Gerald

Further thest with NXD20 testdrone Holybro S500 frame in Octo-X configuration with Pixhawk6X-RT (NXP baseboard release batch) and PX4 build based on https://github.com/PX4/PX4-Autopilot/commit/0928731839608768fcfa1c5e967da7c0feef13e2 From https://github.com/PX4/PX4-Autopilot/pull/23110 . Pixhawk4 GPS on GPS1,...

@davids5 @PetervdPerk-NXP another finding is that several attempts are needed to get actuator signal changed to Dshot600.

I agreed with @PetervdPerk-NXP on the following steps on the NXD20 testdrone Holybro S500 frame in Octo-X configuration: - do an mtd erase - reboot - do param reset_all -...

nsh: sysinit: fopen failed: No such file or directory NuttShell (NSH) NuttX-11.0.0 nsh> mtd erase Erasing /fs/mtd_params Erased 4096 bytes Erasing /fs/mtd_waypoints Erased 4096 bytes nsh> reboot > All settings...

> Actuators - AUX1 set to DShot600  > reboot > continued with the same process for AUX2 - AUX8 > after last reboot..  > setting AUX1 - AUX8...

 Will give it a try with DShot only first and afterwards enable CAN bus.

Result of first indoor test with DShot600 only Motors did not spin when arming - https://logs.px4.io/plot_app?log=427cd051-cc32-45df-a528-dc0f8cf572a5 Motors started - https://logs.px4.io/plot_app?log=3e145339-9409-4789-ab45-4e3c4377857a 6min hovering - https://logs.px4.io/plot_app?log=7c418c77-2b4f-49f3-a0d6-f7ccadb74dd1 Short hovering - https://logs.px4.io/plot_app?log=810e51a2-4be0-4a63-9e74-5098b69b29b3 Again i...

> Enabling CANbus, besides DShot600 (ESC's do fasilover if CAN signal is lost)  > reboot > connecting battery, connecting via USB > setting Actuators: hardfault occured at that stage...

> deleted fault log, reconnected via USB, not Battery connected, continuing with CAN motor assignment  > reboot > connecting via USB, afterwards connecting battery > motortest successful  >...

> Successful testfligt until battery empty indoors. ESC's controlled via droneCAN with DShot failover enabled https://logs.px4.io/plot_app?log=373c4ae0-4a46-48e8-a649-d32d77c46cdb