#include?????
#include?????
#include?????
#include???
#include?????
#include??????
#include????
#include?????
#include??
???
#define?UARTBUFF?512?


int?UartOpen（char*?port）??
{???
	int?fd?=?-1;
	fd?=?open（?port?O_RDWR|O_NOCTTY|O_NDELAY）;??
????if?（fd?????{??
????????perror（“Can‘t?Open?Serial?Port“）;??
????????return?-1;??
????}??
?????//恢復(fù)串口為阻塞狀態(tài)?????????????????????????????????
????if（fcntl（fd?F_SETFL?0）?????{??
????????printf（“fcntl?failed!\n“）;??
????????return?-1;??
????}???????
????
	//測試是否為終端設(shè)備??????
????if（0?==?isatty（fd））??
????{??
????????printf（“standard?input?is?not?a?terminal?device\n“）;??
????????return（-1）;??
????}??
	?????????????
	return?fd;??
}??

//關(guān)閉串口并返回串口設(shè)備文件描述?
void?UartClose（int?fd）??
{??
????close（fd）;??
}??
???
int?UartSet（int?fdint?speedint?flow_ctrlint?databitsint?stopbitschar?parity）??
{??????
????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????8336??2018-01-24?13:37??uart.c