git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/CORTEX_R4_RM48_TMS570_CCS5/Library/het.c

   1 /*\r
   2     FreeRTOS V7.5.3 - 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 #include "FreeRTOS.h"\r
  67 #include "Task.h"\r
  68 #include "gio.h"\r
  69 #include "het.h"\r
  70 \r
  71 /*\r
  72  * Task that flashes the LEDS on the USB stick.\r
  73  *\r
  74  * This task is also run in Thumb mode to test the ARM/THUMB context switch\r
  75  */\r
  76 \r
  77 #pragma TASK(vLedTask)\r
  78 #pragma CODE_STATE(vLedTask, 16)\r
  79 \r
  80 void vLedTask(void *pvParameters)\r
  81 {\r
  82         unsigned led    = 0;\r
  83         unsigned count  = 0;\r
  84         unsigned colour = 0;\r
  85 \r
  86         /* Initalise the IO ports that drive the LEDs */\r
  87         gioSetDirection(hetPORT, 0xFFFFFFFF);\r
  88         /* switch all leds off */\r
  89         gioSetPort(hetPORT, 0x08110034);\r
  90 \r
  91         for(;;)\r
  92         {\r
  93                 /* toggle on/off */\r
  94                 led ^= 1;\r
  95                 /* switch TOP row */\r
  96                 gioSetBit(hetPORT, 25, led);\r
  97                 gioSetBit(hetPORT, 18, led);\r
  98                 gioSetBit(hetPORT, 29, led);\r
  99                 /* switch BOTTOM row */\r
 100                 gioSetBit(hetPORT, 17, led ^ 1);\r
 101                 gioSetBit(hetPORT, 31, led ^ 1);\r
 102                 gioSetBit(hetPORT,  0, led ^ 1);\r
 103                 vTaskDelay(500);\r
 104 \r
 105                 if (++count > 5)\r
 106                 {\r
 107                         count = 0;\r
 108                         /* both leds to off */\r
 109                         gioSetBit(hetPORT, 2, 1);  gioSetBit(hetPORT,  5, 1);  gioSetBit(hetPORT, 20, 1);\r
 110                         gioSetBit(hetPORT, 4, 1);  gioSetBit(hetPORT, 27, 1);  gioSetBit(hetPORT, 16, 1);\r
 111                         switch(colour)\r
 112                         {\r
 113                         case 0:\r
 114                                 gioSetBit(hetPORT, 2, 0);  /* red */\r
 115                                 gioSetBit(hetPORT, 4, 0);\r
 116                                 colour++;\r
 117                                 continue;\r
 118                         case 1:\r
 119                                 gioSetBit(hetPORT,  5, 0);  /* blue */\r
 120                                 gioSetBit(hetPORT, 27, 0);\r
 121                                 colour++;\r
 122                                 continue;\r
 123                         case 2:\r
 124                                 gioSetBit(hetPORT, 20, 0);  /* green */\r
 125                                 gioSetBit(hetPORT, 16, 0);\r
 126                                 colour++;\r
 127                                 continue;\r
 128                         }\r
 129                         colour = 0;\r
 130                 }\r
 131         }\r
 132 }\r
 133 \r