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Starting point for Tasking XMC4500 demo. Compiling only, not executed yet.

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Richard Barry 13 years ago
parent 1312fada7c
commit 1ccb58d56d
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119
Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/.cproject
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20
Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/.project
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>RTOSDemo</name>
<comment></comment>
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143
Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/FreeRTOSConfig.h
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/*
FreeRTOS V7.1.0 - Copyright (C) 2011 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!
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
#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.
*----------------------------------------------------------*/
#include <stdint.h>
extern uint32_t SystemCoreClock;
#define configUSE_PREEMPTION 1
#define configUSE_IDLE_HOOK 0
#define configUSE_TICK_HOOK 0
#define configCPU_CLOCK_HZ ( SystemCoreClock )
#define configTICK_RATE_HZ ( ( portTickType ) 1000 )
#define configMAX_PRIORITIES ( ( unsigned portBASE_TYPE ) 5 )
#define configMINIMAL_STACK_SIZE ( ( unsigned short ) 130 )
#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 40960 ) )
#define configMAX_TASK_NAME_LEN ( 10 )
#define configUSE_TRACE_FACILITY 1
#define configUSE_16_BIT_TICKS 0
#define configIDLE_SHOULD_YIELD 1
#define configUSE_MUTEXES 1
#define configQUEUE_REGISTRY_SIZE 8
#define configCHECK_FOR_STACK_OVERFLOW 2
#define configUSE_RECURSIVE_MUTEXES 1
#define configUSE_MALLOC_FAILED_HOOK 1
#define configUSE_APPLICATION_TASK_TAG 0
#define configUSE_COUNTING_SEMAPHORES 1
#define configGENERATE_RUN_TIME_STATS 0
/* Co-routine definitions. */
#define configUSE_CO_ROUTINES 0
#define configMAX_CO_ROUTINE_PRIORITIES ( 2 )
/* Software timer definitions. */
#define configUSE_TIMERS 1
#define configTIMER_TASK_PRIORITY ( 2 )
#define configTIMER_QUEUE_LENGTH 5
#define configTIMER_TASK_STACK_DEPTH ( configMINIMAL_STACK_SIZE * 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 1
#define INCLUDE_vTaskDelete 1
#define INCLUDE_vTaskCleanUpResources 1
#define INCLUDE_vTaskSuspend 1
#define INCLUDE_vTaskDelayUntil 1
#define INCLUDE_vTaskDelay 1
/* Cortex-M specific definitions. */
#ifdef __NVIC_PRIO_BITS
/* __BVIC_PRIO_BITS will be specified when CMSIS is being used. */
#define configPRIO_BITS __NVIC_PRIO_BITS
#else
#define configPRIO_BITS 6 /* 63 priority levels */
#endif
/* The lowest interrupt priority that can be used in a call to a "set priority"
function. */
#define configLIBRARY_LOWEST_INTERRUPT_PRIORITY 0x3f
/* The highest interrupt priority that can be used by any interrupt service
routine that makes calls to interrupt safe FreeRTOS API functions. DO NOT CALL
INTERRUPT SAFE FREERTOS API FUNCTIONS FROM ANY INTERRUPT THAT HAS A HIGHER
PRIORITY THAN THIS! (higher priorities are lower numeric values. */
#define configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY 5
/* Interrupt priorities used by the kernel port layer itself. These are generic
to all Cortex-M ports, and do not rely on any particular library functions. */
#define configKERNEL_INTERRUPT_PRIORITY ( configLIBRARY_LOWEST_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
#define configMAX_SYSCALL_INTERRUPT_PRIORITY ( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
/* Normal assert() semantics without relying on the provision of an assert.h
header file. */
#define configASSERT( x ) if( ( x ) == 0 ) { taskDISABLE_INTERRUPTS(); for( ;; ); }
#endif /* FREERTOS_CONFIG_H */

234
Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/FreeRTOS_Source/portable/Tasking/ARM_CM4F/port.c
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/*
FreeRTOS V7.1.0 - Copyright (C) 2011 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!
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
/*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the ARM CM4F port.
*----------------------------------------------------------*/
/* Scheduler includes. */
#include "FreeRTOS.h"
#include "task.h"
/* Constants required to manipulate the NVIC. */
#define portNVIC_SYSTICK_CTRL ( ( volatile unsigned long * ) 0xe000e010 )
#define portNVIC_SYSTICK_LOAD ( ( volatile unsigned long * ) 0xe000e014 )
#define portNVIC_INT_CTRL ( ( volatile unsigned long * ) 0xe000ed04 )
#define portNVIC_SYSPRI2 ( ( volatile unsigned long * ) 0xe000ed20 )
#define portNVIC_SYSTICK_CLK 0x00000004
#define portNVIC_SYSTICK_INT 0x00000002
#define portNVIC_SYSTICK_ENABLE 0x00000001
#define portNVIC_PENDSVSET 0x10000000
#define portNVIC_PENDSV_PRI ( ( ( unsigned long ) configKERNEL_INTERRUPT_PRIORITY ) << 16 )
#define portNVIC_SYSTICK_PRI ( ( ( unsigned long ) configKERNEL_INTERRUPT_PRIORITY ) << 24 )
/* Constants required to manipulate the VFP. */
#define portFPCCR ( ( volatile unsigned long * ) 0xe000ef34 ) /* Floating point context control register. */
#define portASPEN_AND_LSPEN_BITS ( 0x3UL << 30UL )
/* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000 )
#define portINITIAL_EXEC_RETURN ( 0xfffffffd )
/* The priority used by the kernel is assigned to a variable to make access
from inline assembler easier. */
const unsigned long ulKernelPriority = configKERNEL_INTERRUPT_PRIORITY;
/* Each task maintains its own interrupt status in the critical nesting
variable. */
static unsigned long ulCriticalNesting = 0xaaaaaaaaUL;
/*
* Setup the timer to generate the tick interrupts.
*/
static void prvSetupTimerInterrupt( void );
/*
* Exception handlers.
*/
void SysTick_Handler( void );
/*
* Functions defined in port_asm.asm.
*/
extern void vPortEnableVFP( void );
extern void vPortStartFirstTask( void );
/* This exists purely to allow the const to be used from within the
port_asm.asm assembly file. */
const unsigned long ulMaxSyscallInterruptPriorityConst = configMAX_SYSCALL_INTERRUPT_PRIORITY;
/*-----------------------------------------------------------*/
/*
* See header file for description.
*/
portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters )
{
/* Simulate the stack frame as it would be created by a context switch
interrupt. */
/* Offset added to account for the way the MCU uses the stack on entry/exit
of interrupts, and to ensure alignment. */
pxTopOfStack -= 2;
*pxTopOfStack = portINITIAL_XPSR; /* xPSR */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) pxCode; /* PC */
pxTopOfStack--;
*pxTopOfStack = 0; /* LR */
/* Save code space by skipping register initialisation. */
pxTopOfStack -= 5; /* R12, R3, R2 and R1. */
*pxTopOfStack = ( portSTACK_TYPE ) pvParameters; /* R0 */
/* A save method is being used that requiers each task to maintain its
own exec return value. */
pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN;
pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */
return pxTopOfStack;
}
/*-----------------------------------------------------------*/
/*
* See header file for description.
