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Richard Barry 2008-02-13 10:36:35 +00:00
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20080212/Demo/PIC18_MPLAB/ParTest/ParTest.c Normal file
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/*
FreeRTOS.org V4.7.1 - Copyright (C) 2003-2008 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FreeRTOS.org is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FreeRTOS.org; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS.org, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
Please ensure to read the configuration and relevant port sections of the
online documentation.
+++ http://www.FreeRTOS.org +++
Documentation, latest information, license and contact details.
+++ http://www.SafeRTOS.com +++
A version that is certified for use in safety critical systems.
+++ http://www.OpenRTOS.com +++
Commercial support, development, porting, licensing and training services.
***************************************************************************
*/
/*
Changes from V2.0.0
+ Use scheduler suspends in place of critical sections.
*/
#include "FreeRTOS.h"
#include "task.h"
#include "partest.h"
/*-----------------------------------------------------------
* Simple parallel port IO routines for the FED 40pin demo board.
* The four LED's are connected to D4 to D7.
*-----------------------------------------------------------*/
#define partstBIT_AS_OUTPUT ( ( unsigned portSHORT ) 0 )
#define partstSET_OUTPUT ( ( unsigned portSHORT ) 1 )
#define partstCLEAR_OUTPUT ( ( unsigned portSHORT ) 0 )
#define partstENABLE_GENERAL_IO ( ( unsigned portCHAR ) 7 )
/*-----------------------------------------------------------*/
void vParTestInitialise( void )
{
/* Set the top four bits of port D to output. */
TRISDbits.TRISD7 = partstBIT_AS_OUTPUT;
TRISDbits.TRISD6 = partstBIT_AS_OUTPUT;
TRISDbits.TRISD5 = partstBIT_AS_OUTPUT;
TRISDbits.TRISD4 = partstBIT_AS_OUTPUT;
/* Start with all bits off. */
PORTDbits.RD7 = partstCLEAR_OUTPUT;
PORTDbits.RD6 = partstCLEAR_OUTPUT;
PORTDbits.RD5 = partstCLEAR_OUTPUT;
PORTDbits.RD4 = partstCLEAR_OUTPUT;
/* Enable the driver. */
ADCON1 = partstENABLE_GENERAL_IO;
TRISEbits.TRISE2 = partstBIT_AS_OUTPUT;
PORTEbits.RE2 = partstSET_OUTPUT;
}
/*-----------------------------------------------------------*/
void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )
{
/* We are only using the top nibble, so LED 0 corresponds to bit 4. */
vTaskSuspendAll();
{
switch( uxLED )
{
case 3 : PORTDbits.RD7 = ( portSHORT ) xValue;
break;
case 2 : PORTDbits.RD6 = ( portSHORT ) xValue;
break;
case 1 : PORTDbits.RD5 = ( portSHORT ) xValue;
break;
case 0 : PORTDbits.RD4 = ( portSHORT ) xValue;
break;
default : /* There are only 4 LED's. */
break;
}
}
xTaskResumeAll();
}
/*-----------------------------------------------------------*/
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
/* We are only using the top nibble, so LED 0 corresponds to bit 4. */
vTaskSuspendAll();
{
switch( uxLED )
{
case 3 : PORTDbits.RD7 = !( PORTDbits.RD7 );
break;
case 2 : PORTDbits.RD6 = !( PORTDbits.RD6 );
break;
case 1 : PORTDbits.RD5 = !( PORTDbits.RD5 );
break;
case 0 : PORTDbits.RD4 = !( PORTDbits.RD4 );
break;
default : /* There are only 4 LED's. */
break;
}
}
xTaskResumeAll();
}