usb_halt(hf,1);
usb_dwnload(2000);
usb_halt(hf,0);
void usb_halt(HANDLE hf,byte half_data)
{
_VENDOR_REQUEST_IN vreq;
vreq.bRequest = 0xA0;
vreq.wValue = 0xE600;
vreq.wIndex = 0x00;
vreq.wLength = 0x01;
vreq.bData = half_data;
vreq.direction = 0x00;
ret = DeviceIoControl (hf,
Get_Ctl_Code((0x800)+5,m_buffer,a_any),
&vreq,
sizeof(VENDOR_REQUEST_IN),
NULL,
0,
&nbyte,
NULL);
if(ret==False)
{
ShowMessage("i8051 halt err.\n");
}
}