*/
portBASE_TYPE xPortStartScheduler( void )
{
/* Make PendSV and SysTick the lowest priority interrupts. */
*(portNVIC_SYSPRI2) |= portNVIC_PENDSV_PRI;
*(portNVIC_SYSPRI2) |= portNVIC_SYSTICK_PRI;
/* Start the timer that generates the tick ISR. Interrupts are disabled
here already. */
prvSetupTimerInterrupt();
/* Initialise the critical nesting count ready for the first task. */
ulCriticalNesting = 0;
/* Ensure the VFP is enabled - it should be anyway. */
vPortEnableVFP();
/* Lazy save always. */
*( portFPCCR ) |= portASPEN_AND_LSPEN_BITS;
/* Start the first task. */
vPortStartFirstTask();
/* Should not get here! */
return 0;
}
/*-----------------------------------------------------------*/
void vPortEndScheduler( void )
{
/* It is unlikely that the CM4F port will require this function as there
is nothing to return to. */
}
/*-----------------------------------------------------------*/
void vPortYieldFromISR( void )
{
/* Set a PendSV to request a context switch. */
*(portNVIC_INT_CTRL) = portNVIC_PENDSVSET;
}
/*-----------------------------------------------------------*/
void vPortEnterCritical( void )
{
portDISABLE_INTERRUPTS();
ulCriticalNesting++;
}
/*-----------------------------------------------------------*/
void vPortExitCritical( void )
{
ulCriticalNesting--;
if( ulCriticalNesting == 0 )
{
portENABLE_INTERRUPTS();
}
}
/*-----------------------------------------------------------*/
void SysTick_Handler( void )
{
unsigned long ulDummy;
/* If using preemption, also force a context switch. */
#if configUSE_PREEMPTION == 1
*(portNVIC_INT_CTRL) = portNVIC_PENDSVSET;
#endif
ulDummy = portSET_INTERRUPT_MASK_FROM_ISR();
{
vTaskIncrementTick();
}
portCLEAR_INTERRUPT_MASK_FROM_ISR( ulDummy );
}
/*-----------------------------------------------------------*/
/*
* Setup the systick timer to generate the tick interrupts at the required
* frequency.
*/
void prvSetupTimerInterrupt( void )
{
/* Configure SysTick to interrupt at the requested rate. */
*(portNVIC_SYSTICK_LOAD) = ( configCPU_CLOCK_HZ / configTICK_RATE_HZ ) - 1UL;
*(portNVIC_SYSTICK_CTRL) = portNVIC_SYSTICK_CLK | portNVIC_SYSTICK_INT | portNVIC_SYSTICK_ENABLE;
}
/*-----------------------------------------------------------*/

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Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/FreeRTOS_Source/portable/Tasking/ARM_CM4F/port_asm.asm
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;/*
; FreeRTOS V7.1.0 - Copyright (C) 2011 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!
;
; http://www.FreeRTOS.org - Documentation, latest information, license and
; contact details.
;
; http://www.SafeRTOS.com - A version that is certified for use in safety
; critical systems.
;
; http://www.OpenRTOS.com - Commercial support, development, porting,
; licensing and training services.
;*/
.extern pxCurrentTCB
.extern vTaskSwitchContext
.extern ulMaxSyscallInterruptPriorityConst
.global PendSV_Handler
.global SVC_Handler
.global vPortStartFirstTask
.global vPortEnableVFP
;-----------------------------------------------------------
.section .text
.thumb
.align 4
PendSV_Handler: .type func
mrs r0, psp
;Get the location of the current TCB.
ldr r3, =pxCurrentTCB
ldr r2, [r3]
;Is the task using the FPU context? If so, push high vfp registers.
tst r14, #0x10
it eq
vstmdbeq r0!, {s16-s31}
;Save the core registers.
stmdb r0!, {r4-r11, r14}
;Save the new top of stack into the first member of the TCB.
str r0, [r2]
stmdb sp!, {r3, r14}
ldr r0, ulMaxSyscallInterruptPriorityConst
ldr r0, [r0]
msr basepri, r0
; bl vTaskSwitchContext
mov r0, #0
msr basepri, r0
ldmia sp!, {r3, r14}
;The first item in pxCurrentTCB is the task top of stack.
ldr r1, [r3]
ldr r0, [r1]
;Pop the core registers.
ldmia r0!, {r4-r11, r14}
;Is the task using the FPU context? If so, pop the high vfp registers too.
tst r14, #0x10
it eq
vldmiaeq r0!, {s16-s31}
msr psp, r0
bx r14
.size PendSV_Handler, $-PendSV_Handler
.endsec
;-----------------------------------------------------------
.section .text
.thumb
.align 4
SVC_Handler: .type func
;Get the location of the current TCB.
ldr r3, =pxCurrentTCB
ldr r1, [r3]
ldr r0, [r1]
;Pop the core registers.
ldmia r0!, {r4-r11, r14}
msr psp, r0
mov r0, #0
msr basepri, r0
bx r14
.size SVC_Handler, $-SVC_Handler
.endsec
;-----------------------------------------------------------
.section .text
.thumb
.align 4
vPortStartFirstTask .type func
;Use the NVIC offset register to locate the stack.
ldr r0, =0xE000ED08
ldr r0, [r0]
ldr r0, [r0]
;Set the msp back to the start of the stack.
msr msp, r0
;Call SVC to start the first task.
cpsie i
svc 0
.size vPortStartFirstTask, $-vPortStartFirstTask
.endsec
;-----------------------------------------------------------
.section .text
.thumb
.align 4
vPortEnableVFP .type func
;The FPU enable bits are in the CPACR.
ldr r0, =0xE000ED88
ldr r1, [r0]
;Enable CP10 and CP11 coprocessors, then save back.
orr r1, r1, #( 0xf << 20 )
str r1, [r0]
bx r14
.size vPortEnableVFP, $-vPortEnableVFP
.endsec
.end

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Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/FreeRTOS_Source/portable/Tasking/ARM_CM4F/portmacro.h
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/*
FreeRTOS V7.1.0 - Copyright (C) 2011 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!
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
#ifndef PORTMACRO_H
#define PORTMACRO_H
#ifdef __cplusplus
extern "C" {
#endif
/*-----------------------------------------------------------
* Port specific definitions.
*
* The settings in this file configure FreeRTOS correctly for the
* given hardware and compiler.
*
* These settings should not be altered.
*-----------------------------------------------------------
*/
/* Type definitions. */
#define portCHAR char
#define portFLOAT float
#define portDOUBLE double
#define portLONG long
#define portSHORT short
#define portSTACK_TYPE unsigned portLONG
#define portBASE_TYPE long
#if( configUSE_16_BIT_TICKS == 1 )
typedef unsigned portSHORT portTickType;
#define portMAX_DELAY ( portTickType ) 0xffff
#else
typedef unsigned portLONG portTickType;
#define portMAX_DELAY ( portTickType ) 0xffffffff
#endif
/*-----------------------------------------------------------*/
/* Architecture specifics. */
#define portSTACK_GROWTH ( -1 )
#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )
#define portBYTE_ALIGNMENT 8
/*-----------------------------------------------------------*/
/* Scheduler utilities. */
extern void vPortYieldFromISR( void );
#define portYIELD() vPortYieldFromISR()
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) vPortYieldFromISR()
/*-----------------------------------------------------------*/
/* Critical section management. */
/*
* Set basepri to portMAX_SYSCALL_INTERRUPT_PRIORITY without effecting other
* registers. r0 is clobbered.
*/
#define portSET_INTERRUPT_MASK() __set_BASEPRI( configMAX_SYSCALL_INTERRUPT_PRIORITY )
/*
* Set basepri back to 0 without effective other registers.
* r0 is clobbered.
*/
#define portCLEAR_INTERRUPT_MASK() __set_BASEPRI( 0 )
#define portSET_INTERRUPT_MASK_FROM_ISR() 0;portSET_INTERRUPT_MASK()
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) portCLEAR_INTERRUPT_MASK();(void)x
extern void vPortEnterCritical( void );
extern void vPortExitCritical( void );
#define portDISABLE_INTERRUPTS() portSET_INTERRUPT_MASK()
#define portENABLE_INTERRUPTS() portCLEAR_INTERRUPT_MASK()
#define portENTER_CRITICAL() vPortEnterCritical()
#define portEXIT_CRITICAL() vPortExitCritical()
/*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portNOP()
#ifdef __cplusplus
}
#endif
#endif /* PORTMACRO_H */

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Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/RTOSDemo.lsl
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// TASKING VX-toolset for ARM
// Project linker script file
//
#if defined(__PROC_XMC4500X1024__)
#include "xmc45xx.lsl"
#else
#include <device.lsl>
#endif

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Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/Startup/Infineon/XMC4500/cstart_XMC4500.c
