RE: [ECOS] Simple serial program

["Trenton D. Adams" <tadams at extremeeng dot com>]

Define _complete_!  All the serial program does now is output the string
to /dev/ser1, and that's it.  However, when I try and write it to flash,
it doesn't work properly.  I use the command below.

dl_edb7xxx.exe serial.exe 115200

It downloads just fine, but when I reset the board, and wake it up, it
doesn't output anything to the serial port.  How does one go about
debugging something like this?

-----Original Message-----
From: jlarmour@cambridge.redhat.com
[mailto:jlarmour@cambridge.redhat.com] On Behalf Of Jonathan Larmour
Sent: Tuesday, June 12, 2001 1:00 PM
To: Trenton D. Adams
Cc: 'eCos'
Subject: Re: [ECOS] Simple serial program


"Trenton D. Adams" wrote:
> 
> Ok, it works when I do a GDB connection to my RedBoot.  Once it's been

> loaded to the board using the load command in GDB, I user hypertrm to 
> connect to COM1.  I then type "continue" to run the serial.exe.  It 
> outputs to the COM port.  I have no idea how to make the program work 
> on it's own now though.  So, referring to one of my previous 
> questions.
> 
> > Once a program is complete, it is customary to write it to flash 
> > just like you do with RedBoot right?

Well, if the program is _complete_ yes. You don't need to do it for toy
apps just for testing, but if you want to do it as a learning
experience, then fair enough.

You could either write it into flash so as to replace redboot. But more
flexibly, write it into unused flash and use a redboot boot script to
automatically run it. This gives you the opportunity to change the
application later by aborting the boot script.

Jifl
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