mirror of https://github.com/ArduPilot/ardupilot
103 lines
3.2 KiB
Markdown
103 lines
3.2 KiB
Markdown
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# CSKY405 Flight Controller
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The CSKY405 is a flight controller produced by [ClearSky](http://csky.space/products/csky_405).
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## Features
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Processor
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STM32F405 168Mhz, 1MB 32-bit processor
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AT7456E OSD
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Sensors
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BMI088 Acc/Gyro
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BMP390 barometer
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Power
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2S - 6S Lipo input voltage with voltage monitoring
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90A Cont., 215A peak current monitor
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12V, 2A BEC for powering Video Transmitter controlled by GPIO
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5V, 2.5A BEC for internal and peripherals
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Interfaces
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10x PWM outputs DShot capable
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1x RC input
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6x UARTs/serial for GPS and other peripherals
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I2C port for external compass, airspeed, etc.
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microSDCard for logging, etc.
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USB-C port
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## Overview
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## Wiring Diagram
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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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- SERIAL0 -> USB
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- SERIAL1 -> UART4 (MAVLink2 telem)
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- SERIAL2 -> USART1 (Serial RC input) (DMA capable)
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- SERIAL3 -> UART5 (GPS)
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- SERIAL4 -> USART3 (User) (TX DMA capable)
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- SERIAL5 -> USART6 (User) (TX DMA capable)
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- SERIAL6 -> USART2(DMA Capable) (RX2 normally only used for single wire RC inputs (SBUS)PPM,etc.)t, but can be used as normal UART if :ref:`BRD_ALT_CONFIG<>` =1)
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## RC Input
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RC input is configured on the RX2 pin (inverted and sent to UART2_RX). It supports all single wire RC
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protocols except serial protocols such as CRSF, ELRS, etc. Instead, these devices can be connected using both TX2 and RX2 if if :ref:`BRD_ALT_CONFIG<BRD_ALT_CONFIG>` =1 and :ref:`SERIAL6_PROTOCOL<SERIAL6_PROTOCOL>` set to "23".
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## OSD Support
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The CSKY405 supports using its internal OSD using OSD_TYPE 1 (MAX7456 driver). External OSD support such as DJI or DisplayPort is supported using USART6 or any other free Uaet. See :ref:`common-msp-osd-overview-4.2` for more info.
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## PWM Output
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The CSKY405 supports up to 10 PWM outputs. All outputs support DShot.
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The PWM is in 5 groups:
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- PWM 1 in group1
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- PWM 2 in group2
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- PWM 3,4 in group3
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- PWM 5,6,10 in group4
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- PWM 7 in group5
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- PWM 8,9 in group6
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## Battery Monitoring
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The board has a builting voltage and current sensors. The current
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sensor can read up to 90A continuosly, 215 Amps peak. The voltage sensor can handle up to 6S
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LiPo batteries.
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The correct battery setting parameters are set by default and are:
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- BATT_MONITOR 4
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- BATT_VOLT_PIN 14
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- BATT_CURR_PIN 7
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- BATT_VOLT_MULT 21.0
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- BATT_AMP_PERVLT 10.35
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## Compass
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The CSKY405 does not have a built-in compass, but you can attach an external compass using I2C on the SDA and SCL pads.
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## VTX power control
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GPIO 84 controls the VTX BEC output to pins marked "12V". Setting this GPIO high removes voltage supply to pins.
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## Loading Firmware
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Firmware for these boards can be found at https://firmware.ardupilot.org in sub-folders labeled CSKY405.
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Initial firmware load can be done with DFU by plugging in USB with the
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boot button pressed. Then you should load the "CSKY405_bl.hex"
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firmware, using your favourite DFU loading tool.
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Subsequently, you can update firmware with Mission Planner.
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