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/*
** @(#)cstart.c 1.8 $E%
**
** Copyright 1997-2012 Altium BV *
**
** DESCRIPTION:
**
** The system startup code initializes the processor's registers
** and the application C variables.
**
*/
#pragma nomisrac
#pragma profiling off /* prevent profiling information on cstart */
#pragma optimize abcefgIJKlopRsUy /* preset optimization level */
#pragma tradeoff 4 /* preset tradeoff level */
#pragma runtime BCMSZ /* disable runtime error checking for cstart */
#pragma warning 750 /* do not warn about unsaved registers */
#pragma section .text=cstart /* use: .text.cstart as the section name */
#pragma alias Reset_Handler = _START /* requirement for CMSIS */
#pragma extern Reset_Handler /* required for mil-linking with CMSIS */
#include <stdlib.h>
#include <dbg.h>
#define VTOR (*(volatile unsigned int *)0xE000ED08)
#define PREF_PCON (*(volatile unsigned int *)0x58004000)
#define SCU_GCU_PEEN (*(volatile unsigned int *)0x5000413C)
#define SCU_GCU_PEFLAG (*(volatile unsigned int *)0x50004150)
extern unsigned char _lc_ub_stack[];
extern unsigned char _lc_vtor_value[];
#pragma weak exit
#pragma extern _Exit
#pragma extern main
extern int main( int argc, char *argv[] );
extern void SystemInit( void );
extern void __init( void );
#if __PROF_ENABLE__
extern void __prof_init( void );
#endif
#ifdef __POSIX__
extern void * _posix_boot_stack_top;
extern int posix_main( void );
#endif
#ifdef __USE_ARGC_ARGV
#ifndef __ARGCV_BUFSIZE
#define __ARGCV_BUFSIZE 256
#endif
static char argcv[__ARGCV_BUFSIZE];
#endif
void __interrupt() __frame() _START( void )
{
PREF_PCON |= 0x00010000; /* Disable Branch prediction */
SCU_GCU_PEFLAG =0xFFFFFFFF; /* Clear existing parity errors if any */
SCU_GCU_PEEN = 0; /* Disable parity */
/*
* Anticipate possible ROM/RAM remapping
* by loading the 'real' program address.
*/
__remap_pc();
/*
* Initialize stack pointer.
*/
__setsp( _lc_ub_stack );
/*
* Call a user function which initializes hardware,
* such as ROM/RAM re-mapping or MMU configuration.
*/
SystemInit();
/*
* Copy initialized sections from ROM to RAM
* and clear uninitialized data sections in RAM.
*/
__init();
__asm( "_cptable_handled:" ); /* symbol may be used by debugger */
/*
* Load VTOR register with the actual vector table
* start address
*/
VTOR = (unsigned int)_lc_vtor_value;
#ifdef __POSIX__
__setsp( _posix_boot_stack_top );
#endif
#if __PROF_ENABLE__
__prof_init();
#endif
#ifdef __POSIX__
exit( posix_main() );
#elif defined __USE_ARGC_ARGV
exit( main( _argcv( argcv, __ARGCV_BUFSIZE ), (char **)argcv ) );
#else
exit( main( 0, NULL ) );
#endif
return;
}

419
Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/Startup/Infineon/XMC4500/system_XMC4500.c
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/******************************************************************************
* @file system_XMC4500.c
* @brief Device specific initialization for the XMC4500-Series according to CMSIS
* @version V2.2
* @date 20. January 2012
*
* @note
* Copyright (C) 2011 Infineon Technologies AG. All rights reserved.
*
* @par
* Infineon Technologies AG (Infineon) is supplying this software for use with Infineon’s microcontrollers.
* This file can be freely distributed within development tools that are supporting such microcontrollers.
*
* @par
* 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.
* INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
*
*
******************************************************************************/
#include "system_XMC4500.h"
#include <XMC4500.h>
/*----------------------------------------------------------------------------
Define clocks is located in System_XMC4500.h
*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
Clock Variable definitions
*----------------------------------------------------------------------------*/
/*!< System Clock Frequency (Core Clock)*/
uint32_t SystemCoreClock = CLOCK_OSC_HP;
/*----------------------------------------------------------------------------
Keil pragma to prevent warnings
*----------------------------------------------------------------------------*/
#if defined(__ARMCC_VERSION)
#pragma diag_suppress 177
#endif
/*
//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------
*/
/*--------------------- Watchdog Configuration -------------------------------
//
// <e> Watchdog Configuration
// <o1.0> Disable Watchdog
//
// </e>
*/
#define WDT_SETUP 1
#define WDTENB_nVal 0x00000001
/*--------------------- CLOCK Configuration -------------------------------
//
// <e> Main Clock Configuration
// <o1.0..1> CPU clock divider
// <0=> fCPU = fSYS
// <1=> fCPU = fSYS / 2
// <o2.0..1> Peripheral Bus clock divider
// <0=> fPB = fCPU
// <1=> fPB = fCPU / 2
// <o3.0..1> CCU Bus clock divider
// <0=> fCCU = fCPU
// <1=> fCCU = fCPU / 2
//
// </e>
//
*/
#define SCU_CLOCK_SETUP 1
#define SCU_CPUCLKCR_DIV 0x00000000
#define SCU_PBCLKCR_DIV 0x00000000
#define SCU_CCUCLKCR_DIV 0x00000000
/*--------------------- USB CLOCK Configuration ---------------------------
//
// <e> USB Clock Configuration
//
// </e>
//
*/
#define SCU_USB_CLOCK_SETUP 0
/*--------------------- CLOCKOUT Configuration -------------------------------
//
// <e> Clock OUT Configuration
// <o1.0..1> Clockout Source Selection
// <0=> System Clock
// <2=> USB Clock
// <3=> Divided value of PLL Clock
// <o2.0..1> Clockout Pin Selection
// <0=> P1.15
// <1=> P0.8
//
//
// </e>
//
*/
#define SCU_CLOCKOUT_SETUP 0 // recommended to keep disabled
#define SCU_CLOCKOUT_SOURCE 0x00000000
#define SCU_CLOCKOUT_PIN 0x00000000
/*----------------------------------------------------------------------------
static functions declarations
*----------------------------------------------------------------------------*/
#if (SCU_CLOCK_SETUP == 1)
static int SystemClockSetup(void);
#endif
#if (SCU_USB_CLOCK_SETUP == 1)
static void USBClockSetup(void);
#endif
/**
* @brief Setup the microcontroller system.
* Initialize the PLL and update the
* SystemCoreClock variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Setup the WDT */
#if (WDT_SETUP == 1)
WDT->CTR &= ~WDTENB_nVal;
#endif
#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
SCB->CPACR |= ((3UL << 10*2) | /* set CP10 Full Access */
(3UL << 11*2) ); /* set CP11 Full Access */
#endif
/* Disable branch prediction - PCON.PBS = 1 */
PREF->PCON |= (PREF_PCON_PBS_Msk);
/* Enable unaligned memory access - SCB_CCR.UNALIGN_TRP = 0 */
SCB->CCR &= ~(SCB_CCR_UNALIGN_TRP_Msk);
/* Setup the clockout */
/* README README README README README README README README README README */
/*
* Please use the CLOCKOUT feature with diligence. Use this only if you know
* what you are doing.
*
* You must be aware that the settings below can potentially be in conflict
* with DAVE code generation engine preferences.
*
* Even worse, the setting below configures the ports as output ports while in
* reality, the board on which this chip is mounted may have a source driving
* the ports.
*
* So use this feature only when you are absolutely sure that the port must
* indeed be configured as an output AND you are NOT linking this startup code
* with code that was generated by DAVE code engine.
