func.h

usb代码

#define Cmdaddr (unsigned char xdata *)0x1000
#define Dataddr (unsigned char xdata *)0x0000

sbit CSUSB=P1^7;
sbit SUSP=P1^0;
sbit TestL=P1^4;

void InitD12()
{
	P0=0xFF;
	P1=0xFE;
	P2=0xFF;
	
	CSUSB=0;			//片选D12
	SUSP=0;				//取消挂起，唤醒D12
	CSUSB=1;
	CSUSB=0;
	
	*Cmdaddr=0xF3;
	*Dataddr=0x1E;
	*Dataddr=0x80;
	
}

void Delay(int n)
{
	int i;
	
	for(;n>0;n--)
	 for(i=0;i<100;i++)
	 {;}
}