Add PPS gpio support. In ~/nvidia/nvidia_sdk/JetPack_4.3_Linux_P3448/Linux_for_Tegra/sources/hardware/nvidia/soc/t210/kernel-dts/tegra210-soc edit tegra210-soc-base.dtsi and add the following lines
because there is no folder “sources” in my Linux_for_Tegra folder.
Help me please to use PPS signal with ntp and gpsd.
Depending on where your kernel source is from you might not have the out of tree content. When unpacking from the NVIDIA-supplied source code it creates this:
…where the “kernel-4.9” is the actual kernel source. The other content is sometimes accessed if an NVIDIA feature is enabled (the feature uses files which use a relative path into those other subdirectories).
Which L4T release are you using? One of either “head -n 1 /etc/nv_tegra_release” or "dpkg -l | grep 'nvidia-l4t-core' will tell you which release. Then go to that release in this list of releases (you might need to go there, log in, and go there again): https://developer.nvidia.com/linux-tegra
Within this will be " L4T Driver Package (BSP) Sources". When unpacked you will find a sources package for the kernel, and then you’d unpack that package which was in the set of packages. This has the directory tree structure listed above with “sources/” as the first subdirectory.
thank you
now, ppstool show me timestamps of pps signal.
could you please tell me how configure gpsmon to attach pps? right now it is blank.
and how can i configure ntp?
I have a question that I used pps1 and ttyTHS1 from Ublox but I could not show them together in the gpsmon or cgps. Do you know the problem and I used to command you provided:sudo gpsd -N -D3 -F /run/gpsd.sock /dev/ttyTHS0 /dev/pps0 . I got the error of gpsd.