2 FreeRTOS.org V5.4.0 - 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 * Simple parallel port IO routines.
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54 *-----------------------------------------------------------*/
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56 /* FreeRTOS includes. */
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57 #include "FreeRTOS.h"
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60 /* Demo includes. */
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61 #include "partest.h"
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63 #define partstNUM_LEDs 4
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65 #define LED0_MASK ( ( unsigned short ) 0x08 )
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66 #define LED1_MASK ( ( unsigned short ) 0x10 )
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67 #define LED2_MASK ( ( unsigned short ) 0x40 )
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68 #define LED3_MASK ( ( unsigned short ) 0x80 )
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70 static const unsigned short xLEDs[ partstNUM_LEDs ] = { LED0_MASK, LED1_MASK, LED2_MASK, LED3_MASK };
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74 void vParTestInitialise( void )
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76 /* Set GPIO to output. */
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77 PM3 &= ~( LED0_MASK | LED1_MASK | LED2_MASK | LED3_MASK );
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79 /*-----------------------------------------------------------*/
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81 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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83 unsigned portBASE_TYPE uxLEDMask;
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85 if( uxLED < partstNUM_LEDs )
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87 uxLEDMask = xLEDs[ uxLED ];
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89 taskENTER_CRITICAL();
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100 taskEXIT_CRITICAL();
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103 /*-----------------------------------------------------------*/
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105 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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107 unsigned portBASE_TYPE uxLEDMask;
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109 if( uxLED < partstNUM_LEDs )
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111 uxLEDMask = xLEDs[ uxLED ];
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113 taskENTER_CRITICAL();
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115 if( P3 & uxLEDMask )
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124 taskEXIT_CRITICAL();
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