git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/CORTEX_LM3S102_Rowley/Demo2/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
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  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
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  24 \r
  25     ***************************************************************************\r
  26      *                                                                       *\r
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  63 \r
  64     ***************************************************************************\r
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  92 \r
  93     1 tab == 4 spaces!\r
  94 */\r
  95 \r
  96 /*-----------------------------------------------------------\r
  97  * Simple parallel port IO routines.\r
  98  *-----------------------------------------------------------*/\r
  99 \r
 100 /*\r
 101 */\r
 102 \r
 103 \r
 104 #include "FreeRTOS.h"\r
 105 #include "task.h"\r
 106 #include "partest.h"\r
 107 \r
 108 #include "pdc.h"\r
 109 \r
 110 #define partstPINS      (GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 Z | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7)\r
 111 \r
 112 #define partstALL_OUTPUTS_OFF   ( ( unsigned char ) 0x00 )\r
 113 #define partstMAX_OUTPUT_LED    ( ( unsigned char ) 8 )\r
 114 \r
 115 static volatile unsigned char ucOutputValue = partstALL_OUTPUTS_OFF;\r
 116 \r
 117 void vParTestInitialise( void )\r
 118 {\r
 119         PDCInit();\r
 120         PDCWrite( PDC_LED, ucOutputValue );\r
 121 }\r
 122 /*-----------------------------------------------------------*/\r
 123 \r
 124 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
 125 {\r
 126 unsigned char ucBit = ( unsigned char ) 1;\r
 127 \r
 128         vTaskSuspendAll();\r
 129         {\r
 130                 if( uxLED < partstMAX_OUTPUT_LED )\r
 131                 {\r
 132                         ucBit = ( ( unsigned char ) 1 ) << uxLED;\r
 133 \r
 134                         if( xValue == pdFALSE )\r
 135                         {\r
 136                                 ucBit ^= ( unsigned char ) 0xff;\r
 137                                 ucOutputValue &= ucBit;\r
 138                         }\r
 139                         else\r
 140                         {\r
 141                                 ucOutputValue |= ucBit;\r
 142                         }\r
 143 \r
 144                         PDCWrite( PDC_LED, ucOutputValue );\r
 145                 }       \r
 146         }\r
 147         xTaskResumeAll();\r
 148 }\r
 149 /*-----------------------------------------------------------*/\r
 150 \r
 151 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 152 {\r
 153 unsigned char ucBit;\r
 154 \r
 155         vTaskSuspendAll();\r
 156         {\r
 157                 if( uxLED < partstMAX_OUTPUT_LED )\r
 158                 {\r
 159                         ucBit = ( ( unsigned char ) 1 ) << uxLED;\r
 160 \r
 161                         if( ucOutputValue & ucBit )\r
 162                         {\r
 163                                 ucOutputValue &= ~ucBit;\r
 164                         }\r
 165                         else\r
 166                         {\r
 167                                 ucOutputValue |= ucBit;\r
 168                         }\r
 169 \r
 170                         PDCWrite( PDC_LED, ucOutputValue );\r
 171                 }\r
 172         }\r
 173         xTaskResumeAll();\r
 174 }\r
 175 \r