2 FreeRTOS V7.5.1 - Copyright (C) 2013 Real Time Engineers Ltd.
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4 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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6 ***************************************************************************
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8 * FreeRTOS provides completely free yet professionally developed, *
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9 * robust, strictly quality controlled, supported, and cross *
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10 * platform software that has become a de facto standard. *
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12 * Help yourself get started quickly and support the FreeRTOS *
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13 * project by purchasing a FreeRTOS tutorial book, reference *
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14 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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18 ***************************************************************************
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20 This file is part of the FreeRTOS distribution.
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22 FreeRTOS is free software; you can redistribute it and/or modify it under
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23 the terms of the GNU General Public License (version 2) as published by the
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24 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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26 >>! NOTE: The modification to the GPL is included to allow you to distribute
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27 >>! a combined work that includes FreeRTOS without being obliged to provide
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28 >>! the source code for proprietary components outside of the FreeRTOS
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31 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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32 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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33 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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34 link: http://www.freertos.org/a00114.html
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38 ***************************************************************************
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40 * Having a problem? Start by reading the FAQ "My application does *
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41 * not run, what could be wrong?" *
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43 * http://www.FreeRTOS.org/FAQHelp.html *
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45 ***************************************************************************
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47 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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48 license and Real Time Engineers Ltd. contact details.
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50 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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51 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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52 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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54 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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55 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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56 licenses offer ticketed support, indemnification and middleware.
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58 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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59 engineered and independently SIL3 certified version for use in safety and
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60 mission critical applications that require provable dependability.
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65 /* Scheduler includes. */
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66 #include "FreeRTOS.h"
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68 /* Demo app includes. */
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69 #include "partest.h"
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74 unsigned portBASE_TYPE uxOutput;
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76 /*-----------------------------------------------------------
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77 * Simple parallel port IO routines.
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78 *-----------------------------------------------------------*/
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80 void vParTestInitialise( void )
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82 /* The explorer 16 board has LED's on port A. All bits are set as output
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83 so PORTA is read-modified-written directly. Two pins have change
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84 notification pullups that need disabling. */
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85 CNPU2bits.CN22PUE = 0;
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86 CNPU2bits.CN23PUE = 0;
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89 uxOutput = ptALL_OFF;
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91 /*-----------------------------------------------------------*/
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93 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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95 unsigned portBASE_TYPE uxLEDBit;
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97 /* Which port A bit is being modified? */
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98 uxLEDBit = 1 << uxLED;
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102 /* Turn the LED on. */
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103 portENTER_CRITICAL();
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105 uxOutput |= uxLEDBit;
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108 portEXIT_CRITICAL();
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112 /* Turn the LED off. */
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113 portENTER_CRITICAL();
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115 uxOutput &= ~uxLEDBit;
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118 portEXIT_CRITICAL();
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121 /*-----------------------------------------------------------*/
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123 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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125 unsigned portBASE_TYPE uxLEDBit;
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127 uxLEDBit = 1 << uxLED;
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128 portENTER_CRITICAL();
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130 /* If the LED is already on - turn it off. If the LED is already
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131 off, turn it on. */
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132 if( uxOutput & uxLEDBit )
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134 uxOutput &= ~uxLEDBit;
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139 uxOutput |= uxLEDBit;
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143 portEXIT_CRITICAL();
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