NRU-51V+ GPS PPS sync with Framesync

The Camera

It is recommended to use the GPS PPS framesync feature with the AC-AR0233 or AC-ISX031 series, instead of the AC-IMX390 series to avoid confusion. This is because the AC-AR0233 or AC-ISX031 has a flexible FPS configuration ranging from 16 FPS to 30 FPS. However, the AC-IMX390 is a fixed FPS camera with an internal clock.

Result

Pink: GPS PPS Input. Yellow: MCU Detection. Green: MCU Framesync

Commands to enable GPS PPS Sync

# Send command to onboard MCU to enable GPS PPS sync
# 

# COM: /dev/ttyTHS1
# Baud Rate: 115200
# Bits: 8E1

#+ppsfs    //MCU detect falling edge
#+ppsxx    //Detect PPS ON