led.c

来自「DSP部分功能测试 串口」· C语言 代码 · 共 50 行

//-------------------------------//
//---led.c-----------------------//
//-------------------------------//

#define LED port2040      
#define led_test ( unsigned int *)0x2000  
                  
volatile ioport unsigned int port2040;


extern void LEDTest(unsigned int count);
extern void LEDflash(unsigned int id); 



void LEDTest(unsigned int count)
{
	
  
	unsigned char i,t;
	
	for(;count!=0;count--)
	{
	for(t=0,i=1;t<8;i=i<<1,t++)
	{
		if(t<4)asm("	setc  XF");
		else asm("	clrc  XF");
		LED=~i;
		
		delay(1000);
	}
	}
	LED=0xffff;
}




void LEDflash(unsigned int id)
{
	while(1)
	{
	
		LED=id;
		delay(1500);
		LED=0xffff;
		delay(1500);
	}
}