2 FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 This file is part of the FreeRTOS distribution.
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9 FreeRTOS is free software; you can redistribute it and/or modify it under
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10 the terms of the GNU General Public License (version 2) as published by the
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11 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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13 ***************************************************************************
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14 >>! NOTE: The modification to the GPL is included to allow you to !<<
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15 >>! distribute a combined work that includes FreeRTOS without being !<<
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16 >>! obliged to provide the source code for proprietary components !<<
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17 >>! outside of the FreeRTOS kernel. !<<
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18 ***************************************************************************
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20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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23 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * FreeRTOS provides completely free yet professionally developed, *
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28 * robust, strictly quality controlled, supported, and cross *
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29 * platform software that is more than just the market leader, it *
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30 * is the industry's de facto standard. *
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32 * Help yourself get started quickly while simultaneously helping *
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33 * to support the FreeRTOS project by purchasing a FreeRTOS *
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34 * tutorial book, reference manual, or both: *
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35 * http://www.FreeRTOS.org/Documentation *
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37 ***************************************************************************
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39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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40 the FAQ page "My application does not run, what could be wrong?". Have you
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41 defined configASSERT()?
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43 http://www.FreeRTOS.org/support - In return for receiving this top quality
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44 embedded software for free we request you assist our global community by
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45 participating in the support forum.
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47 http://www.FreeRTOS.org/training - Investing in training allows your team to
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48 be as productive as possible as early as possible. Now you can receive
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49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
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50 Ltd, and the world's leading authority on the world's leading RTOS.
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52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
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60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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61 licenses offer ticketed support, indemnification and commercial middleware.
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63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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64 engineered and independently SIL3 certified version for use in safety and
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65 mission critical applications that require provable dependability.
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70 /******************************************************************************
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71 * This project provides two demo applications. A simple blinky style project,
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72 * and a more comprehensive test and demo application. The
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73 * mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting (defined in this file) is used to
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74 * select between the two. The simply blinky demo is implemented and described
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75 * in main_blinky.c. The more comprehensive test and demo application is
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76 * implemented and described in main_full.c.
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78 * This file implements the code that is not demo specific, including the
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79 * hardware setup and standard FreeRTOS hook functions.
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81 * ENSURE TO READ THE DOCUMENTATION PAGE FOR THIS PORT AND DEMO APPLICATION ON
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82 * THE http://www.FreeRTOS.org WEB SITE FOR FULL INFORMATION ON USING THIS DEMO
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83 * APPLICATION, AND ITS ASSOCIATE FreeRTOS ARCHITECTURE PORT!
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87 /* Scheduler include files. */
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88 #include "FreeRTOS.h"
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92 /* Standard demo includes, used so the tick hook can exercise some FreeRTOS
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93 functionality in an interrupt. */
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94 #include "EventGroupsDemo.h"
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95 #include "TaskNotify.h"
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96 #include "ParTest.h" /* LEDs - a historic name for "Parallel Port". */
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99 #include "driverlib.h"
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101 /* Set mainCREATE_SIMPLE_BLINKY_DEMO_ONLY to one to run the simple blinky demo,
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102 or 0 to run the more comprehensive test and demo application. */
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103 #define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 0
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105 /*-----------------------------------------------------------*/
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108 * Configure the hardware as necessary to run this demo.
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110 static void prvSetupHardware( void );
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113 * main_blinky() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
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114 * main_full() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
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116 #if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
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117 extern void main_blinky( void );
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119 extern void main_full( void );
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120 #endif /* #if mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 */
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122 /* Prototypes for the standard FreeRTOS callback/hook functions implemented
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123 within this file. */
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124 void vApplicationMallocFailedHook( void );
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125 void vApplicationIdleHook( void );
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126 void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
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127 void vApplicationTickHook( void );
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129 /* The heap is allocated here so the "persistent" qualifier can be used. This
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130 requires configAPPLICATION_ALLOCATED_HEAP to be set to 1 in FreeRTOSConfig.h.
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131 See http://www.freertos.org/a00111.html for more information. */
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133 __persistent /* IAR version. */
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135 #pragma PERSISTENT( ucHeap ) /* CCS version. */
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137 uint8_t ucHeap[ configTOTAL_HEAP_SIZE ] = { 0 };
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139 /*-----------------------------------------------------------*/
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143 /* Configure the hardware ready to run the demo. */
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144 prvSetupHardware();
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146 /* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is described at the top
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148 #if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
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160 /*-----------------------------------------------------------*/
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162 void vApplicationMallocFailedHook( void )
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164 /* Called if a call to pvPortMalloc() fails because there is insufficient
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165 free memory available in the FreeRTOS heap. pvPortMalloc() is called
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166 internally by FreeRTOS API functions that create tasks, queues, software
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167 timers, and semaphores. The size of the FreeRTOS heap is set by the
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168 configTOTAL_HEAP_SIZE configuration constant in FreeRTOSConfig.h. */
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170 /* Force an assert. */
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171 configASSERT( ( volatile void * ) NULL );
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173 /*-----------------------------------------------------------*/
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175 void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
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177 ( void ) pcTaskName;
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180 /* Run time stack overflow checking is performed if
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181 configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
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182 function is called if a stack overflow is detected.
