LEON3 Console/Serial Driver

[Vincent Galbo]

Hello Joel,

 

I'm attempting to use the console as a message port for debugging (once we
get SpW-USB dongles we will move to SpW). Our messages are hex based and the
console doesn't seem to like that. For instance, my application right now is
essentially receiving from the console and sending the received message back
out to the console. This works fine in console situations. For example, when
I type "hello world", I get the reply "hello world" back. However, if I send
the console a hex based message, let's say "0x90 eb 00 10 00 10", I get some
garbage back, such as "0x90 eb 50 54 50 5e". I think it's also waiting for
an ASCII carriage return, because when I send it 0x0D (ASCII carriage
return), I get some of the data I originally sent but with extra data mixed
in. By the way, I'm using cutecom for these tests. 

 

So, my question is if I could somehow replace the console driver with a
generic serial driver. One that doesn't format, expect carriage returns,
etc. 

 

Thank you,

Vincent Galbo

 

From: Joel Sherrill [mailto:joel.sherrill at oarcorp.com] 
Sent: Monday, March 18, 2013 12:00 PM
To: Vincent Galbo
Cc: rtems-users at rtems.org
Subject: Re: LEON3 Console/Serial Driver

 

On 3/18/2013 10:38 AM, Vincent Galbo wrote:

Hello,

 

Does anyone know how to open the LEON3 console/serial port (/dev/console)
with only a generic serial port driver rather than a console driver? 

 

What do you mean? It is a regular serial port. It is just associated
with stdin, stdout and stderr.

You can use termios to change any settings.  Treat it just like
you would on a UNIX like OS



Thank you,

Vincent Galbo

 






-- 
Joel Sherrill, Ph.D.             Director of Research & Development 
joel.sherrill at OARcorp.com        On-Line Applications Research
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