#include?“TirUart.h“
int?speed_arr[]?=?{?B2000000?B1500000?B921600?B115200?B38400?B19200?B9600?B4800?B2400?B1200?B300
????????????????????B2000000?B1500000?B921600?B115200?B38400?B19200?B9600?B4800?B2400?B1200?B300?};
int?name_arr[]?=?{2000000?1500000?921600?115200?38400??19200??9600??4800??2400??1200??300?
					2000000?1500000?921600?115200?38400??19200??9600?4800?2400?1200??300?};

pthread_mutex_t?uart_write_lock;
pthread_mutex_t?uart_read_lock;
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）;?????
????????????cfsetispeed（&Opt?speed_arr[i]）;??
????????????cfsetospeed（&Opt?speed_arr[i]）;???
????????????status?=?tcsetattr（fd?TCSANOW?&Opt）;??
????????????if??（status?!=?0）?{????????
????????????????perror（“tcsetattr?fd1“）;??
????????????????return;?????
????????????}????
????????????tcflush（fdTCIOFLUSH）;???
????????}??
????}
}

int?UartInit（int?fd?int?baudint?databitsint?stopbitsenum?UartCheck?mParity）
{
	struct?termios?Opt;
	tcgetattr（fd&Opt）;??
	set_speed（fdbaud）;
	pthread_mutex_init（&uart_write_lockNULL）;
	pthread_mutex_init（&uart_read_lockNULL）;
	Opt.c_cflag?&=?（~CSIZE）;
	switch?（databits）
????{???
????case?5:
????????Opt.c_cflag?|=?CS5;
		break;
????case?6:
????????Opt.c_cflag?|=?CS6;
		break;
????case?7:?????
????????Opt.c_cflag?|=?CS7;?
????????break;
????case?8:?????
????????Opt.c_cflag?|=?CS8;
????????break;???
????default:?
		Opt.c_cflag?|=?CS8;?
????????printf（“Unsupported?data?size/n“）;?
????????break;??
????}
	
????switch?（mParity）?
????{???
????????case?NO_CHECK:????
????????????Opt.c_cflag?&=?~PARENB;???/*?Clear?parity?enable?*/
????????????Opt.c_iflag?&=?~INPCK;?????/*?Enable?parity?checking?*/?
????????????break;???
????????case?ODD_CHECK:?????
????????????Opt.c_cflag?|=?（PARODD?|?PARENB）;?/*?設(shè)置為奇效驗(yàn)*/??
????????????Opt.c_iflag?|=?INPCK;?????????????/*?Disnable?parity?checking?*/?
????????????break;??
????????case?PARITY_CHECK:???
????????????Opt.c_cflag?|=?PARENB;?????/*?Enable?parity?*/????
????????????Opt.c_cflag?&=?~PARODD;???/*?轉(zhuǎn)換為偶效驗(yàn)*/?????
????????????Opt.c_iflag?|=?INPCK;???????/*?Disnable?parity?checking?*/
????????????break;?
????????default:???
????????????printf（“Unsupported?parity/n“）;
????????????Opt.c_cflag?&=?~PARENB;
????????????Opt.c_cflag?&=?~CSTOPB;
			break;??????
????}??
????/*?設(shè)置停止位*/??
????switch?（stopbits）
????{???
????????case?1:????
????????????Opt.c_cflag?&=?~CSTOPB;??
????????????break;??
????????case?2:????
????????????Opt.c_cflag?|=?CSTOPB;??
???????????break;
????????default:????
?????????????printf（“Unsupported?stop?bits/n“）;??
?????????????return?UART_FALSE;?
????}?
	Opt.c_cc[VTIME]?=?0;
	Opt.c_cc[VMIN]?=?0;?/*?Update?the?options?and?do?it?NOW?*/
	

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-07-26?17:40??uart\
?????文件?????????584??2018-07-26?15:33??uart\Makefile
?????文件????????5631??2018-07-26?17:36??uart\uart_api.c
?????文件?????????857??2018-07-26?15:17??uart\uart_api.h
?????文件????????1572??2018-07-26?17:38??uart\uart_main.c