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@YI-BOYANG YI-BOYANG commented Apr 10, 2025

Summary by CodeRabbit

  • New Features
    • Added support for the GEPRC TAKER F405 AIO flight controller.
    • Enables onboard gyro/accelerometer, barometer, OSD, and onboard flash for Blackbox logging.
    • Preconfigured motors, beeper (inverted), LEDs, UARTs, I2C, SPI, USB detect, and ADC-based voltage/current sensing with default scaling.
    • Sets default gyro orientation and system clock for stable operation.
    • Ready-to-use defaults for meter sources and Blackbox device to simplify setup.

TIMER_PIN_MAP( 1, PA8 , 1, 1) \
TIMER_PIN_MAP( 2, PA9 , 1, 1) \
TIMER_PIN_MAP( 3, PA10, 1, 1) \
TIMER_PIN_MAP( 4, PC8 , 2, 1)
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Missing timer, dma for LED_STRIP_PIN (PB1)

Comment on lines +40 to +43
#define MOTOR1_PIN PA8
#define MOTOR2_PIN PA9
#define MOTOR3_PIN PA10
#define MOTOR4_PIN PC8
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📥 Commits

Reviewing files that changed from the base of the PR and between 1372047 and 4065bad.

📒 Files selected for processing (1)
  • configs/GEPRC_TAKER_F405AIO/config.h (1 hunks)

Walkthrough

Adds a new Betaflight board configuration for GEPRC_TAKER_F405AIO defining MCU, board identifiers, sensor/peripheral enables, pin mappings (motors, UARTs, I2C, SPI, ADC, LEDs, beeper), SPI/I2C instances, timer map, defaults (meters/blackbox), system clock, and gyro alignment/orientation.

Changes

Cohort / File(s) Summary
Board identification & MCU
configs/GEPRC_TAKER_F405AIO/config.h
Declares FC target MCU STM32F405, BOARD_NAME, MANUFACTURER_ID, SYSTEM_HSE_MHZ=8, USB detect pin.
Sensors & features enablement
configs/GEPRC_TAKER_F405AIO/config.h
Enables ACC/GYRO (ICM42688P over SPI), BARO (DPS310 over I2C), FLASH (W25Q128FV), MAX7456 OSD; sets gyro alignment CW180_DEG.
Peripheral instances & CS/INT pins
configs/GEPRC_TAKER_F405AIO/config.h
Assigns GYRO SPI1, FLASH SPI3, MAX7456 SPI2; defines CS pins and gyro EXTI. Sets BARO_I2C_INSTANCE and MAG_I2C_INSTANCE to I2CDEV_1.
Pin mappings: motors, IO, buses
configs/GEPRC_TAKER_F405AIO/config.h
Maps motors (MOTOR1–4), beeper (inverted), LED strip, status LEDs, PPM, UART1–6 TX/RX, I2C1/2 SCL/SDA, SPI1–3 SCK/SDI/SDO, ADC VBAT/CURR; optional RSSI/PINIO commented.
Timer/ADC configuration
configs/GEPRC_TAKER_F405AIO/config.h
Provides TIMER_PIN_MAPPING via TIMER_PIN_MAP and sets ADC1_DMA_OPT=0.
Defaults: logging & meters
configs/GEPRC_TAKER_F405AIO/config.h
Sets DEFAULT_BLACKBOX_DEVICE to FLASH; voltage/current meter sources to ADC; current meter scale 179.

Sequence Diagram(s)

sequenceDiagram
  autonumber
  participant Boot as Firmware Boot
  participant CFG as Board Config (GEPRC_TAKER_F405AIO)
  participant HAL as HAL/Drivers
  participant Sensors as Sensors (Gyro/Acc, Baro)
  participant Periph as Peripherals (OSD, Flash)
  participant Meters as ADC Meters

  Boot->>CFG: Load board macros
  CFG->>HAL: Select MCU, clocks, timers, DMA
  CFG->>HAL: Bind pins (motors, UARTs, I2C/SPI, LEDs, beeper)
  CFG->>HAL: Set SPI/I2C instances and CS/INT pins
  HAL->>Sensors: Init ICM42688P on SPI1 (align CW180)
  HAL->>Sensors: Init DPS310 on I2C1
  HAL->>Periph: Init MAX7456 on SPI2
  HAL->>Periph: Init W25Q128FV on SPI3
  HAL->>Meters: Configure ADC for VBAT/CURR (scale=179)
  HAL-->>Boot: Init complete with configured devices
  note over Boot,HAL: Blackbox default device: FLASH
Loading

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

  • Add AXISFLYING ARGUS ECO F4 #780 — Adds another STM32F405 board config with similar sensors (ICM42688P, DPS310), OSD, flash, and comparable SPI/I2C and timer mappings.

