This is the mail archive of the
ecos-discuss@sources.redhat.com
mailing list for the eCos project.
printf in Redboot/GDB
- From: Scott Dattalo <scott at dattalo dot com>
- To: ecos-discuss at sources dot redhat dot com
- Date: Thu, 10 Oct 2002 16:40:46 -0700 (PDT)
- Subject: [ECOS] printf in Redboot/GDB
The question is which option in the ecos.ecc config file enables printf
output?
I've built redboot for my custom hardware - something like an EB40a, but
not. (I'm not using Thomas' or Tim's patches at the moment, but look
forward to doing so soon [meanwhile I've hacked the eb40 port to remove
the hardcoded memory constants]). I've selected the redboot_ROM target;
i.e. redboot runs in flash. I've got gdb talking to the board and I can
debug just fine - except that printf's don't print.
>From what I've read, it would seem that
CYGDBG_HAL_DIAG_TO_DEBUG_CHAN
is the cdl component that needs to be enabled.
One more observation: when I run redboot out of RAM and not ROM, the
printfs do work. Is there some kind of issue with CYG_HAL_STARTUP being
set to ROM instead of RAM that affects the printf's?
------
Another issue that I suspect involves configuration is "Control-C". I
cannot interrupt my code with control-C.
Scott
--
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss