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The code:
/////////////////////////////////////////////////////////////////////////////
tv.tv_sec = 3; /*3 second*/
tv.tv_usec = 0;
FD_ZERO(&rfds);
FD_SET(fd,...

Perderabo, thanks a lot.

After select() and if(FD_ISSET(fd, &rfds)), then I read the buffer. As you mentioned, I only can read 8 bytes one time (my full reply message is 13 bytes) by...

I am using linux termios structure to configure serial port and read the port by read function. For some reason, if I read the whole buffer, almost every time the buffer does not contain the correct...