mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-10-29 00:36:16 -04:00
107 lines
3 KiB
C
107 lines
3 KiB
C
/*
|
|
* FreeRTOS V202212.00
|
|
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
* this software and associated documentation files (the "Software"), to deal in
|
|
* the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
|
* the Software, and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
|
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
|
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
|
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* https://www.FreeRTOS.org
|
|
* https://github.com/FreeRTOS
|
|
*
|
|
*/
|
|
|
|
/* Scheduler includes. */
|
|
#include "FreeRTOS.h"
|
|
|
|
/* Demo app includes. */
|
|
#include "partest.h"
|
|
|
|
#define ptOUTPUT 0
|
|
#define ptALL_OFF 0
|
|
|
|
unsigned portBASE_TYPE uxOutput;
|
|
|
|
/*-----------------------------------------------------------
|
|
* Simple parallel port IO routines.
|
|
*-----------------------------------------------------------*/
|
|
|
|
void vParTestInitialise( void )
|
|
{
|
|
/* The explorer 16 board has LED's on port A. All bits are set as output
|
|
so PORTA is read-modified-written directly. Two pins have change
|
|
notification pullups that need disabling. */
|
|
CNPU2bits.CN22PUE = 0;
|
|
CNPU2bits.CN23PUE = 0;
|
|
TRISA = ptOUTPUT;
|
|
PORTA = ptALL_OFF;
|
|
uxOutput = ptALL_OFF;
|
|
}
|
|
/*-----------------------------------------------------------*/
|
|
|
|
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
|
|
{
|
|
unsigned portBASE_TYPE uxLEDBit;
|
|
|
|
/* Which port A bit is being modified? */
|
|
uxLEDBit = 1 << uxLED;
|
|
|
|
if( xValue )
|
|
{
|
|
/* Turn the LED on. */
|
|
portENTER_CRITICAL();
|
|
{
|
|
uxOutput |= uxLEDBit;
|
|
PORTA = uxOutput;
|
|
}
|
|
portEXIT_CRITICAL();
|
|
}
|
|
else
|
|
{
|
|
/* Turn the LED off. */
|
|
portENTER_CRITICAL();
|
|
{
|
|
uxOutput &= ~uxLEDBit;
|
|
PORTA = uxOutput;
|
|
}
|
|
portEXIT_CRITICAL();
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------*/
|
|
|
|
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
|
|
{
|
|
unsigned portBASE_TYPE uxLEDBit;
|
|
|
|
uxLEDBit = 1 << uxLED;
|
|
portENTER_CRITICAL();
|
|
{
|
|
/* If the LED is already on - turn it off. If the LED is already
|
|
off, turn it on. */
|
|
if( uxOutput & uxLEDBit )
|
|
{
|
|
uxOutput &= ~uxLEDBit;
|
|
PORTA = uxOutput;
|
|
}
|
|
else
|
|
{
|
|
uxOutput |= uxLEDBit;
|
|
PORTA = uxOutput;
|
|
}
|
|
}
|
|
portEXIT_CRITICAL();
|
|
}
|
|
|