【添加】FreeRTOS Demo
This commit is contained in:
Maofeng
@@ -0,0 +1,239 @@
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/*
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FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd.
|
||||
All rights reserved
|
||||
|
||||
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||||
|
||||
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. Full license text is available on the following
|
||||
link: http://www.freertos.org/a00114.html
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS provides completely free yet professionally developed, *
|
||||
* robust, strictly quality controlled, supported, and cross *
|
||||
* platform software that is more than just the market leader, it *
|
||||
* is the industry's de facto standard. *
|
||||
* *
|
||||
* Help yourself get started quickly while simultaneously helping *
|
||||
* to support the FreeRTOS project by purchasing a FreeRTOS *
|
||||
* tutorial book, reference manual, or both: *
|
||||
* http://www.FreeRTOS.org/Documentation *
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||||
* *
|
||||
***************************************************************************
|
||||
|
||||
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
|
||||
the FAQ page "My application does not run, what could be wrong?". Have you
|
||||
defined configASSERT()?
|
||||
|
||||
http://www.FreeRTOS.org/support - In return for receiving this top quality
|
||||
embedded software for free we request you assist our global community by
|
||||
participating in the support forum.
|
||||
|
||||
http://www.FreeRTOS.org/training - Investing in training allows your team to
|
||||
be as productive as possible as early as possible. Now you can receive
|
||||
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
|
||||
Ltd, and the world's leading authority on the world's leading RTOS.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
||||
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
|
||||
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
|
||||
|
||||
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
|
||||
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
|
||||
licenses offer ticketed support, indemnification and commercial middleware.
|
||||
|
||||
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
|
||||
engineered and independently SIL3 certified version for use in safety and
|
||||
mission critical applications that require provable dependability.
|
||||
|
||||
1 tab == 4 spaces!
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*/
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/*-----------------------------------------------------------
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* Implementation of functions defined in portable.h for the ST STR75x ARM7
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* port.
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*----------------------------------------------------------*/
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/* Library includes. */
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#include "75x_tb.h"
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#include "75x_eic.h"
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/* Scheduler includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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/* Constants required to setup the initial stack. */
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#define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */
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#define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 )
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#define portINSTRUCTION_SIZE ( ( StackType_t ) 4 )
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/* Constants required to handle critical sections. */
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#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
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/* Prescale used on the timer clock when calculating the tick period. */
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#define portPRESCALE 20
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/*-----------------------------------------------------------*/
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/* Setup the TB to generate the tick interrupts. */
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static void prvSetupTimerInterrupt( void );
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/*-----------------------------------------------------------*/
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/*
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* Initialise the stack of a task to look exactly as if a call to
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* portSAVE_CONTEXT had been called.
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*
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* See header file for description.
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*/
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StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
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{
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StackType_t *pxOriginalTOS;
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pxOriginalTOS = pxTopOfStack;
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/* To ensure asserts in tasks.c don't fail, although in this case the assert
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is not really required. */
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pxTopOfStack--;
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/* Setup the initial stack of the task. The stack is set exactly as
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expected by the portRESTORE_CONTEXT() macro. */
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/* First on the stack is the return address - which in this case is the
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start of the task. The offset is added to make the return address appear
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as it would within an IRQ ISR. */
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*pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE;
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0xaaaaaaaa; /* R14 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */
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pxTopOfStack--;
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/* When the task starts is will expect to find the function parameter in
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R0. */
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*pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */
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pxTopOfStack--;
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/* The status register is set for system mode, with interrupts enabled. */
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*pxTopOfStack = ( StackType_t ) portINITIAL_SPSR;
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#ifdef THUMB_INTERWORK
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{
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/* We want the task to start in thumb mode. */
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*pxTopOfStack |= portTHUMB_MODE_BIT;
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}
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#endif
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pxTopOfStack--;
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/* Interrupt flags cannot always be stored on the stack and will
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instead be stored in a variable, which is then saved as part of the
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tasks context. */
