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

   1 /*\r
   2     FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.\r
   3 \r
   4     FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME.  PLEASE VISIT\r
   5     http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
   6 \r
   7     ***************************************************************************\r
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  15      *    in-depth knowledge of how to use FreeRTOS, it will also help       *\r
  16      *    the FreeRTOS project to continue with its mission of providing     *\r
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  23      *                                                                       *\r
  24     ***************************************************************************\r
  25 \r
  26 \r
  27     This file is part of the FreeRTOS distribution.\r
  28 \r
  29     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  30     the terms of the GNU General Public License (version 2) as published by the\r
  31     Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
  32 \r
  33     >>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to\r
  34     distribute a combined work that includes FreeRTOS without being obliged to\r
  35     provide the source code for proprietary components outside of the FreeRTOS\r
  36     kernel.\r
  37 \r
  38     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  39     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  40     FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more\r
  41     details. You should have received a copy of the GNU General Public License\r
  42     and the FreeRTOS license exception along with FreeRTOS; if not itcan be\r
  43     viewed here: http://www.freertos.org/a00114.html and also obtained by\r
  44     writing to Real Time Engineers Ltd., contact details for whom are available\r
  45     on the FreeRTOS WEB site.\r
  46 \r
  47     1 tab == 4 spaces!\r
  48 \r
  49     ***************************************************************************\r
  50      *                                                                       *\r
  51      *    Having a problem?  Start by reading the FAQ "My application does   *\r
  52      *    not run, what could be wrong?"                                     *\r
  53      *                                                                       *\r
  54      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
  55      *                                                                       *\r
  56     ***************************************************************************\r
  57 \r
  58 \r
  59     http://www.FreeRTOS.org - Documentation, books, training, latest versions, \r
  60     license and Real Time Engineers Ltd. contact details.\r
  61 \r
  62     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
  63     including FreeRTOS+Trace - an indispensable productivity tool, and our new\r
  64     fully thread aware and reentrant UDP/IP stack.\r
  65 \r
  66     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High \r
  67     Integrity Systems, who sell the code with commercial support, \r
  68     indemnification and middleware, under the OpenRTOS brand.\r
  69     \r
  70     http://www.SafeRTOS.com - High Integrity Systems also provide a safety \r
  71     engineered and independently SIL3 certified version for use in safety and \r
  72     mission critical applications that require provable dependability.\r
  73 */\r
  74 \r
  75 /*-----------------------------------------------------------\r
  76  * Characters on the LCD are used to simulate LED's.  In this case the 'ParTest'\r
  77  * is really operating on the LCD display.\r
  78  *-----------------------------------------------------------*/\r
  79 \r
  80 /*\r
  81  * This demo is configured to execute on the ES449 prototyping board from\r
  82  * SoftBaugh. The ES449 has a built in LCD display and a single built in user\r
  83  * LED.  Therefore, in place of flashing an LED, the 'flash' and 'check' tasks\r
  84  * toggle '*' characters on the LCD.  The left most '*' represents LED 0, the\r
  85  * next LED 1, etc.\r
  86  *\r
  87  * There is a single genuine on board LED referenced as LED 10.\r
  88  */\r
  89 \r
  90 /* Standard includes. */\r
  91 #include <signal.h>\r
  92 \r
  93 /* Scheduler includes. */\r
  94 #include "FreeRTOS.h"\r
  95 #include "task.h"\r
  96 \r
  97 /* Demo application includes. */\r
  98 #include "partest.h"\r
  99 \r
 100 /* Constants required to setup the LCD. */\r
 101 #define LCD_DIV_64 5\r
 102 \r
 103 /* Constants required to access the "LED's".  The LED segments are turned on\r
 104 and off to generate '*' characters. */\r
 105 #define partstNUM_LEDS                  ( ( unsigned char ) 6 )\r
 106 #define partstSEGMENTS_ON               ( ( unsigned char ) 0x0f )\r
 107 #define partstSEGMENTS_OFF              ( ( unsigned char ) 0x00 )\r
 108 \r
 109 /* The LED number of the real on board LED, rather than a simulated LED. */\r
 110 #define partstON_BOARD_LED              ( ( unsigned portBASE_TYPE ) 10 )\r
 111 #define mainON_BOARD_LED_BIT    ( ( unsigned char ) 0x01 )\r
 112 \r
 113 /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */\r
 114 unsigned char * const ucRHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa4, \r
 115                                                                                                                                 ( unsigned char * )0xa2, \r
 116                                                                                                                                 ( unsigned char * )0xa0, \r
 117                                                                                                                                 ( unsigned char * )0x9e,\r
 118                                                                                                                                 ( unsigned char * )0x9c,\r
