git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/PIC18_MPLAB/ParTest/ParTest.c

   1 /*\r
   2     FreeRTOS V8.2.0rc1 - 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     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     >>!   NOTE: The modification to the GPL is included to allow you to     !<<\r
  14     >>!   distribute a combined work that includes FreeRTOS without being   !<<\r
  15     >>!   obliged to provide the source code for proprietary components     !<<\r
  16     >>!   outside of the FreeRTOS kernel.                                   !<<\r
  17 \r
  18     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  19     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  20     FOR A PARTICULAR PURPOSE.  Full license text is available on the following\r
  21     link: http://www.freertos.org/a00114.html\r
  22 \r
  23     1 tab == 4 spaces!\r
  24 \r
  25     ***************************************************************************\r
  26      *                                                                       *\r
  27      *    Having a problem?  Start by reading the FAQ "My application does   *\r
  28      *    not run, what could be wrong?".  Have you defined configASSERT()?  *\r
  29      *                                                                       *\r
  30      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
  31      *                                                                       *\r
  32     ***************************************************************************\r
  33 \r
  34     ***************************************************************************\r
  35      *                                                                       *\r
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  45      *                                                                       *\r
  46     ***************************************************************************\r
  47 \r
  48     ***************************************************************************\r
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  54      *   the architect and key author of FreeRTOS, and so also the world's   *\r
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  61      *                                                                       *\r
  62     ***************************************************************************\r
  63 \r
  64     ***************************************************************************\r
  65      *                                                                       *\r
  66      *    You are receiving this top quality software for free.  Please play *\r
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  73     ***************************************************************************\r
  74 \r
  75     http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
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  77 \r
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  79     including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
  80     compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
  81 \r
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  90     engineered and independently SIL3 certified version for use in safety and\r
  91     mission critical applications that require provable dependability.\r
  92 \r
  93     1 tab == 4 spaces!\r
  94 */\r
  95 \r
  96 /* \r
  97 Changes from V2.0.0\r
  98 \r
  99         + Use scheduler suspends in place of critical sections.\r
 100 */\r
 101 \r
 102 #include "FreeRTOS.h"\r
 103 #include "task.h"\r
 104 #include "partest.h"\r
 105 \r
 106 /*-----------------------------------------------------------\r
 107  * Simple parallel port IO routines for the FED 40pin demo board.\r
 108  * The four LED's are connected to D4 to D7.\r
 109  *-----------------------------------------------------------*/\r
 110 \r
 111 #define partstBIT_AS_OUTPUT                     ( ( unsigned short ) 0 )\r
 112 #define partstSET_OUTPUT                        ( ( unsigned short ) 1 )\r
 113 #define partstCLEAR_OUTPUT                      ( ( unsigned short ) 0 )\r
 114 \r
 115 #define partstENABLE_GENERAL_IO         ( ( unsigned char ) 7 )\r
 116 \r
 117 /*-----------------------------------------------------------*/\r
 118 \r
 119 void vParTestInitialise( void )\r
 120 {\r
 121         /* Set the top four bits of port D to output. */\r
 122         TRISDbits.TRISD7 = partstBIT_AS_OUTPUT;\r
 123         TRISDbits.TRISD6 = partstBIT_AS_OUTPUT;\r
 124         TRISDbits.TRISD5 = partstBIT_AS_OUTPUT;\r
 125         TRISDbits.TRISD4 = partstBIT_AS_OUTPUT;\r
 126 \r
 127         /* Start with all bits off. */\r
 128         PORTDbits.RD7 = partstCLEAR_OUTPUT;\r
 129         PORTDbits.RD6 = partstCLEAR_OUTPUT;\r
 130         PORTDbits.RD5 = partstCLEAR_OUTPUT;\r
 131         PORTDbits.RD4 = partstCLEAR_OUTPUT;\r
 132 \r
 133         /* Enable the driver. */\r
 134         ADCON1 = partstENABLE_GENERAL_IO;\r
 135         TRISEbits.TRISE2 = partstBIT_AS_OUTPUT;\r
 136         PORTEbits.RE2 = partstSET_OUTPUT;       \r
 137 }\r
 138 /*-----------------------------------------------------------*/\r
 139 \r
 140 void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )\r
 141 {\r
 142         /* We are only using the top nibble, so LED 0 corresponds to bit 4. */  \r
 143         vTaskSuspendAll();\r
 144         {\r
 145                 switch( uxLED )\r
 146                 {\r
 147                         case 3  :       PORTDbits.RD7 = ( short ) xValue;\r
 148                                                 break;\r
 149                         case 2  :       PORTDbits.RD6 = ( short ) xValue;\r
 150                                                 break;\r
 151                         case 1  :       PORTDbits.RD5 = ( short ) xValue;\r
 152                                                 break;\r
 153                         case 0  :       PORTDbits.RD4 = ( short ) xValue;\r
 154                                                 break;\r
 155                         default :       /* There are only 4 LED's. */\r
 156                                                 break;\r
 157                 }\r
 158         }\r
 159         xTaskResumeAll();\r
 160 }\r
 161 /*-----------------------------------------------------------*/\r
 162 \r
 163 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 164 {\r
 165         /* We are only using the top nibble, so LED 0 corresponds to bit 4. */  \r
 166         vTaskSuspendAll();\r
 167         {\r
 168                 switch( uxLED )\r
 169                 {\r
 170                         case 3  :       PORTDbits.RD7 = !( PORTDbits.RD7 );\r
 171                                                 break;\r
 172                         case 2  :       PORTDbits.RD6 = !( PORTDbits.RD6 );\r
 173                                                 break;\r
 174                         case 1  :       PORTDbits.RD5 = !( PORTDbits.RD5 );\r
 175                                                 break;\r
 176                         case 0  :       PORTDbits.RD4 = !( PORTDbits.RD4 );\r
 177                                                 break;\r
 178                         default :       /* There are only 4 LED's. */\r
 179                                                 break;\r
 180                 }\r
 181         }\r
 182         xTaskResumeAll();\r
 183 }\r
 184 \r
 185 \r
 186 \r