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main.c
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main.c
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/*
FreeRTOS V9.0.0rc1 - 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!
*/
/******************************************************************************
* This project provides two demo applications. A simple blinky style project,
* and a more comprehensive test and demo application. The
* configCREATE_SIMPLE_TICKLESS_DEMO setting (defined in FreeRTOSConfig.h) 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.
*
* The comprehensive demo uses FreeRTOS+CLI to create a simple command line
* interface through a UART.
*
* The blinky demo uses FreeRTOS's tickless idle mode to reduce power
* consumption. See the notes on the web page below regarding the difference
* in power saving that can be achieved between using the generic tickless
* implementation (as used by the blinky demo) and a tickless implementation
* that is tailored specifically to the MSP432.
*
* This file implements the code that is not demo specific.
*
* See http://www.FreeRTOS.org/TI_MSP432_Free_RTOS_Demo.html for instructions.
*
*/
/* Standard includes. */
#include <stdio.h>
/* Kernel includes. */
#include "FreeRTOS.h"
#include "task.h"
/*-----------------------------------------------------------*/
/*
* Set up the hardware ready to run this demo.
*/
static void prvSetupHardware( void );
/*
* main_blinky() is used when configCREATE_SIMPLE_TICKLESS_DEMO is set to 1.
* main_full() is used when configCREATE_SIMPLE_TICKLESS_DEMO is set to 0.
*/
extern void main_blinky( void );
extern void main_full( void );
/*-----------------------------------------------------------*/
int main( void )
{
/* See http://www.FreeRTOS.org/TI_MSP432_Free_RTOS_Demo.html for instructions. */
/* Prepare the hardware to run this demo. */
prvSetupHardware();
/* The configCREATE_SIMPLE_TICKLESS_DEMO setting is described at the top
of this file. */
#if configCREATE_SIMPLE_TICKLESS_DEMO == 1
{
main_blinky();
}
#else
{
main_full();
}
#endif
return 0;
}
/*-----------------------------------------------------------*/
static void prvSetupHardware( void )
{
extern void FPU_enableModule( void );
/* The clocks are not configured here, but inside main_full() and
main_blinky() as the full demo uses a fast clock and the blinky demo uses
a slow clock. */
/* Stop the watchdog timer. */
MAP_WDT_A_holdTimer();
/* Ensure the FPU is enabled. */
FPU_enableModule();
/* Selecting P1.2 and P1.3 in UART mode and P1.0 as output (LED) */
MAP_GPIO_setAsPeripheralModuleFunctionInputPin( GPIO_PORT_P1, GPIO_PIN2 | GPIO_PIN3, GPIO_PRIMARY_MODULE_FUNCTION );
MAP_GPIO_setOutputLowOnPin( GPIO_PORT_P1, GPIO_PIN0 );
MAP_GPIO_setAsOutputPin( GPIO_PORT_P1, GPIO_PIN0 );
/* Enable S2 and LED2 */
MAP_GPIO_setOutputLowOnPin( GPIO_PORT_P2, GPIO_PIN0 );
MAP_GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN0);
MAP_GPIO_setOutputLowOnPin( GPIO_PORT_P2, GPIO_PIN1 );
MAP_GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN1);
MAP_GPIO_setOutputLowOnPin( GPIO_PORT_P2, GPIO_PIN2 );
MAP_GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN2);
MAP_GPIO_setAsInputPinWithPullUpResistor(GPIO_PORT_P1, GPIO_PIN4);
MAP_GPIO_interruptEdgeSelect(GPIO_PORT_P1, GPIO_PIN4, GPIO_HIGH_TO_LOW_TRANSITION);
MAP_GPIO_clearInterruptFlag(GPIO_PORT_P1, GPIO_PIN4);
MAP_GPIO_enableInterrupt(GPIO_PORT_P1, GPIO_PIN4);
MAP_Interrupt_enableInterrupt(INT_PORT1);
}
/*-----------------------------------------------------------*/
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( TaskHandle_t pxTask, 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( ;; );
}
/*-----------------------------------------------------------*/
// Idle task buffers
StaticTask_t xIdleTaskBuffer;
StackType_t xIdleStack[configMINIMAL_STACK_SIZE];
void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer,
StackType_t **ppxIdleTaskStackBuffer,
uint16_t *pusIdleTaskStackSize )
{
/* Setting this parameter to NULL will result in the Idle task's TCB being
allocated dynamically. */
*ppxIdleTaskTCBBuffer = &xIdleTaskBuffer;
/* Setting this parameter to NULL will result in the Idle task's stack being
allocated dynamically. */
*ppxIdleTaskStackBuffer = &xIdleStack;
/* The size of the stack to allocate - in words, NOT in bytes! */
*pusIdleTaskStackSize = configMINIMAL_STACK_SIZE;
}
static StaticTask_t xDaemonTCB;
static StackType_t uxDaemonTaskStack[ 200 ];
void vApplicationGetTimerTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer,
StackType_t **ppxIdleTaskStackBuffer,
uint16_t *pusIdleTaskStackSize )
{
/* The daemon task's TCB will be stored in the xDaemonTCB variable . */
*ppxIdleTaskTCBBuffer = &xDaemonTCB;
/* The daemon task will use the uxDaemonTaskStack array as its stack. */
*ppxIdleTaskStackBuffer = uxDaemonTaskStack;
/* The size of the uxDaemonTaskStack array - in words, NOT in bytes! */
*pusIdleTaskStackSize = 200;
}
#if 0
void *malloc( size_t xSize )
{
/* There should not be a heap defined, so trap any attempts to call
malloc. */
Interrupt_disableMaster();
for( ;; );
}
#endif
/*-----------------------------------------------------------*/