How to reserve board ID (APJ_BOARD_ID) for port to new hardware

qczek · March 9, 2021, 5:09pm

Hi,
I’m going to port ardupilot to Jhemcu GHF420AIO F4 Flight Controller, and I wonder how to reserve id which is used in hwdef.dat/hwdef-bl.dat to make it unique, and avoid problem with marge request.
Thank you in advance
Kris

amilcarlucas · March 9, 2021, 5:14pm

You can do a pull-request with just that change.

Eosbandi · March 9, 2021, 11:54pm

No offense, but could you tell me what is the reasoning behind porting AC to a board which has an outdated processor, a single crappy gyro/accel sensor and nothing else that helps with stable and safe flight ?

(besides practicing porting)

tridge · March 10, 2021, 12:57am

just post a pull request against this file:

github.com

ardupilot/ardupilot/blob/master/Tools/AP_Bootloader/board_types.txt

# this file lists all board types for boards that use the bootloader
# protocol implemented in this bootloader.

TARGET_HW_PX4_FMU_V1                    5
TARGET_HW_PX4_FMU_V2                    9
TARGET_HW_PX4_FMU_V3                    9 # same as FMU_V2
TARGET_HW_PX4_FMU_V4                   11
TARGET_HW_PX4_FMU_V4_PRO               13
TARGET_HW_UVIFY_CORE		           20
TARGET_HW_PX4_FMU_V5                   50
TARGET_HW_PX4_FMU_V5X                  51
TARGET_HW_PX4_FMU_V6                   52
TARGET_HW_PX4_FMU_V6X                  53
TARGET_HW_MINDPX_V2                    88
TARGET_HW_PX4_FLOW_V1                   6
TARGET_HW_PX4_DISCOVERY_V1             99
TARGET_HW_PX4_PIO_V1                   10
TARGET_HW_PX4_PIO_V2                   10 # same as PIO_V1
TARGET_HW_PX4_PIO_V3                   13
TARGET_HW_PX4_AEROCORE_V1              98

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qczek · March 10, 2021, 10:18am

Hi,
The reason is to make possible build very lightweight UAVS like this one also utilizing “low quality”, “outdated” MCU

https://qczek.beyondrc.com/ldarc-450x-118-gram-fpv-plane/

The GHF420AIO board, has integrated ESC, having everything what is required to build under 250grams long range copter…

Hope it helps.
Have a nice day
Kris