Suggested reviewers

  • haslinghuis
  • nerdCopter
  • ot0tot

Poem

New board boots with a cheerful beep,
Pins all mapped, no secrets to keep.
SPI twirls, I2C hums light,
Flash logs dreams through maiden flight.
A rabbit taps its paws—delight!
GEPRC sings in neon night. 🐇✨

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Actionable comments posted: 0

♻️ Duplicate comments (2)
configs/GEPRC_TAKER_F405AIO/config.h (2)

62-63: Avoid PC14/PC15 for LEDs per BF design guidelines (confirm hardware).

PC14/PC15 are discouraged for LEDs. If the production PCB really wires LEDs here, keep as-is; otherwise, move to more suitable pins.


22-105: Leading space indentation across file.

Most lines start with a stray leading space; please normalize. Keeps diffs and style consistent.

🧹 Nitpick comments (2)
configs/GEPRC_TAKER_F405AIO/config.h (2)

29-36: Optional: consider dual-gyro driver enable if batches vary.

If some hardware runs a different IMU (e.g., BMI270/MPU6000) on the same socket, enable both gyro/acc drivers to allow runtime auto-detect.


106-106: Add newline at EOF.

Minor POSIX/style nit.

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📥 Commits

Reviewing files that changed from the base of the PR and between 467f87b and 1372047.

