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

   1 /*\r
   2     FreeRTOS V8.1.0 - Copyright (C) 2014 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     ***************************************************************************\r
   8      *                                                                       *\r
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  11      *    platform software that has become a de facto standard.             *\r
  12      *                                                                       *\r
  13      *    Help yourself get started quickly and support the FreeRTOS         *\r
  14      *    project by purchasing a FreeRTOS tutorial book, reference          *\r
  15      *    manual, or both from: http://www.FreeRTOS.org/Documentation        *\r
  16      *                                                                       *\r
  17      *    Thank you!                                                         *\r
  18      *                                                                       *\r
  19     ***************************************************************************\r
  20 \r
  21     This file is part of the FreeRTOS distribution.\r
  22 \r
  23     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  24     the terms of the GNU General Public License (version 2) as published by the\r
  25     Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
  26 \r
  27     >>!   NOTE: The modification to the GPL is included to allow you to     !<<\r
  28     >>!   distribute a combined work that includes FreeRTOS without being   !<<\r
  29     >>!   obliged to provide the source code for proprietary components     !<<\r
  30     >>!   outside of the FreeRTOS kernel.                                   !<<\r
  31 \r
  32     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  33     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  34     FOR A PARTICULAR PURPOSE.  Full license text is available from the following\r
  35     link: http://www.freertos.org/a00114.html\r
  36 \r
  37     1 tab == 4 spaces!\r
  38 \r
  39     ***************************************************************************\r
  40      *                                                                       *\r
  41      *    Having a problem?  Start by reading the FAQ "My application does   *\r
  42      *    not run, what could be wrong?"                                     *\r
  43      *                                                                       *\r
  44      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
  45      *                                                                       *\r
  46     ***************************************************************************\r
  47 \r
  48     http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
  49     license and Real Time Engineers Ltd. contact details.\r
  50 \r
  51     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
  52     including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
  53     compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
  54 \r
  55     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
  56     Integrity Systems to sell under the OpenRTOS brand.  Low cost OpenRTOS\r
  57     licenses offer ticketed support, indemnification and middleware.\r
  58 \r
  59     http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
  60     engineered and independently SIL3 certified version for use in safety and\r
  61     mission critical applications that require provable dependability.\r
  62 \r
  63     1 tab == 4 spaces!\r
  64 */\r
  65 \r
  66 /*-----------------------------------------------------------\r
  67  * Characters on the LCD are used to simulate LED's.  In this case the 'ParTest'\r
  68  * is really operating on the LCD display.\r
  69  *-----------------------------------------------------------*/\r
  70 \r
  71 /*\r
  72  * This demo is configured to execute on the ES449 prototyping board from\r
  73  * SoftBaugh. The ES449 has a built in LCD display and a single built in user\r
  74  * LED.  Therefore, in place of flashing an LED, the 'flash' and 'check' tasks\r
  75  * toggle '*' characters on the LCD.  The left most '*' represents LED 0, the\r
  76  * next LED 1, etc.\r
  77  *\r
  78  * There is a single genuine on board LED referenced as LED 10.\r
  79  */\r
  80 \r
  81 /* Standard includes. */\r
  82 #include <signal.h>\r
  83 \r
  84 /* Scheduler includes. */\r
  85 #include "FreeRTOS.h"\r
  86 #include "task.h"\r
  87 \r
  88 /* Demo application includes. */\r
  89 #include "partest.h"\r
  90 \r
  91 /* Constants required to setup the LCD. */\r
  92 #define LCD_DIV_64 5\r
  93 \r
  94 /* Constants required to access the "LED's".  The LED segments are turned on\r
  95 and off to generate '*' characters. */\r
  96 #define partstNUM_LEDS                  ( ( unsigned char ) 6 )\r
  97 #define partstSEGMENTS_ON               ( ( unsigned char ) 0x0f )\r
  98 #define partstSEGMENTS_OFF              ( ( unsigned char ) 0x00 )\r
  99 \r
 100 /* The LED number of the real on board LED, rather than a simulated LED. */\r
 101 #define partstON_BOARD_LED              ( ( unsigned portBASE_TYPE ) 10 )\r
 102 #define mainON_BOARD_LED_BIT    ( ( unsigned char ) 0x01 )\r
 103 \r
 104 /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */\r
 105 unsigned char * const ucRHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa4, \r
 106                                                                                                                                 ( unsigned char * )0xa2, \r
 107                                                                                                                                 ( unsigned char * )0xa0, \r
 108                                                                                                                                 ( unsigned char * )0x9e,\r
 109                                                                                                                                 ( unsigned char * )0x9c,\r
