DRAFT DRAFT DRAFT How to program the VMU using a JLINK (JLINK - loadfile or loadbin but start at address 0x30000000)

Interim instructions

Official instructions will eventually be on the PX4.io website and Cognipilot website. These are interim instructions for pre-production boards.

There are TWO variants of pre-production boards:

1) ALPHA boards: These are the FMUMRT1176 on an ALPHA carrier board. This board can be identified by having TWO debug connectors and a solid row of PWM like headers at one end.

2) BETA boards: These are the FMUMRT1176 on a BETA carrier board. This board is intended to become production. It can be identified by THREE CAN ports and the end with PWM ports shows 12PWM, a small gap, then AUX and RC IN 3 pin connectors.

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

Steps to update

Within your PX4-Autopilot git directory do the following

1. git checkout pr-px4_fmu-v6rt

2. git pull –recurse-submodules

3. Connect the Pixhawk 6X-RT FMU via USB to your PC

PX4 Autopilot PR reporting

All important information / issues will be reported on the related PR -

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

Flight log reporting

With any flight testing please always upload your logs to

1. enable “Allow this log file to be used for statistical analysis”

2. upload the ogfile to

3. upload the LINK to the logfile to PR 22263 -

Thank you!

DRAFT DRAFT DRAFT

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.

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.

If you will be using PX4 software with the MR-VMU-RT1176 board then you will need to first program the bootloader if not already installed.

The abbreviated instructions are as follows:

1. Connect the holybro pixhawk debug adapter, with SEGGER debug probe connected, to Pixhawk 6X-RT

2. Power the Pixhawk 6X-RT either via USB or POWERx connector.

3. Launch JlinkExe tool from Segger

If you wish to flash PX4 at this time, it can be done with the additional command:

• Type loadbin /path/to/firmware/px4_fmu-v6xrt_default.bin 0x30020000

To complete the process:

• type reset and go

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

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.

This is related to the pre-production units or units manufactured from a BLANK RT1176 chip.

Overview on Fuses