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Re: Serial overruns
- To: Matt Holgate <matt at dcs dot gla dot ac dot uk>
- Subject: Re: [ECOS] Serial overruns
- From: Jonathan Larmour <jlarmour at redhat dot com>
- Date: Tue, 18 Sep 2001 22:24:04 +0100
- Cc: ecos-discuss at sources dot redhat dot com
- Organization: Red Hat UK Ltd.
- References: <Pine.OSF.4.33.0109171816340.26791-100000@bathurst.dcs.gla.ac.uk>
Matt Holgate wrote:
>
> I've enabled hardware flow control, although I'm pretty sure the problem
> is that the serial DSR is not responding in time to keep up with the data
> rate (only 38400 baud), rather than the eCos buffer overflowing (it is set
> to the default size of 128 bytes).
Still, hardware flow control should prevent this. It looks like it's gotten
broken since the PC target uses the generic 16550 serial driver (assuming
you are using anonymous CVS, not 1.3.1), and that supports it.
This used to work. So if anyone has time to look at that, that would be
good.
Jifl
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