两台F85,一台A向tty0(rs232)口写数据,另一台B从对应口读数据,两台机器都开机,一切正常,B关机后,A会从tty0读到写进去的数据,B开机后,A则读不到。想改改tty属性,可也不是很清楚tty的一堆属性是什么意思,那位给我解释解释?谢谢了!
两台F85,一台A向tty0(rs232)口写数据,另一台B从对应口读数据,两台机器都开机,一切正常,B关机后,A会从tty0读到写进去的数据,B开机后,A则读不到。想改改tty属性,可也不是很清楚tty的一堆属性是什么意思,那位给我解释解释?谢谢了!
求帮助!!!! 用termois 这结构体 ,编的rs232通信,在ARM板上用arm-linux-gcc 能编译吗? 电脑pingARM板 ping不通,但是ARM板能ping通电脑,那在电脑上client端和 ARM板上server端 能建立通信吗?
头文件省略,main函数如下: int fd; fd = open( "/dev/ttyS0", O_RDWR); if (-1 == fd){ perror(" 提示错误!"); } 程序运行后总是显示:提示错误,说明打开串口失败。我试过ttyS0,ttyS1,ttyS2,都不行。 我的环境是台式机,机箱后有串口rs232,并且有超级终端是可以使用。装的vmmare6.0,虚拟的redhat9。 求指教原因,我是菜鸟,初次接触串口编程问题。
Introduction on monitoring serial rs232 data The rs232 standard defines an asynchronous way of communication between DTE, data terminal equipment (computers, printers, etc.) and DCE, data communication equipment (modems). This type of communication has become the minority and nowadays serial communications is mainly between two DTE devices using a null modem cable . Although this is 1:1 communica...
/**********************************rs232.h 头文件*******************************/ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define FALSE -1 #define TRUE 0 #define NET_PORT 19988 /**打开设备**/ extern int o...
Linux 下的串口通信(rs232) Serial Programming Guide for POSIX Operating Systems 5th Edition Michael R. Sweet Copyright 1994-1999, All Rights Reserved. Serial Port FilesEach serial port on a UNIX system has one or more device files (files in the /dev directory) associated with it: Table 2 - Serial Port Device Files System Port 1 Port 2 IRIX® /dev/ttyf1 /dev/ttyf2 HP-UX /dev/tty1p0 /dev/tty2p0 ...