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*pxTopOfStack = portNO_CRITICAL_NESTING;
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return pxTopOfStack;
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}
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/*-----------------------------------------------------------*/
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BaseType_t xPortStartScheduler( void )
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{
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extern void vPortISRStartFirstTask( void );
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/* Start the timer that generates the tick ISR. Interrupts are disabled
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here already. */
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prvSetupTimerInterrupt();
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/* Start the first task. */
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vPortISRStartFirstTask();
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/* Should not get here! */
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return 0;
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}
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/*-----------------------------------------------------------*/
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void vPortEndScheduler( void )
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{
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/* It is unlikely that the ARM port will require this function as there
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is nothing to return to. */
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}
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/*-----------------------------------------------------------*/
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static void prvSetupTimerInterrupt( void )
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{
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EIC_IRQInitTypeDef EIC_IRQInitStructure;
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TB_InitTypeDef TB_InitStructure;
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/* Setup the EIC for the TB. */
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EIC_IRQInitStructure.EIC_IRQChannelCmd = ENABLE;
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EIC_IRQInitStructure.EIC_IRQChannel = TB_IRQChannel;
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EIC_IRQInitStructure.EIC_IRQChannelPriority = 1;
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EIC_IRQInit(&EIC_IRQInitStructure);
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/* Setup the TB for the generation of the tick interrupt. */
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TB_InitStructure.TB_Mode = TB_Mode_Timing;
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TB_InitStructure.TB_CounterMode = TB_CounterMode_Down;
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TB_InitStructure.TB_Prescaler = portPRESCALE - 1;
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TB_InitStructure.TB_AutoReload = ( ( configCPU_CLOCK_HZ / portPRESCALE ) / configTICK_RATE_HZ );
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TB_Init(&TB_InitStructure);
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/* Enable TB Update interrupt */
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TB_ITConfig(TB_IT_Update, ENABLE);
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/* Clear TB Update interrupt pending bit */
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TB_ClearITPendingBit(TB_IT_Update);
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/* Enable TB */
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TB_Cmd(ENABLE);
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}
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/*-----------------------------------------------------------*/
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@@ -0,0 +1,224 @@
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/*
|
||||
FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd.
|
||||
All rights reserved
|
||||
|
||||
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||||
|
||||
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. Full license text is available on the following
|
||||
link: http://www.freertos.org/a00114.html
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS provides completely free yet professionally developed, *
|
||||
* robust, strictly quality controlled, supported, and cross *
|
||||
* platform software that is more than just the market leader, it *
|
||||
* is the industry's de facto standard. *
|
||||
* *
|
||||
* Help yourself get started quickly while simultaneously helping *
|
||||
* to support the FreeRTOS project by purchasing a FreeRTOS *
|
||||
* tutorial book, reference manual, or both: *
|
||||
* http://www.FreeRTOS.org/Documentation *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
|
||||
the FAQ page "My application does not run, what could be wrong?". Have you
|
||||
defined configASSERT()?
|
||||
|
||||
http://www.FreeRTOS.org/support - In return for receiving this top quality
|
||||
embedded software for free we request you assist our global community by
|
||||
participating in the support forum.
|
||||
|
||||
http://www.FreeRTOS.org/training - Investing in training allows your team to
|
||||
be as productive as possible as early as possible. Now you can receive
|
||||
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
|
||||
Ltd, and the world's leading authority on the world's leading RTOS.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
||||
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
|
||||
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
|
||||
|
||||
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
|
||||
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
|
||||
licenses offer ticketed support, indemnification and commercial middleware.
|
||||
|
||||
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
|
||||
engineered and independently SIL3 certified version for use in safety and
|
||||
mission critical applications that require provable dependability.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
|
||||
/*-----------------------------------------------------------
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* Components that can be compiled to either ARM or THUMB mode are
|
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* contained in port.c The ISR routines, which can only be compiled
|
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* to ARM mode, are contained in this file.
|
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*----------------------------------------------------------*/
|
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|
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/*
|
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*/
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|
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/* Scheduler includes. */
|
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#include "FreeRTOS.h"
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#include "task.h"
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/* Constants required to handle critical sections. */
|
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#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
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volatile uint32_t ulCriticalNesting = 9999UL;
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/*-----------------------------------------------------------*/
|
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|
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/*
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* The scheduler can only be started from ARM mode, hence the inclusion of this
|
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* function here.
