AnsweredAssumed Answered

Driving PPS from GPIO

Question asked by Jay Nadeau on Dec 11, 2015
Latest reply on Dec 22, 2015 by Jay Nadeau

Hi everyone,

 

I am looking for some help here, as I am currently stuck.

 

I have an i.MX6Q with a Linux kernel built using bitbake.

I have enabled PPS and GPIO support using the Linux menuconfig method.

I also have a uBlox GPS receiver powered and connected through GPIO pins.

I can see that there are PPS devices in my device tree and I can also manipulate and export GPIOs using sysfs. Also, I have installed ktimer to ensure that PPS is working and it looks fine here.

 

My question is, how can I tell LinuxPPS that I want to use an arbitrary GPIO as a PPS source coming from my GPS receiver?

 

Any help here would be greatly appreciated.

 

Thank you,

Jay

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