git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/CORTEX_LM3S316_IAR/ParTest/ParTest.c

   1 /*\r
   2     FreeRTOS V7.6.0 - Copyright (C) 2013 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
   9      *    FreeRTOS provides completely free yet professionally developed,    *\r
  10      *    robust, strictly quality controlled, supported, and cross          *\r
  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 distribute\r
  28     >>! a combined work that includes FreeRTOS without being obliged to provide\r
  29     >>! the source code for proprietary components outside of the FreeRTOS\r
  30     >>! 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  * Simple parallel port IO routines.\r
  68  *-----------------------------------------------------------*/\r
  69 \r
  70 /*\r
  71 */\r
  72 \r
  73 \r
  74 #include "FreeRTOS.h"\r
  75 #include "task.h"\r
  76 #include "partest.h"\r
  77 \r
  78 #include "pdc.h"\r
  79 \r
  80 #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
  81 \r
  82 #define partstALL_OUTPUTS_OFF   ( ( unsigned char ) 0x00 )\r
  83 #define partstMAX_OUTPUT_LED    ( ( unsigned char ) 8 )\r
  84 \r
  85 static volatile unsigned char ucOutputValue = partstALL_OUTPUTS_OFF;\r
  86 \r
  87 void vParTestInitialise( void )\r
  88 {\r
  89         PDCInit();\r
  90         PDCWrite( PDC_LED, ucOutputValue );\r
  91 }\r
  92 /*-----------------------------------------------------------*/\r
  93 \r
  94 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
  95 {\r
  96 unsigned char ucBit = ( unsigned char ) 1;\r
  97 \r
  98         vTaskSuspendAll();\r
  99         {\r
 100                 if( uxLED < partstMAX_OUTPUT_LED )\r
 101                 {\r
 102                         ucBit = ( ( unsigned char ) 1 ) << uxLED;\r
 103 \r
 104                         if( xValue == pdFALSE )\r
 105                         {\r
 106                                 ucBit ^= ( unsigned char ) 0xff;\r
 107                                 ucOutputValue &= ucBit;\r
 108                         }\r
 109                         else\r
 110                         {\r
 111                                 ucOutputValue |= ucBit;\r
 112                         }\r
 113 \r
 114                         PDCWrite( PDC_LED, ucOutputValue );\r
 115                 }       \r
 116         }\r
 117         xTaskResumeAll();\r
 118 }\r
 119 /*-----------------------------------------------------------*/\r
 120 \r
 121 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 122 {\r
 123 unsigned char ucBit;\r
 124 \r
 125         vTaskSuspendAll();\r
 126         {\r
 127                 if( uxLED < partstMAX_OUTPUT_LED )\r
 128                 {\r
 129                         ucBit = ( ( unsigned char ) 1 ) << uxLED;\r
 130 \r
 131                         if( ucOutputValue & ucBit )\r
 132                         {\r
 133                                 ucOutputValue &= ~ucBit;\r
 134                         }\r
 135                         else\r
 136                         {\r
 137                                 ucOutputValue |= ucBit;\r
 138                         }\r
 139 \r
 140                         PDCWrite( PDC_LED, ucOutputValue );\r
 141                 }\r
 142         }\r
 143         xTaskResumeAll();\r
 144 }\r
 145 \r