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First version under SVN is V4.0.1

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This commit is contained in:
Richard Barry 2006-05-02 09:39:15 +00:00
parent 243393860c
commit b6df57c7e3
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Demo/PC/ParTest/ParTest.c Normal file
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/*
FreeRTOS V4.0.1 - Copyright (C) 2003-2006 Richard Barry.
This file is part of the FreeRTOS distribution.
FreeRTOS 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 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; 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, 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.
***************************************************************************
See http://www.FreeRTOS.org for documentation, latest information, license
and contact details. Please ensure to read the configuration and relevant
port sections of the online documentation.
***************************************************************************
*/
/*
Changes from V1.01:
+ Types used updated.
+ Add vParTestToggleLED();
Changes from V2.0.0
+ Use scheduler suspends in place of critical sections.
*/
#include "FreeRTOS.h"
#include "partest.h"
#include "task.h"
#define partstALL_OUTPUTS_OFF ( ( unsigned portCHAR ) 0x00 )
#define partstMAX_OUTPUT_LED ( ( unsigned portCHAR ) 7 )
/*lint -e956 File scope parameters okay here. */
static unsigned portSHORT usPortAddress = partstDEFAULT_PORT_ADDRESS;
static volatile unsigned portCHAR ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
/*lint +e956 */
/*-----------------------------------------------------------
* Simple parallel port IO routines
*-----------------------------------------------------------*/
void vParTestInitialise( void )
{
ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
portOUTPUT_BYTE( usPortAddress, ( unsigned ) partstALL_OUTPUTS_OFF );
}
/*-----------------------------------------------------------*/
void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )
{
unsigned portCHAR ucBit = ( unsigned portCHAR ) 1;
if( uxLED <= partstMAX_OUTPUT_LED )
{
ucBit <<= uxLED;
}
vTaskSuspendAll();
{
if( xValue == pdTRUE )
{
ucBit ^= ( unsigned portCHAR ) 0xff;
ucCurrentOutputValue &= ucBit;
}
else
{
ucCurrentOutputValue |= ucBit;
}
portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue );
}
xTaskResumeAll();
}
/*-----------------------------------------------------------*/
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
unsigned portCHAR ucBit;
if( uxLED <= partstMAX_OUTPUT_LED )
{
ucBit = ( ( unsigned portCHAR ) 1 ) << uxLED;
vTaskSuspendAll();
{
if( ucCurrentOutputValue & ucBit )
{
ucCurrentOutputValue &= ~ucBit;
}
else
{
ucCurrentOutputValue |= ucBit;
}
portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue );
}
xTaskResumeAll();
}
}