*/
#if (SCU_CLOCKOUT_SETUP == 1)
SCU_CLK->EXTCLKCR |= SCU_CLOCKOUT_SOURCE;
if (SCU_CLOCKOUT_PIN) {
PORT0->IOCR8 = 0x00000088; /*P0.8 --> ALT1 select + HWSEL */
PORT0->HWSEL &= (~PORT0_HWSEL_HW8_Msk);
}
else PORT1->IOCR12 = 0x88000000; /*P1.15--> ALT1 select */
#endif
/* Setup the System clock */
#if (SCU_CLOCK_SETUP == 1)
SystemClockSetup();
#endif
/* Setup the USB PL */
#if (SCU_USB_CLOCK_SETUP == 1)
USBClockSetup();
#endif
}
/**
* @brief Update SystemCoreClock according to Clock Register Values
* @note -
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
/*----------------------------------------------------------------------------
Clock Variable definitions
*----------------------------------------------------------------------------*/
SystemCoreClock = SYSTEM_FREQUENCY;/*!< System Clock Frequency (Core Clock)*/
}
/**
* @brief -
* @note -
* @param None
* @retval None
*/
#if (SCU_CLOCK_SETUP == 1)
static int SystemClockSetup(void)
{
/* enable PLL first */
SCU_PLL->PLLCON0 &= ~(SCU_PLL_PLLCON0_VCOPWD_Msk |
SCU_PLL_PLLCON0_PLLPWD_Msk);
/* Enable OSC_HP */
if (SCU_PLL_CLOCK_INPUT == SCU_CLOCK_CRYSTAL)
{
/* Enable the OSC_HP*/
SCU_OSC->OSCHPCTRL = (OSC_HP_MODE<<4);
/* Setup OSC WDG devider */
SCU_OSC->OSCHPCTRL |= (OSCHPWDGDIV<<16);
/* Select external OSC as PLL input */
SCU_PLL->PLLCON2 &= ~SCU_PLL_PLLCON2_PINSEL_Msk;
/* Restart OSC Watchdog */
SCU_PLL->PLLCON0 &= ~SCU_PLL_PLLCON0_OSCRES_Msk;
do
{
; /* here a timeout need to be added */
}while(!( (SCU_PLL->PLLSTAT) &
(SCU_PLL_PLLSTAT_PLLHV_Msk | SCU_PLL_PLLSTAT_PLLLV_Msk |
SCU_PLL_PLLSTAT_PLLSP_Msk)
)
);
}
/* Setup Main PLL */
/* Select FOFI as system clock */
if(SCU_CLK->SYSCLKCR != 0X000000)
SCU_CLK->SYSCLKCR = 0x00000000; /*Select FOFI*/
/* Go to bypass the Main PLL */
SCU_PLL->PLLCON0 |= SCU_PLL_PLLCON0_VCOBYP_Msk;
/* disconnect OSC_HP to PLL */
SCU_PLL->PLLCON0 |= SCU_PLL_PLLCON0_FINDIS_Msk;
/* Setup devider settings for main PLL */
SCU_PLL->PLLCON1 = ((PLL_K1DIV) | (PLL_NDIV<<8) |
(PLL_K2DIV_STEP_1<<16) | (PLL_PDIV<<24));
/* we may have to set OSCDISCDIS */
SCU_PLL->PLLCON0 |= SCU_PLL_PLLCON0_OSCDISCDIS_Msk;
/* connect OSC_HP to PLL */
SCU_PLL->PLLCON0 &= ~SCU_PLL_PLLCON0_FINDIS_Msk;
/* restart PLL Lock detection */
SCU_PLL->PLLCON0 |= SCU_PLL_PLLCON0_RESLD_Msk;
/* wait for PLL Lock */
while (!(SCU_PLL->PLLSTAT & SCU_PLL_PLLSTAT_VCOLOCK_Msk));
/* Go back to the Main PLL */
SCU_PLL->PLLCON0 &= ~SCU_PLL_PLLCON0_VCOBYP_Msk;
/*********************************************************
here we need to setup the system clock divider
*********************************************************/
SCU_CLK->CPUCLKCR = SCU_CPUCLKCR_DIV;
SCU_CLK->PBCLKCR = SCU_PBCLKCR_DIV;
SCU_CLK->CCUCLKCR = SCU_CCUCLKCR_DIV;
/* Switch system clock to PLL */
SCU_CLK->SYSCLKCR |= 0x00010000;
/*********************************************************
here the ramp up of the system clock starts
*********************************************************/
/* Delay for next K2 step ~50µs */
/********************************/
/* Set reload register */
SysTick->LOAD = ((1250+100) & SysTick_LOAD_RELOAD_Msk) - 1;
/* Load the SysTick Counter Value */
SysTick->VAL = 0;
/* Enable SysTick IRQ and SysTick Timer */
SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
SysTick_CTRL_ENABLE_Msk;
/* wait for ~50µs */
while (SysTick->VAL >= 100);
/* Stop SysTick Timer */
SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;
/********************************/
/* Setup devider settings for main PLL */
SCU_PLL->PLLCON1 = ((PLL_K1DIV) | (PLL_NDIV<<8) |
(PLL_K2DIV_STEP_2<<16) | (PLL_PDIV<<24));
/* Delay for next K2 step ~50µs */
/********************************/
SysTick->LOAD = ((3000+100) & SysTick_LOAD_RELOAD_Msk) - 1;
/* Load the SysTick Counter Value */
SysTick->VAL = 0;
/* Enable SysTick IRQ and SysTick Timer */
SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk;
/* Wait for ~50µs */
while (SysTick->VAL >= 100);
/* Stop SysTick Timer */
SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;
/********************************/
/* Setup devider settings for main PLL */
SCU_PLL->PLLCON1 = ((PLL_K1DIV) | (PLL_NDIV<<8) |
(PLL_K2DIV_STEP_3<<16) | (PLL_PDIV<<24));
/* Delay for next K2 step ~50µs */
/********************************/
SysTick->LOAD = ((4800+100) & SysTick_LOAD_RELOAD_Msk) - 1;
/* Load the SysTick Counter Value */
SysTick->VAL = 0;
/* Enable SysTick IRQ and SysTick Timer */
SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk;
/* Wait for ~50µs */
while (SysTick->VAL >= 100);
/* Stop SysTick Timer */
SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;
/********************************/
/* Setup devider settings for main PLL */
SCU_PLL->PLLCON1 = ((PLL_K1DIV) | (PLL_NDIV<<8) | (PLL_K2DIV<<16) |
(PLL_PDIV<<24));
/* clear request for System OCS Watchdog Trap and System VCO Lock Trap */
SCU_TRAP->TRAPCLR = SCU_TRAP_TRAPCLR_SOSCWDGT_Msk |
SCU_TRAP_TRAPCLR_SVCOLCKT_Msk;
return(1);
}
#endif
/**
* @brief -
* @note -
* @param None
* @retval None
*/
#if(SCU_USB_CLOCK_SETUP == 1)
static void USBClockSetup(void)
{
/* enable PLL first */
SCU_PLL->USBPLLCON &= ~(SCU_PLL_USBPLLCON_VCOPWD_Msk |
SCU_PLL_USBPLLCON_PLLPWD_Msk);
/* check and if not already running enable OSC_HP */
if(!((SCU_PLL->PLLSTAT) &
(SCU_PLL_PLLSTAT_PLLHV_Msk |
SCU_PLL_PLLSTAT_PLLLV_Msk |SCU_PLL_PLLSTAT_PLLSP_Msk)))
{
if (SCU_PLL_CLOCK_INPUT == SCU_CLOCK_CRYSTAL)
{
SCU_OSC->OSCHPCTRL = (OSC_HP_MODE<<4); /*enable the OSC_HP*/
/* setup OSC WDG devider */
SCU_OSC->OSCHPCTRL |= (OSCHPWDGDIV<<16);
/* select external OSC as PLL input */
SCU_PLL->PLLCON2 &= ~SCU_PLL_PLLCON2_PINSEL_Msk;
/* restart OSC Watchdog */
SCU_PLL->PLLCON0 &= ~SCU_PLL_PLLCON0_OSCRES_Msk;
do
{
; /* here a timeout need to be added */
}while(!((SCU_PLL->PLLSTAT) & (SCU_PLL_PLLSTAT_PLLHV_Msk |
SCU_PLL_PLLSTAT_PLLLV_Msk |SCU_PLL_PLLSTAT_PLLSP_Msk)));
}
}
/* Setup USB PLL */
/* Go to bypass the Main PLL */
SCU_PLL->USBPLLCON |= SCU_PLL_USBPLLCON_VCOBYP_Msk;
/* disconnect OSC_FI to PLL */
SCU_PLL->USBPLLCON |= SCU_PLL_USBPLLCON_FINDIS_Msk;
/* Setup devider settings for main PLL */
SCU_PLL->USBPLLCON = ((USBPLL_NDIV<<8) | (USBPLL_PDIV<<24));
/* we may have to set OSCDISCDIS */
SCU_PLL->USBPLLCON |= SCU_PLL_USBPLLCON_OSCDISCDIS_Msk;
/* connect OSC_FI to PLL */
SCU_PLL->USBPLLCON &= ~SCU_PLL_USBPLLCON_FINDIS_Msk;
/* restart PLL Lock detection */
SCU_PLL->USBPLLCON |= SCU_PLL_USBPLLCON_RESLD_Msk;
/* wait for PLL Lock */
while (!(SCU_PLL->USBPLLSTAT & SCU_PLL_USBPLLSTAT_VCOLOCK_Msk));
}
#endif

223
Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/main.c
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/*
FreeRTOS V7.1.0 - Copyright (C) 2011 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!