📒 Files selected for processing (1)
  • configs/GEPRC_TAKER_F405AIO/config.h (1 hunks)
🧰 Additional context used
🧠 Learnings (22)
📓 Common learnings
Learnt from: haslinghuis
PR: betaflight/config#835
File: configs/HDZERO_HALO_MPU6000/config.h:44-56
Timestamp: 2025-07-14T16:16:56.822Z
Learning: For Betaflight board configurations of boards already in production, pin assignments in config.h files reflect the actual hardware design and cannot be changed, even if they present potential conflicts with debug interfaces. The configuration must match the physical board layout, not ideal software design preferences.
Learnt from: ot0tot
PR: betaflight/config#0
File: :0-0
Timestamp: 2025-07-03T04:33:57.480Z
Learning: Always verify that the BOARD_NAME define in each config.h matches the directory name it resides in (e.g., configs/AXISFLYINGF7AIO/config.h must have #define BOARD_NAME AXISFLYINGF7AIO). This check is required for all Betaflight board configuration reviews.
Learnt from: ot0tot
PR: betaflight/config#872
File: configs/HGLRCH743/config.h:82-83
Timestamp: 2025-08-20T02:54:58.596Z
Learning: For Betaflight board configuration reviews, the definitive source for validating UART pin assignments is the serial_uart_{platform}.c file in the Betaflight codebase (e.g., serial_uart_stm32h7xx.c for STM32H7xx platforms), not generic MCU datasheets. These files contain the exact pin mappings that Betaflight supports for each UART peripheral.
Learnt from: haslinghuis
PR: betaflight/config#656
File: configs/IFLIGHT_F745_AIO/config.h:31-35
Timestamp: 2025-07-28T16:44:59.686Z
Learning: In Betaflight board configurations, when a board design uses the same physical gyro socket but different sensor variants across production batches (e.g., MPU6000 in older batches, ICM42688P in newer batches), the correct approach is to enable both sensor drivers (USE_GYRO_SPI_MPU6000 and USE_GYRO_SPI_ICM42688P) in the same configuration. This allows runtime auto-detection of which sensor is actually present without requiring separate board configurations for each hardware variant.
Learnt from: haslinghuis
PR: betaflight/config#822
File: configs/AXISFLYINGH7MINI/config.h:29-37
Timestamp: 2025-06-23T18:43:31.746Z
Learning: In Betaflight configuration files, feature enablement macros like USE_MAG are build options that can be controlled at compile time, while hardware instance definitions like MAG_I2C_INSTANCE are predefined in board configurations to assist with hardware mapping when those features are enabled at build time.
📚 Learning: 2025-07-14T16:16:56.822Z
Learnt from: haslinghuis
PR: betaflight/config#835
File: configs/HDZERO_HALO_MPU6000/config.h:44-56
Timestamp: 2025-07-14T16:16:56.822Z
Learning: For Betaflight board configurations of boards already in production, pin assignments in config.h files reflect the actual hardware design and cannot be changed, even if they present potential conflicts with debug interfaces. The configuration must match the physical board layout, not ideal software design preferences.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-07-03T04:33:57.480Z
Learnt from: ot0tot
PR: betaflight/config#0
File: :0-0
Timestamp: 2025-07-03T04:33:57.480Z
Learning: Always verify that the BOARD_NAME define in each config.h matches the directory name it resides in (e.g., configs/AXISFLYINGF7AIO/config.h must have #define BOARD_NAME AXISFLYINGF7AIO). This check is required for all Betaflight board configuration reviews.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-07-03T04:33:57.480Z
Learnt from: ot0tot
PR: betaflight/config#0
File: :0-0
Timestamp: 2025-07-03T04:33:57.480Z
Learning: Always verify that the `BOARD_NAME` define in config.h files exactly matches the directory name where the config file is located. For example, if the config file is in configs/AXISFLYINGF7AIO/config.h, then the BOARD_NAME should be defined as "AXISFLYINGF7AIO". This ensures proper board identification and configuration loading in Betaflight.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-06-23T18:43:31.746Z
Learnt from: haslinghuis
PR: betaflight/config#822
File: configs/AXISFLYINGH7MINI/config.h:29-37
Timestamp: 2025-06-23T18:43:31.746Z
Learning: In Betaflight configuration files, feature enablement macros like USE_MAG are build options that can be controlled at compile time, while hardware instance definitions like MAG_I2C_INSTANCE are predefined in board configurations to assist with hardware mapping when those features are enabled at build time.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-08-22T17:08:23.283Z
Learnt from: haslinghuis
PR: betaflight/config#879
File: configs/AIRBOTSUPERF4V2/config.h:42-45
Timestamp: 2025-08-22T17:08:23.283Z
Learning: In Betaflight board configurations, OSD feature flags like USE_OSD_SD (analog/MAX7456) and USE_OSD_HD (digital/MSP DisplayPort) are typically defined at build time by the build system, not in the individual board config.h files. Board configs can conditionally define OSD-related settings based on these build-time flags.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-07-03T15:17:30.040Z
Learnt from: haslinghuis
PR: betaflight/config#0
File: :0-0
Timestamp: 2025-07-03T15:17:30.040Z
Learning: In Betaflight configurations, when a target name suggests dual IMUs (like JHEF7DUAL) but specific hardware variants only have one gyro available, the preferred solution is to use DEFAULT_GYRO_TO_USE macro to specify which gyro to use by default rather than pruning gyro defines or creating redundant configurations. This approach maintains compatibility when the same target is used by multiple hardware variants from the same manufacturer.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-07-28T16:44:59.686Z
Learnt from: haslinghuis
PR: betaflight/config#656
File: configs/IFLIGHT_F745_AIO/config.h:31-35
Timestamp: 2025-07-28T16:44:59.686Z
Learning: In Betaflight board configurations, when a board design uses the same physical gyro socket but different sensor variants across production batches (e.g., MPU6000 in older batches, ICM42688P in newer batches), the correct approach is to enable both sensor drivers (USE_GYRO_SPI_MPU6000 and USE_GYRO_SPI_ICM42688P) in the same configuration. This allows runtime auto-detection of which sensor is actually present without requiring separate board configurations for each hardware variant.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-06-02T16:16:20.197Z
Learnt from: haslinghuis
PR: betaflight/config#0
File: :0-0
Timestamp: 2025-06-02T16:16:20.197Z
Learning: For Betaflight configurations, blackbox logging via SPI3 and LED_STRIP functionality can be mutually exclusive due to DMA stream conflicts on STM32F4 targets. This hardware limitation should be identified during timer configuration reviews.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-07-14T15:41:14.364Z
Learnt from: ot0tot
PR: betaflight/config#834
File: configs/RADIOLINKF405/config.h:79-88
Timestamp: 2025-07-14T15:41:14.364Z
Learning: In STM32F405 configurations, PB1 typically maps to TIM3_CH4 and PC9 typically maps to TIM8_CH4. These are different timers and do not share DMA resources, so there is no conflict when both pins are used simultaneously (e.g., PB1 for LED_STRIP and PC9 for MOTOR4).