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*/
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void vPortISRStartFirstTask( void );
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/*-----------------------------------------------------------*/
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void vPortISRStartFirstTask( void )
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{
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/* Simply start the scheduler. This is included here as it can only be
|
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called from ARM mode. */
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asm volatile ( \
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"LDR R0, =pxCurrentTCB \n\t" \
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"LDR R0, [R0] \n\t" \
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"LDR LR, [R0] \n\t" \
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\
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/* The critical nesting depth is the first item on the stack. */ \
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/* Load it into the ulCriticalNesting variable. */ \
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"LDR R0, =ulCriticalNesting \n\t" \
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"LDMFD LR!, {R1} \n\t" \
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"STR R1, [R0] \n\t" \
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\
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/* Get the SPSR from the stack. */ \
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"LDMFD LR!, {R0} \n\t" \
|
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"MSR SPSR, R0 \n\t" \
|
||||
\
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||||
/* Restore all system mode registers for the task. */ \
|
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"LDMFD LR, {R0-R14}^ \n\t" \
|
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"NOP \n\t" \
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\
|
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/* Restore the return address. */ \
|
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"LDR LR, [LR, #+60] \n\t" \
|
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\
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/* And return - correcting the offset in the LR to obtain the */ \
|
||||
/* correct address. */ \
|
||||
"SUBS PC, LR, #4 \n\t" \
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortTickISR( void )
|
||||
{
|
||||
/* Increment the RTOS tick count, then look for the highest priority
|
||||
task that is ready to run. */
|
||||
if( xTaskIncrementTick() != pdFALSE )
|
||||
{
|
||||
vTaskSwitchContext();
|
||||
}
|
||||
|
||||
/* Ready for the next interrupt. */
|
||||
TB_ClearITPendingBit( TB_IT_Update );
|
||||
}
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
* The interrupt management utilities can only be called from ARM mode. When
|
||||
* THUMB_INTERWORK is defined the utilities are defined as functions here to
|
||||
* ensure a switch to ARM mode. When THUMB_INTERWORK is not defined then
|
||||
* the utilities are defined as macros in portmacro.h - as per other ports.
|
||||
*/
|
||||
#ifdef THUMB_INTERWORK
|
||||
|
||||
void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
|
||||
void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
|
||||
|
||||
void vPortDisableInterruptsFromThumb( void )
|
||||
{
|
||||
asm volatile (
|
||||
"STMDB SP!, {R0} \n\t" /* Push R0. */
|
||||
"MRS R0, CPSR \n\t" /* Get CPSR. */
|
||||
"ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */
|
||||
"MSR CPSR, R0 \n\t" /* Write back modified value. */
|
||||
"LDMIA SP!, {R0} \n\t" /* Pop R0. */
|
||||
"BX R14" ); /* Return back to thumb. */
|
||||
}
|
||||
|
||||
void vPortEnableInterruptsFromThumb( void )
|
||||
{
|
||||
asm volatile (
|
||||
"STMDB SP!, {R0} \n\t" /* Push R0. */
|
||||
"MRS R0, CPSR \n\t" /* Get CPSR. */
|
||||
"BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */
|
||||
"MSR CPSR, R0 \n\t" /* Write back modified value. */
|
||||
"LDMIA SP!, {R0} \n\t" /* Pop R0. */
|
||||
"BX R14" ); /* Return back to thumb. */
|
||||
}
|
||||
|
||||
#endif /* THUMB_INTERWORK */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortEnterCritical( void )
|
||||
{
|
||||
/* Disable interrupts as per portDISABLE_INTERRUPTS(); */
|
||||
asm volatile (
|
||||
"STMDB SP!, {R0} \n\t" /* Push R0. */
|
||||
"MRS R0, CPSR \n\t" /* Get CPSR. */
|
||||
"ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */
|
||||
"MSR CPSR, R0 \n\t" /* Write back modified value. */
|
||||
"LDMIA SP!, {R0}" ); /* Pop R0. */
|
||||
|
||||
/* Now interrupts are disabled ulCriticalNesting can be accessed
|
||||
directly. Increment ulCriticalNesting to keep a count of how many times
|
||||
portENTER_CRITICAL() has been called. */
|
||||
ulCriticalNesting++;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortExitCritical( void )
|
||||
{
|
||||
if( ulCriticalNesting > portNO_CRITICAL_NESTING )
|
||||
{
|
||||
/* Decrement the nesting count as we are leaving a critical section. */
|
||||
ulCriticalNesting--;
|
||||
|
||||
/* If the nesting level has reached zero then interrupts should be
|
||||
re-enabled. */
|
||||
if( ulCriticalNesting == portNO_CRITICAL_NESTING )
|
||||
{
|
||||
/* Enable interrupts as per portEXIT_CRITICAL(). */
|
||||
asm volatile (
|
||||
"STMDB SP!, {R0} \n\t" /* Push R0. */
|
||||
"MRS R0, CPSR \n\t" /* Get CPSR. */
|
||||
"BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */
|
||||
"MSR CPSR, R0 \n\t" /* Write back modified value. */
|
||||
"LDMIA SP!, {R0}" ); /* Pop R0. */
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
@@ -0,0 +1,183 @@
|
||||
/*
|
||||
FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd.