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183 See http://www.freertos.org/Stacks-and-stack-overflow-checking.html */
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185 /* Force an assert. */
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186 configASSERT( ( volatile void * ) NULL );
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188 /*-----------------------------------------------------------*/
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190 void vApplicationIdleHook( void )
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192 __bis_SR_register( LPM4_bits + GIE );
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195 /*-----------------------------------------------------------*/
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197 void vApplicationTickHook( void )
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199 #if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 0 )
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201 /* Call the periodic event group from ISR demo. */
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202 vPeriodicEventGroupsProcessing();
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204 /* Call the code that 'gives' a task notification from an ISR. */
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205 xNotifyTaskFromISR();
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209 /*-----------------------------------------------------------*/
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211 /* The MSP430X port uses this callback function to configure its tick interrupt.
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212 This allows the application to choose the tick interrupt source.
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213 configTICK_VECTOR must also be set in FreeRTOSConfig.h to the correct
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214 interrupt vector for the chosen tick interrupt source. This implementation of
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215 vApplicationSetupTimerInterrupt() generates the tick from timer A0, so in this
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216 case configTICK_VECTOR is set to TIMER0_A0_VECTOR. */
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217 void vApplicationSetupTimerInterrupt( void )
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219 const unsigned short usACLK_Frequency_Hz = 32768;
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221 /* Ensure the timer is stopped. */
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224 /* Run the timer from the ACLK. */
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227 /* Clear everything to start with. */
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230 /* Set the compare match value according to the tick rate we want. */
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231 TA0CCR0 = usACLK_Frequency_Hz / configTICK_RATE_HZ;
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233 /* Enable the interrupts. */
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236 /* Start up clean. */
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242 /*-----------------------------------------------------------*/
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244 static void prvSetupHardware( void )
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246 /* Stop Watchdog timer. */
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247 WDT_A_hold( __MSP430_BASEADDRESS_WDT_A__ );
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249 /* Set all GPIO pins to output and low. */
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250 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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251 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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252 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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253 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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254 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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255 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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256 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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257 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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258 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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259 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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261 /* Configure P2.0 - UCA0TXD and P2.1 - UCA0RXD. */
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262 GPIO_setOutputLowOnPin( GPIO_PORT_P2, GPIO_PIN0 );
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263 GPIO_setAsOutputPin( GPIO_PORT_P2, GPIO_PIN0 );
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264 GPIO_setAsPeripheralModuleFunctionInputPin( GPIO_PORT_P2, GPIO_PIN1, GPIO_SECONDARY_MODULE_FUNCTION );
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265 GPIO_setAsPeripheralModuleFunctionOutputPin( GPIO_PORT_P2, GPIO_PIN0, GPIO_SECONDARY_MODULE_FUNCTION );
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267 /* Set PJ.4 and PJ.5 for LFXT. */
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268 GPIO_setAsPeripheralModuleFunctionInputPin( GPIO_PORT_PJ, GPIO_PIN4 + GPIO_PIN5, GPIO_PRIMARY_MODULE_FUNCTION );
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270 /* Set DCO frequency to 8 MHz. */
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271 CS_setDCOFreq( CS_DCORSEL_0, CS_DCOFSEL_6 );
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273 /* Set external clock frequency to 32.768 KHz. */
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274 CS_setExternalClockSource( 32768, 0 );
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276 /* Set ACLK = LFXT. */
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277 CS_initClockSignal( CS_ACLK, CS_LFXTCLK_SELECT, CS_CLOCK_DIVIDER_1 );
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279 /* Set SMCLK = DCO with frequency divider of 1. */
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280 CS_initClockSignal( CS_SMCLK, CS_DCOCLK_SELECT, CS_CLOCK_DIVIDER_1 );
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282 /* Set MCLK = DCO with frequency divider of 1. */
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283 CS_initClockSignal( CS_MCLK, CS_DCOCLK_SELECT, CS_CLOCK_DIVIDER_1 );
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285 /* Start XT1 with no time out. */
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286 CS_turnOnLFXT( CS_LFXT_DRIVE_0 );
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288 /* Disable the GPIO power-on default high-impedance mode. */
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291 /*-----------------------------------------------------------*/
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293 int _system_pre_init( void )
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295 /* Stop Watchdog timer. */
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296 WDT_A_hold( __MSP430_BASEADDRESS_WDT_A__ );
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298 /* Return 1 for segments to be initialised. */
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