Swapping TX6 and RX1 Pins on FLYWOOF745 in ArduPilot Firmware

hi6otb · January 22, 2024, 4:34am

Hello ArduPilot Community,

I am currently working with the FLYWOOF745 board and I need some assistance in customizing the ArduPilot firmware for a specific application. My objective is to swap the positions of the TX6 and RX1 pins. I have some understanding of modifying the hwdef.dat file, but I want to ensure that I make the changes correctly and avoid any potential issues.

hwdef.dat

github.com

ArduPilot/ardupilot/blob/master/libraries/AP_HAL_ChibiOS/hwdef/FlywooF745/hwdef.dat

# hw definition file for processing by chibios_pins.py
# for FLYWOO Goku GN F745.
# thanks to betaflight for pin information

# MCU class and specific type
MCU STM32F7xx STM32F745xx

# board ID for firmware load
APJ_BOARD_ID 1027

# crystal frequency, setup to use external oscillator
OSCILLATOR_HZ 8000000

FLASH_SIZE_KB 1024

# bootloader takes first sector
FLASH_RESERVE_START_KB 96

# only one I2C bus
I2C_ORDER I2C1

This file has been truncated. show original

pinout pic

Thank you in advance for your help and advice!

andyp1per · January 22, 2024, 10:36am

You can’t. The pins on the FMU are only connected in silicon that way round.