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
/******************************************************************************
* This project provides two demo applications. A simple blinky style project,
* and a more comprehensive test and demo application. The
* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting (defined in this file) is used to
* select between the two. The simply blinky demo is implemented and described
* in main_blinky.c. The more comprehensive test and demo application is
* implemented and described in main_full.c.
*
* This file implements the code that is not demo specific, including the
* hardware setup and FreeRTOS hook functions.
*
*
* Additional code:
*
* This demo does not contain a non-kernel interrupt service routine that
* can be used as an example for application writers to use as a reference.
* Therefore, the framework of a dummy (not installed) handler is provided
* in this file. The dummy function is called Dummy_IRQHandler(). Please
* ensure to read the comments in the function itself, but more importantly,
* the notes on the function contained on the documentation page for this demo
* that is found on the FreeRTOS.org web site.
*/
/* Standard includes. */
#include <stdio.h>
/* Kernel includes. */
#include "FreeRTOS.h"
#include "task.h"
/* Hardware includes. */
#include "XMC4500.h"
#include "System_XMC4500.h"
/* Set mainCREATE_SIMPLE_BLINKY_DEMO_ONLY to one to run the simple blinky demo,
or 0 to run the more comprehensive test and demo application. */
#define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 0
/*-----------------------------------------------------------*/
/*
* Set up the hardware ready to run this demo.
*/
static void prvSetupHardware( void );
/*
* main_blinky() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
* main_full() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
*/
extern void main_blinky( void );
extern void main_full( void );
/*-----------------------------------------------------------*/
int main( void )
{
/* Prepare the hardware to run this demo. */
prvSetupHardware();
/* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is described at the top
of this file. */
#if mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1
{
main_blinky();
}
#else
{
main_full();
}
#endif
return 0;
}
/*-----------------------------------------------------------*/
static void prvSetupHardware( void )
{
extern void SystemCoreClockUpdate( void );
/* Ensure SystemCoreClock variable is set. */
SystemCoreClockUpdate();
/* Configure pin P3.9 for the LED. */
PORT3->IOCR8 = 0x00008000;
/* Ensure all priority bits are assigned as preemption priority bits. */
NVIC_SetPriorityGrouping( 0 );
}
/*-----------------------------------------------------------*/
void vApplicationMallocFailedHook( void )
{
/* vApplicationMallocFailedHook() will only be called if
configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h. It is a hook
function that will get called if a call to pvPortMalloc() fails.
pvPortMalloc() is called internally by the kernel whenever a task, queue,
timer or semaphore is created. It is also called by various parts of the
demo application. If heap_1.c or heap_2.c are used, then the size of the
heap available to pvPortMalloc() is defined by configTOTAL_HEAP_SIZE in
FreeRTOSConfig.h, and the xPortGetFreeHeapSize() API function can be used
to query the size of free heap space that remains (although it does not
provide information on how the remaining heap might be fragmented). */
taskDISABLE_INTERRUPTS();
for( ;; );
}
/*-----------------------------------------------------------*/
void vApplicationIdleHook( void )
{
/* vApplicationIdleHook() will only be called if configUSE_IDLE_HOOK is set
to 1 in FreeRTOSConfig.h. It will be called on each iteration of the idle
task. It is essential that code added to this hook function never attempts
to block in any way (for example, call xQueueReceive() with a block time
specified, or call vTaskDelay()). If the application makes use of the
vTaskDelete() API function (as this demo application does) then it is also
important that vApplicationIdleHook() is permitted to return to its calling
function, because it is the responsibility of the idle task to clean up
memory allocated by the kernel to any task that has since been deleted. */
}
/*-----------------------------------------------------------*/
void vApplicationStackOverflowHook( xTaskHandle pxTask, signed char *pcTaskName )
{
( void ) pcTaskName;
( void ) pxTask;
/* Run time stack overflow checking is performed if
configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
function is called if a stack overflow is detected. */
taskDISABLE_INTERRUPTS();
for( ;; );
}
/*-----------------------------------------------------------*/
void vApplicationTickHook( void )
{
/* This function will be called by each tick interrupt if
configUSE_TICK_HOOK is set to 1 in FreeRTOSConfig.h. User code can be
added here, but the tick hook is called from an interrupt context, so
code must not attempt to block, and only the interrupt safe FreeRTOS API
functions can be used (those that end in FromISR()). */
}
/*-----------------------------------------------------------*/
#ifdef JUST_AN_EXAMPLE_ISR
void Dummy_IRQHandler(void)
{
long lHigherPriorityTaskWoken = pdFALSE;
/* Clear the interrupt if necessary. */
Dummy_ClearITPendingBit();
/* This interrupt does nothing more than demonstrate how to synchronise a
task with an interrupt. A semaphore is used for this purpose. Note
lHigherPriorityTaskWoken is initialised to zero. */
xSemaphoreGiveFromISR( xTestSemaphore, &lHigherPriorityTaskWoken );
/* If there was a task that was blocked on the semaphore, and giving the
semaphore caused the task to unblock, and the unblocked task has a priority
higher than the current Running state task (the task that this interrupt
interrupted), then lHigherPriorityTaskWoken will have been set to pdTRUE
internally within xSemaphoreGiveFromISR(). Passing pdTRUE into the
portEND_SWITCHING_ISR() macro will result in a context switch being pended to
ensure this interrupt returns directly to the unblocked, higher priority,
task. Passing pdFALSE into portEND_SWITCHING_ISR() has no effect. */
portEND_SWITCHING_ISR( lHigherPriorityTaskWoken );
}
#endif /* JUST_AN_EXAMPLE_ISR */

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Demo/CORTEX_M4F_Infineon_XMC4500_Tasking/main_blinky.c
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/*
FreeRTOS V7.1.0 - Copyright (C) 2011 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!
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
/******************************************************************************
* NOTE 1: This project provides two demo applications. A simple blinky style
* project, and a more comprehensive test and demo application. The
* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting in main.c is used to select
* between the two. See the notes on using mainCREATE_SIMPLE_BLINKY_DEMO_ONLY
* in main.c. This file implements the simply blinky style version.
*
* NOTE 2: This file only contains the source code that is specific to the
* basic demo. Generic functions, such FreeRTOS hook functions, and functions
* required to configure the hardware, are defined in main.c.
******************************************************************************
*
* main_blinky() creates one queue, and two tasks. It then starts the
* scheduler.
*
* The Queue Send Task:
* The queue send task is implemented by the prvQueueSendTask() function in
* this file. prvQueueSendTask() sits in a loop that causes it to repeatedly
* block for 200 milliseconds, before sending the value 100 to the queue that
* was created within main_blinky(). Once the value is sent, the task loops
* back around to block for another 200 milliseconds.
*
* The Queue Receive Task:
* The queue receive task is implemented by the prvQueueReceiveTask() function
* in this file. prvQueueReceiveTask() sits in a loop where it repeatedly
* blocks on attempts to read data from the queue that was created within
* main_blinky(). When data is received, the task checks the value of the
* data, and if the value equals the expected 100, toggles the LED. The 'block
* time' parameter passed to the queue receive function specifies that the
* task should be held in the Blocked state indefinitely to wait for data to
* be available on the queue. The queue receive task will only leave the
* Blocked state when the queue send task writes to the queue. As the queue
* send task writes to the queue every 200 milliseconds, the queue receive
* task leaves the Blocked state every 200 milliseconds, and therefore toggles
* the LED every 200 milliseconds.
