NMEA UART and Sync_in pulse not getting locked: 0

Tanish

I'm new to ouster LiDAR concepts. I apologize if my questions in already answered.

Currently, I am using Reach M2 as GPS and syncing along with Ouster OS1 - 32 for time-stamping. I am encountering problem with NMEA and SYNC_PULSE_IN. I am following guide mentioned in your forum: https://forum.ouster.at/d/74-how-to-synchronize-gps-with-ouster-sensor and also used your software guide.

But this is not working out for me. I followed all steps mentioned above in that link but still sync_pulse as well as NMEA are not getting locked. Please help me with this.

I am attaching screen-shots on my drive: [https://drive.google.com/drive/folders/1stvq2EkYl1NSfwXQNzGGjACYcU9P0EQt?usp=sharing]

@Mohit

Thanks & Regards,
Tanish

SlavaPavlov

Dear @Tanish,

The Ouster sensors only support NMEA GPRMC UART messages. The Reach M2 outputs these messages with GN prefix only. Ouster is considering adding support for multiple message types in the future, and this would come with a firmware update.
You should still be able to see a last_read_message so there is something else misaligned between the Reach M2 and the ouster sensor. Careful attention must be paid to aligning the configuration parameters of the GPS to the Ouster sensor. This knowledge base article provides a step-by-step process as well as troubleshooting tips: https://forum.ouster.at/d/74-how-to-synchronize-gps-with-ouster-sensor

I hope this helps and I am looking forward to your reply!

Best regards,
Slava