You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
141 lines
4.0 KiB
C
141 lines
4.0 KiB
C
/*
|
|
FreeRTOS.org V4.7.2 - 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 V1.01:
|
|
|
|
+ Types used updated.
|
|
+ Add vParTestToggleLED();
|
|
|
|
Changes from V2.0.0
|
|
|
|
+ Use scheduler suspends in place of critical sections.
|
|
*/
|
|
|
|
|
|
#include "FreeRTOS.h"
|
|
#include "task.h"
|
|
#include "partest.h"
|
|
|
|
#define partstALL_OUTPUTS_OFF ( ( unsigned portSHORT) 0x00 )
|
|
#define partstMAX_OUTPUT_LED ( ( unsigned portCHAR ) 7 )
|
|
#define partstPORT_F_ADDR ( ( unsigned portSHORT ) 0x605 )
|
|
#define partstPORT_DIRECTION_REG ( ( unsigned portSHORT ) 0x606 )
|
|
#define partstPORT_F_DIR_BIT ( ( unsigned portSHORT ) 0x20 )
|
|
|
|
/*lint -e956 File scope parameters okay here. */
|
|
static volatile unsigned portCHAR ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
|
|
/*lint +e956 */
|
|
|
|
/*-----------------------------------------------------------
|
|
* Simple parallel port IO routines.
|
|
*-----------------------------------------------------------*/
|
|
|
|
void vParTestInitialise( void )
|
|
{
|
|
unsigned portSHORT usInput;
|
|
|
|
ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
|
|
|
|
/* Set the direction to output for port F. */
|
|
usInput = portINPUT_BYTE( partstPORT_DIRECTION_REG );
|
|
usInput |= partstPORT_F_DIR_BIT;
|
|
portOUTPUT_BYTE( partstPORT_DIRECTION_REG, usInput );
|
|
|
|
/* Start with all outputs off. */
|
|
portOUTPUT_BYTE( partstPORT_F_ADDR, 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( partstPORT_F_ADDR, ( 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( partstPORT_F_ADDR, ( unsigned ) ucCurrentOutputValue );
|
|
}
|
|
xTaskResumeAll();
|
|
}
|
|
}
|
|
|