 119                                                                                                                                 ( unsigned char * )0x9a };\r
 120 \r
 121 unsigned char * const ucLHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa3, \r
 122                                                                                                                                 ( unsigned char * )0xa1, \r
 123                                                                                                                                 ( unsigned char * )0x9f, \r
 124                                                                                                                                 ( unsigned char * )0x9d,\r
 125                                                                                                                                 ( unsigned char * )0x9b,\r
 126                                                                                                                                 ( unsigned char * )0x99 };\r
 127 \r
 128 /*\r
 129  * Toggle the single genuine built in LED.\r
 130  */\r
 131 static void prvToggleOnBoardLED( void );\r
 132 \r
 133 /*-----------------------------------------------------------*/\r
 134 \r
 135 void vParTestInitialise( void )\r
 136 {\r
 137         /* Initialise the LCD hardware. */\r
 138 \r
 139         /* Used for the onboard LED. */\r
 140         P1DIR = 0x01;\r
 141 \r
 142         // Setup Basic Timer for LCD operation\r
 143         BTCTL = (LCD_DIV_64+0x23);\r
 144 \r
 145         // Setup port functions\r
 146         P1SEL = 0x32;\r
 147         P2SEL = 0x00;\r
 148         P3SEL = 0x00;\r
 149         P4SEL = 0xFC;\r
 150         P5SEL = 0xFF;\r
 151         \r
 152         /* Initialise all segments to off. */\r
 153         LCDM1 = partstSEGMENTS_OFF;     \r
 154         LCDM2 = partstSEGMENTS_OFF;     \r
 155         LCDM3 = partstSEGMENTS_OFF;     \r
 156         LCDM4 = partstSEGMENTS_OFF;     \r
 157         LCDM5 = partstSEGMENTS_OFF;     \r
 158         LCDM6 = partstSEGMENTS_OFF;     \r
 159         LCDM7 = partstSEGMENTS_OFF;     \r
 160         LCDM8 = partstSEGMENTS_OFF;     \r
 161         LCDM9 = partstSEGMENTS_OFF;     \r
 162         LCDM10 = partstSEGMENTS_OFF;    \r
 163         LCDM11 = partstSEGMENTS_OFF;    \r
 164         LCDM12 = partstSEGMENTS_OFF;    \r
 165         LCDM13 = partstSEGMENTS_OFF;    \r
 166         LCDM14 = partstSEGMENTS_OFF;    \r
 167         LCDM15 = partstSEGMENTS_OFF;    \r
 168         LCDM16 = partstSEGMENTS_OFF;    \r
 169         LCDM17 = partstSEGMENTS_OFF;    \r
 170         LCDM18 = partstSEGMENTS_OFF;    \r
 171         LCDM19 = partstSEGMENTS_OFF;    \r
 172         LCDM20 = partstSEGMENTS_OFF;    \r
 173 \r
 174         /* Setup LCD control. */\r
 175         LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);\r
 176 }\r
 177 /*-----------------------------------------------------------*/\r
 178 \r
 179 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
 180 {\r
 181         /* Set or clear the output [in this case show or hide the '*' character. */\r
 182         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 183         {\r
 184                 vTaskSuspendAll();\r
 185                 {\r
 186                         if( xValue )\r
 187                         {\r
 188                                 /* Turn on the segments required to show the '*'. */\r
 189                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 190                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 191                         }\r
 192                         else\r
 193                         {\r
 194                                 /* Turn off all the segments. */\r
 195                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 196                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 197                         }\r
 198                 }\r
 199                 xTaskResumeAll();\r
 200         }\r
 201 }\r
 202 /*-----------------------------------------------------------*/\r
 203 \r
 204 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 205 {\r
 206         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 207         {\r
 208                 vTaskSuspendAll();\r
 209                 {\r
 210                         /* If the '*' is already showing - hide it.  If it is not already\r
 211                         showing then show it. */\r
 212                         if( *( ucRHSSegments[ uxLED ] ) )\r
 213                         {\r
 214                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 215                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 216                         }\r
 217                         else\r
 218                         {\r
 219                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 220                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 221                         }\r
 222                 }\r
 223                 xTaskResumeAll();\r
 224         }\r
 225         else\r
 226         {\r
 227                 if( uxLED == partstON_BOARD_LED )\r
 228                 {\r
 229                         /* The request related to the genuine on board LED. */\r
 230                         prvToggleOnBoardLED();\r
 231                 }\r
 232         }       \r
 233 }\r
 234 /*-----------------------------------------------------------*/\r
 235 \r
 236 static void prvToggleOnBoardLED( void )\r
 237 {\r
 238 static unsigned short sState = pdFALSE;\r
 239 \r
 240         /* Toggle the state of the single genuine on board LED. */\r
 241         if( sState )    \r
 242         {\r
 243                 P1OUT |= mainON_BOARD_LED_BIT;\r
 244         }\r
 245         else\r
 246         {\r
 247                 P1OUT &= ~mainON_BOARD_LED_BIT;\r
 248         }\r
 249 \r
 250         sState = !sState;\r
 251 }\r
 252 /*-----------------------------------------------------------*/\r
 253 \r
 254 \r