2 FreeRTOS.org V5.3.0 - 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 it
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7 under the terms of the GNU General Public License (version 2) as published
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8 by the Free Software Foundation and modified by the FreeRTOS exception.
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9 **NOTE** The exception to the GPL is included to allow you to distribute a
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10 combined work that includes FreeRTOS.org without being obliged to provide
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11 the source code for any proprietary components. Alternative commercial
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12 license and support terms are also available upon request. See the
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13 licensing section of http://www.FreeRTOS.org for full details.
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15 FreeRTOS.org is distributed in the hope that it will be useful, but WITHOUT
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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20 You should have received a copy of the GNU General Public License along
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21 with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
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22 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 ***************************************************************************
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27 * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
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29 * This is a concise, step by step, 'hands on' guide that describes both *
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30 * general multitasking concepts and FreeRTOS specifics. It presents and *
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31 * explains numerous examples that are written using the FreeRTOS API. *
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32 * Full source code for all the examples is provided in an accompanying *
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35 ***************************************************************************
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39 Please ensure to read the configuration and relevant port sections of the
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40 online documentation.
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42 http://www.FreeRTOS.org - Documentation, latest information, license and
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45 http://www.SafeRTOS.com - A version that is certified for use in safety
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48 http://www.OpenRTOS.com - Commercial support, development, porting,
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49 licensing and training services.
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52 /*-----------------------------------------------------------
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53 * Characters on the LCD are used to simulate LED's. In this case the 'ParTest'
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54 * is really operating on the LCD display.
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55 *-----------------------------------------------------------*/
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58 * This demo is configured to execute on the ES449 prototyping board from
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59 * SoftBaugh. The ES449 has a built in LCD display and a single built in user
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60 * LED. Therefore, in place of flashing an LED, the 'flash' and 'check' tasks
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61 * toggle '*' characters on the LCD. The left most '*' represents LED 0, the
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64 * There is a single genuine on board LED referenced as LED 10.
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68 /* Scheduler includes. */
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69 #include "FreeRTOS.h"
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72 /* Demo application includes. */
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73 #include "partest.h"
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75 /* Constants required to setup the LCD. */
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76 #define LCD_DIV_64 5
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78 /* Constants required to access the "LED's". The LED segments are turned on
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79 and off to generate '*' characters. */
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80 #define partstNUM_LEDS ( ( unsigned portCHAR ) 6 )
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81 #define partstSEGMENTS_ON ( ( unsigned portCHAR ) 0x0f )
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82 #define partstSEGMENTS_OFF ( ( unsigned portCHAR ) 0x00 )
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84 /* The LED number of the real on board LED, rather than a simulated LED. */
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85 #define partstON_BOARD_LED ( ( unsigned portBASE_TYPE ) 10 )
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86 #define mainON_BOARD_LED_BIT ( ( unsigned portCHAR ) 0x01 )
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88 /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */
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89 unsigned portCHAR * const ucRHSSegments[ partstNUM_LEDS ] = { ( unsigned portCHAR * )0xa4,
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90 ( unsigned portCHAR * )0xa2,
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91 ( unsigned portCHAR * )0xa0,
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92 ( unsigned portCHAR * )0x9e,
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93 ( unsigned portCHAR * )0x9c,
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94 ( unsigned portCHAR * )0x9a };
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96 unsigned portCHAR * const ucLHSSegments[ partstNUM_LEDS ] = { ( unsigned portCHAR * )0xa3,
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97 ( unsigned portCHAR * )0xa1,
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98 ( unsigned portCHAR * )0x9f,
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99 ( unsigned portCHAR * )0x9d,
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100 ( unsigned portCHAR * )0x9b,
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101 ( unsigned portCHAR * )0x99 };
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104 * Toggle the single genuine built in LED.
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106 static void prvToggleOnBoardLED( void );
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108 /*-----------------------------------------------------------*/
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110 void vParTestInitialise( void )
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112 /* Initialise the LCD hardware. */
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114 /* Used for the onboard LED. */
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117 // Setup Basic Timer for LCD operation
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118 BTCTL = (LCD_DIV_64+0x23);
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120 // Setup port functions
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127 /* Initialise all segments to off. */
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128 LCDM1 = partstSEGMENTS_OFF;
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129 LCDM2 = partstSEGMENTS_OFF;
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130 LCDM3 = partstSEGMENTS_OFF;
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131 LCDM4 = partstSEGMENTS_OFF;
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132 LCDM5 = partstSEGMENTS_OFF;
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133 LCDM6 = partstSEGMENTS_OFF;
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134 LCDM7 = partstSEGMENTS_OFF;
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135 LCDM8 = partstSEGMENTS_OFF;
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136 LCDM9 = partstSEGMENTS_OFF;
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137 LCDM10 = partstSEGMENTS_OFF;
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138 LCDM11 = partstSEGMENTS_OFF;
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139 LCDM12 = partstSEGMENTS_OFF;
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140 LCDM13 = partstSEGMENTS_OFF;
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141 LCDM14 = partstSEGMENTS_OFF;
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142 LCDM15 = partstSEGMENTS_OFF;
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143 LCDM16 = partstSEGMENTS_OFF;
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144 LCDM17 = partstSEGMENTS_OFF;
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145 LCDM18 = partstSEGMENTS_OFF;
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146 LCDM19 = partstSEGMENTS_OFF;
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147 LCDM20 = partstSEGMENTS_OFF;
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149 /* Setup LCD control. */
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150 LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);
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152 /*-----------------------------------------------------------*/
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154 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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156 /* Set or clear the output [in this case show or hide the '*' character. */
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157 if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )
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163 /* Turn on the segments required to show the '*'. */
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164 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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165 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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169 /* Turn off all the segments. */
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170 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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171 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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177 /*-----------------------------------------------------------*/
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179 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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181 if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )
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185 /* If the '*' is already showing - hide it. If it is not already
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186 showing then show it. */
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187 if( *( ucRHSSegments[ uxLED ] ) )
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189 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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190 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
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194 *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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195 *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
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202 if( uxLED == partstON_BOARD_LED )
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204 /* The request related to the genuine on board LED. */
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205 prvToggleOnBoardLED();
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209 /*-----------------------------------------------------------*/
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211 static void prvToggleOnBoardLED( void )
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213 static unsigned portSHORT sState = pdFALSE;
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215 /* Toggle the state of the single genuine on board LED. */
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218 P1OUT |= mainON_BOARD_LED_BIT;
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222 P1OUT &= ~mainON_BOARD_LED_BIT;
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227 /*-----------------------------------------------------------*/
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