Hello,
We have what appears to be an intermittent problem with one of our BlueROV where the flight controller board starts to cyclically reboot. Running latest stable code, ardupilot 4.6.5, blueOS 1.4.2, the problem exhibits as loss of functional control during operations with the craft remaining active under IMU control.
What next steps should be taken to isolate a root cause?
7/11/2025 12:38:33 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:38:29 pm : Frame: VECTORED_6DOF
7/11/2025 12:38:29 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:38:29 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:38:29 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:38:25 pm : Frame: VECTORED_6DOF
7/11/2025 12:38:25 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:38:25 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:38:25 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:38:21 pm : Frame: VECTORED_6DOF
7/11/2025 12:38:21 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:38:21 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:38:21 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:38:17 pm : Frame: VECTORED_6DOF
7/11/2025 12:38:17 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:38:17 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:38:17 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:38:13 pm : Frame: VECTORED_6DOF
7/11/2025 12:38:13 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:38:13 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:38:13 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:38:10 pm : Frame: VECTORED_6DOF
7/11/2025 12:38:10 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:38:10 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:38:10 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:38:07 pm : Frame: VECTORED_6DOF
7/11/2025 12:38:07 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:38:07 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:38:07 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:38:06 pm : MYGCS: 255, heartbeat lost
7/11/2025 12:38:02 pm : Frame: VECTORED_6DOF
7/11/2025 12:38:02 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:38:02 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:38:02 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:58 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:58 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:58 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:58 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:55 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:55 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:55 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:55 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:51 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:51 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:51 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:51 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:48 pm : DVL is too hot (48.86 C). Please cool it down.
7/11/2025 12:37:47 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:47 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:47 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:47 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:44 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:44 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:44 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:44 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:41 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:41 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:41 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:40 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:37 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:37 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:37 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:37 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:32 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:32 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:32 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:32 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:29 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:29 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:29 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:29 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:26 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:26 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:26 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:26 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:22 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:22 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:22 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:22 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:18 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:18 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:18 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:18 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:15 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:15 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:15 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:14 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:11 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:11 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:11 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:11 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:10 pm : MYGCS: 255, heartbeat lost
7/11/2025 12:37:07 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:07 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:07 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:07 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:37:03 pm : Frame: VECTORED_6DOF
7/11/2025 12:37:03 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:37:03 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:37:03 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:59 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:59 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:59 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:59 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:56 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:56 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:56 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:56 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:52 pm : DVL is too hot (48.69 C). Please cool it down.
7/11/2025 12:36:52 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:52 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:52 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:52 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:51 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:51 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:51 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:51 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:31 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:31 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:31 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:31 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:27 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:27 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:27 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:27 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:23 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:23 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:23 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:23 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:22 pm : MYGCS: 255, heartbeat lost
7/11/2025 12:36:19 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:19 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:19 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:19 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:16 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:16 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:16 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:16 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:12 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:12 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:12 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:12 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:08 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:08 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:08 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:08 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:04 pm : DVL is too hot (48.53 C). Please cool it down.
7/11/2025 12:36:04 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:04 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:04 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:04 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:36:00 pm : Frame: VECTORED_6DOF
7/11/2025 12:36:00 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:36:00 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:36:00 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:56 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:56 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:56 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:56 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:52 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:52 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:52 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:52 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:48 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:48 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:48 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:48 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:44 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:44 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:44 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:44 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:40 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:40 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:40 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:40 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:36 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:36 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:36 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:36 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:33 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:33 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:33 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:33 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:29 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:29 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:29 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:29 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:26 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:26 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:26 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:26 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:25 pm : MYGCS: 255, heartbeat lost
7/11/2025 12:35:22 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:22 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:22 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:22 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:18 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:18 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:18 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:18 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:15 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:15 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:15 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:15 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:11 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:11 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:11 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:11 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:07 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:07 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:07 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:07 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:07 pm : DVL is too hot (48.49 C). Please cool it down.
7/11/2025 12:35:04 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:04 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:04 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:04 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:35:00 pm : Frame: VECTORED_6DOF
7/11/2025 12:35:00 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:35:00 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:35:00 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:34:56 pm : Frame: VECTORED_6DOF
7/11/2025 12:34:56 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:34:56 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:34:56 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:34:52 pm : Frame: VECTORED_6DOF
7/11/2025 12:34:52 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:34:52 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:34:52 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:34:48 pm : Frame: VECTORED_6DOF
7/11/2025 12:34:48 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:34:48 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:34:48 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:34:36 pm : MYGCS: 255, heartbeat lost
7/11/2025 12:34:24 pm : DVL is too hot (48.28 C). Please cool it down.
7/11/2025 12:34:15 pm : Lost manual control
7/11/2025 12:34:15 pm : u-blox 1 HW: 00190000 SW: EXT CORE 4.04 (7f89f7)
7/11/2025 12:33:58 pm : GPS 1: detected as u-blox at 230400 baud
7/11/2025 12:33:49 pm : DVL is too hot (48.18 C). Please cool it down.
7/11/2025 12:33:42 pm : GPS 1: detected as u-blox at 230400 baud
7/11/2025 12:33:14 pm : Frame: VECTORED_6DOF
7/11/2025 12:33:14 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:33:14 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:33:14 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:33:08 pm : Frame: VECTORED_6DOF
7/11/2025 12:33:08 pm : IMU0: fast sampling enabled 8.0kHz/1.0kHz
7/11/2025 12:33:08 pm : 159f341bb7f94b3e95496f20f3f15642
7/11/2025 12:33:08 pm : ArduSub V4.5.6 (1a196cab)
7/11/2025 12:33:08 pm : GPS 1: detected as u-blox at 230400 baud
7/11/2025 12:33:04 pm : EKF3 IMU0 MAG0 initial yaw alignment complete
7/11/2025 12:33:04 pm : EKF3 IMU0 tilt alignment complete
7/11/2025 12:33:02 pm : AHRS: EKF3 active
7/11/2025 12:33:02 pm : EKF3 IMU0 initialised
7/11/2025 12:33:00 pm : Lost manual control
7/11/2025 12:32:59 pm : AHRS: DCM active
7/11/2025 12:32:59 pm : ArduPilot Ready
7/11/2025 12:32:59 pm : Barometer 2 calibration complete
7/11/2025 12:32:59 pm : Barometer 1 calibration complete