//?RS-232?example
//?Compiles?with?Microsoft?Visual?C++?5.0/6.0
//?（c）?fpga4fun.com?KNJN?LLC?-?2003?2004?2005?2006

#include?
#include?
#include?

HANDLE?hCom;

void?OpenCom（）
{
	DCB?dcb;
	COMMTIMEOUTS?ct;

	hCom?=?CreateFile（“COM1:“?GENERIC_READ?|?GENERIC_WRITE?0?NULL?OPEN_EXISTING?FILE_ATTRIBUTE_NORMAL?NULL）;
	if（hCom==INVALID_HANDLE_VALUE）?exit（1）;
	if（!SetupComm（hCom?4096?4096））?exit（1）;

	if（!GetCommState（hCom?&dcb））?exit（1）;
	dcb.BaudRate?=?115200;
	（（DWORD*）（&dcb））[2]?=?0x1001;??//?set?port?properties?for?TXDI?+?no?flow-control
	dcb.ByteSize?=?8;
	dcb.Parity?=?NOPARITY;
	dcb.StopBits?=?2;
	if（!SetCommState（hCom?&dcb））?exit（1）;

	//?set?the?timeouts?to?0
	ct.ReadIntervalTimeout?=?MAXDWORD;
	ct.ReadTotalTimeoutMultiplier?=?0;
	ct.ReadTotalTimeoutConstant?=?0;
	ct.WriteTotalTimeoutMultiplier?=?0;
	ct.WriteTotalTimeoutConstant?=?0;
	if（!SetCommTimeouts（hCom?&ct））?exit（1）;
}

void?CloseCom（）
{
	CloseHand

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????3555??2006-01-06?11:19??async_receiver.v
?????文件????????2587??2006-01-06?11:27??async_transmitter.v
?????文件????????1831??2006-06-10?11:28??com.c