FreeRTOS-Kernel/FreeRTOS/Demo/PIC32MX_MPLAB/ParTest/ParTest_USBII_Starter_Kit.c
Richard Barry 1b7a2e40a3 Update PIC32MX demo:
Change configCHECK_FOR_STACK_OVERFLOW to 3 to also check the interrupt stack.
Add a build configuration to allow use on the PIC32 USBII starter kit.
Increase some delays when talking to the LCD to ensure it always displays correctly.
Rewrite the register test tasks.
2013-11-07 09:54:13 +00:00

128 lines
4.9 KiB
C

/*
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This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify it under
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*/
/* Scheduler includes. */
#include "FreeRTOS.h"
/* Demo app includes. */
#include "partest.h"
#define ptOUTPUT 0x07
#define ptALL_OFF 0x07
#define ptNUM_LEDS 3
/*-----------------------------------------------------------
* Simple parallel port IO routines.
*-----------------------------------------------------------*/
void vParTestInitialise( void )
{
/* Bottom 3 LEDs output. */
TRISD = TRISD & ~ptOUTPUT;
PORTD = PORTD & ~ptALL_OFF;
}
/*-----------------------------------------------------------*/
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
unsigned portBASE_TYPE uxLEDBit;
if( uxLED < ptNUM_LEDS )
{
/* Which port A bit is being modified? */
uxLEDBit = 1 << uxLED;
if( xValue != 0 )
{
/* Turn the LED on. Use of the PORTASET register removes the need
to use a critical section. */
PORTDSET = uxLEDBit;
}
else
{
/* Turn the LED off. Use of the PORTACLR register removes the need
to use a critical section. */
PORTDCLR = uxLEDBit;
}
}
}
/*-----------------------------------------------------------*/
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
unsigned portBASE_TYPE uxLEDBit;
if( uxLED < ptNUM_LEDS )
{
uxLEDBit = 1 << uxLED;
/* Use of the PORTAINV register removes the need to use a critical section. */
PORTDINV = uxLEDBit;
}
}