git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/msp430_GCC/ParTest/ParTest.c

   1 /*\r
   2     FreeRTOS V9.0.0rc1 - Copyright (C) 2016 Real Time Engineers Ltd.\r
   3     All rights reserved\r
   4 \r
   5     VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
   6 \r
   7     This file is part of the FreeRTOS distribution.\r
   8 \r
   9     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  10     the terms of the GNU General Public License (version 2) as published by the\r
  11     Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.\r
  12 \r
  13     ***************************************************************************\r
  14     >>!   NOTE: The modification to the GPL is included to allow you to     !<<\r
  15     >>!   distribute a combined work that includes FreeRTOS without being   !<<\r
  16     >>!   obliged to provide the source code for proprietary components     !<<\r
  17     >>!   outside of the FreeRTOS kernel.                                   !<<\r
  18     ***************************************************************************\r
  19 \r
  20     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  21     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  22     FOR A PARTICULAR PURPOSE.  Full license text is available on the following\r
  23     link: http://www.freertos.org/a00114.html\r
  24 \r
  25     ***************************************************************************\r
  26      *                                                                       *\r
  27      *    FreeRTOS provides completely free yet professionally developed,    *\r
  28      *    robust, strictly quality controlled, supported, and cross          *\r
  29      *    platform software that is more than just the market leader, it     *\r
  30      *    is the industry's de facto standard.                               *\r
  31      *                                                                       *\r
  32      *    Help yourself get started quickly while simultaneously helping     *\r
  33      *    to support the FreeRTOS project by purchasing a FreeRTOS           *\r
  34      *    tutorial book, reference manual, or both:                          *\r
  35      *    http://www.FreeRTOS.org/Documentation                              *\r
  36      *                                                                       *\r
  37     ***************************************************************************\r
  38 \r
  39     http://www.FreeRTOS.org/FAQHelp.html - Having a problem?  Start by reading\r
  40     the FAQ page "My application does not run, what could be wrong?".  Have you\r
  41     defined configASSERT()?\r
  42 \r
  43     http://www.FreeRTOS.org/support - In return for receiving this top quality\r
  44     embedded software for free we request you assist our global community by\r
  45     participating in the support forum.\r
  46 \r
  47     http://www.FreeRTOS.org/training - Investing in training allows your team to\r
  48     be as productive as possible as early as possible.  Now you can receive\r
  49     FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers\r
  50     Ltd, and the world's leading authority on the world's leading RTOS.\r
  51 \r
  52     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
  53     including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
  54     compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
  55 \r
  56     http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.\r
  57     Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.\r
  58 \r
  59     http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High\r
  60     Integrity Systems ltd. to sell under the OpenRTOS brand.  Low cost OpenRTOS\r
  61     licenses offer ticketed support, indemnification and commercial middleware.\r
  62 \r
  63     http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
  64     engineered and independently SIL3 certified version for use in safety and\r
  65     mission critical applications that require provable dependability.\r
  66 \r
  67     1 tab == 4 spaces!\r
  68 */\r
  69 \r
  70 /*-----------------------------------------------------------\r
  71  * Characters on the LCD are used to simulate LED's.  In this case the 'ParTest'\r
  72  * is really operating on the LCD display.\r
  73  *-----------------------------------------------------------*/\r
  74 \r
  75 /*\r
  76  * This demo is configured to execute on the ES449 prototyping board from\r
  77  * SoftBaugh. The ES449 has a built in LCD display and a single built in user\r
  78  * LED.  Therefore, in place of flashing an LED, the 'flash' and 'check' tasks\r
  79  * toggle '*' characters on the LCD.  The left most '*' represents LED 0, the\r
  80  * next LED 1, etc.\r
  81  *\r
  82  * There is a single genuine on board LED referenced as LED 10.\r
  83  */\r
  84 \r
  85 /* Standard includes. */\r
  86 #include <signal.h>\r
  87 \r
  88 /* Scheduler includes. */\r
  89 #include "FreeRTOS.h"\r
  90 #include "task.h"\r
  91 \r
  92 /* Demo application includes. */\r
  93 #include "partest.h"\r
  94 \r
  95 /* Constants required to setup the LCD. */\r
  96 #define LCD_DIV_64 5\r
  97 \r
  98 /* Constants required to access the "LED's".  The LED segments are turned on\r
  99 and off to generate '*' characters. */\r
 100 #define partstNUM_LEDS                  ( ( unsigned char ) 6 )\r
 101 #define partstSEGMENTS_ON               ( ( unsigned char ) 0x0f )\r
 102 #define partstSEGMENTS_OFF              ( ( unsigned char ) 0x00 )\r
 103 \r
 104 /* The LED number of the real on board LED, rather than a simulated LED. */\r
 105 #define partstON_BOARD_LED              ( ( unsigned portBASE_TYPE ) 10 )\r
 106 #define mainON_BOARD_LED_BIT    ( ( unsigned char ) 0x01 )\r
 107 \r
 108 /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */\r
 109 unsigned char * const ucRHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa4, \r
 110                                                                                                                                 ( unsigned char * )0xa2, \r
 111                                                                                                                                 ( unsigned char * )0xa0, \r
