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Re: [gpsd-users] NTP1 keeps going away.
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-users] NTP1 keeps going away. |
Date: |
Thu, 9 Nov 2017 12:48:19 -0800 |
Yo stinga!
On Thu, 9 Nov 2017 20:40:28 +0000
stinga <address@hidden> wrote:
> All good ideas, but nope. gps is running off 3.3 votlts and I have
> tested the GPIO pin.
Hmm, so you are on a RasPi. What header pin are you on? What does
your /boot/config.txt look like? Here is mine:
~ # cat /boot/config.txt
# Disable Bluetooth so serial-tty speed is no longer tied to CPU speed
dtoverlay=pi3-miniuart-bt
# Uptraonics on gpio 18
dtoverlay=pps-gpio,gpiopin=18
kernel=zImage-4.9.34.img
# don't need the gpu mem
gpu_mem=16
no_hz=off
Do you have pps-gpio compiled into your kernel? Or is it a kernel module
you know is loaded?
> I need to put the gps PPS pin on a scope and see what it is doing.
And other things to try as well. Maybe try a diff gpio pin?
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
address@hidden 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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- Re: [gpsd-users] NTP1 keeps going away., (continued)
- Re: [gpsd-users] NTP1 keeps going away., Alexander Carver, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., stinga, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., David Willmore, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., Gary E. Miller, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., David Willmore, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., stinga, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., Gary E. Miller, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., stinga, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., Gary E. Miller, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., stinga, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away.,
Gary E. Miller <=
- Re: [gpsd-users] NTP1 keeps going away., stinga, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., Gary E. Miller, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., stinga, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., Gary E. Miller, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., stinga, 2017/11/09
- Re: [gpsd-users] NTP1 keeps going away., Gary E. Miller, 2017/11/09