git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/msp430_GCC/ParTest/ParTest.c

   1 /*\r
   2  * FreeRTOS Kernel V10.0.0\r
   3  * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.\r
   4  *\r
   5  * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
   6  * this software and associated documentation files (the "Software"), to deal in\r
   7  * the Software without restriction, including without limitation the rights to\r
   8  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
   9  * the Software, and to permit persons to whom the Software is furnished to do so,\r
  10  * subject to the following conditions:\r
  11  *\r
  12  * The above copyright notice and this permission notice shall be included in all\r
  13  * copies or substantial portions of the Software. If you wish to use our Amazon\r
  14  * FreeRTOS name, please do so in a fair use way that does not cause confusion.\r
  15  *\r
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
  18  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
  19  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
  20  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
  22  *\r
  23  * http://www.FreeRTOS.org\r
  24  * http://aws.amazon.com/freertos\r
  25  *\r
  26  * 1 tab == 4 spaces!\r
  27  */\r
  28 \r
  29 /*-----------------------------------------------------------\r
  30  * Characters on the LCD are used to simulate LED's.  In this case the 'ParTest'\r
  31  * is really operating on the LCD display.\r
  32  *-----------------------------------------------------------*/\r
  33 \r
  34 /*\r
  35  * This demo is configured to execute on the ES449 prototyping board from\r
  36  * SoftBaugh. The ES449 has a built in LCD display and a single built in user\r
  37  * LED.  Therefore, in place of flashing an LED, the 'flash' and 'check' tasks\r
  38  * toggle '*' characters on the LCD.  The left most '*' represents LED 0, the\r
  39  * next LED 1, etc.\r
  40  *\r
  41  * There is a single genuine on board LED referenced as LED 10.\r
  42  */\r
  43 \r
  44 /* Standard includes. */\r
  45 #include <signal.h>\r
  46 \r
  47 /* Scheduler includes. */\r
  48 #include "FreeRTOS.h"\r
  49 #include "task.h"\r
  50 \r
  51 /* Demo application includes. */\r
  52 #include "partest.h"\r
  53 \r
  54 /* Constants required to setup the LCD. */\r
  55 #define LCD_DIV_64 5\r
  56 \r
  57 /* Constants required to access the "LED's".  The LED segments are turned on\r
  58 and off to generate '*' characters. */\r
  59 #define partstNUM_LEDS                  ( ( unsigned char ) 6 )\r
  60 #define partstSEGMENTS_ON               ( ( unsigned char ) 0x0f )\r
  61 #define partstSEGMENTS_OFF              ( ( unsigned char ) 0x00 )\r
  62 \r
  63 /* The LED number of the real on board LED, rather than a simulated LED. */\r
  64 #define partstON_BOARD_LED              ( ( unsigned portBASE_TYPE ) 10 )\r
  65 #define mainON_BOARD_LED_BIT    ( ( unsigned char ) 0x01 )\r
  66 \r
  67 /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */\r
  68 unsigned char * const ucRHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa4, \r
  69                                                                                                                                 ( unsigned char * )0xa2, \r
  70                                                                                                                                 ( unsigned char * )0xa0, \r
  71                                                                                                                                 ( unsigned char * )0x9e,\r
  72                                                                                                                                 ( unsigned char * )0x9c,\r
  73                                                                                                                                 ( unsigned char * )0x9a };\r
  74 \r
  75 unsigned char * const ucLHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa3, \r
  76                                                                                                                                 ( unsigned char * )0xa1, \r
  77                                                                                                                                 ( unsigned char * )0x9f, \r
  78                                                                                                                                 ( unsigned char * )0x9d,\r
  79                                                                                                                                 ( unsigned char * )0x9b,\r
  80                                                                                                                                 ( unsigned char * )0x99 };\r
  81 \r
  82 /*\r
  83  * Toggle the single genuine built in LED.\r
  84  */\r
