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# KakuteH7Mini Flight Controller |
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|
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The KakuteH7Mini is a flight controller produced by [Holybro](http://www.holybro.com/). |
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|
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## Features |
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|
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- MCU - STM32H743 32-bit processor running at 480 MHz |
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- IMU - MPU6000 |
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- Barometer - BMP280 |
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- OSD - AT7456E |
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- Onboard Flash: 128Mbits |
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- 6x UARTs (1,2,3,4,6,7) |
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- 9x PWM Outputs (8 Motor Output, 1 LED) |
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- Battery input voltage: 2S-6S |
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- BEC 5V 2A |
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|
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## Pinout |
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|
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![KakuteH7Mini Board](KakuteH7Mini_Board.jpg "KakuteH7Mini") |
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|
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## UART Mapping |
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The UARTs are marked Rn and Tn in the above pinouts. The Rn pin is the |
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receive pin for UARTn. The Tn pin is the transmit pin for UARTn. |
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|
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- SERIAL0 -> USB |
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- SERIAL1 -> UART1 (DJI VTX, DMA-enabled) |
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- SERIAL2 -> UART2 (VTX) |
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- SERIAL3 -> UART3 (GPS, DMA-enabled) |
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- SERIAL4 -> UART4 (DMA-enabled) |
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- SERIAL5 -> not available |
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- SERIAL6 -> UART6 (RX/SBUS, DMA-enabled) |
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- SERIAL7 -> UART7 (ESC Telemetry) |
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|
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## RC Input |
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RC input is configured on the R6 (UART6_RX) pin. It supports all serial RC |
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protocols. For protocols requiring half-duplex serial to transmit |
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telemetry (such as FPort) you should setup SERIAL6 as an RC input serial port, |
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with half-duplex, pin-swap and inversion enabled. |
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|
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## FrSky Telemetry |
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FrSky Telemetry is supported using the T6 pin (UART6 transmit). You need to set the following parameters to enable support for FrSky S.PORT |
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- SERIAL6_PROTOCOL 10 |
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- SERIAL6_OPTIONS 7 |
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|
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## OSD Support |
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The KakuteH7Mini supports OSD using OSD_TYPE 1 (MAX7456 driver). |
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|
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## PWM Output |
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The KakuteH7Mini supports up to 9 PWM outputs. The pads for motor output |
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M1 to M4 on the motor connectors and M5 to M8 on separate pads, plus |
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M9 for LED strip or another PWM output. |
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The PWM is in 5 groups: |
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- PWM 1, 2 in group1 |
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- PWM 3, 4 in group2 |
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- PWM 5, 6 in group3 |
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- PWM 7, 8 in group4 |
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- PWM 9 in group5 |
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|
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Channels within the same group need to use the same output rate. If |
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any channel in a group uses DShot then all channels in the group need |
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to use DShot. Channels 1-4 support bi-directional dshot. |
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|
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## Battery Monitoring |
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The board has a builting voltage and current sensor. The current |
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sensor can read up to 130 Amps. The voltage sensor can handle up to 6S |
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LiPo batteries. |
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The correct battery setting parameters are: |
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|
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- BATT_MONITOR 4 |
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- BATT_VOLT_PIN 10 |
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- BATT_CURR_PIN 11 |
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- BATT_VOLT_MULT 11.1 |
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- BATT_AMP_PERVLT 59.5 |
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|
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## Compass |
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The KakuteH7Mini does not have a builtin compass, but you can attach an external compass using I2C on the SDA and SCL pads. |
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|
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## Loading Firmware |
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Initial firmware load can be done with DFU by plugging in USB with the |
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bootloader button pressed. Then you should load the "with_bl.hex" |
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firmware, using your favourite DFU loading tool. |
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|
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Once the initial firmware is loaded you can update the firmware using |
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any ArduPilot ground station software. Updates should be done with the |
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*.apj firmware files. |
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include ../KakuteH7Mini/hwdef-bl.dat |
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# KakuteH7Mini v2 with larger flash chip |
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include ../KakuteH7Mini/hwdef.dat |
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undef mpu6000 |
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undef IMU |
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SPIDEV bmi270 SPI4 DEVID1 MPU6000_CS MODE3 1*MHZ 4*MHZ |
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IMU BMI270 SPI:bmi270 ROTATION_PITCH_180_YAW_90 |
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define HAL_LOGGING_DATAFLASH_DRIVER AP_Logger_W25N01GV |
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