git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/CORTEX_LM3S102_Rowley/Demo2/ParTest.c

   1 /*\r
   2     FreeRTOS V7.5.0 - Copyright (C) 2013 Real Time Engineers Ltd.\r
   3 \r
   4     VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
   5 \r
   6     ***************************************************************************\r
   7      *                                                                       *\r
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  14      *    manual, or both from: http://www.FreeRTOS.org/Documentation        *\r
  15      *                                                                       *\r
  16      *    Thank you!                                                         *\r
  17      *                                                                       *\r
  18     ***************************************************************************\r
  19 \r
  20     This file is part of the FreeRTOS distribution.\r
  21 \r
  22     FreeRTOS is free software; you can redistribute it and/or modify it under\r
  23     the terms of the GNU General Public License (version 2) as published by the\r
  24     Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
  25 \r
  26     >>! NOTE: The modification to the GPL is included to allow you to distribute\r
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  28     >>! the source code for proprietary components outside of the FreeRTOS\r
  29     >>! kernel.\r
  30 \r
  31     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
  32     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
  33     FOR A PARTICULAR PURPOSE.  Full license text is available from the following\r
  34     link: http://www.freertos.org/a00114.html\r
  35 \r
  36     1 tab == 4 spaces!\r
  37 \r
  38     ***************************************************************************\r
  39      *                                                                       *\r
  40      *    Having a problem?  Start by reading the FAQ "My application does   *\r
  41      *    not run, what could be wrong?"                                     *\r
  42      *                                                                       *\r
  43      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
  44      *                                                                       *\r
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  46 \r
  47     http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
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  49 \r
  50     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
  51     including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
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  53 \r
  54     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
  55     Integrity Systems to sell under the OpenRTOS brand.  Low cost OpenRTOS\r
  56     licenses offer ticketed support, indemnification and middleware.\r
  57 \r
  58     http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
  59     engineered and independently SIL3 certified version for use in safety and\r
  60     mission critical applications that require provable dependability.\r
  61 \r
  62     1 tab == 4 spaces!\r
  63 */\r
  64 \r
  65 /*-----------------------------------------------------------\r
  66  * Simple parallel port IO routines.\r
  67  *-----------------------------------------------------------*/\r
  68 \r
  69 /*\r
  70 */\r
  71 \r
  72 \r
  73 #include "FreeRTOS.h"\r
  74 #include "task.h"\r
  75 #include "partest.h"\r
  76 \r
  77 #include "pdc.h"\r
  78 \r
  79 #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
  80 \r
  81 #define partstALL_OUTPUTS_OFF   ( ( unsigned char ) 0x00 )\r
  82 #define partstMAX_OUTPUT_LED    ( ( unsigned char ) 8 )\r
  83 \r
  84 static volatile unsigned char ucOutputValue = partstALL_OUTPUTS_OFF;\r
  85 \r
  86 void vParTestInitialise( void )\r
  87 {\r
  88         PDCInit();\r
  89         PDCWrite( PDC_LED, ucOutputValue );\r
  90 }\r
  91 /*-----------------------------------------------------------*/\r
  92 \r
  93 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
  94 {\r
  95 unsigned char ucBit = ( unsigned char ) 1;\r
  96 \r
  97         vTaskSuspendAll();\r
  98         {\r
  99                 if( uxLED < partstMAX_OUTPUT_LED )\r
 100                 {\r
 101                         ucBit = ( ( unsigned char ) 1 ) << uxLED;\r
 102 \r
 103                         if( xValue == pdFALSE )\r
 104                         {\r
 105                                 ucBit ^= ( unsigned char ) 0xff;\r
 106                                 ucOutputValue &= ucBit;\r
 107                         }\r
 108                         else\r
 109                         {\r
 110                                 ucOutputValue |= ucBit;\r
 111                         }\r
 112 \r
 113                         PDCWrite( PDC_LED, ucOutputValue );\r
 114                 }       \r
 115         }\r
 116         xTaskResumeAll();\r
 117 }\r
 118 /*-----------------------------------------------------------*/\r
 119 \r
 120 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 121 {\r
 122 unsigned char ucBit;\r
 123 \r
 124         vTaskSuspendAll();\r
 125         {\r
 126                 if( uxLED < partstMAX_OUTPUT_LED )\r
 127                 {\r
 128                         ucBit = ( ( unsigned char ) 1 ) << uxLED;\r
 129 \r
 130                         if( ucOutputValue & ucBit )\r
 131                         {\r
 132                                 ucOutputValue &= ~ucBit;\r
 133                         }\r
 134                         else\r
 135                         {\r
 136                                 ucOutputValue |= ucBit;\r
 137                         }\r
 138 \r
 139                         PDCWrite( PDC_LED, ucOutputValue );\r
 140                 }\r
 141         }\r
 142         xTaskResumeAll();\r
 143 }\r
 144 \r