led_test.c

s3c44b0+sl811读写u盘程序

//***************************************************************************
#include "..\target\44b.h"
//#include "..\inc\option.h"
//***************************************************************************

void Led_Display1(int LedStatus)
{
	if((LedStatus&0x01)==0x01)		//PC1状态设置
		rPDATC=rPDATC&0xfffD;       //LED0熄灭
	else
		rPDATC=rPDATC|0x02;         //LED0点亮
	
	if((LedStatus&0x02)==0x02)		//PC2状态设置
		rPDATC=rPDATC&0xfffB;
	else
		rPDATC=rPDATC|0x04;

	if((LedStatus&0x04)==0x04)		//PC3状态设置
		rPDATC=rPDATC&0xfff7;
	else
		rPDATC=rPDATC|0x08;
}
//***************************************************************************

/****************************************************************************/
void led_test(void)
{
	int temp;
   Uart_Printf("\nPress any key to exit"); 
   do
   {
    Led_Display1(0x04);		//LED点亮/熄灭状态设置
	Delay(3000);		//延时若干个100us
	Led_Display1(0x02);	
	Delay(3000);		
	Led_Display1(0x01);	
	Delay(3000);
	}
	while(!(rUTRSTAT0 & 0x1)); //Receive data read
	
	temp=RdURXH0();
}
//***************************************************************************