/* | |
* FreeRTOS Kernel V10.0.0 | |
* Copyright (C) 2017 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. If you wish to use our Amazon | |
* FreeRTOS name, please do so in a fair use way that does not cause confusion. | |
* | |
* 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. | |
* | |
* http://www.FreeRTOS.org | |
* http://aws.amazon.com/freertos | |
* | |
* 1 tab == 4 spaces! | |
*/ | |
/* 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(); | |
} | |