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Re: Help!!!!!!-----Serial driver overrun error?????
- To: joyee <joyee at zh dot t2-design dot com>
- Subject: Re: [ECOS] Help!!!!!!-----Serial driver overrun error?????
- From: Jonathan Larmour <jlarmour at redhat dot com>
- Date: Tue, 18 Sep 2001 21:31:31 +0100
- Cc: ecos-discuss at sources dot redhat dot com
- Organization: Red Hat UK Ltd.
- References: <3BA61166.8020204@zh.t2-design.com>
joyee wrote:
>
> Hi, everyone :
>
> Here I met a problem , when my serial driver receive
> data in interrupt ,it will
> indicate there are overrun errors when received datas more than 16, and
> my trigger level
> is 8 in FCR register .That is it always indicate LSR value =0x63, By the
> way , I used 24.576MHz clock not standard 1.8432MHz and baud rate is
> 9600Hz in my serial.
> maybe I have made a mistake when used 24.576MHZ clock,
> but I don't know what led to the error ? and can anyone help me how to
> resolve this problem ?
When you say you are using a 24.576MHz clock do you mean that you just
changed something in your eCos configuration to do this? If so, you may be
getting flooded with clock interrupts.
9600 baud should be easily possible at that speed normally.
Jifl
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