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263 lines
10 KiB
C
263 lines
10 KiB
C
/*
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* FreeRTOS Kernel V10.0.1
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* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* http://www.FreeRTOS.org
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* http://aws.amazon.com/freertos
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*
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* 1 tab == 4 spaces!
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*/
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/******************************************************************************
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* This project provides two demo applications. A simple blinky style project,
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* and a more comprehensive test and demo application. The
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* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting (defined in this file) is used to
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* select between the two. The simply blinky demo is implemented and described
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* in main_blinky.c. The more comprehensive test and demo application is
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* implemented and described in main_full.c.
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*
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* This file implements the code that is not demo specific, including the
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* hardware setup and standard FreeRTOS hook functions.
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*
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* ENSURE TO READ THE DOCUMENTATION PAGE FOR THIS PORT AND DEMO APPLICATION ON
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* THE http://www.FreeRTOS.org WEB SITE FOR FULL INFORMATION ON USING THIS DEMO
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* APPLICATION, AND ITS ASSOCIATE FreeRTOS ARCHITECTURE PORT!
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*
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*/
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/* Scheduler include files. */
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#include "FreeRTOS.h"
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#include "task.h"
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#include "semphr.h"
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/* Standard demo includes, used so the tick hook can exercise some FreeRTOS
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functionality in an interrupt. */
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#include "EventGroupsDemo.h"
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#include "TaskNotify.h"
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#include "ParTest.h" /* LEDs - a historic name for "Parallel Port". */
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/* TI includes. */
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#include "driverlib.h"
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/* Set mainCREATE_SIMPLE_BLINKY_DEMO_ONLY to one to run the simple blinky demo,
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or 0 to run the more comprehensive test and demo application. */
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#define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 0
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/*-----------------------------------------------------------*/
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/*
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* Configure the hardware as necessary to run this demo.
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*/
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static void prvSetupHardware( void );
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/*
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* main_blinky() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
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* main_full() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
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*/
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#if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
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extern void main_blinky( void );
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#else
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extern void main_full( void );
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#endif /* #if mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 */
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/* Prototypes for the standard FreeRTOS callback/hook functions implemented
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within this file. */
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void vApplicationMallocFailedHook( void );
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void vApplicationIdleHook( void );
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void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
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void vApplicationTickHook( void );
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/* The heap is allocated here so the "persistent" qualifier can be used. This
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requires configAPPLICATION_ALLOCATED_HEAP to be set to 1 in FreeRTOSConfig.h.
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See http://www.freertos.org/a00111.html for more information. */
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#ifdef __ICC430__
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__persistent /* IAR version. */
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#else
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#pragma PERSISTENT( ucHeap ) /* CCS version. */
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#endif
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uint8_t ucHeap[ configTOTAL_HEAP_SIZE ] = { 0 };
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/*-----------------------------------------------------------*/
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int main( void )
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{
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/* See http://www.FreeRTOS.org/MSP430FR5969_Free_RTOS_Demo.html */
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/* Configure the hardware ready to run the demo. */
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prvSetupHardware();
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/* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is described at the top
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of this file. */
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#if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
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{
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main_blinky();
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}
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#else
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{
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main_full();
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}
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#endif
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return 0;
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}
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/*-----------------------------------------------------------*/
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void vApplicationMallocFailedHook( void )
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{
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/* Called if a call to pvPortMalloc() fails because there is insufficient
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free memory available in the FreeRTOS heap. pvPortMalloc() is called
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internally by FreeRTOS API functions that create tasks, queues, software
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timers, and semaphores. The size of the FreeRTOS heap is set by the
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configTOTAL_HEAP_SIZE configuration constant in FreeRTOSConfig.h. */
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/* Force an assert. */
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configASSERT( ( volatile void * ) NULL );
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}
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/*-----------------------------------------------------------*/
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void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
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{
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( void ) pcTaskName;
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( void ) pxTask;
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/* Run time stack overflow checking is performed if
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configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
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function is called if a stack overflow is detected.
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See http://www.freertos.org/Stacks-and-stack-overflow-checking.html */
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/* Force an assert. */
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configASSERT( ( volatile void * ) NULL );
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}
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/*-----------------------------------------------------------*/
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void vApplicationIdleHook( void )
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{
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__bis_SR_register( LPM4_bits + GIE );
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__no_operation();
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}
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/*-----------------------------------------------------------*/
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void vApplicationTickHook( void )
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{
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#if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 0 )
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{
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/* Call the periodic event group from ISR demo. */
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vPeriodicEventGroupsProcessing();
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/* Call the code that 'gives' a task notification from an ISR. */
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xNotifyTaskFromISR();
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}
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#endif
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}
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/*-----------------------------------------------------------*/
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/* The MSP430X port uses this callback function to configure its tick interrupt.
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This allows the application to choose the tick interrupt source.
