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| author | Gary E. Miller <gem@rellim.com> | 2015-03-18 13:03:32 -0700 |
|---|---|---|
| committer | Gary E. Miller <gem@rellim.com> | 2015-03-18 13:03:32 -0700 |
| commit | bceda52b248d2b2b7d9275aa3188b921ee16b8cb (patch) | |
| tree | 52dbbf89752051a4ef095eeb34db55fb5dec7ed2 /INSTALL | |
| parent | b2a786f550405a3316acd8ca13054343c83e4274 (diff) | |
| download | gpsd-bceda52b248d2b2b7d9275aa3188b921ee16b8cb.tar.gz | |
Tweak RasPi INSTALL for Adafruit Ultimate GPS HAT.
The HAT now works fine. gpsd still needs to understand
a naked /dev/pps0
Diffstat (limited to 'INSTALL')
| -rw-r--r-- | INSTALL | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -249,6 +249,17 @@ this GPS you also get a good 1PPS signal. This works as any other GPS with gpsd, but there are two things to note. The GPS takes over the serial console: /dev/ttyAMA0. The PPS signal will be on GPIO Pin #4. +Only two specific changes need to be made to make the HAT work. First +in the file /boot/cmdline.txt, remove this part "console=ttyAMA0,115200 +kgdboc=ttyAMA0,115200)". That free the serial port from console use so +the GPS can use it. + +Second you need to tell the boot process to load the pps_gpio module +and attach /dev/pps0 to GPIO ping 4. Do that by adding this line +to the bottom of /boot/config.txt: dtoverlay=pps-gpio,gpiopin=4 + +Reboot and proceed as for any other operating system to use gpsd. + Detailed instructions are available from their web site: https://learn.adafruit.com/adafruit-ultimate-gps-hat-for-raspberry-pi/ |