  85 static void prvToggleOnBoardLED( void );\r
  86 \r
  87 /*-----------------------------------------------------------*/\r
  88 \r
  89 void vParTestInitialise( void )\r
  90 {\r
  91         /* Initialise the LCD hardware. */\r
  92 \r
  93         /* Used for the onboard LED. */\r
  94         P1DIR = 0x01;\r
  95 \r
  96         // Setup Basic Timer for LCD operation\r
  97         BTCTL = (LCD_DIV_64+0x23);\r
  98 \r
  99         // Setup port functions\r
 100         P1SEL = 0x32;\r
 101         P2SEL = 0x00;\r
 102         P3SEL = 0x00;\r
 103         P4SEL = 0xFC;\r
 104         P5SEL = 0xFF;\r
 105         \r
 106         /* Initialise all segments to off. */\r
 107         LCDM1 = partstSEGMENTS_OFF;     \r
 108         LCDM2 = partstSEGMENTS_OFF;     \r
 109         LCDM3 = partstSEGMENTS_OFF;     \r
 110         LCDM4 = partstSEGMENTS_OFF;     \r
 111         LCDM5 = partstSEGMENTS_OFF;     \r
 112         LCDM6 = partstSEGMENTS_OFF;     \r
 113         LCDM7 = partstSEGMENTS_OFF;     \r
 114         LCDM8 = partstSEGMENTS_OFF;     \r
 115         LCDM9 = partstSEGMENTS_OFF;     \r
 116         LCDM10 = partstSEGMENTS_OFF;    \r
 117         LCDM11 = partstSEGMENTS_OFF;    \r
 118         LCDM12 = partstSEGMENTS_OFF;    \r
 119         LCDM13 = partstSEGMENTS_OFF;    \r
 120         LCDM14 = partstSEGMENTS_OFF;    \r
 121         LCDM15 = partstSEGMENTS_OFF;    \r
 122         LCDM16 = partstSEGMENTS_OFF;    \r
 123         LCDM17 = partstSEGMENTS_OFF;    \r
 124         LCDM18 = partstSEGMENTS_OFF;    \r
 125         LCDM19 = partstSEGMENTS_OFF;    \r
 126         LCDM20 = partstSEGMENTS_OFF;    \r
 127 \r
 128         /* Setup LCD control. */\r
 129         LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);\r
 130 }\r
 131 /*-----------------------------------------------------------*/\r
 132 \r
 133 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
 134 {\r
 135         /* Set or clear the output [in this case show or hide the '*' character. */\r
 136         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 137         {\r
 138                 vTaskSuspendAll();\r
 139                 {\r
 140                         if( xValue )\r
 141                         {\r
 142                                 /* Turn on the segments required to show the '*'. */\r
 143                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 144                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 145                         }\r
 146                         else\r
 147                         {\r
 148                                 /* Turn off all the segments. */\r
 149                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 150                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 151                         }\r
 152                 }\r
 153                 xTaskResumeAll();\r
 154         }\r
 155 }\r
 156 /*-----------------------------------------------------------*/\r
 157 \r
 158 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 159 {\r
 160         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 161         {\r
 162                 vTaskSuspendAll();\r
 163                 {\r
 164                         /* If the '*' is already showing - hide it.  If it is not already\r
 165                         showing then show it. */\r
 166                         if( *( ucRHSSegments[ uxLED ] ) )\r
 167                         {\r
 168                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 169                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 170                         }\r
 171                         else\r
 172                         {\r
 173                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 174                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 175                         }\r
 176                 }\r
 177                 xTaskResumeAll();\r
 178         }\r
 179         else\r
 180         {\r
 181                 if( uxLED == partstON_BOARD_LED )\r
 182                 {\r
 183                         /* The request related to the genuine on board LED. */\r
 184                         prvToggleOnBoardLED();\r
 185                 }\r
 186         }       \r
 187 }\r
 188 /*-----------------------------------------------------------*/\r
 189 \r
 190 static void prvToggleOnBoardLED( void )\r
 191 {\r
 192 static unsigned short sState = pdFALSE;\r
 193 \r
 194         /* Toggle the state of the single genuine on board LED. */\r
 195         if( sState )    \r
 196         {\r
 197                 P1OUT |= mainON_BOARD_LED_BIT;\r
 198         }\r
 199         else\r
 200         {\r
 201                 P1OUT &= ~mainON_BOARD_LED_BIT;\r
 202         }\r
 203 \r
 204         sState = !sState;\r
 205 }\r
 206 /*-----------------------------------------------------------*/\r
 207 \r
 208 \r