Adafruit Pi GPS HAT -- serial port stuck
Gary E. Miller
gem at rellim.com
Sun Jul 10 21:16:10 UTC 2022
Yo Hal!
On Thu, 16 Jun 2022 19:33:07 -0700
Hal Murray via devel <devel at ntpsec.org> wrote:
> Has anybody seen the serial port get stuck?
Not me, but I have heard reports. Usually a voltage mismatch.
> It's software/kernel. I can see the bits with a scope.
You can't just cat/minicom the serial port?
And stty shows the proper speed/framing?
> It works as expected until it runs out of satellites. Then,
> sometimes it doesn't recover.
Why would it run out of satellites? Forget to charge them up?
> Restarting ntpd doesn't fix it. Rebooting does.
Wierd.
RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
gem at rellim.com Tel:+1 541 382 8588
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"If you can't measure it, you can't improve it." - Lord Kelvin
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