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-08-10T14:08:56.662Z
Learnt from: blckmn
PR: betaflight/config#851
File: configs/HELLBENDER_0001/config.h:45-46
Timestamp: 2025-08-10T14:08:56.662Z
Learning: In Betaflight, USE_LED_STRIP is a cloud build option that enables/disables the LED strip feature at build time. Individual target config files (configs/*/config.h) only need to define LED_STRIP_PIN as a default pin assignment - they should not define USE_LED_STRIP themselves. The feature enablement is handled externally through the cloud build system, not through preprocessor directives in the config files.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-06-02T16:16:20.197Z
Learnt from: haslinghuis
PR: betaflight/config#0
File: :0-0
Timestamp: 2025-06-02T16:16:20.197Z
Learning: In STM32F405-based flight controller configurations, timer pin mappings must be carefully analyzed for DMA stream conflicts, especially between motor timers, LED strip timers, and SPI DMA assignments. Changes to TIMER_PIN_MAPPING should include verification that all required peripherals (motors, LED strip, blackbox SPI) can coexist without DMA conflicts.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-05-31T17:01:39.423Z
Learnt from: haslinghuis
PR: betaflight/config#798
File: configs/FURYF4OSD/config.h:88-88
Timestamp: 2025-05-31T17:01:39.423Z
Learning: For STM32F4xx platforms, PB1 pin timer definitions are:
1 = DEF_TIM(TIM1, CH3N, PB1, 0, 0)
2 = DEF_TIM(TIM3, CH4, PB1, 0, 0) 
3 = DEF_TIM(TIM8, CH3N, PB1, 0, 0)
Timer instance 2 (TIM3, CH4) is the correct mapping for PB1 motor control on STM32F4xx platforms as defined in src/platform/STM32/timer_stm32f4xx.c

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-07-25T20:06:07.492Z
Learnt from: haslinghuis
PR: betaflight/config#719
File: configs/SPEDIXG473/config.h:29-38
Timestamp: 2025-07-25T20:06:07.492Z
Learning: BMP280 and DPS310 barometer drivers in Betaflight do not require USE_I2C to be explicitly defined in board configurations. Many existing boards successfully use USE_BARO_BMP280 and USE_BARO_DPS310 without defining USE_I2C, indicating that the I2C dependency is handled automatically by the build system or these sensors support alternative communication methods.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-05-28T15:42:05.402Z
Learnt from: haslinghuis
PR: betaflight/config#792
File: configs/BEEROTORF4/config.h:30-30
Timestamp: 2025-05-28T15:42:05.402Z
Learning: The DEFAULT_GYRO_ENABLED macro with both gyros enabled (GYRO_MASK(0) | GYRO_MASK(1)) should only be added to board configurations that have DEFAULT_GYRO_TO_USE set to GYRO_CONFIG_USE_GYRO_BOTH. Boards without this setting should only get the GYRO_COUNT definition to specify the number of available gyros.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-05-28T15:42:05.402Z
Learnt from: haslinghuis
PR: betaflight/config#792
File: configs/BEEROTORF4/config.h:30-30
Timestamp: 2025-05-28T15:42:05.402Z
Learning: The DEFAULT_GYRO_ENABLED macro with both gyros enabled (GYRO_MASK(0) | GYRO_MASK(1)) should only be added to board configurations that have DEFAULT_GYRO_TO_USE set to GYRO_CONFIG_USE_GYRO_BOTH. Boards without this setting should only get the GYRO_COUNT definition.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-05-28T15:45:15.608Z
Learnt from: haslinghuis
PR: betaflight/config#792
File: configs/MERAKRCF722/config.h:32-32
Timestamp: 2025-05-28T15:45:15.608Z
Learning: The presence of GYRO_2_SPI_INSTANCE definition in a board config does not necessarily mean the board uses dual gyros. Some boards have GYRO_2_SPI_INSTANCE defined but it's not actually used, so they should not receive GYRO_COUNT or other dual-gyro related definitions. Only boards that actually utilize dual gyros should get these definitions.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-07-14T15:38:06.837Z
Learnt from: ot0tot
PR: betaflight/config#834
File: configs/RADIOLINKF405/config.h:52-53
Timestamp: 2025-07-14T15:38:06.837Z
Learning: In Betaflight flight controller configurations, it's common and intentional for UART2_RX_PIN and RX_PPM_PIN to share the same GPIO pin (like PA3) because they represent mutually exclusive receiver input protocols. The pin can be configured for either serial receiver input (UART2) or PPM input, but not both simultaneously. This is a standard design pattern in flight controller hardware.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-07-08T22:26:29.906Z
Learnt from: haslinghuis
PR: betaflight/config#829
File: configs/HELLBENDER_0001/config.h:53-56
Timestamp: 2025-07-08T22:26:29.906Z
Learning: In Betaflight configurations, SDCARD_CS_PIN and FLASH_CS_PIN can share the same GPIO pin because Betaflight uses either flash or sdcard storage, not both simultaneously. This is a mutually exclusive design where only one storage method is active at a time, so shared CS pin assignments are intentional and do not cause conflicts.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-07-23T13:43:50.456Z
Learnt from: ot0tot
PR: betaflight/config#0
File: :0-0
Timestamp: 2025-07-23T13:43:50.456Z
Learning: For Betaflight board configuration reviews, always verify that serial port defines (like ESC_SENSOR_UART, MSP_UART, GPS_UART, etc.) use valid SERIAL_PORT identifiers that match those defined in the Betaflight codebase at src/main/io/serial.h. Common valid identifiers include SERIAL_PORT_USART1, SERIAL_PORT_USART2, SERIAL_PORT_USART3, SERIAL_PORT_UART4, SERIAL_PORT_UART5, etc. Invalid identifiers like SERIAL_PORT_UART3 (should be SERIAL_PORT_USART3) will cause build failures.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-08-28T20:45:36.652Z
Learnt from: haslinghuis
PR: betaflight/config#888
File: configs/ZEX_ATHENA_MINI/config.h:0-0
Timestamp: 2025-08-28T20:45:36.652Z
Learning: In STM32H743 Betaflight configurations, PA15 maps to TIM2_CH1 (timer index 2) as defined in timer_stm32h7xx.c. When used for GYRO_CLKIN functionality, it's recommended to use the macro name GYRO_1_CLKIN_PIN in TIMER_PIN_MAPPING for consistency with other pin definitions.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
📚 Learning: 2025-08-20T02:54:58.596Z
Learnt from: ot0tot
PR: betaflight/config#872
File: configs/HGLRCH743/config.h:82-83
Timestamp: 2025-08-20T02:54:58.596Z
Learning: For Betaflight board configuration reviews, the definitive source for validating UART pin assignments is the serial_uart_{platform}.c file in the Betaflight codebase (e.g., serial_uart_stm32h7xx.c for STM32H7xx platforms), not generic MCU datasheets. These files contain the exact pin mappings that Betaflight supports for each UART peripheral.