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configTICK_VECTOR must also be set in FreeRTOSConfig.h to the correct
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interrupt vector for the chosen tick interrupt source. This implementation of
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vApplicationSetupTimerInterrupt() generates the tick from timer A0, so in this
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case configTICK_VECTOR is set to TIMER0_A0_VECTOR. */
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void vApplicationSetupTimerInterrupt( void )
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{
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const unsigned short usACLK_Frequency_Hz = 32768;
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/* Ensure the timer is stopped. */
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TA0CTL = 0;
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/* Run the timer from the ACLK. */
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TA0CTL = TASSEL_1;
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/* Clear everything to start with. */
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TA0CTL |= TACLR;
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/* Set the compare match value according to the tick rate we want. */
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TA0CCR0 = usACLK_Frequency_Hz / configTICK_RATE_HZ;
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/* Enable the interrupts. */
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TA0CCTL0 = CCIE;
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/* Start up clean. */
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TA0CTL |= TACLR;
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/* Up mode. */
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TA0CTL |= MC_1;
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}
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/*-----------------------------------------------------------*/
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static void prvSetupHardware( void )
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{
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/* Stop Watchdog timer. */
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WDT_A_hold( __MSP430_BASEADDRESS_WDT_A__ );
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/* Set all GPIO pins to output and low. */
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GPIO_setOutputLowOnPin( GPIO_PORT_P1, GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2 | GPIO_PIN3 | GPIO_PIN4 | GPIO_PIN5 | GPIO_PIN6 | GPIO_PIN7 );
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GPIO_setOutputLowOnPin( GPIO_PORT_P2, GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2 | GPIO_PIN3 | GPIO_PIN4 | GPIO_PIN5 | GPIO_PIN6 | GPIO_PIN7 );
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GPIO_setOutputLowOnPin( GPIO_PORT_P3, GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2 | GPIO_PIN3 | GPIO_PIN4 | GPIO_PIN5 | GPIO_PIN6 | GPIO_PIN7 );
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GPIO_setOutputLowOnPin( GPIO_PORT_P4, GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2 | GPIO_PIN3 | GPIO_PIN4 | GPIO_PIN5 | GPIO_PIN6 | GPIO_PIN7 );
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GPIO_setOutputLowOnPin( GPIO_PORT_PJ, GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2 | GPIO_PIN3 | GPIO_PIN4 | GPIO_PIN5 | GPIO_PIN6 | GPIO_PIN7 | GPIO_PIN8 | GPIO_PIN9 | GPIO_PIN10 | GPIO_PIN11 | GPIO_PIN12 | GPIO_PIN13 | GPIO_PIN14 | GPIO_PIN15 );
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GPIO_setAsOutputPin( GPIO_PORT_P1, GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2 | GPIO_PIN3 | GPIO_PIN4 | GPIO_PIN5 | GPIO_PIN6 | GPIO_PIN7 );
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GPIO_setAsOutputPin( GPIO_PORT_P2, GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2 | GPIO_PIN3 | GPIO_PIN4 | GPIO_PIN5 | GPIO_PIN6 | GPIO_PIN7 );
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GPIO_setAsOutputPin( GPIO_PORT_P3, GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2 | GPIO_PIN3 | GPIO_PIN4 | GPIO_PIN5 | GPIO_PIN6 | GPIO_PIN7 );
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GPIO_setAsOutputPin( GPIO_PORT_P4, GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2 | GPIO_PIN3 | GPIO_PIN4 | GPIO_PIN5 | GPIO_PIN6 | GPIO_PIN7 );
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GPIO_setAsOutputPin( GPIO_PORT_PJ, GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2 | GPIO_PIN3 | GPIO_PIN4 | GPIO_PIN5 | GPIO_PIN6 | GPIO_PIN7 | GPIO_PIN8 | GPIO_PIN9 | GPIO_PIN10 | GPIO_PIN11 | GPIO_PIN12 | GPIO_PIN13 | GPIO_PIN14 | GPIO_PIN15 );
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/* Configure P2.0 - UCA0TXD and P2.1 - UCA0RXD. */
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GPIO_setOutputLowOnPin( GPIO_PORT_P2, GPIO_PIN0 );
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GPIO_setAsOutputPin( GPIO_PORT_P2, GPIO_PIN0 );
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GPIO_setAsPeripheralModuleFunctionInputPin( GPIO_PORT_P2, GPIO_PIN1, GPIO_SECONDARY_MODULE_FUNCTION );
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GPIO_setAsPeripheralModuleFunctionOutputPin( GPIO_PORT_P2, GPIO_PIN0, GPIO_SECONDARY_MODULE_FUNCTION );
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/* Set PJ.4 and PJ.5 for LFXT. */
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GPIO_setAsPeripheralModuleFunctionInputPin( GPIO_PORT_PJ, GPIO_PIN4 + GPIO_PIN5, GPIO_PRIMARY_MODULE_FUNCTION );
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/* Set DCO frequency to 8 MHz. */
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CS_setDCOFreq( CS_DCORSEL_0, CS_DCOFSEL_6 );
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/* Set external clock frequency to 32.768 KHz. */
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CS_setExternalClockSource( 32768, 0 );
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/* Set ACLK = LFXT. */
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CS_initClockSignal( CS_ACLK, CS_LFXTCLK_SELECT, CS_CLOCK_DIVIDER_1 );
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/* Set SMCLK = DCO with frequency divider of 1. */
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CS_initClockSignal( CS_SMCLK, CS_DCOCLK_SELECT, CS_CLOCK_DIVIDER_1 );
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/* Set MCLK = DCO with frequency divider of 1. */
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CS_initClockSignal( CS_MCLK, CS_DCOCLK_SELECT, CS_CLOCK_DIVIDER_1 );
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/* Start XT1 with no time out. */
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CS_turnOnLFXT( CS_LFXT_DRIVE_0 );
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/* Disable the GPIO power-on default high-impedance mode. */
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PMM_unlockLPM5();
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}
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/*-----------------------------------------------------------*/
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int _system_pre_init( void )
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{
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/* Stop Watchdog timer. */
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WDT_A_hold( __MSP430_BASEADDRESS_WDT_A__ );
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/* Return 1 for segments to be initialised. */
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return 1;
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}
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