I'm trying to setup a Pi with a GPS hat.
The Microserver HOWTO says:
{--config} Edit /boot/config.txt and add these lines to the end of the
file, replacing 4 with the logical pin number for your HAT if it's not an
Adafruit:
# Get 1PPS from HAT pin
dtoverlay=pps-gpio,gpiopin=4
The first problem is that config.txt and friends have move from /boot/ to
/boot/firmware/, but I can dance around that.
The real problem is that the new/current config.txt says:
# Do not modify this file!
#
# It is automatically generated upon install or update of either the
# firmware or the Linux kernel.
I haven't figured out where to put that line.
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My notes say to add "pps-gpio" to /etc/modules
The bits I got from Debian don't have a pps-gpio module.
$ find /lib/modules/ -name "*pps*"
/lib/modules/6.1.0-13-rpi/kernel/drivers/pps
/lib/modules/6.1.0-13-rpi/kernel/drivers/pps/clients/pps_parport.ko
/lib/modules/6.1.0-13-rpi/kernel/drivers/pps/clients/pps-ldisc.ko
/lib/modules/6.1.0-21-rpi/kernel/drivers/pps
/lib/modules/6.1.0-21-rpi/kernel/drivers/pps/clients/pps_parport.ko
/lib/modules/6.1.0-21-rpi/kernel/drivers/pps/clients/pps-ldisc.ko
$
Anybody setup a GPS HAT on a Pi 1 recently?
-------
The link behind "this photograph" is 404
Find "north" on the HAT. It\u2019s the edge that the GPS module is closest
to, and has a rectangular notch in it (a cutout for a ribbon cable). The
GPIO header will be 90 degrees clockwise. If this isn't clear enough, see
this photograph.
I haven't checked the others.
--
These are my opinions. I hate spam.
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