Applied to files:

  • configs/GEPRC_TAKER_F405AIO/config.h
🔇 Additional comments (6)
configs/GEPRC_TAKER_F405AIO/config.h (6)

26-27: BOARD_NAME and MANUFACTURER_ID look correct.

BOARD_NAME matches the directory name; MANUFACTURER_ID is 4 chars.


84-90: Check DMA conflicts: LED strip vs SPI3 flash on F405.

On F4 targets TIM/DMA used for LED_STRIP and SPI3 DMA for flash can clash depending on mapping. With LED on PB1 (TIM3) and FLASH on SPI3, verify DMA streams don’t overlap; if they do, consider an alternate LED pin/timer or a different SPI for flash.

Also applies to: 92-105


39-39: Beeper polarity: confirm inversion matches hardware.

BEEPER_INVERTED with PC13 is fine if a low-active driver/transistor is used. Please confirm the beeper circuit expects inversion.

Also applies to: 101-101


44-44: PPM and UART6_RX sharing PC7 is OK.

PPM on PC7 and UART6_RX on the same pin are mutually exclusive by design and standard in BF targets.

Also applies to: 57-57


94-95: Good: I2C instances for BARO/MAG defined.

Matches prior review suggestion and typical wiring (I2C1 on PB8/PB9).


45-45: Run initiated. Once results are available, I’ll verify PB1’s timer mapping and update the review comment accordingly.

#define I2C2_SCL_PIN PB10
#define I2C1_SDA_PIN PB9
#define I2C2_SDA_PIN PB11
#define LED0_PIN PC14
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The usage of PC14 (or PC13/PC15 for that matter) are not recommended for powering LEDs, as these pins can only source or sink a limited amount of current.

See section 3.1.4.6 "LEDs" of the Betaflight Flight Controller Manufacturer Design Guidelines.

@YI-BOYANG YI-BOYANG closed this Sep 9, 2025
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3 participants