led_test.c

EMLINK 开发板 for dsp533 源代码

/*__________________________________________________________________________
|																			|
| File   	:	led_test.c													|
| Software  :	VisualDSP++													|
| Hardware 	:	Embest ADSP-BF53X EVB										|
| Author 	:	embest														|
| Desc   	:	led test example file										|
|___________________________________________________________________________|
*/
#include <cdefBF533.h>



/*__________________________________________________________________________
|																			|
|	Name:	led_init()														|
|																			|
|	Func:	initialize the LED												|
|																			|
|	para:	none															|
|																			|
|	ret :	none															|
|___________________________________________________________________________|
*/
static void led_init(void)
{
	__asm(
		"R0 = 0x32;\n"
		"SYSCFG = R0;\n"
	);
	
	*pFIO_DIR 	  = 0x0180;		//Direction setiing
	*pFIO_INEN    = 0x0400;		//Enable Button Interruption >PF9
	*pFIO_MASKA_D = 0x0400;	
	*pFIO_EDGE 	  = 0x0400;		//Setting PFA interrupt  
}


/*__________________________________________________________________________
|																			|
|	Name:	led_allon()														|
|																			|
|	Func:	light two LED													|
|																			|
|	para:	none															|
|																			|
|	ret :	none															|
|___________________________________________________________________________|
*/
static void led_allon(void)
{	
	int 	i = 0;
	
	*pFIO_FLAG_D &= 0xfe7f;
	
	while( i < 0x8fffff )
		i++;
}


/*__________________________________________________________________________
|																			|
|	Name:	led_allof()														|
|																			|
|	Func:	close two LED													|
|																			|
|	para:	none															|
|																			|
|	ret :	none															|
|___________________________________________________________________________|
*/
static void led_alloff(void)
{
	int 	i = 0;
	
	*pFIO_FLAG_D |= 0x0180;
	
	while( i < 0x8fffff )
		i++;
}


/*__________________________________________________________________________
|																			|
|	Name:	led_test()														|
|																			|
|	Func:	close two LED													|
|																			|
|	para:	none															|
|																			|
|	ret :	none															|
|___________________________________________________________________________|
*/
void led_test()
{
    led_init();
	
	while(1)
	{
		led_allon();
		led_alloff();
	}
}