20 Dec
2013
20 Dec
'13
9:59 a.m.
Hello mesh folks,
I took some donated Sparky boards from Noisebridge with the intention to
use them as wireless sensor nodes (environmental monitoring, etc) but
while I can get OpenWRT installed I run into problems with the hardware
watchdog rebooting the device every 5 minutes. It looks like OpenWRT
includes support for the ar2315 watchdog but something isn't working.
Have you all found a solution or workaround for this?
Thanks, dana
20 Dec
20 Dec
10:05 a.m.
Hi,
I've asked someone to send me one. I have the datasheets for the
AR23xx stuff but I don't have any working hardware so I can't help
diagnose what's going on.
If I can get one of each of the CPU types then I can try to figure out
what's going on. I'll also see if there's an external watchdog circuit
somewhere.
Thanks,
-a
On 20 December 2013 09:59, Dana <dana-lists(a)sonic.net> wrote:
3:51 p.m.
sudo mesh has been working on this quite a bit, and potentially found some
work arounds, it would be great if there's any new info to add here
https://noisebridge.net/wiki/Sparky#Watchdog_problems.21
On Fri, Dec 20, 2013 at 10:05 AM, Adrian Chadd <adrian(a)freebsd.org> wrote:
--
ThanX,
;+)
https://www.noisebridge.net/wiki/Fort
21 Dec
21 Dec
11:04 a.m.
Hm, I'm reading the AR2317 datasheet and this is .. not what I expected.
The later chips have a way fo saying "watchdog triggers NMI",
"watchdog triggers interrupt", "watchdog triggers reset", etc. This
doesn't seem to be covered in this datasheet.
I'd suggest putting something in the platform startup code that does this:
* change bit 2 in RST_WDOG_CTL to 0 so it doesn't signal an AHB error
upon the watchdog triggering
* look at where in the platform code it sets up RST_MIMR (the misc
interrupt mask) and see where the watchdog interrupt is going. It may
end up being mapped to something that causes a CPU reset. Maybe you
need to mask it explicitly? I'm not sure.
I'll keep digging. It'll be easier once I receive the units from Marc/Dana. :-)
-a
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days inactive
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3 comments
3 participants
participants (3)
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Adrian Chadd -
Dana -
J.C.