[ECOS] AT91EB40 RedBoot install problems - solution!

J Sevy jsevy@mcs.drexel.edu
Wed Sep 4 20:44:00 GMT 2002


I had the same problems reported on the list when trying to install 
RedBoot on my AT91EB40 board - I'd follow the instructions to the letter 
in the RedBoot manual, but after suspending gdb with ctl-Z, minicom 
wouldn't communicate with the board at all.

Then I lucked out - I started gdb (for the 1000th time!), went through 
the instructions up to the "lo" command, and then happened to start to 
search for stuff on the mailing list pertaining to this problem. When I 
got back to gdb after 40 minutes or so, I issued the "c" command, and 
sure enough, RedBoot started, as evidenced by the fact that all 3 LEDs 
lit up. Suspending gdb and starting minicom, I was finally able to 
communicate fine with RedBoot.

So it may all be a matter of timing - after the load command finishes, 
the board still isn't immediately ready to have the RedBoot RAM program 
started. I don't know how long is long enough to wait before issuing the 
continue command, but if the 3 LEDs don't light up, it wasn't long enough...
   \
   Jon
-- 

  ________________________________________________________________________
|                                                                        |
|                            Jonathan C. Sevy                            |
|                 Geometric and Intelligent Computing Lab                |
|                Dept. of Mathematics and Computer Science               |
|                           Drexel University                            |
|                     http://gicl.mcs.drexel.edu/sevy                    |
|________________________________________________________________________|




-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss



More information about the Ecos-discuss mailing list