/*receive.c??沒有線程*/
#include???????????/*標準輸入輸出定義*/
#include??????????/*標準函數庫定義*/
#include??????????/*Unix標準函數定義*/
#include???????/**/
#include????????/**/
#include???????????/*文件控制定義*/
#include?????????/*PPSIX終端控制定義*/
#include???????????/*錯誤號定義*/
#define??TRUE?0
#define??FALSE?-1
/***@brief??設置串口通信速率
*@param??fd?????類型int??打開串口的文件句柄
*@param??speed??類型int??串口速度
*@return??void*/

int?speed_arr[]?=?{B115200?B38400?B19200?B9600?B4800?B2400?B1200?B300
	????B38400?B19200?B9600?B4800?B2400?B1200?B300?};
int?name_arr[]?=?{11520038400??19200??9600??4800??2400??1200??300
	????38400??19200??9600?4800?2400?1200??300?};
	?????
//設置波特率
void?set_speed（int?fd?int?speed）
{
??int???i;
??int???status;
??struct?termios???Opt;
??tcgetattr（fd?&Opt）;
??for?（?i=?0;??i????{
???	if??（speed?==?name_arr[i]）
???	{
???	????tcflush（fd?TCIOFLUSH）;??//清空串口的緩沖區?
????	cfsetispeed（&Opt?speed_arr[i]）;
????	cfsetospeed（&Opt?speed_arr[i]）;
????	status?=?tcsetattr（fd?TCSANOW?&Opt）;
????	if??（status?!=?0）
????????????perror（“tcsetattr?fd1“）;
?????	return;
?????	}
???		tcflush（fdTCIOFLUSH）;//清空串口的緩沖區?
???}
}
/**
*@brief???設置串口數據位，停止位和效驗位
*@param??fd?????類型?int??打開的串口文件句柄*
*@param??databits?類型?int?數據位??取值為7?或者*
*@param??stopbits?類型?int?停止位??取值為1?或者*
*@param??parity??類型?int??效驗類型取值為NEOS
*/
//此類是封好的比較完整的類?可以直接使用?
static?int?set_Parity（int?fd?int?databits?int?stopbits?int?parity）
{
	struct?termios?options;
	
	if（tcgetattr（fd&options）!=0）?
	{?
		perror（“SetupSerial?1“）;?????
		return（FALSE）;??
	}
	options.c_cflag?&=?~CSIZE;
	
	switch?（databits）?/*設置數據位數*/
	{???
		case?7:		
			options.c_cflag?|=?CS7;?
			break;
		case?8:?????
			options.c_cflag?|=?CS8;
			break;???
		default:????
			fprintf（stderr“Unsupported?data?size\n“）;?return?（FALSE）;??
	}
	//設置校驗類型
	switch?（parity）?
	{???
		case?‘n‘:
		case?‘N‘:????
			options.c_cflag?&=?~PARENB;???/*?Clear?parity?enable?*/
			options.c_iflag?&=?~INPCK;?????/*?Enable?parity?checking?*/?
			break;??
		case?‘o‘:???
		case?‘O‘:?????
			options.c_cflag?|=?（PARODD?|?PARENB）;?/*?設置為奇效驗*/??
			options.c_iflag?|=?INPCK;?????????????/*?Disnable?parity?checking?*/?
			break;??
		case?‘e‘:??
		case?‘E‘:???
			options.c_cflag?|=?PARENB;?????/*?Enable?parity?*/????
			options.c_cflag?&=?~PARODD;???/*?轉換為偶效驗*/?????
			options.c_iflag?|=?INPCK;???????/*?Disnable?parity?checking?*/
			break;
		case?‘S‘:?
		case?‘s‘:??/*as?no?parity*/???
	????		options.c_cflag?&=?~PARENB;
			options.c_cflag?&=?~CSTOPB;break;??
		default:???
			fprintf（stderr“Unsupported?parity\n“）;????
			return?（FALSE）;??
	}?
	?
	//設置停止位??
	switch?（stopbits）
	{???
		case?1:
			options.c_cflag?&=?~CSTOPB;
			break;??
		case?2:????
			options.c_cflag?|=?CSTOPB;??
	???		break;
		default:????
		?	fprintf（stderr“Unsupported?stop

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????5907??2010-02-25?00:05??uart.c

-----------?---------??----------?-----??----

?????????????????5907????????????????????1