Lpc2000

Hello all.  Hope everyone is good!

:)

I have a quick question, I am writing a flash utility for the LPC2124
and LPC2138 parts for Linux.  I have gotten everything done, except one
part where I am a little confused on...

When I write uuencoded data to the micro (that is sending data to the
micro), do I required the following:

data<cr><lf>

If so then, if i am doing it write I believe, and I get the data echo'ed
back to me (I didn't turn off echo, thats why).

After the twenty lines of uuencoded data being sent i send the crc
(which is just the adding of the raw bytes of all the twenty lines.  But
when I do the following:

crc<cr><lf>

I get the RESEND<cr><lf> back...any ideas why????

Thanks a million.

-- 
Sami Kibria <skibria@...>

At 02:47 PM 4/14/05 -0500, Sami Kibria wrote:
>I have a quick question, I am writing a flash utility for the LPC2124
>and LPC2138 parts for Linux.  I have gotten everything done, except one
>part where I am a little confused on...
>
>When I write uuencoded data to the micro (that is sending data to the
>micro), do I required the following:
>
>data<cr><lf>
>
>If so then, if i am doing it write I believe, and I get the data echo'ed
>back to me (I didn't turn off echo, thats why).
>
>After the twenty lines of uuencoded data being sent i send the crc
>(which is just the adding of the raw bytes of all the twenty lines.  But
>when I do the following:
>
>crc<cr><lf>
>
>I get the RESEND<cr><lf> back...any ideas why????

Take a look the Martin Maurer's LPC21ISP utility or the GTK based utility 
by Paul Stoffregen.  They both work and I know the LPC21ISP utility is 
being expanded to cover more variants (there are some modified versions 
available on Martins site).  There's a link in the links section of the 
group I believe or There's a link from my site (see below).

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,   be 
they legal, genetic, or physical.  If you don't believe me, try to chew a 
radio signal. "  -- Kelvin Throop, III
http://www.aeolusdevelopment.com/