Short guide how to run gllin with chroot
kyale at broadcom.com
Mon Sep 17 20:18:02 CEST 2007
I sent a GLLIN rebuilt for the 2007.2 toolchain to Mickey, and I believe
he is testing it. To run it, you'll need a named pipe /tmp/nmeaNP
unless you specifically disable named pipes with the -np option. I
believe Sean and Broadcom legal folks are straightening out the SLA/EULA
for the GLLIN and OMGUI.
About these exceptions:
1) src/hal_linux_tt.c:1043: glcb_ExceptionAssert:
This is from a very old version of the GLLIN, and won't happen
in the 2007.2 build.
2) early exit(3) in halInit()/674
To overcome hardware problems, there is the gllin option
The GLLIN will perform an early "exit(3);" call after this
It toggles GPIO lines to recover the GPS hardware, i.e. bring it
back to a sane state.
In earlier GLLINs, this might have been one of the low-level
tests or training sequences with slighty different wording, and your
GLLIN operation instructions might have performed this step each time
you start the GLLIN as a safety measure. This means that you'll always
have a cold start, so it is not encouraged for good GPS performance.
From: Bartlomiej Zdanowski [mailto:b.zdanowski at autoguard.pl]
Sent: Sunday, September 16, 2007 22:51
To: Shawn Rutledge; List for OpenMoko community discussion
Subject: Re: Short guide how to run gllin with chroot
Shawn Rutledge pisze:
Thanks, it's a convenient package.
But I'm getting an error from gllin:
test_cmd_receive_count = 22
gllin: early exit(3) in halInit()/674
gllin: -periodic 1
gllin: ../../../src/hal_linux_tt.c:1043: glcb_ExceptionAssert:
Assertion `0' failed.
I've updated my article. What happens with gllin I can't excuse but
gllin is still working. Just invoke
tail -f /home/root/gps.txt
and you'll see new data incoming. This is the proof that gllin still
works. If you don't see new data there's a problem. First of all update
you Openmoko to latest release (especially to 2007.2 if you still have
2007.1). Check if it helps.
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