2 FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.
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4 FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
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5 http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 ***************************************************************************
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9 * FreeRTOS tutorial books are available in pdf and paperback. *
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10 * Complete, revised, and edited pdf reference manuals are also *
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13 * Purchasing FreeRTOS documentation will not only help you, by *
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14 * ensuring you get running as quickly as possible and with an *
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15 * in-depth knowledge of how to use FreeRTOS, it will also help *
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16 * the FreeRTOS project to continue with its mission of providing *
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17 * professional grade, cross platform, de facto standard solutions *
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18 * for microcontrollers - completely free of charge! *
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20 * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
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22 * Thank you for using FreeRTOS, and thank you for your support! *
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24 ***************************************************************************
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27 This file is part of the FreeRTOS distribution.
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29 FreeRTOS is free software; you can redistribute it and/or modify it under
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30 the terms of the GNU General Public License (version 2) as published by the
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31 Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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33 >>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to
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34 distribute a combined work that includes FreeRTOS without being obliged to
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35 provide the source code for proprietary components outside of the FreeRTOS
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38 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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39 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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40 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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41 details. You should have received a copy of the GNU General Public License
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42 and the FreeRTOS license exception along with FreeRTOS; if not itcan be
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43 viewed here: http://www.freertos.org/a00114.html and also obtained by
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44 writing to Real Time Engineers Ltd., contact details for whom are available
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45 on the FreeRTOS WEB site.
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49 ***************************************************************************
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51 * Having a problem? Start by reading the FAQ "My application does *
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52 * not run, what could be wrong?" *
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54 * http://www.FreeRTOS.org/FAQHelp.html *
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56 ***************************************************************************
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59 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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60 license and Real Time Engineers Ltd. contact details.
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62 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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63 including FreeRTOS+Trace - an indispensable productivity tool, and our new
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64 fully thread aware and reentrant UDP/IP stack.
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66 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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67 Integrity Systems, who sell the code with commercial support,
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68 indemnification and middleware, under the OpenRTOS brand.
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70 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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71 engineered and independently SIL3 certified version for use in safety and
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72 mission critical applications that require provable dependability.
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75 /*-----------------------------------------------------------
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76 * Characters on the LCD are used to simulate LED's. In this case the 'ParTest'
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77 * is really operating on the LCD display.
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78 *-----------------------------------------------------------*/
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81 * This demo is configured to execute on the ES449 prototyping board from
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82 * SoftBaugh. The ES449 has a built in LCD display and a single built in user
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83 * LED. Therefore, in place of flashing an LED, the 'flash' and 'check' tasks
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84 * toggle '*' characters on the LCD. The left most '*' represents LED 0, the
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87 * There is a single genuine on board LED referenced as LED 10.
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91 /* Scheduler includes. */
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92 #include "FreeRTOS.h"
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95 /* Demo application includes. */
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96 #include "partest.h"
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98 /* Constants required to setup the LCD. */
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99 #define LCD_DIV_64 5
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101 /* Constants required to access the "LED's". The LED segments are turned on
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102 and off to generate '*' characters. */
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103 #define partstNUM_LEDS ( ( unsigned portCHAR ) 6 )
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104 #define partstSEGMENTS_ON ( ( unsigned portCHAR ) 0x0f )
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105 #define partstSEGMENTS_OFF ( ( unsigned portCHAR ) 0x00 )
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107 /* The LED number of the real on board LED, rather than a simulated LED. */
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108 #define partstON_BOARD_LED ( ( unsigned portBASE_TYPE ) 10 )
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109 #define mainON_BOARD_LED_BIT ( ( unsigned portCHAR ) 0x01 )
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111 /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */
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112 unsigned portCHAR * const ucRHSSegments[ partstNUM_LEDS ] = { ( unsigned portCHAR * )0xa4,
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113 ( unsigned portCHAR * )0xa2,
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114 ( unsigned portCHAR * )0xa0,
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115 ( unsigned portCHAR * )0x9e,
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116 ( unsigned portCHAR * )0x9c,
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117 ( unsigned portCHAR * )0x9a };
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119 unsigned portCHAR * const ucLHSSegments[ partstNUM_LEDS ] = { ( unsigned portCHAR * )0xa3,
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120 ( unsigned portCHAR * )0xa1,
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121 ( unsigned portCHAR * )0x9f,
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122 ( unsigned portCHAR * )0x9d,
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123 ( unsigned portCHAR * )0x9b,
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124 ( unsigned portCHAR * )0x99 };
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127 * Toggle the single genuine built in LED.
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129 static void prvToggleOnBoardLED( void );
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131 /*-----------------------------------------------------------*/
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133 void vParTestInitialise( void )
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135 /* Initialise the LCD hardware. */
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137 /* Used for the onboard LED. */
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140 // Setup Basic Timer for LCD operation
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141 BTCTL = (LCD_DIV_64+0x23);
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143 // Setup port functions
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150 /* Initialise all segments to off. */
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151 LCDM1 = partstSEGMENTS_OFF;
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152 LCDM2 = partstSEGMENTS_OFF;
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153 LCDM3 = partstSEGMENTS_OFF;
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154 LCDM4 = partstSEGMENTS_OFF;
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155 LCDM5 = partstSEGMENTS_OFF;
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156 LCDM6 = partstSEGMENTS_OFF;
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157 LCDM7 = partstSEGMENTS_OFF;
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158 LCDM8 = partstSEGMENTS_OFF;
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159 LCDM9 = partstSEGMENTS_OFF;
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160 LCDM10 = partstSEGMENTS_OFF;
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161 LCDM11 = partstSEGMENTS_OFF;
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162 LCDM12 = partstSEGMENTS_OFF;
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163 LCDM13 = partstSEGMENTS_OFF;
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164 LCDM14 = partstSEGMENTS_OFF;
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165 LCDM15 = partstSEGMENTS_OFF;
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166 LCDM16 = partstSEGMENTS_OFF;
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167 LCDM17 = partstSEGMENTS_OFF;
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168 LCDM18 = partstSEGMENTS_OFF;
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169 LCDM19 = partstSEGMENTS_OFF;
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170 LCDM20 = partstSEGMENTS_OFF;
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172 /* Setup LCD control. */
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173 LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);
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175 /*-----------------------------------------------------------*/
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177 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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179 /* Set or clear the output [in this case show or hide the '*' character. */
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180 if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )
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186 /* Turn on the segments required to show the '*'. */
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187 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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188 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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192 /* Turn off all the segments. */
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193 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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194 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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200 /*-----------------------------------------------------------*/
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202 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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204 if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )
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208 /* If the '*' is already showing - hide it. If it is not already
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209 showing then show it. */
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210 if( *( ucRHSSegments[ uxLED ] ) )
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212 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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213 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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217 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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218 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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225 if( uxLED == partstON_BOARD_LED )
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227 /* The request related to the genuine on board LED. */
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228 prvToggleOnBoardLED();
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232 /*-----------------------------------------------------------*/
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234 static void prvToggleOnBoardLED( void )
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236 static unsigned portSHORT sState = pdFALSE;
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238 /* Toggle the state of the single genuine on board LED. */
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241 P1OUT |= mainON_BOARD_LED_BIT;
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245 P1OUT &= ~mainON_BOARD_LED_BIT;
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250 /*-----------------------------------------------------------*/
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