|
||||
All rights reserved
|
||||
|
||||
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||||
|
||||
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. Full license text is available on the following
|
||||
link: http://www.freertos.org/a00114.html
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS provides completely free yet professionally developed, *
|
||||
* robust, strictly quality controlled, supported, and cross *
|
||||
* platform software that is more than just the market leader, it *
|
||||
* is the industry's de facto standard. *
|
||||
* *
|
||||
* Help yourself get started quickly while simultaneously helping *
|
||||
* to support the FreeRTOS project by purchasing a FreeRTOS *
|
||||
* tutorial book, reference manual, or both: *
|
||||
* http://www.FreeRTOS.org/Documentation *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
|
||||
the FAQ page "My application does not run, what could be wrong?". Have you
|
||||
defined configASSERT()?
|
||||
|
||||
http://www.FreeRTOS.org/support - In return for receiving this top quality
|
||||
embedded software for free we request you assist our global community by
|
||||
participating in the support forum.
|
||||
|
||||
http://www.FreeRTOS.org/training - Investing in training allows your team to
|
||||
be as productive as possible as early as possible. Now you can receive
|
||||
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
|
||||
Ltd, and the world's leading authority on the world's leading RTOS.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
||||
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
|
||||
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
|
||||
|
||||
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
|
||||
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
|
||||
licenses offer ticketed support, indemnification and commercial middleware.
|
||||
|
||||
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
|
||||
engineered and independently SIL3 certified version for use in safety and
|
||||
mission critical applications that require provable dependability.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
|
||||
#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 uint32_t
|
||||
#define portBASE_TYPE long
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Hardware specifics. */
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portYIELD() asm volatile ( "SWI 0" )
|
||||
#define portNOP() asm volatile ( "NOP" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Critical section handling. */
|
||||
/*
|
||||
* The interrupt management utilities can only be called from ARM mode. When
|
||||
* THUMB_INTERWORK is defined the utilities are defined as functions in
|
||||
* portISR.c to ensure a switch to ARM mode. When THUMB_INTERWORK is not
|
||||
* defined then the utilities are defined as macros here - as per other ports.
|
||||
*/
|
||||
|
||||
#ifdef THUMB_INTERWORK
|
||||
|
||||
extern void vPortDisableInterruptsFromThumb( void ) __attribute__ ((naked));
|
||||
extern void vPortEnableInterruptsFromThumb( void ) __attribute__ ((naked));
|
||||
|
||||
#define portDISABLE_INTERRUPTS() vPortDisableInterruptsFromThumb()
|
||||
#define portENABLE_INTERRUPTS() vPortEnableInterruptsFromThumb()
|
||||
|
||||
#else
|
||||
|
||||
#define portDISABLE_INTERRUPTS() \
|
||||
asm volatile ( \
|
||||
"STMDB SP!, {R0} \n\t" /* Push R0. */ \
|
||||
"MRS R0, CPSR \n\t" /* Get CPSR. */ \
|
||||
"ORR R0, R0, #0xC0 \n\t" /* Disable IRQ, FIQ. */ \
|
||||
"MSR CPSR, R0 \n\t" /* Write back modified value. */ \
|
||||
"LDMIA SP!, {R0} " ) /* Pop R0. */
|
||||
|
||||
#define portENABLE_INTERRUPTS() \
|
||||
asm volatile ( \
|
||||
"STMDB SP!, {R0} \n\t" /* Push R0. */ \
|
||||
"MRS R0, CPSR \n\t" /* Get CPSR. */ \
|
||||
"BIC R0, R0, #0xC0 \n\t" /* Enable IRQ, FIQ. */ \
|
||||
"MSR CPSR, R0 \n\t" /* Write back modified value. */ \
|
||||
"LDMIA SP!, {R0} " ) /* Pop R0. */
|
||||
|
||||
#endif /* THUMB_INTERWORK */
|
||||
|
||||
extern void vPortEnterCritical( void );
|
||||
extern void vPortExitCritical( void );
|
||||
|
||||
#define portENTER_CRITICAL() vPortEnterCritical();
|
||||
#define portEXIT_CRITICAL() vPortExitCritical();
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Task utilities. */
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) \
|
||||
{ \
|
||||
extern void vTaskSwitchContext( void ); \
|
||||
\
|
||||
if( xSwitchRequired ) \
|
||||
{ \
|
||||
vTaskSwitchContext(); \
|
||||
} \
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* 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 )
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
|
||||
|
||||
Reference in New Issue
Block a user