usbsetconfiguration.c

AT89C51SND1C方案mp3资料,使用三星FLASH.

#ifndef _USB_DEFINE
 #include "USB.c"
#endif

void USBSetConfiguration(void)
{
	if (USBSetup->wValue)
		SET_BIT_1(USBCON);			//设置CONFIG
	else
		CLEAR_BIT_1(USBCON);
	UEPNUM=0x01;				//设置Endpoint1
	UEPCONX=USB_EPMOD_BULK_OUT;
	UEPNUM=0x02;				//设置Endpoint2
	UEPCONX=USB_EPMOD_BULK_IN;
	UEPNUM=0x00;				//设置Endpoint0
	USB_SEND_ZERO_PACKET;			//发送0字节包
	UEPNUM=0x02;				//设置Endpoint2
}