diff options
| author | Gary E. Miller <gem@rellim.com> | 2015-03-20 05:06:15 +0000 |
|---|---|---|
| committer | Gary E. Miller <gem@rellim.com> | 2015-03-20 05:06:15 +0000 |
| commit | c91de3f456d3ae90ea51b15001182390f1ee3e73 (patch) | |
| tree | 4d21f5ec7da643a5998073f824cb89edfd76bbe4 /INSTALL | |
| parent | cbe8e4890dda99e724806e4da447dbc362a39f42 (diff) | |
| download | gpsd-c91de3f456d3ae90ea51b15001182390f1ee3e73.tar.gz | |
Add warning to RasPi pps-gpio users about missing edge detection.
Diffstat (limited to 'INSTALL')
| -rw-r--r-- | INSTALL | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -260,6 +260,10 @@ to the bottom of /boot/config.txt: dtoverlay=pps-gpio,gpiopin=4 Reboot and proceed as for any other operating system to use gpsd. +Warning, the pps_gpio driver in all linux kernels up to the current +3.19 only report one edge. Be sure to validate that your PPS signal +is not offset by the pulse width. + Detailed instructions are available from their web site: https://learn.adafruit.com/adafruit-ultimate-gps-hat-for-raspberry-pi/ |