*/
/* Standard includes. */
#include <stdio.h>
/* Kernel includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "semphr.h"
/* Hardware includes. */
#include "XMC4500.h"
#include "System_XMC4500.h"
/* Priorities at which the tasks are created. */
#define mainQUEUE_RECEIVE_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
#define mainQUEUE_SEND_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
/* The rate at which data is sent to the queue. The 200ms value is converted
to ticks using the portTICK_RATE_MS constant. */
#define mainQUEUE_SEND_FREQUENCY_MS ( 200 / portTICK_RATE_MS )
/* The number of items the queue can hold. This is 1 as the receive task
will remove items as they are added, meaning the send task should always find
the queue empty. */
#define mainQUEUE_LENGTH ( 1 )
/* Values passed to the two tasks just to check the task parameter
functionality. */
#define mainQUEUE_SEND_PARAMETER ( 0x1111UL )
#define mainQUEUE_RECEIVE_PARAMETER ( 0x22UL )
/* To toggle the single LED */
#define mainTOGGLE_LED() ( PORT3->OMR = 0x02000200 )
/*-----------------------------------------------------------*/
/*
* The tasks as described in the comments at the top of this file.
*/
static void prvQueueReceiveTask( void *pvParameters );
static void prvQueueSendTask( void *pvParameters );
/*
* Called by main() to create the simply blinky style application if
* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
*/
void main_blinky( void );
/*
* The hardware only has a single LED. Simply toggle it.
*/
extern void vMainToggleLED( void );
/*-----------------------------------------------------------*/
/* The queue used by both tasks. */
static xQueueHandle xQueue = NULL;
/*-----------------------------------------------------------*/
void main_blinky( void )
{
/* Create the queue. */
xQueue = xQueueCreate( mainQUEUE_LENGTH, sizeof( unsigned long ) );
if( xQueue != NULL )
{
/* Start the two tasks as described in the comments at the top of this
file. */
xTaskCreate( prvQueueReceiveTask, /* The function that implements the task. */
( signed char * ) "Rx", /* The text name assigned to the task - for debug only as it is not used by the kernel. */
configMINIMAL_STACK_SIZE, /* The size of the stack to allocate to the task. */
( void * ) mainQUEUE_RECEIVE_PARAMETER, /* The parameter passed to the task - just to check the functionality. */
mainQUEUE_RECEIVE_TASK_PRIORITY, /* The priority assigned to the task. */
NULL ); /* The task handle is not required, so NULL is passed. */
xTaskCreate( prvQueueSendTask, ( signed char * ) "TX", configMINIMAL_STACK_SIZE, ( void * ) mainQUEUE_SEND_PARAMETER, mainQUEUE_SEND_TASK_PRIORITY, NULL );
/* Start the tasks and timer running. */
vTaskStartScheduler();
}
/* If all is well, the scheduler will now be running, and the following
line will never be reached. If the following line does execute, then
there was insufficient FreeRTOS heap memory available for the idle and/or
timer tasks to be created. See the memory management section on the
FreeRTOS web site for more details. */
for( ;; );
}
/*-----------------------------------------------------------*/
static void prvQueueSendTask( void *pvParameters )
{
portTickType xNextWakeTime;
const unsigned long ulValueToSend = 100UL;
/* Check the task parameter is as expected. */
configASSERT( ( ( unsigned long ) pvParameters ) == mainQUEUE_SEND_PARAMETER );
/* Initialise xNextWakeTime - this only needs to be done once. */
xNextWakeTime = xTaskGetTickCount();
for( ;; )
{
/* Place this task in the blocked state until it is time to run again.
The block time is specified in ticks, the constant used converts ticks
to ms. While in the Blocked state this task will not consume any CPU
time. */
vTaskDelayUntil( &xNextWakeTime, mainQUEUE_SEND_FREQUENCY_MS );
/* Send to the queue - causing the queue receive task to unblock and
toggle the LED. 0 is used as the block time so the sending operation
will not block - it shouldn't need to block as the queue should always
be empty at this point in the code. */
xQueueSend( xQueue, &ulValueToSend, 0U );
}
}
/*-----------------------------------------------------------*/
static void prvQueueReceiveTask( void *pvParameters )
{
unsigned long ulReceivedValue;
/* Check the task parameter is as expected. */
configASSERT( ( ( unsigned long ) pvParameters ) == mainQUEUE_RECEIVE_PARAMETER );
for( ;; )
{
/* Wait until something arrives in the queue - this task will block
indefinitely provided INCLUDE_vTaskSuspend is set to 1 in
FreeRTOSConfig.h. */
xQueueReceive( xQueue, &ulReceivedValue, portMAX_DELAY );
/* To get here something must have been received from the queue, but
is it the expected value? If it is, toggle the LED. */
if( ulReceivedValue == 100UL )
{
mainTOGGLE_LED();
ulReceivedValue = 0U;
}
}
}
/*-----------------------------------------------------------*/

664
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/*
FreeRTOS V7.1.0 - Copyright (C) 2011 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!
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
/******************************************************************************
* NOTE 1: This project provides two demo applications. A simple blinky style
* project, and a more comprehensive test and demo application. The
* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting in main.c is used to select
* between the two. See the notes on using mainCREATE_SIMPLE_BLINKY_DEMO_ONLY
* in main.c. This file implements the comprehensive test and demo version.
*
* NOTE 2: This file only contains the source code that is specific to the
* full demo. Generic functions, such FreeRTOS hook functions, and functions
* required to configure the hardware, are defined in main.c.
******************************************************************************
*
* main_full() creates all the demo application tasks and a software timer, then
* starts the scheduler. The web documentation provides more details of the
* standard demo application tasks, which provide no particular functionality,
* but do provide a good example of how to use the FreeRTOS API.
*
* In addition to the standard demo tasks, the following tasks and tests are
* defined and/or created within this file:
*
* "Reg test" tasks - These fill both the core and floating point registers with
* known values, then check that each register maintains its expected value for
* the lifetime of the task. Each task uses a different set of values. The reg
* test tasks execute with a very low priority, so get preempted very
* frequently. A register containing an unexpected value is indicative of an
* error in the context switching mechanism.
*
* "Check" timer - The check software timer period is initially set to three
* seconds. The callback function associated with the check software timer
* checks that all the standard demo tasks, and the register check tasks, are
* not only still executing, but are executing without reporting any errors. If
* the check software timer discovers that a task has either stalled, or
* reported an error, then it changes its own execution period from the initial
* three seconds, to just 200ms. The check software timer callback function
* also toggles the single LED each time it is called. This provides a visual
* indication of the system status: If the LED toggles every three seconds,
* then no issues have been discovered. If the LED toggles every 200ms, then
* an issue has been discovered with at least one task.
*/
/* Standard includes. */
#include <stdio.h>
/* Kernel includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "timers.h"
#include "semphr.h"
/* Standard demo application includes. */
#include "flop.h"
#include "integer.h"
#include "PollQ.h"
#include "semtest.h"
#include "dynamic.h"
#include "BlockQ.h"
#include "blocktim.h"
#include "countsem.h"
#include "GenQTest.h"
#include "recmutex.h"
#include "death.h"
/* Hardware includes. */
#include "XMC4500.h"
#include "System_XMC4500.h"
/* Priorities for the demo application tasks. */
#define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 2UL )
#define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1UL )
#define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2UL )
#define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3UL )
#define mainFLOP_TASK_PRIORITY ( tskIDLE_PRIORITY )
/* To toggle the single LED */
#define mainTOGGLE_LED() ( PORT3->OMR = 0x02000200 )
/* A block time of zero simply means "don't block". */
#define mainDONT_BLOCK ( 0UL )
/* The period after which the check timer will expire, in ms, provided no errors
have been reported by any of the standard demo tasks. ms are converted to the
equivalent in ticks using the portTICK_RATE_MS constant. */
#define mainCHECK_TIMER_PERIOD_MS ( 3000UL / portTICK_RATE_MS )
/* The period at which the check timer will expire, in ms, if an error has been
reported in one of the standard demo tasks. ms are converted to the equivalent
in ticks using the portTICK_RATE_MS constant. */
#define mainERROR_CHECK_TIMER_PERIOD_MS ( 200UL / portTICK_RATE_MS )
/*-----------------------------------------------------------*/
/*
* The check timer callback function, as described at the top of this file.
*/
static void prvCheckTimerCallback( xTimerHandle xTimer );
/*
* Register check tasks, and the tasks used to write over and check the contents
* of the FPU registers, as described at the top of this file. The nature of
* these files necessitates that they are written in an assembly file.
