1 of 3

PX4 Software

This section will track the changes over time of the PX4 software support for MR-VMU-RT1176

Note instructions for burning fuses and programming the bootloader are also in this gitbook. a BLANK chip or privately manufactured board will need this done before loading flight control software. Current boards as of 03/05/2024 already have the bootloader and fuses programmed

QGC

You should be able to flash PX4 via QGC. This long term is the preferred method when it works

Flashing "main" works (03/05/2025)
Flashing "beta" currently fails. (03/05/2025)

PX4 Git Status 03/05/2024

Backport of PX4 1.14 Stable is in validation now. This was a backport from main. There are a couple of open issues still
PX4 1.15 is in pre-release, VMU-RT1176 is included. This is a forward port of main, it has the most tested time on it.

Last build of PX4 Main

This link it to the last / latest version of PX4 Main is here. This is the working version.

http://ci.px4.io/job/PX4_misc/job/Firmware-compile/job/main/lastSuccessfulBuild/artifact/build/px4_fmu-v6xrt_default/

Temporary Software images VMU-RT117x

DRAFT DRAFT DRAFT

THESE IMAGES ARE JUST TEMPORARY AND ONLY FOR INITIAL DEVELOPMENT AND BOARD BRINGUP.

They will change often!!!! NOTE - this page may now be depricated as PX4 is upstream to main while using the Holybro baseboard. See this page

Interim instructions - during board bringup and development 7/2022

Temporary image location (NXP INTERNAL ONLY)

Link to internal NXP Sharepoint for development images (TEMPORARY ONLY) Note external parties will NOT be able to access this link.

https://nxp1.sharepoint.com/:f:/r/sites/HoverGamesProgram/Shared%20Documents/RDDRONE-FMURT5/FMURT7_FW?csf=1&web=1&e=E6G3zE

Temporaray image location (Externally shared)

These images are externally shared for specific developers. They are incomplete. They will be updated occasionally when requested by external parties and may not match the latest code. DO NOT RELY on this code in any way. https://github.com/NXPHoverGames/NXP-FMUMRT/tree/main/MR-VMU-RT1176/firmware-temp

Pixhawk 6X-RT (FMURT7) - IMPORTANT change 10/26/2023

Update 10/26/2023 Dear Pixhawk 6X-RT testers (all on Bcc),

This change notice is due to the change of the PX4 build target name of 6X-RT to its final name px4_fmu-v6xrt

The PX4 development branch has been changed to pr-px4_fmu-v6rt. Please checkout this branch and use for building the PX4 FW from now on.

Steps to update

Within your PX4-Autopilot git directory do the following

git checkout pr-px4_fmu-v6rt
git pull –recurse-submodules
Connect the Pixhawk 6X-RT FMU via USB to your PC
(This is assuming you have PX4 bootloader already flashed – as it was done for all handed out devices on PX4 dev summit)
Do make px4_fmu-v6rt_bootloader upload
At the end of the build process the bootloader will be uploaded via USB
Do make px4_fmu-v6rt_default upload
At the end of build process PX4 FW will be uploaded via USB

IMPORTANT - There is hard fault logging enabled at the moment in this branch. If you are flight testing the FMU please switch that off with “CONFIG_DEBUG_ASSERTIONS=n” within “boards/nxp/fmurt1170-v1/nuttx-config/nsh/defconfig” before building the code (before step 4)!!

PX4 Autopilot PR reporting

All important information / issues will be reported on the related PR - Initial support for px4_fmu-v6xrt an i.MXRT1170 based FMUM by davids5 · Pull Request #22263 · PX4/PX4-Autopilot · GitHub

We kindly ask you to report any issues found yourself on PX4 git with an issue report! Please tag pr 22263 in this case

Flight log reporting

With any flight testing please always upload your logs to Flight Review (px4.io)

enable “Allow this log file to be used for statistical analysis”
upload the ogfile to logs.px4.io
upload the LINK to the logfile to PR 22263 - Initial support for px4_fmu-v6xrt an i.MXRT1170 based FMUM by davids5 · Pull Request #22263 · PX4/PX4-Autopilot · GitHub

Thank you!