2 FreeRTOS.org V5.1.2 - Copyright (C) 2003-2009 Richard Barry.
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4 This file is part of the FreeRTOS.org distribution.
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6 FreeRTOS.org is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2 of the License, or
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9 (at your option) any later version.
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11 FreeRTOS.org is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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16 You should have received a copy of the GNU General Public License
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17 along with FreeRTOS.org; if not, write to the Free Software
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18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 A special exception to the GPL can be applied should you wish to distribute
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21 a combined work that includes FreeRTOS.org, without being obliged to provide
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22 the source code for any proprietary components. See the licensing section
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23 of http://www.FreeRTOS.org for full details of how and when the exception
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26 ***************************************************************************
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27 ***************************************************************************
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29 * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
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31 * This is a concise, step by step, 'hands on' guide that describes both *
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32 * general multitasking concepts and FreeRTOS specifics. It presents and *
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33 * explains numerous examples that are written using the FreeRTOS API. *
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34 * Full source code for all the examples is provided in an accompanying *
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37 ***************************************************************************
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38 ***************************************************************************
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40 Please ensure to read the configuration and relevant port sections of the
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41 online documentation.
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43 http://www.FreeRTOS.org - Documentation, latest information, license and
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46 http://www.SafeRTOS.com - A version that is certified for use in safety
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49 http://www.OpenRTOS.com - Commercial support, development, porting,
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50 licensing and training services.
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53 /*-----------------------------------------------------------
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54 * Characters on the LCD are used to simulate LED's. In this case the 'ParTest'
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55 * is really operating on the LCD display.
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56 *-----------------------------------------------------------*/
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59 * This demo is configured to execute on the ES449 prototyping board from
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60 * SoftBaugh. The ES449 has a built in LCD display and a single built in user
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61 * LED. Therefore, in place of flashing an LED, the 'flash' and 'check' tasks
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62 * toggle '*' characters on the LCD. The left most '*' represents LED 0, the
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65 * There is a single genuine on board LED referenced as LED 10.
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69 /* Scheduler includes. */
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70 #include "FreeRTOS.h"
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73 /* Demo application includes. */
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74 #include "partest.h"
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76 /* Constants required to setup the LCD. */
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77 #define LCD_DIV_64 5
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79 /* Constants required to access the "LED's". The LED segments are turned on
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80 and off to generate '*' characters. */
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81 #define partstNUM_LEDS ( ( unsigned portCHAR ) 6 )
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82 #define partstSEGMENTS_ON ( ( unsigned portCHAR ) 0x0f )
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83 #define partstSEGMENTS_OFF ( ( unsigned portCHAR ) 0x00 )
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85 /* The LED number of the real on board LED, rather than a simulated LED. */
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86 #define partstON_BOARD_LED ( ( unsigned portBASE_TYPE ) 10 )
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87 #define mainON_BOARD_LED_BIT ( ( unsigned portCHAR ) 0x01 )
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89 /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */
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90 unsigned portCHAR * const ucRHSSegments[ partstNUM_LEDS ] = { ( unsigned portCHAR * )0xa4,
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91 ( unsigned portCHAR * )0xa2,
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92 ( unsigned portCHAR * )0xa0,
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93 ( unsigned portCHAR * )0x9e,
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94 ( unsigned portCHAR * )0x9c,
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95 ( unsigned portCHAR * )0x9a };
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97 unsigned portCHAR * const ucLHSSegments[ partstNUM_LEDS ] = { ( unsigned portCHAR * )0xa3,
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98 ( unsigned portCHAR * )0xa1,
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99 ( unsigned portCHAR * )0x9f,
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100 ( unsigned portCHAR * )0x9d,
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101 ( unsigned portCHAR * )0x9b,
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102 ( unsigned portCHAR * )0x99 };
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105 * Toggle the single genuine built in LED.
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107 static void prvToggleOnBoardLED( void );
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109 /*-----------------------------------------------------------*/
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111 void vParTestInitialise( void )
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113 /* Initialise the LCD hardware. */
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115 /* Used for the onboard LED. */
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118 // Setup Basic Timer for LCD operation
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119 BTCTL = (LCD_DIV_64+0x23);
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121 // Setup port functions
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128 /* Initialise all segments to off. */
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129 LCDM1 = partstSEGMENTS_OFF;
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130 LCDM2 = partstSEGMENTS_OFF;
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131 LCDM3 = partstSEGMENTS_OFF;
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132 LCDM4 = partstSEGMENTS_OFF;
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133 LCDM5 = partstSEGMENTS_OFF;
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134 LCDM6 = partstSEGMENTS_OFF;
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135 LCDM7 = partstSEGMENTS_OFF;
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136 LCDM8 = partstSEGMENTS_OFF;
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137 LCDM9 = partstSEGMENTS_OFF;
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138 LCDM10 = partstSEGMENTS_OFF;
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139 LCDM11 = partstSEGMENTS_OFF;
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140 LCDM12 = partstSEGMENTS_OFF;
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141 LCDM13 = partstSEGMENTS_OFF;
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142 LCDM14 = partstSEGMENTS_OFF;
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143 LCDM15 = partstSEGMENTS_OFF;
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144 LCDM16 = partstSEGMENTS_OFF;
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145 LCDM17 = partstSEGMENTS_OFF;
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146 LCDM18 = partstSEGMENTS_OFF;
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147 LCDM19 = partstSEGMENTS_OFF;
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148 LCDM20 = partstSEGMENTS_OFF;
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150 /* Setup LCD control. */
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151 LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);
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153 /*-----------------------------------------------------------*/
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155 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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157 /* Set or clear the output [in this case show or hide the '*' character. */
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158 if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )
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164 /* Turn on the segments required to show the '*'. */
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165 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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166 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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170 /* Turn off all the segments. */
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171 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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172 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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178 /*-----------------------------------------------------------*/
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180 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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182 if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )
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186 /* If the '*' is already showing - hide it. If it is not already
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187 showing then show it. */
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188 if( *( ucRHSSegments[ uxLED ] ) )
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190 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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191 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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195 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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196 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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203 if( uxLED == partstON_BOARD_LED )
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205 /* The request related to the genuine on board LED. */
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206 prvToggleOnBoardLED();
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210 /*-----------------------------------------------------------*/
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212 static void prvToggleOnBoardLED( void )
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214 static unsigned portSHORT sState = pdFALSE;
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216 /* Toggle the state of the single genuine on board LED. */
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219 P1OUT |= mainON_BOARD_LED_BIT;
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223 P1OUT &= ~mainON_BOARD_LED_BIT;
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228 /*-----------------------------------------------------------*/
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