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

   1 /*\r
   2  * FreeRTOS Kernel V10.3.0\r
   3  * Copyright (C) 2020 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.\r
  14  *\r
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
  17  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
  18  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
  19  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
  20  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
  21  *\r
  22  * http://www.FreeRTOS.org\r
  23  * http://aws.amazon.com/freertos\r
  24  *\r
  25  * 1 tab == 4 spaces!\r
  26  */\r
  27 \r
  28 /*-----------------------------------------------------------\r
  29  * Characters on the LCD are used to simulate LED's.  In this case the 'ParTest'\r
  30  * is really operating on the LCD display.\r
  31  *-----------------------------------------------------------*/\r
  32 \r
  33 /*\r
  34  * This demo is configured to execute on the ES449 prototyping board from\r
  35  * SoftBaugh. The ES449 has a built in LCD display and a single built in user\r
  36  * LED.  Therefore, in place of flashing an LED, the 'flash' and 'check' tasks\r
  37  * toggle '*' characters on the LCD.  The left most '*' represents LED 0, the\r
  38  * next LED 1, etc.\r
  39  *\r
  40  * There is a single genuine on board LED referenced as LED 10.\r
  41  */\r
  42 \r
  43 /* Standard includes. */\r
  44 #include <signal.h>\r
  45 \r
  46 /* Scheduler includes. */\r
  47 #include "FreeRTOS.h"\r
  48 #include "task.h"\r
  49 \r
  50 /* Demo application includes. */\r
  51 #include "partest.h"\r
  52 \r
  53 /* Constants required to setup the LCD. */\r
  54 #define LCD_DIV_64 5\r
  55 \r
  56 /* Constants required to access the "LED's".  The LED segments are turned on\r
  57 and off to generate '*' characters. */\r
  58 #define partstNUM_LEDS                  ( ( unsigned char ) 6 )\r
  59 #define partstSEGMENTS_ON               ( ( unsigned char ) 0x0f )\r
  60 #define partstSEGMENTS_OFF              ( ( unsigned char ) 0x00 )\r
  61 \r
  62 /* The LED number of the real on board LED, rather than a simulated LED. */\r
  63 #define partstON_BOARD_LED              ( ( unsigned portBASE_TYPE ) 10 )\r
  64 #define mainON_BOARD_LED_BIT    ( ( unsigned char ) 0x01 )\r
  65 \r
  66 /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */\r
  67 unsigned char * const ucRHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa4, \r
  68                                                                                                                                 ( unsigned char * )0xa2, \r
  69                                                                                                                                 ( unsigned char * )0xa0, \r
  70                                                                                                                                 ( unsigned char * )0x9e,\r
  71                                                                                                                                 ( unsigned char * )0x9c,\r
  72                                                                                                                                 ( unsigned char * )0x9a };\r
  73 \r
  74 unsigned char * const ucLHSSegments[ partstNUM_LEDS ] = {       ( unsigned char * )0xa3, \r
  75                                                                                                                                 ( unsigned char * )0xa1, \r
  76                                                                                                                                 ( unsigned char * )0x9f, \r
  77                                                                                                                                 ( unsigned char * )0x9d,\r
  78                                                                                                                                 ( unsigned char * )0x9b,\r
  79                                                                                                                                 ( unsigned char * )0x99 };\r
  80 \r
  81 /*\r
  82  * Toggle the single genuine built in LED.\r
  83  */\r
  84 static void prvToggleOnBoardLED( void );\r
  85 \r
  86 /*-----------------------------------------------------------*/\r
  87 \r
  88 void vParTestInitialise( void )\r
  89 {\r
  90         /* Initialise the LCD hardware. */\r
  91 \r
  92         /* Used for the onboard LED. */\r
  93         P1DIR = 0x01;\r
  94 \r
  95         // Setup Basic Timer for LCD operation\r
