Re: Serial (RS232) communication - failing to detect stop bit

On Sep 13, 8:23 am, Grant Edwards <gra...@xxxxxxxx> wrote:
On 2007-09-12, arka.n.roy <arka.n....@xxxxxxxxx> wrote:

I have come to the conclusion that there is something fishy about the
serial driver in Gentoo.

You are wrong. I've used serial ports extensively for several
years under Gentoo (and for many years before that under
various other distros going back about 15 years).

There is nothing wrong with the Linux serial driver (Gentoo or
otherwise).

Below I describe the tests that led me to this conclusion.


On Gentoo you had no problems receiving data?

The whole reason I started this test was because I had a measuring
instrument connected to the machine via RS232 and wasn't getting
data. The terminal tests were just to try and isolate the cause.

[...]

The terminal software used was Minicom on Gentoo, and
HyperTerminal on Windows.

Hyperterminal is utter crap. Tests done using hyperterminal
are inadmissable. I've had occasional weird issues with
minicom as well (but it's still a lot better then HT).

Get something like teraterm pro for Win32 and CKermit for Linux.

[...]


However on PC-2 when I used the Linux (Xandros) partition on PC-2, in
test cases 3 and 4 and 5, I used Minicom.


So this leaves me with the conclusion that there is something flawed
in Gentoo itself.

I don't beleive it. I've been using serial ports every day
under Gentoo for years and have never seen any problems.


I hope that is the case. I need it to work! I just don't understand
why it is only on Gentoo that I get this, and regardless of whether it
is my installation, someone else's installation, or the live CD
Gentoo.


By the way, sorry about the cross-posting. Someone else at
comp.os.linux.networking mentioned that. Do people generally look
everything in comp.os.linux* on average, or is it a greater or lesser
level of granularity? I guess I will need to pick one and stick with
it but am still not sure which one.

Thanks,
Arka

.

Relevant Pages