Add new target: PAURCF405V2#11497
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sensei-hacker merged 2 commits intoiNavFlight:maintenance-9.xfrom Apr 13, 2026
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STM32F405RGT6-based flight controller by PauRC. Hardware features: - IMU: ICM42605/ICM42688P or BMI270 (board variant, same CS pin PC14) - OSD: MAX7456 on SPI1 - Blackbox: 16MB SPI flash on SPI2 - Baro: SPL06/DPS310/BMP280/MS5611 (I2C1) - 6x UART + 1x SoftSerial (PA2, shared with UART2 TX) - 11x PWM outputs with DShot/DMAR support - LED strip, PINIO (2 channels), airspeed ADC - 30.5x30.5mm mounting pattern Closes iNavFlight#11089
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Review Summary by QodoAdd new target: PAURCF405V2 flight controller WalkthroughsDescription• Adds INAV firmware support for PauRC F405 V2 flight controller • Configures STM32F405RGT6 MCU with dual IMU support (ICM42605/ICM42688P or BMI270) • Defines 11 PWM outputs with DShot/DMAR, 6 UARTs plus SoftSerial, and comprehensive sensor support • Sets up timer/DMA assignments, SPI peripherals (OSD, Blackbox), I2C sensors, and PINIO configuration Diagramflowchart LR
MCU["STM32F405RGT6 MCU"]
IMU["Dual IMU Support<br/>ICM42605/ICM42688P<br/>or BMI270"]
OSD["MAX7456 OSD<br/>on SPI1"]
FLASH["16MB SPI Flash<br/>Blackbox on SPI2"]
BARO["Barometer<br/>SPL06/DPS310<br/>BMP280/MS5611<br/>on I2C1"]
UART["6x UART<br/>+ SoftSerial"]
PWM["11x PWM Outputs<br/>DShot/DMAR Support"]
MCU --> IMU
MCU --> OSD
MCU --> FLASH
MCU --> BARO
MCU --> UART
MCU --> PWM
File Changes1. src/main/target/PAURCF405V2/CMakeLists.txt
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Code Review by Qodo🐞 Bugs (0) 📘 Rule violations (0) 📎 Requirement gaps (0)
Great, no issues found!Qodo reviewed your code and found no material issues that require reviewⓘ The new review experience is currently in Beta. Learn more |
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Test firmware build ready — commit Download firmware for PR #11497 1 targets built. Find your board's
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Summary
Adds INAV firmware support for the PauRC F405 V2 flight controller.
Hardware
Changes
src/main/target/PAURCF405V2/CMakeLists.txt— STM32F405XG build targetsrc/main/target/PAURCF405V2/target.h— pin mapping and hardware configurationsrc/main/target/PAURCF405V2/target.c— timer/DMA assignments (all streams verified conflict-free)src/main/target/PAURCF405V2/config.c— default PINIO box configurationTesting
maintenance-9.xNotes
WHO_AM_Iregister at runtime;USE_IMU_ICM42605covers both variantsCloses #11089