[ECOS] RE: Retry 0: NAK on sector. (Solution)

["Beymer, Mike" <Mike dot Beymer at itron dot com>]

  I found the solution to my problem and thought I would post it to close the 
information loop. 

Apparently PSI's Minno platform has a problem in the serial
line, most likely noise (not verified). The serial bus was configured for 
115200 baud, when I dropped the baud rate to 57600 the problem went away. 

When I turned on debugging in xyzModem.c, doing a dump at the address returned
from a debugging statement showed the header from ymodem transfer to 
have some dropped characters.

 -Mike Beymer

-----Original Message-----
From: Beymer, Mike 
Sent: Wednesday, May 14, 2003 2:50 PM
To: ecos-discuss@sources.redhat.com
Subject: Retry 0: NAK on sector.


I'm working on a port on the PSI Minno (OMAP 5910) PCA, I now have Redboot
communicating through the serial port to minicom. Redboot is running from
SRAM. When I attempt to do a load, (load -r -b 0x80000 -m ymodem) through 
minicom, I am receiving an error (Retry 0: NAK on sector). I've 
found several previous posts referencing this error but none seem 
to apply here. Ymodem retries out and aborts. It doesn't appear 
that anything was loaded.

Can anyone offer any pearls of wisdom?
 -Thanks 
     Mike Beymer

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