Are you using fflush() after your sends, this flushes  the buffer when your
send string is small and forces a complete send of your data.

-----Original Message-----
From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU] On
Behalf Of Herbert Graf
Sent: Monday, February 16, 2004 2:12 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: [EE]: Serial Port and Linux

Hello all,

I'm trying to write a small program that sends a few things over a serial
port and then reads a few things back. I've having trouble getting it to
work.

I'm using open, write and read to do my things, accessing the device through
the /dev/ttyS1 interface. Things work fine for a while and then seem to go
crazy. For example, I can send a few things down the line, but then when I
do a single byte read from the port I continuously get the newline
character.

Anybody have some simple gcc compatible c code of accessing the serial port
in Linux? I'm using Redhat 9.0 and gcc. Thanks, TTYL

----------------------------------
Herbert's PIC Stuff:
http://repatch.dyndns.org:8383/pic_stuff/

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