 112                                                                                                                                 ( unsigned char * )0x9e,\r
 113                                                                                                                                 ( unsigned char * )0x9c,\r
 114                                                                                                                                 ( unsigned char * )0x9a };\r
 115 \r
 116 unsigned char * const ucLHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa3, \r
 117                                                                                                                                 ( unsigned char * )0xa1, \r
 118                                                                                                                                 ( unsigned char * )0x9f, \r
 119                                                                                                                                 ( unsigned char * )0x9d,\r
 120                                                                                                                                 ( unsigned char * )0x9b,\r
 121                                                                                                                                 ( unsigned char * )0x99 };\r
 122 \r
 123 /*\r
 124  * Toggle the single genuine built in LED.\r
 125  */\r
 126 static void prvToggleOnBoardLED( void );\r
 127 \r
 128 /*-----------------------------------------------------------*/\r
 129 \r
 130 void vParTestInitialise( void )\r
 131 {\r
 132         /* Initialise the LCD hardware. */\r
 133 \r
 134         /* Used for the onboard LED. */\r
 135         P1DIR = 0x01;\r
 136 \r
 137         // Setup Basic Timer for LCD operation\r
 138         BTCTL = (LCD_DIV_64+0x23);\r
 139 \r
 140         // Setup port functions\r
 141         P1SEL = 0x32;\r
 142         P2SEL = 0x00;\r
 143         P3SEL = 0x00;\r
 144         P4SEL = 0xFC;\r
 145         P5SEL = 0xFF;\r
 146         \r
 147         /* Initialise all segments to off. */\r
 148         LCDM1 = partstSEGMENTS_OFF;     \r
 149         LCDM2 = partstSEGMENTS_OFF;     \r
 150         LCDM3 = partstSEGMENTS_OFF;     \r
 151         LCDM4 = partstSEGMENTS_OFF;     \r
 152         LCDM5 = partstSEGMENTS_OFF;     \r
 153         LCDM6 = partstSEGMENTS_OFF;     \r
 154         LCDM7 = partstSEGMENTS_OFF;     \r
 155         LCDM8 = partstSEGMENTS_OFF;     \r
 156         LCDM9 = partstSEGMENTS_OFF;     \r
 157         LCDM10 = partstSEGMENTS_OFF;    \r
 158         LCDM11 = partstSEGMENTS_OFF;    \r
 159         LCDM12 = partstSEGMENTS_OFF;    \r
 160         LCDM13 = partstSEGMENTS_OFF;    \r
 161         LCDM14 = partstSEGMENTS_OFF;    \r
 162         LCDM15 = partstSEGMENTS_OFF;    \r
 163         LCDM16 = partstSEGMENTS_OFF;    \r
 164         LCDM17 = partstSEGMENTS_OFF;    \r
 165         LCDM18 = partstSEGMENTS_OFF;    \r
 166         LCDM19 = partstSEGMENTS_OFF;    \r
 167         LCDM20 = partstSEGMENTS_OFF;    \r
 168 \r
 169         /* Setup LCD control. */\r
 170         LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);\r
 171 }\r
 172 /*-----------------------------------------------------------*/\r
 173 \r
 174 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
 175 {\r
 176         /* Set or clear the output [in this case show or hide the '*' character. */\r
 177         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 178         {\r
 179                 vTaskSuspendAll();\r
 180                 {\r
 181                         if( xValue )\r
 182                         {\r
 183                                 /* Turn on the segments required to show the '*'. */\r
 184                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 185                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 186                         }\r
 187                         else\r
 188                         {\r
 189                                 /* Turn off all the segments. */\r
 190                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 191                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 192                         }\r
 193                 }\r
 194                 xTaskResumeAll();\r
 195         }\r
 196 }\r
 197 /*-----------------------------------------------------------*/\r
 198 \r
 199 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 200 {\r
 201         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 202         {\r
 203                 vTaskSuspendAll();\r
 204                 {\r
 205                         /* If the '*' is already showing - hide it.  If it is not already\r
 206                         showing then show it. */\r
 207                         if( *( ucRHSSegments[ uxLED ] ) )\r
 208                         {\r
 209                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 210                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 211                         }\r
 212                         else\r
 213                         {\r
 214                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 215                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 216                         }\r
 217                 }\r
 218                 xTaskResumeAll();\r
 219         }\r
 220         else\r
 221         {\r
 222                 if( uxLED == partstON_BOARD_LED )\r
 223                 {\r
 224                         /* The request related to the genuine on board LED. */\r
 225                         prvToggleOnBoardLED();\r
 226                 }\r
 227         }       \r
 228 }\r
 229 /*-----------------------------------------------------------*/\r
 230 \r
 231 static void prvToggleOnBoardLED( void )\r
 232 {\r
 233 static unsigned short sState = pdFALSE;\r
 234 \r
 235         /* Toggle the state of the single genuine on board LED. */\r
 236         if( sState )    \r
 237         {\r
 238                 P1OUT |= mainON_BOARD_LED_BIT;\r
 239         }\r
 240         else\r
 241         {\r
 242                 P1OUT &= ~mainON_BOARD_LED_BIT;\r
 243         }\r
 244 \r
 245         sState = !sState;\r
 246 }\r
 247 /*-----------------------------------------------------------*/\r
 248 \r
 249 \r