*/
static void vRegTest1Task( void *pvParameters );
static void vRegTest2Task( void *pvParameters );
/*-----------------------------------------------------------*/
/* The following two variables are used to communicate the status of the
register check tasks to the check software timer. If the variables keep
incrementing, then the register check tasks has not discovered any errors. If
a variable stops incrementing, then an error has been found. */
volatile unsigned long ulRegTest1LoopCounter = 0UL, ulRegTest2LoopCounter = 0UL;
/*-----------------------------------------------------------*/
void main_full( void )
{
xTimerHandle xCheckTimer = NULL;
/* Start all the other standard demo/test tasks. The have not particular
functionality, but do demonstrate how to use the FreeRTOS API and test the
kernel port. */
vStartIntegerMathTasks( tskIDLE_PRIORITY );
vStartDynamicPriorityTasks();
vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
vCreateBlockTimeTasks();
vStartCountingSemaphoreTasks();
vStartGenericQueueTasks( tskIDLE_PRIORITY );
vStartRecursiveMutexTasks();
vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
vStartMathTasks( mainFLOP_TASK_PRIORITY );
/* Create the register check tasks, as described at the top of this
file */
xTaskCreate( vRegTest1Task, ( signed char * ) "Reg1", configMINIMAL_STACK_SIZE, ( void * ) NULL, tskIDLE_PRIORITY, NULL );
xTaskCreate( vRegTest2Task, ( signed char * ) "Reg2", configMINIMAL_STACK_SIZE, ( void * ) NULL, tskIDLE_PRIORITY, NULL );
/* Create the software timer that performs the 'check' functionality,
as described at the top of this file. */
xCheckTimer = xTimerCreate( ( const signed char * ) "CheckTimer",/* A text name, purely to help debugging. */
( mainCHECK_TIMER_PERIOD_MS ), /* The timer period, in this case 3000ms (3s). */
pdTRUE, /* This is an auto-reload timer, so xAutoReload is set to pdTRUE. */
( void * ) 0, /* The ID is not used, so can be set to anything. */
prvCheckTimerCallback /* The callback function that inspects the status of all the other tasks. */
);
if( xCheckTimer != NULL )
{
xTimerStart( xCheckTimer, mainDONT_BLOCK );
}
/* The set of tasks created by the following function call have to be
created last as they keep account of the number of tasks they expect to see
running. */
vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
/* Start the scheduler. */
vTaskStartScheduler();
/* If all is well, the scheduler will now be running, and the following line
will never be reached. If the following line does execute, then there was
insufficient FreeRTOS heap memory available for the idle and/or timer tasks
to be created. See the memory management section on the FreeRTOS web site
for more details. */
for( ;; );
}
/*-----------------------------------------------------------*/
static void prvCheckTimerCallback( xTimerHandle xTimer )
{
static long lChangedTimerPeriodAlready = pdFALSE;
static unsigned long ulLastRegTest1Value = 0, ulLastRegTest2Value = 0;
unsigned long ulErrorFound = pdFALSE;
/* Check all the demo tasks (other than the flash tasks) to ensure
that they are all still running, and that none have detected an error. */
if( xAreMathsTaskStillRunning() != pdTRUE )
{
ulErrorFound = pdTRUE;
}
if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
{
ulErrorFound = pdTRUE;
}
if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
{
ulErrorFound = pdTRUE;
}
if( xAreBlockingQueuesStillRunning() != pdTRUE )
{
ulErrorFound = pdTRUE;
}
if ( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
{
ulErrorFound = pdTRUE;
}
if ( xAreGenericQueueTasksStillRunning() != pdTRUE )
{
ulErrorFound = pdTRUE;
}
if ( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
{
ulErrorFound = pdTRUE;
}
if( xIsCreateTaskStillRunning() != pdTRUE )
{
ulErrorFound = pdTRUE;
}
if( xArePollingQueuesStillRunning() != pdTRUE )
{
ulErrorFound = pdTRUE;
}
if( xAreSemaphoreTasksStillRunning() != pdTRUE )
{
ulErrorFound = pdTRUE;
}
/* Check that the register test 1 task is still running. */
if( ulLastRegTest1Value == ulRegTest1LoopCounter )
{
ulErrorFound = pdTRUE;
}
ulLastRegTest1Value = ulRegTest1LoopCounter;
/* Check that the register test 2 task is still running. */
if( ulLastRegTest2Value == ulRegTest2LoopCounter )
{
ulErrorFound = pdTRUE;
}
ulLastRegTest2Value = ulRegTest2LoopCounter;
/* Toggle the check LED to give an indication of the system status. If
the LED toggles every mainCHECK_TIMER_PERIOD_MS milliseconds then
everything is ok. A faster toggle indicates an error. */
mainTOGGLE_LED();
/* Have any errors been latch in ulErrorFound? If so, shorten the
period of the check timer to mainERROR_CHECK_TIMER_PERIOD_MS milliseconds.
This will result in an increase in the rate at which mainCHECK_LED
toggles. */
if( ulErrorFound != pdFALSE )
{
if( lChangedTimerPeriodAlready == pdFALSE )
{
lChangedTimerPeriodAlready = pdTRUE;
/* This call to xTimerChangePeriod() uses a zero block time.
Functions called from inside of a timer callback function must
*never* attempt to block. */
xTimerChangePeriod( xTimer, ( mainERROR_CHECK_TIMER_PERIOD_MS ), mainDONT_BLOCK );
}
}
}
/*-----------------------------------------------------------*/
/* This is a naked function. */
static void vRegTest1Task( void *pvParameters )
{
__asm volatile
(
" \n" /* Fill the core registers with known values. */
" mov r0, #100 \n"
" mov r1, #101 \n"
" mov r2, #102 \n"
" mov r3, #103 \n"
" mov r4, #104 \n"
" mov r5, #105 \n"
" mov r6, #106 \n"
" mov r7, #107 \n"
" mov r8, #108 \n"
" mov r9, #109 \n"
" mov r10, #110 \n"
" mov r11, #111 \n"
" mov r12, #112 \n"
" \n"
" vmov d0, r0, r1 \n" /* Fill the VFP registers with known values. */
" vmov d1, r2, r3 \n"
" vmov d2, r4, r5 \n"
" vmov d3, r6, r7 \n"
" vmov d4, r8, r9 \n"
" vmov d5, r10, r11 \n"
" vmov d6, r0, r1 \n"
" vmov d7, r2, r3 \n"
" vmov d8, r4, r5 \n"
" vmov d9, r6, r7 \n"
" vmov d10, r8, r9 \n"
" vmov d11, r10, r11 \n"
" vmov d12, r0, r1 \n"
" vmov d13, r2, r3 \n"
" vmov d14, r4, r5 \n"
" vmov d15, r6, r7 \n"
" \n"
"reg1_loop: \n" /* Check all the VFP registers still contain the values set above." */
" push { r0-r1 } \n" /* First save registers that are clobbered by the test. */
" \n"
" vmov r0, r1, d0 \n"
" cmp r0, #100 \n"
" bne reg1_error_loopf \n"
" cmp r1, #101 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d1 \n"
" cmp r0, #102 \n"
" bne reg1_error_loopf \n"
" cmp r1, #103 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d2 \n"
" cmp r0, #104 \n"
" bne reg1_error_loopf \n"
" cmp r1, #105 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d3 \n"
" cmp r0, #106 \n"
" bne reg1_error_loopf \n"
" cmp r1, #107 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d4 \n"
" cmp r0, #108 \n"
" bne reg1_error_loopf \n"
" cmp r1, #109 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d5 \n"
" cmp r0, #110 \n"
" bne reg1_error_loopf \n"
" cmp r1, #111 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d6 \n"