 110                                                                                                                                 ( unsigned char * )0x9a };\r
 111 \r
 112 unsigned char * const ucLHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa3, \r
 113                                                                                                                                 ( unsigned char * )0xa1, \r
 114                                                                                                                                 ( unsigned char * )0x9f, \r
 115                                                                                                                                 ( unsigned char * )0x9d,\r
 116                                                                                                                                 ( unsigned char * )0x9b,\r
 117                                                                                                                                 ( unsigned char * )0x99 };\r
 118 \r
 119 /*\r
 120  * Toggle the single genuine built in LED.\r
 121  */\r
 122 static void prvToggleOnBoardLED( void );\r
 123 \r
 124 /*-----------------------------------------------------------*/\r
 125 \r
 126 void vParTestInitialise( void )\r
 127 {\r
 128         /* Initialise the LCD hardware. */\r
 129 \r
 130         /* Used for the onboard LED. */\r
 131         P1DIR = 0x01;\r
 132 \r
 133         // Setup Basic Timer for LCD operation\r
 134         BTCTL = (LCD_DIV_64+0x23);\r
 135 \r
 136         // Setup port functions\r
 137         P1SEL = 0x32;\r
 138         P2SEL = 0x00;\r
 139         P3SEL = 0x00;\r
 140         P4SEL = 0xFC;\r
 141         P5SEL = 0xFF;\r
 142         \r
 143         /* Initialise all segments to off. */\r
 144         LCDM1 = partstSEGMENTS_OFF;     \r
 145         LCDM2 = partstSEGMENTS_OFF;     \r
 146         LCDM3 = partstSEGMENTS_OFF;     \r
 147         LCDM4 = partstSEGMENTS_OFF;     \r
 148         LCDM5 = partstSEGMENTS_OFF;     \r
 149         LCDM6 = partstSEGMENTS_OFF;     \r
 150         LCDM7 = partstSEGMENTS_OFF;     \r
 151         LCDM8 = partstSEGMENTS_OFF;     \r
 152         LCDM9 = partstSEGMENTS_OFF;     \r
 153         LCDM10 = partstSEGMENTS_OFF;    \r
 154         LCDM11 = partstSEGMENTS_OFF;    \r
 155         LCDM12 = partstSEGMENTS_OFF;    \r
 156         LCDM13 = partstSEGMENTS_OFF;    \r
 157         LCDM14 = partstSEGMENTS_OFF;    \r
 158         LCDM15 = partstSEGMENTS_OFF;    \r
 159         LCDM16 = partstSEGMENTS_OFF;    \r
 160         LCDM17 = partstSEGMENTS_OFF;    \r
 161         LCDM18 = partstSEGMENTS_OFF;    \r
 162         LCDM19 = partstSEGMENTS_OFF;    \r
 163         LCDM20 = partstSEGMENTS_OFF;    \r
 164 \r
 165         /* Setup LCD control. */\r
 166         LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);\r
 167 }\r
 168 /*-----------------------------------------------------------*/\r
 169 \r
 170 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
 171 {\r
 172         /* Set or clear the output [in this case show or hide the '*' character. */\r
 173         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 174         {\r
 175                 vTaskSuspendAll();\r
 176                 {\r
 177                         if( xValue )\r
 178                         {\r
 179                                 /* Turn on the segments required to show the '*'. */\r
 180                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 181                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 182                         }\r
 183                         else\r
 184                         {\r
 185                                 /* Turn off all the segments. */\r
 186                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 187                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 188                         }\r
 189                 }\r
 190                 xTaskResumeAll();\r
 191         }\r
 192 }\r
 193 /*-----------------------------------------------------------*/\r
 194 \r
 195 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 196 {\r
 197         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 198         {\r
 199                 vTaskSuspendAll();\r
 200                 {\r
 201                         /* If the '*' is already showing - hide it.  If it is not already\r
 202                         showing then show it. */\r
 203                         if( *( ucRHSSegments[ uxLED ] ) )\r
 204                         {\r
 205                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 206                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 207                         }\r
 208                         else\r
 209                         {\r
 210                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 211                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 212                         }\r
 213                 }\r
 214                 xTaskResumeAll();\r
 215         }\r
 216         else\r
 217         {\r
 218                 if( uxLED == partstON_BOARD_LED )\r
 219                 {\r
 220                         /* The request related to the genuine on board LED. */\r
 221                         prvToggleOnBoardLED();\r
 222                 }\r
 223         }       \r
 224 }\r
 225 /*-----------------------------------------------------------*/\r
 226 \r
 227 static void prvToggleOnBoardLED( void )\r
 228 {\r
 229 static unsigned short sState = pdFALSE;\r
 230 \r
 231         /* Toggle the state of the single genuine on board LED. */\r
 232         if( sState )    \r
 233         {\r
 234                 P1OUT |= mainON_BOARD_LED_BIT;\r
 235         }\r
 236         else\r
 237         {\r
 238                 P1OUT &= ~mainON_BOARD_LED_BIT;\r
 239         }\r
 240 \r
 241         sState = !sState;\r
 242 }\r
 243 /*-----------------------------------------------------------*/\r
 244 \r
 245 \r