mirror of https://github.com/ArduPilot/ardupilot
141 lines
3.8 KiB
Markdown
141 lines
3.8 KiB
Markdown
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# JFB-110 Flight Controller
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The JFB-110 flight controller is sold by [JAE](https://www.jae.com/Motion_Sensor_Control/eVTOL/FlightController/)
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## Features
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- STM32H755 microcontroller
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- Three IMUs: SCHA63T and IIM42652 x2
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- Two BAROs: MS5611 SPI barometer x2
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- builtin I2C IST8310 magnetometer
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- microSD card slot
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- 5 UARTs plus USB, RCIN, SBUS_OUT
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- 16 PWM outputs
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- Four I2C and two CAN ports
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- External Buzzer (Open/Drain and 33V Out)
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- external safety Switch
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- voltage monitoring for servo rail and Vcc
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- two dedicated power input ports for external power bricks
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## UART Mapping
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- SERIAL0 -> USB
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- SERIAL1 -> UART7 (Telem1)
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- SERIAL2 -> UART5 (Telem2)
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- SERIAL3 -> USART1 (GPS)
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- SERIAL4 -> UART4 (GPS2, marked UART/I2CB)
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- SERIAL5 -> USART6 (RCIN)
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- SERIAL6 -> UART8 (SBUS_OUT)
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- SERIAL7 -> USART3 (debug)
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- SERIAL8 -> USB (SLCAN)
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The Telem1 and Telem2 ports have RTS/CTS pins, the other UARTs do not
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have RTS/CTS.
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The USART3 connector is labelled debug, but is available as a general
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purpose UART with ArduPilot.
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## RC Input
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RC input is configured on the port marked DSM/SBUS RC. This connector
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supports all RC protocols. Two cables are available for this port. To
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use software binding of Spektrum satellite receivers you need to use
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the Spektrum satellite cable.
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## PWM Output
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The JFB-110 supports up to 16 PWM outputs.
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These are directly attached to the STM32H755 and support all
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PWM protocols.
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The 16 PWM outputs are in 6 groups:
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- PWM 1 and 2 in group1 (TIM15)
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- PWM 3 and 4 in group2 (TIM3)
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- PWM 5, 11 ,12 and 13 in group3 (TIM4)
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- PWM 6 ,9 and 10 in group4 (TIM1)
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- PWM 7 ,8 and 15 in group5 (TIM5)
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- PWM 14 and 16 in group6 (TIM12)
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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.
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## Battery Monitoring
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The board has two dedicated power monitor ports on 8 pin
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connectors. The correct battery setting parameters are dependent on
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the type of power brick which is connected.
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Recomended input voltage is 4.9 to 5.5 volt.
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## Compass
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The JFB-110 has a builtin IST8310 compass. Due to potential
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interference the board is usually used with an external I2C compass as
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part of a GPS/Compass combination.
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## GPIOs
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The 16 PWM ports can be used as GPIOs (relays, buttons, RPM etc). To
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use them you need to limit the number of these pins that is used for
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PWM by setting the BRD_PWM_COUNT to a number less than 6. For example
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if you set BRD_PWM_COUNT to 4 then PWM5 and PWM6 will be available for
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use as GPIOs.
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The numbering of the GPIOs for PIN variables in ArduPilot is:
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- PWM(1) 50
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- PWM(2) 51
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- PWM(3) 52
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- PWM(4) 53
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- PWM(5) 54
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- PWM(6) 55
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- PWM(7) 56
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- PWM(8) 57
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- PWM(9) 58
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- PWM(10) 59
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- PWM(11) 60
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- PWM(12) 61
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- PWM(13) 62
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- PWM(14) 63
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- PWM(15) 64
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- PWM(16) 65
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- FMU_CAP1 66
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- FMU_CAP2 67
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## Analog inputs
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The JFB-110 has 9 analog inputs
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- ADC Pin16 -> Battery Voltage
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- ADC Pin18 -> Battery Current Sensor
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- ADC Pin9 -> Battery Voltage 2
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- ADC Pin6 -> Battery Current Sensor 2
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- ADC Pin5 -> ADC 5V Sense
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- ADC Pin11 -> ADC 3.3V Sense
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- ADC Pin10 -> RSSI voltage monitoring
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- ADC Pin12 -> ADC SPARE 1
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- ADC Pin13 -> ADC SPARE 2
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## I2C Buses
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The JFB-110 has 4 I2C interfaces.
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I2C 3 is for internal only.
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- the internal I2C port is bus 3 in ArduPilot (I2C3 in hardware)
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- the port labelled I2CA is bus 4 in ArduPilot (I2C4 in hardware)
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- the port labelled I2CB is bus 2 in ArduPilot (I2C2 in hardware)
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- the port labelled GPS is bus 1 in ArduPilot (I2C1 in hardware)
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## CAN
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The JFB-110 has two independent CAN buses, with the following pinouts.
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## Debug
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The JFB-110 supports SWD debugging on the debug port
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## Loading Firmware
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The board comes pre-installed with an ArduPilot compatible bootloader,
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allowing the loading of *.apj firmware files with any ArduPilot
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compatible ground station.
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