RE: [ECOS] GDB stubs on EDB7211

["Lewin A.R.W. Edwards" <larwe at larwe dot com>]

Hello Olaf,

>Thanks for your help so far.

Well, I actually haven't helped you yet :)

>I tried to built the EDB7211 gdb stubs with eCos 1.3.1, but it
>doesn't work (I followed the guidelines in the ecos-tutorial-arm.pdf file).
>Any suggestions why the EDB7211 GDB stubs I built myself with eCos 1.3.1
>don't work and the shipped images do work?

One thing I discovered recently with help from the Red Hat guys is that if 
you make a global change to your eCos configuration (such as switching from 
RAM to ROM startup), it is advisable to delete the build tree completely 
rather than just doing a make clean. Perhaps that issue has bitten you?

Also, what tools are you using? (I have an ulterior motive in asking, btw ;)

I have not tried to build stubs. However I _have_ built ROM-bootable 
applications, so I know that much is possible. I have also noticed some 
bizarre behavior on the EDB7209 board [with EP7212 on it], perhaps you 
might get a better result if you follow the exact steps of:

* power down board, fit JP2
* power up board, press and hold RESET for several seconds
* press and hold WAKEUP for at least a second
* download .bin file
* power down board, remove JP2
* wait a few minutes
* power up board, press and hold RESET for a few seconds
* press and hold WAKEUP for at least a second
* board may not start up immediately, it may require several resets and 
"time out" sitting powered off

When you try your stub on the EDB, does the "DIAG" LED come on?

=== Lewin A.R.W. Edwards (Embedded Engineer)
Work: http://www.digi-frame.com/
Personal: http://www.zws.com/ and http://www.larwe.com/

"Und setzet ihr nicht das Leben ein,
Nie wird euch das Leben gewonnen sein."