topic updating time to GPS time on IMXQXP in i.MX Processors

updating time to GPS time on IMXQXP

sistlajr6 — Thu, 23 Feb 2023 19:49:40 GMT

Hi ,

I am running demo linux images from NXP on the iMX8QXP. I am able to connect a GPS receiver and get the nmea data by accessing /dev/ttyACM3 ( since its a usb based GPS reciever) . Now i am trying to get the date and time updated to the GPS time. How can I achieve this on the imx demo image.

Regards,
Sistla.

Re: updating time to GPS time on IMXQXP

Sanket_Parekh — Tue, 28 Feb 2023 13:27:15 GMT

Hi @sistlajr6

I hope you are doing well.

Kindly mention the part number of the GPS device you are using.

Thanks & Regards

Sanket Parekh

Re: updating time to GPS time on IMXQXP

sistlajr6 — Wed, 01 Mar 2023 16:46:11 GMT

Hi Sanket,

I am trying to use a USB based GPS module, on Ubuntu i am able to the opensource libraries to read the time and data , lat and long and all the data.

On iMX i am able to use /dev/ttyACM* to read the NMEA data. But i am looking at the yacto build if there is any publicly available libraries that i can use to nmea data from this port just like gpsmon or some

Re: updating time to GPS time on IMXQXP

Sanket_Parekh — Fri, 03 Mar 2023 09:48:48 GMT

Hi @sistlajr6

I hope you are doing well

To read NMEA data one can use 'gpsd' related packages in meta-openembedded layer.

One can add the below packages in conf/local.conf and check the recipe build using bitbake.

" gpsd gps-utils libgps gpsd-gpsctl"

bitbake gpsd

Thanks & Regards

Sanket Parekh