORMAL_IDLE_STATE;
U2STAbits.UTXISEL0 = serINTERRUPT_ON_SINGLE_CHAR;
U2STAbits.UTXISEL1 = serINTERRUPT_ON_SINGLE_CHAR;
/* It is assumed that this function is called prior to the scheduler being
started. Therefore interrupts must not be allowed to occur yet as they
may attempt to perform a context switch. */
portDISABLE_INTERRUPTS();
IFS1bits.U2RXIF = serCLEAR_FLAG;
IFS1bits.U2TXIF = serCLEAR_FLAG;
IPC7bits.U2RXIP = portKERNEL_INTERRUPT_PRIORITY;
IPC7bits.U2TXIP = portKERNEL_INTERRUPT_PRIORITY;
IEC1bits.U2TXIE = serINTERRUPT_ENABLE;
IEC1bits.U2RXIE = serINTERRUPT_ENABLE;
/* Clear the Rx buffer. */
while( U2STAbits.URXDA == serSET_FLAG )
{
cChar = U2RXREG;
}
xTxHasEnded = pdTRUE;
return NULL;
}
/*-----------------------------------------------------------*/
signed portBASE_TYPE xSerialGetChar( xComPortHandle pxPort, signed portCHAR *pcRxedChar, portTickType xBlockTime )
{
/* Only one port is supported. */
( void ) pxPort;
/* Get the next character from the buffer. Return false if no characters
are available or arrive before xBlockTime expires. */
if( xQueueReceive( xRxedChars, pcRxedChar, xBlockTime ) )
{
return pdTRUE;
}
else
{
return pdFALSE;
}
}
/*-----------------------------------------------------------*/
signed portBASE_TYPE xSerialPutChar( xComPortHandle pxPort, signed portCHAR cOutChar, portTickType xBlockTime )
{
/* Only one port is supported. */
( void ) pxPort;
/* Return false if after the block time there is no room on the Tx queue. */
if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) != pdPASS )
{
return pdFAIL;
}
/* A critical section should not be required as xTxHasEnded will not be
written to by the ISR if it is already 0 (is this correct?). */
if( xTxHasEnded )
{
xTxHasEnded = pdFALSE;
IFS1bits.U2TXIF = serSET_FLAG;
}
return pdPASS;
}
/*-----------------------------------------------------------*/
void vSerialClose( xComPortHandle xPort )
{
}
/*-----------------------------------------------------------*/
volatile short s = 0;
char c[80] = {0};
void __attribute__((__interrupt__)) _U2RXInterrupt( void )
{
portCHAR cChar;
portBASE_TYPE xYieldRequired = pdFALSE;
/* Get the character and post it on the queue of Rxed characters.
If the post causes a task to wake force a context switch as the woken task
may have a higher priority than the task we have interrupted. */
IFS1bits.U2RXIF = serCLEAR_FLAG;
while( U2STAbits.URXDA )
{
cChar = U2RXREG;
xYieldRequired = xQueueSendFromISR( xRxedChars, &cChar, xYieldRequired );
}
if( xYieldRequired != pdFALSE )
{
taskYIELD();
}
}
/*-----------------------------------------------------------*/
void __attribute__((__interrupt__)) _U2TXInterrupt( void )
{
signed portCHAR cChar;
portBASE_TYPE xTaskWoken = pdFALSE;
/* If the transmit buffer is full we cannot get the next character.
Another interrupt will occur the next time there is space so this does
not matter. */
IFS1bits.U2TXIF = serCLEAR_FLAG;
while( !( U2STAbits.UTXBF ) )
{
if( xQueueReceiveFromISR( xCharsForTx, &cChar, &xTaskWoken ) == pdTRUE )
{
/* Send the next character queued for Tx. */
U2TXREG = cChar;
}
else
{
/* Queue empty, nothing to send. */
xTxHasEnded = pdTRUE;
break;
}
}
if( xTaskWoken != pdFALSE )
{
taskYIELD();
}
}