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Re: Optimising Standard Serial Driver
- From: Mike Jastrebtsoff <jam2000 at pisem dot net>
- To: Andy Atkinson <andya at hydrix dot com>
- Cc: ecos-discuss at sources dot redhat dot com
- Date: Mon, 27 Sep 2004 13:59:35 +0700
- Subject: Re: [ECOS] Optimising Standard Serial Driver
- References: <1096264007.3690.33.camel@monty.private.hydrix.com>
- Reply-to: Mike Jastrebtsoff <jam2000 at pisem dot net>
Hello, Andy.
What CPU do you use? If it's a AT91xxx then default serial driver
has a problems with high baud rates. I am using patched version(by
Paul Sheer & John Recker). This version uses PDC and is working good.
(but Redboot's ymodem proto doesn't work with 115200 bps too)
You can find it in maillist archives.
--
Regards,
Mike
AA> Hi All,
AA> I am having some problems with buffer overruns when using the 'standard'
AA> eCos low-level serial driver at 115200 baud. I have seen from earlier
AA> discussions that the design of this driver does not cope with a heavy
AA> workload - what is the best way to optimise this driver for coping with
AA> many devices and/or high baud rates.
AA> Any help appreciated (sorry if this is going over old ground!!)
AA> Andy Atkinson
AA> andya@hydrix.com
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