Hi, I have some problem with the PPS signal of the GTPA013. I power on the device and I put in the PPS output Oscilloscope tip but I can see nothing. I expected to see a square wave o pulse witdh with 50ms of duration.
http://www.adafruit.com/products/746#Downloads
PPS signal measure, GPS GTPA013
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: PPS signal measure, GPS GTPA013
I believe the PPS must be enabled in software. It's not on by default.
-
- Posts: 12
- Joined: Thu Jan 30, 2014 5:05 am
Re: PPS signal measure, GPS GTPA013
Could you confirm that v3 Breakout with GTPA013 needs specific software command to enable PPS output!???
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: PPS signal measure, GPS GTPA013
Upon further review, the decision in my previous post is reversed. Sorry about that...
The 1PPS is normally on. No command to enable it is required. In fact, there is no PPS-related command at all. You can't turn it off, either.
The 1PPS is normally on. No command to enable it is required. In fact, there is no PPS-related command at all. You can't turn it off, either.
-
- Posts: 12
- Joined: Thu Jan 30, 2014 5:05 am
Re: PPS signal measure, GPS GTPA013
Ok, no problem, thank you for clearing!
Please be positive and constructive with your questions and comments.