git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/msp430_IAR/ParTest/ParTest.c

   1 /*\r
   2     FreeRTOS V9.0.0rc2 - 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
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  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
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  58 \r
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  60     Integrity Systems ltd. to sell under the OpenRTOS brand.  Low cost OpenRTOS\r
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  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 \r
  86 /* Scheduler includes. */\r
  87 #include "FreeRTOS.h"\r
  88 #include "task.h"\r
  89 \r
  90 /* Demo application includes. */\r
  91 #include "partest.h"\r
  92 \r
  93 /* Constants required to setup the LCD. */\r
  94 #define LCD_DIV_64 5\r
  95 \r
  96 /* Constants required to access the "LED's".  The LED segments are turned on\r
  97 and off to generate '*' characters. */\r
  98 #define partstNUM_LEDS                  ( ( unsigned char ) 6 )\r
  99 #define partstSEGMENTS_ON               ( ( unsigned char ) 0x0f )\r
 100 #define partstSEGMENTS_OFF              ( ( unsigned char ) 0x00 )\r
 101 \r
 102 /* The LED number of the real on board LED, rather than a simulated LED. */\r
 103 #define partstON_BOARD_LED              ( ( unsigned portBASE_TYPE ) 10 )\r
 104 #define mainON_BOARD_LED_BIT    ( ( unsigned char ) 0x01 )\r
 105 \r
 106 /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */\r
 107 unsigned char * const ucRHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa4, \r
 108                                                                                                                                 ( unsigned char * )0xa2, \r
 109                                                                                                                                 ( unsigned char * )0xa0, \r
 110                                                                                                                                 ( unsigned char * )0x9e,\r
 111                                                                                                                                 ( unsigned char * )0x9c,\r
 112                                                                                                                                 ( unsigned char * )0x9a };\r
 113 \r
 114 unsigned char * const ucLHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa3, \r
 115                                                                                                                                 ( unsigned char * )0xa1, \r
 116                                                                                                                                 ( unsigned char * )0x9f, \r
 117                                                                                                                                 ( unsigned char * )0x9d,\r
 118                                                                                                                                 ( unsigned char * )0x9b,\r
 119                                                                                                                                 ( unsigned char * )0x99 };\r
 120 \r
 121 /*\r
 122  * Toggle the single genuine built in LED.\r
 123  */\r
 124 static void prvToggleOnBoardLED( void );\r
 125 \r
 126 /*-----------------------------------------------------------*/\r
 127 \r
 128 void vParTestInitialise( void )\r
 129 {\r
 130         /* Initialise the LCD hardware. */\r
 131 \r
 132         /* Used for the onboard LED. */\r
 133         P1DIR = 0x01;\r
 134 \r
 135         // Setup Basic Timer for LCD operation\r
 136         BTCTL = (LCD_DIV_64+0x23);\r
 137 \r
 138         // Setup port functions\r
 139         P1SEL = 0x32;\r
 140         P2SEL = 0x00;\r
 141         P3SEL = 0x00;\r
 142         P4SEL = 0xFC;\r
 143         P5SEL = 0xFF;\r
 144         \r
 145         /* Initialise all segments to off. */\r
 146         LCDM1 = partstSEGMENTS_OFF;     \r
 147         LCDM2 = partstSEGMENTS_OFF;     \r
 148         LCDM3 = partstSEGMENTS_OFF;     \r
 149         LCDM4 = partstSEGMENTS_OFF;     \r
 150         LCDM5 = partstSEGMENTS_OFF;     \r
 151         LCDM6 = partstSEGMENTS_OFF;     \r
 152         LCDM7 = partstSEGMENTS_OFF;     \r
 153         LCDM8 = partstSEGMENTS_OFF;     \r
 154         LCDM9 = partstSEGMENTS_OFF;     \r
 155         LCDM10 = partstSEGMENTS_OFF;    \r
 156         LCDM11 = partstSEGMENTS_OFF;    \r
 157         LCDM12 = partstSEGMENTS_OFF;    \r
 158         LCDM13 = partstSEGMENTS_OFF;    \r
 159         LCDM14 = partstSEGMENTS_OFF;    \r
 160         LCDM15 = partstSEGMENTS_OFF;    \r
 161         LCDM16 = partstSEGMENTS_OFF;    \r
 162         LCDM17 = partstSEGMENTS_OFF;    \r
 163         LCDM18 = partstSEGMENTS_OFF;    \r
 164         LCDM19 = partstSEGMENTS_OFF;    \r
 165         LCDM20 = partstSEGMENTS_OFF;    \r
 166 \r
 167         /* Setup LCD control. */\r
 168         LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);\r
 169 }\r
 170 /*-----------------------------------------------------------*/\r
 171 \r
 172 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
 173 {\r
 174         /* Set or clear the output [in this case show or hide the '*' character. */\r
 175         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 176         {\r
 177                 vTaskSuspendAll();\r
 178                 {\r
 179                         if( xValue )\r
 180                         {\r
 181                                 /* Turn on the segments required to show the '*'. */\r
 182                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 183                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 184                         }\r
 185                         else\r
 186                         {\r
 187                                 /* Turn off all the segments. */\r
 188                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 189                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 190                         }\r
 191                 }\r
 192                 xTaskResumeAll();\r
 193         }\r
 194 }\r
 195 /*-----------------------------------------------------------*/\r
 196 \r
 197 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 198 {\r
 199         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 200         {\r
 201                 vTaskSuspendAll();\r
 202                 {\r
 203                         /* If the '*' is already showing - hide it.  If it is not already\r
 204                         showing then show it. */\r
 205                         if( *( ucRHSSegments[ uxLED ] ) )\r
 206                         {\r
 207                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 208                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 209                         }\r
 210                         else\r
 211                         {\r
 212                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 213                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 214                         }\r
 215                 }\r
 216                 xTaskResumeAll();\r
 217         }\r
 218         else\r
 219         {\r
 220                 if( uxLED == partstON_BOARD_LED )\r
 221                 {\r
 222                         /* The request related to the genuine on board LED. */\r
 223                         prvToggleOnBoardLED();\r
 224                 }\r
 225         }       \r
 226 }\r
 227 /*-----------------------------------------------------------*/\r
 228 \r
 229 static void prvToggleOnBoardLED( void )\r
 230 {\r
 231 static unsigned short sState = pdFALSE;\r
 232 \r
 233         /* Toggle the state of the single genuine on board LED. */\r
 234         if( sState )    \r
 235         {\r
 236                 P1OUT |= mainON_BOARD_LED_BIT;\r
 237         }\r
 238         else\r
 239         {\r
 240                 P1OUT &= ~mainON_BOARD_LED_BIT;\r
 241         }\r
 242 \r
 243         sState = !sState;\r
 244 }\r
 245 /*-----------------------------------------------------------*/\r
 246 \r
 247 \r