" cmp r0, #100 \n"
" bne reg1_error_loopf \n"
" cmp r1, #101 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d7 \n"
" cmp r0, #102 \n"
" bne reg1_error_loopf \n"
" cmp r1, #103 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d8 \n"
" cmp r0, #104 \n"
" bne reg1_error_loopf \n"
" cmp r1, #105 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d9 \n"
" cmp r0, #106 \n"
" bne reg1_error_loopf \n"
" cmp r1, #107 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d10 \n"
" cmp r0, #108 \n"
" bne reg1_error_loopf \n"
" cmp r1, #109 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d11 \n"
" cmp r0, #110 \n"
" bne reg1_error_loopf \n"
" cmp r1, #111 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d12 \n"
" cmp r0, #100 \n"
" bne reg1_error_loopf \n"
" cmp r1, #101 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d13 \n"
" cmp r0, #102 \n"
" bne reg1_error_loopf \n"
" cmp r1, #103 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d14 \n"
" cmp r0, #104 \n"
" bne reg1_error_loopf \n"
" cmp r1, #105 \n"
" bne reg1_error_loopf \n"
" vmov r0, r1, d15 \n"
" cmp r0, #106 \n"
" bne reg1_error_loopf \n"
" cmp r1, #107 \n"
" bne reg1_error_loopf \n"
" \n"
" pop {r0-r1} \n" /* Restore the registers that were clobbered by the test. */
" \n"
" b reg1_loopf_pass \n" /* VFP register test passed. Jump to the core register test. */
" \n"
"reg1_error_loopf: \n"
" b reg1_error_loopf \n" /* If this line is hit then a VFP register value was found to be\n incorrect. */
" \n"
"reg1_loopf_pass: \n"
" \n"
" cmp r0, #100 \n"
" bne reg1_error_loop \n"
" cmp r1, #101 \n"
" bne reg1_error_loop \n"
" cmp r2, #102 \n"
" bne reg1_error_loop \n"
" cmp r3, #103 \n"
" bne reg1_error_loop \n"
" cmp r4, #104 \n"
" bne reg1_error_loop \n"
" cmp r5, #105 \n"
" bne reg1_error_loop \n"
" cmp r6, #106 \n"
" bne reg1_error_loop \n"
" cmp r7, #107 \n"
" bne reg1_error_loop \n"
" cmp r8, #108 \n"
" bne reg1_error_loop \n"
" cmp r9, #109 \n"
" bne reg1_error_loop \n"
" cmp r10, #110 \n"
" bne reg1_error_loop \n"
" cmp r11, #111 \n"
" bne reg1_error_loop \n"
" cmp r12, #112 \n"
" bne reg1_error_loop \n"
" \n"
" push { r0-r1 } \n" /* Everything passed, increment the loop counter. */
" ldr r0, =ulRegTest1LoopCounter \n"
" ldr r1, [r0] \n"
" adds r1, r1, #1 \n"
" str r1, [r0] \n"
" pop { r0-r1 } \n"
" \n"
" b reg1_loop \n" /* Start again. */
" \n"
"reg1_error_loop: \n" /* If this line is hit then there was an error in a core register value. */
" b reg1_error_loop \n" /* The loop ensures the loop counter stops incrementing. */
" nop "
);
}
/*-----------------------------------------------------------*/
/* This is a naked function. */
static void vRegTest2Task( void *pvParameters )
{
__asm volatile
(
" mov r0, #-1 \n" /* Set all the core registers to known values. */
" mov r1, #1 \n"
" mov r2, #2 \n"
" mov r3, #3 \n"
" mov r4, #4 \n"
" mov r5, #5 \n"
" mov r6, #6 \n"
" mov r7, #7 \n"
" mov r8, #8 \n"
" mov r9, #9 \n"
" mov r10, #10 \n"
" mov r11, #11 \n"
" mov r12, #12 \n"
" \n"
" vmov d0, r0, r1 \n" /* Set all the VFP to known values. */
" vmov d1, r2, r3 \n"
" vmov d2, r4, r5 \n"
" vmov d3, r6, r7 \n"
" vmov d4, r8, r9 \n"
" vmov d5, r10, r11 \n"
" vmov d6, r0, r1 \n"
" vmov d7, r2, r3 \n"
" vmov d8, r4, r5 \n"
" vmov d9, r6, r7 \n"
" vmov d10, r8, r9 \n"
" vmov d11, r10, r11 \n"
" vmov d12, r0, r1 \n"
" vmov d13, r2, r3 \n"
" vmov d14, r4, r5 \n"
" vmov d15, r6, r7 \n"
" \n"
"reg2_loop: \n"
" \n"
" push { r0-r1 } \n" /* Check all the VFP registers still contain the values set above. */
" vmov r0, r1, d0 \n" /*First save registers that are clobbered by the test. */
" cmp r0, #-1 \n"
" bne reg2_error_loopf \n"
" cmp r1, #1 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d1 \n"
" cmp r0, #2 \n"
" bne reg2_error_loopf \n"
" cmp r1, #3 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d2 \n"
" cmp r0, #4 \n"
" bne reg2_error_loopf \n"
" cmp r1, #5 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d3 \n"
" cmp r0, #6 \n"
" bne reg2_error_loopf \n"
" cmp r1, #7 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d4 \n"
" cmp r0, #8 \n"
" bne reg2_error_loopf \n"
" cmp r1, #9 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d5 \n"
" cmp r0, #10 \n"
" bne reg2_error_loopf \n"
" cmp r1, #11 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d6 \n"
" cmp r0, #-1 \n"
" bne reg2_error_loopf \n"
" cmp r1, #1 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d7 \n"
" cmp r0, #2 \n"
" bne reg2_error_loopf \n"
" cmp r1, #3 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d8 \n"
" cmp r0, #4 \n"
" bne reg2_error_loopf \n"
" cmp r1, #5 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d9 \n"
" cmp r0, #6 \n"
" bne reg2_error_loopf \n"
" cmp r1, #7 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d10 \n"
" cmp r0, #8 \n"
" bne reg2_error_loopf \n"
" cmp r1, #9 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d11 \n"
" cmp r0, #10 \n"
" bne reg2_error_loopf \n"
" cmp r1, #11 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d12 \n"
" cmp r0, #-1 \n"
" bne reg2_error_loopf \n"
" cmp r1, #1 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d13 \n"
" cmp r0, #2 \n"
" bne reg2_error_loopf \n"
" cmp r1, #3 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d14 \n"
" cmp r0, #4 \n"
" bne reg2_error_loopf \n"
" cmp r1, #5 \n"
" bne reg2_error_loopf \n"
" vmov r0, r1, d15 \n"
" cmp r0, #6 \n"
" bne reg2_error_loopf \n"
" cmp r1, #7 \n"
" bne reg2_error_loopf \n"
" \n"
" pop {r0-r1} \n" /* Restore the registers that were clobbered by the test. */
" \n"
" b reg2_loopf_pass \n" /* VFP register test passed. Jump to the core register test. */
" \n"
"reg2_error_loopf: \n"
" b reg2_error_loopf \n" /* If this line is hit then a VFP register value was found to be incorrect. */
" \n"
"reg2_loopf_pass: \n"
" \n"
" cmp r0, #-1 \n"
" bne reg2_error_loop \n"
" cmp r1, #1 \n"
" bne reg2_error_loop \n"
" cmp r2, #2 \n"
" bne reg2_error_loop \n"
" cmp r3, #3 \n"
" bne reg2_error_loop \n"
" cmp r4, #4 \n"
" bne reg2_error_loop \n"
" cmp r5, #5 \n"
" bne reg2_error_loop \n"
" cmp r6, #6 \n"
" bne reg2_error_loop \n"
" cmp r7, #7 \n"
" bne reg2_error_loop \n"
" cmp r8, #8 \n"
" bne reg2_error_loop \n"
" cmp r9, #9 \n"
" bne reg2_error_loop \n"
" cmp r10, #10 \n"
" bne reg2_error_loop \n"
" cmp r11, #11 \n"
" bne reg2_error_loop \n"
" cmp r12, #12 \n"
" bne reg2_error_loop \n"
" \n"
" push { r0-r1 } \n" /* Increment the loop counter to indicate this test is still functioning correctly. */
" ldr r0, =ulRegTest2LoopCounter \n"
" ldr r1, [r0] \n"
" adds r1, r1, #1 \n"
" str r1, [r0] \n"
" pop { r0-r1 } \n"
" \n"
" b reg2_loop \n" /* Start again. */
" \n"
"reg2_error_loop: \n" /* If this line is hit then there was an error in a core register value. */
" b reg2_error_loop \n" /* This loop ensures the loop counter variable stops incrementing. */
" nop \n"
);
}
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