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191
20080212/Demo/Cygnal/ParTest/ParTest.c
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20080212/Demo/Cygnal/ParTest/ParTest.c
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/*
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FreeRTOS.org V4.7.1 - Copyright (C) 2003-2008 Richard Barry.
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This file is part of the FreeRTOS.org distribution.
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FreeRTOS.org is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FreeRTOS.org is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FreeRTOS.org; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes FreeRTOS.org, without being obliged to provide
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the source code for any proprietary components. See the licensing section
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of http://www.FreeRTOS.org for full details of how and when the exception
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can be applied.
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***************************************************************************
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Please ensure to read the configuration and relevant port sections of the
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online documentation.
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+++ http://www.FreeRTOS.org +++
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Documentation, latest information, license and contact details.
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+++ http://www.SafeRTOS.com +++
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A version that is certified for use in safety critical systems.
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+++ http://www.OpenRTOS.com +++
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Commercial support, development, porting, licensing and training services.
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***************************************************************************
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*/
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#include <c8051f120.h>
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#include "FreeRTOS.h"
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#include "task.h"
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#include "partest.h"
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#define partstPUSH_PULL ( ( unsigned portCHAR ) 0xff )
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#define partstALL_OUTPUTS_OFF ( ( unsigned portCHAR ) 0xff )
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/* LED to output is dependent on how the LED's are wired. */
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#define partstOUTPUT_0 ( ( unsigned portCHAR ) 0x02 )
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#define partstOUTPUT_1 ( ( unsigned portCHAR ) 0x08 )
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#define partstOUTPUT_2 ( ( unsigned portCHAR ) 0x20 )
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#define partstOUTPUT_3 ( ( unsigned portCHAR ) 0x01 )
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#define partstOUTPUT_4 ( ( unsigned portCHAR ) 0x04 )
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#define partstOUTPUT_5 ( ( unsigned portCHAR ) 0x10 )
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#define partstOUTPUT_6 ( ( unsigned portCHAR ) 0x40 )
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#define partstOUTPUT_7 ( ( unsigned portCHAR ) 0x80 )
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/*-----------------------------------------------------------
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* Simple parallel port IO routines.
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*-----------------------------------------------------------*/
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void vParTestInitialise( void )
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{
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unsigned portCHAR ucOriginalSFRPage;
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/* Remember the SFR page before it is changed so it can get set back
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before the function exits. */
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ucOriginalSFRPage = SFRPAGE;
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/* Setup the SFR page to access the config SFR's. */
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SFRPAGE = CONFIG_PAGE;
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/* Set the on board LED to push pull. */
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P3MDOUT |= partstPUSH_PULL;
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/* Return the SFR page. */
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SFRPAGE = ucOriginalSFRPage;
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P3 = partstALL_OUTPUTS_OFF;
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}
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/*-----------------------------------------------------------*/
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void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )
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{
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portBASE_TYPE xError = pdFALSE;
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vTaskSuspendAll();
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{
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if( xValue == pdFALSE )
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{
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switch( uxLED )
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{
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case 0 : P3 |= partstOUTPUT_0;
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break;
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case 1 : P3 |= partstOUTPUT_1;
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break;
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case 2 : P3 |= partstOUTPUT_2;
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break;
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case 3 : P3 |= partstOUTPUT_3;
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break;
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case 4 : P3 |= partstOUTPUT_4;
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break;
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case 5 : P3 |= partstOUTPUT_5;
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break;
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case 6 : P3 |= partstOUTPUT_6;
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break;
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case 7 : P3 |= partstOUTPUT_7;
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break;
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default : /* There are no other LED's wired in. */
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xError = pdTRUE;
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break;
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}
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}
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else
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{
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switch( uxLED )
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{
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case 0 : P3 &= ~partstOUTPUT_0;
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break;
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case 1 : P3 &= ~partstOUTPUT_1;
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break;
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case 2 : P3 &= ~partstOUTPUT_2;
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break;
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case 3 : P3 &= ~partstOUTPUT_3;
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break;
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case 4 : P3 &= ~partstOUTPUT_4;
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break;
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case 5 : P3 &= ~partstOUTPUT_5;
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break;
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case 6 : P3 &= ~partstOUTPUT_6;
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break;
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case 7 : P3 &= ~partstOUTPUT_7;
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break;
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default : /* There are no other LED's wired in. */
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break;
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}
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}
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}
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xTaskResumeAll();
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}
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/*-----------------------------------------------------------*/
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void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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{
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unsigned portCHAR ucBit;
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portBASE_TYPE xError = pdFALSE;
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vTaskSuspendAll();
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{
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switch( uxLED )
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{
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case 0 : ucBit = partstOUTPUT_0;
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break;
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case 1 : ucBit = partstOUTPUT_1;
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break;
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case 2 : ucBit = partstOUTPUT_2;
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break;
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case 3 : ucBit = partstOUTPUT_3;
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break;
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case 4 : ucBit = partstOUTPUT_4;
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break;
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case 5 : ucBit = partstOUTPUT_5;
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break;
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case 6 : ucBit = partstOUTPUT_6;
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break;
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case 7 : ucBit = partstOUTPUT_7;
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break;
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default : /* There are no other LED's wired in. */
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xError = pdTRUE;
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break;
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}
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if( xError != pdTRUE )
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{
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if( P3 & ucBit )
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{
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P3 &= ~ucBit;
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}
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else
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{
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P3 |= ucBit;
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}
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}
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}
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xTaskResumeAll();
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}
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