BOUNCE rtl@rtlinux.org: Approval required: Non-member submissionfrom [Evgeni Dobrev <Evgeni_Dobrev@excite.com>] (fwd)

[Der Herr Hofrat <der.herr@hofr.at>]

>From owner-rtl Fri Jun  1 03:15:26 2001
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Date: Fri, 1 Jun 2001 02:10:05 -0700 (PDT)
From: Evgeni Dobrev <Evgeni_Dobrev@excite.com>
To: rtl@fsmlabs.com
Subject: rt_com 
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hello all,

i am writing a device driver for an eib (European Instalation Bus) device. 
It communicates with a serial port.  I wrote my own module which I load with
rt_com and communicate with the device (19200 8n1)- it sends the computer a
byte and the computer sends it back.  The problem is that I want to make the
response time of the serial device smaller.

see i connected an osciloscope to the serial port and measured delay of 2.2
miliSecs between the time the driver gets the byte and send the answer.  I
need to bring the time down to a bit less than 150 microSecs.

Hope that you can help me.

evgeni





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