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RE: Simple serial program


What is /dev/ser0 then?  Is it not really a serial port, or is it just
the first serial port and the same as /dev/ser1?

-----Original Message-----
From: jlarmour@cambridge.redhat.com
[mailto:jlarmour@cambridge.redhat.com] On Behalf Of Jonathan Larmour
Sent: Tuesday, June 12, 2001 12:01 PM
To: Trenton D. Adams
Cc: 'eCos'
Subject: Re: [ECOS] Simple serial program


"Trenton D. Adams" wrote:
> 
> Once a program is complete, it is customary to write it to flash just 
> like you do with RedBoot right?
> 
> If so, how to I get the serial.exe example that comes with the eCos 
> installation to work?  I tried changing "/dev/haldiag" to 
> "/dev/ttyS0", but it doesn't write to the serial port.  I have no clue

> how to write to the serial port, and the documentation doesn't seem to

> help very much.

You have to choose a serial port for your board. From the edb7xxx serial
driver configuration you should see that you can use /dev/ser1 or
/dev/ser2. Note that one of these will be your GDB connection, be
warned. You should use the other serial port instead to allow
uninterrupted use of GDB.

Jifl
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