  96         BTCTL = (LCD_DIV_64+0x23);\r
  97 \r
  98         // Setup port functions\r
  99         P1SEL = 0x32;\r
 100         P2SEL = 0x00;\r
 101         P3SEL = 0x00;\r
 102         P4SEL = 0xFC;\r
 103         P5SEL = 0xFF;\r
 104         \r
 105         /* Initialise all segments to off. */\r
 106         LCDM1 = partstSEGMENTS_OFF;     \r
 107         LCDM2 = partstSEGMENTS_OFF;     \r
 108         LCDM3 = partstSEGMENTS_OFF;     \r
 109         LCDM4 = partstSEGMENTS_OFF;     \r
 110         LCDM5 = partstSEGMENTS_OFF;     \r
 111         LCDM6 = partstSEGMENTS_OFF;     \r
 112         LCDM7 = partstSEGMENTS_OFF;     \r
 113         LCDM8 = partstSEGMENTS_OFF;     \r
 114         LCDM9 = partstSEGMENTS_OFF;     \r
 115         LCDM10 = partstSEGMENTS_OFF;    \r
 116         LCDM11 = partstSEGMENTS_OFF;    \r
 117         LCDM12 = partstSEGMENTS_OFF;    \r
 118         LCDM13 = partstSEGMENTS_OFF;    \r
 119         LCDM14 = partstSEGMENTS_OFF;    \r
 120         LCDM15 = partstSEGMENTS_OFF;    \r
 121         LCDM16 = partstSEGMENTS_OFF;    \r
 122         LCDM17 = partstSEGMENTS_OFF;    \r
 123         LCDM18 = partstSEGMENTS_OFF;    \r
 124         LCDM19 = partstSEGMENTS_OFF;    \r
 125         LCDM20 = partstSEGMENTS_OFF;    \r
 126 \r
 127         /* Setup LCD control. */\r
 128         LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);\r
 129 }\r
 130 /*-----------------------------------------------------------*/\r
 131 \r
 132 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
 133 {\r
 134         /* Set or clear the output [in this case show or hide the '*' character. */\r
 135         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 136         {\r
 137                 vTaskSuspendAll();\r
 138                 {\r
 139                         if( xValue )\r
 140                         {\r
 141                                 /* Turn on the segments required to show the '*'. */\r
 142                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 143                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 144                         }\r
 145                         else\r
 146                         {\r
 147                                 /* Turn off all the segments. */\r
 148                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 149                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 150                         }\r
 151                 }\r
 152                 xTaskResumeAll();\r
 153         }\r
 154 }\r
 155 /*-----------------------------------------------------------*/\r
 156 \r
 157 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
 158 {\r
 159         if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )\r
 160         {\r
 161                 vTaskSuspendAll();\r
 162                 {\r
 163                         /* If the '*' is already showing - hide it.  If it is not already\r
 164                         showing then show it. */\r
 165                         if( *( ucRHSSegments[ uxLED ] ) )\r
 166                         {\r
 167                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 168                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;\r
 169                         }\r
 170                         else\r
 171                         {\r
 172                                 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 173                                 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;\r
 174                         }\r
 175                 }\r
 176                 xTaskResumeAll();\r
 177         }\r
 178         else\r
 179         {\r
 180                 if( uxLED == partstON_BOARD_LED )\r
 181                 {\r
 182                         /* The request related to the genuine on board LED. */\r
 183                         prvToggleOnBoardLED();\r
 184                 }\r
 185         }       \r
 186 }\r
 187 /*-----------------------------------------------------------*/\r
 188 \r
 189 static void prvToggleOnBoardLED( void )\r
 190 {\r
 191 static unsigned short sState = pdFALSE;\r
 192 \r
 193         /* Toggle the state of the single genuine on board LED. */\r
 194         if( sState )    \r
 195         {\r
 196                 P1OUT |= mainON_BOARD_LED_BIT;\r
 197         }\r
 198         else\r
 199         {\r
 200                 P1OUT &= ~mainON_BOARD_LED_BIT;\r
 201         }\r
 202 \r
 203         sState = !sState;\r
 204 }\r
 205 /*-----------------------------------------------------------*/\r
 206 \r
 207 \r