Demo/CORTEX_LM3S102_Rowley/Demo3/ParTest.c

/*
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*/

/*-----------------------------------------------------------
 * Simple parallel port IO routines.
 *-----------------------------------------------------------*/

/*
*/

/* Kernel include files. */
#include "FreeRTOS.h"
#include "task.h"
#include "partest.h"

/* Hardware specific include files. */
#include "DriverLib.h"

static const unsigned portLONG ulLEDs[] =
{
	GPIO_PIN_6, GPIO_PIN_1, GPIO_PIN_0
};

#define partstLED_PINS ( GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_6 )

#define partstMAX_OUTPUT_LED	( ( unsigned portCHAR ) 3 )

/*-----------------------------------------------------------*/
void vParTestInitialise( void )
{
portBASE_TYPE xLED;

	/* The LED's are on port B. */
    GPIODirModeSet( GPIO_PORTB_BASE, partstLED_PINS, GPIO_DIR_MODE_OUT );

	for( xLED = 0; xLED < partstMAX_OUTPUT_LED; xLED++ )
	{
		vParTestSetLED( xLED, pdFALSE );
	}
}
/*-----------------------------------------------------------*/

void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
	vTaskSuspendAll();
	{
		if( uxLED < partstMAX_OUTPUT_LED )
		{
			if( xValue == pdFALSE )
			{
				GPIOPinWrite( GPIO_PORTB_BASE, ulLEDs[ uxLED ], ulLEDs[ uxLED ] );
			}
			else
			{
				GPIOPinWrite( GPIO_PORTB_BASE, ulLEDs[ uxLED ], ~ulLEDs[ uxLED ] );
			}
		}	
	}
	xTaskResumeAll();
}
/*-----------------------------------------------------------*/

void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
portBASE_TYPE xCurrentValue;

	vTaskSuspendAll();
	{
		if( uxLED < partstMAX_OUTPUT_LED )
		{
			xCurrentValue = GPIOPinRead( GPIO_PORTB_BASE, ulLEDs[ uxLED ] );
			if( xCurrentValue )
			{
				GPIOPinWrite( GPIO_PORTB_BASE, ulLEDs[ uxLED ], ~ulLEDs[ uxLED ] );
			}
			else
			{
				GPIOPinWrite( GPIO_PORTB_BASE, ulLEDs[ uxLED ], ulLEDs[ uxLED ] );
			}
		}
	}
	xTaskResumeAll();
}