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Board---JHEF7DUAL.md

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Board - JHEF7DUAL

Features

  • Processors and Sensors
    • MCU: STM32F722RET6
    • IMU: ICM20689(Gyro1) & MPU6000(Gyro2) connected via SPI1
    • Baro: BMP280 (connected via I2C1)
    • OSD: BetaFlight OSD (AT7456E connected via SPI2)
  • Blackbox: FLASH M25P16 (connected via SPI3)
  • 6 UARTs (1,2,3,4,5,6)
  • 8 Dshot outputs
  • 2 PINIO (VTX power switcher/user1 and 2 camera switcher/user2)
  • USB VCP and boot select button on board (for DFU)
  • Serial LED interface(LED_STRIP)
  • VBAT / CURR / RSSI sensors input
  • Suppose IRC Tramp / Smart audio / FPV Camera Control / FPORT/telemetry
  • Supports SBus, Spektrum1024/2048, PPM. No external inverters required (built-in).
  • Supports I2C device extend(Compass / OLED etc)
  • Supports GPS

Pinout

All uarts have pad on board

Value Identifier RX TX Notes
1 USART1 PA10 PA9 FOR SBUS IN(inverter build in)
2 USART2 PA3 PA2 USE FOR TRAMP/smart audio
3 USART3 PB11 PB10 USE FOR GPS
4 USART4 PA1 PA0 PAD USE FOR TRAMP/smart audio
5 USART5 PD2 PC12 PAD ESC sensor
6 USART6 PC7 PC6 PAD

I2C with GPS port together.Use for BARO or compass etc

Value Identifier function pin Notes
1 I2C1 SDA PB7
2 I2C1 SCL PB6

Buzzer/LED output

Value Identifier function pin Notes
1 LED0 LED PA15
2 BEEPER BEE PC15

VBAT input, Current input, Analog RSSI input

Value Identifier function pin Notes
1 ADC1 VBAT PC2 DMA2_Stream0
2 ADC1 CURR PC1 DMA2_Stream0
3 ADC1 RSSI PC0 DMA2_Stream0

PWM Input & PWM Output

Value Identifier function pin Notes
1 TIM9_CH2 PPM PA3 PPM
2 TIM3_CH3 Motor1 PB0 DMA1_Stream2
3 TIM3_CH4 Motor2 PB1 DMA1_Stream2
4 TIM3_CH1 Motor3 PB4 DMA1_Stream4
5 TIM2_CH2 Motor4 PB3 DMA1_Stream6
7 TIM8_CH4 Motor5 PC9 DMA2_Stream1
8 TIM8_CH3 Motor6 PC8 DMA2_Stream4
9 TIM1_CH1 LED PA8 LED STRIP
10 TIM4_CH3 ANY PB8 FC CAM

Gyro & ACC ICM20689

Value Identifier function pin Notes
1 SPI1 SCK PA5 MPU6000 & ICM20689
2 SPI1 MISO PA6 MPU6000 & ICM20689
3 SPI1 MOSI PA7 MPU6000 & ICM20689
4 SPI1 CS2 PA4 MPU6000
5 SPI1 CS1 PB2 ICM20689
6 SPI1 INT2 PC3 MPU6000
7 SPI1 INT1 PC4 ICM20689

OSD MAX7456

Value Identifier function pin Notes
1 SPI2 SCK PB13
2 SPI2 MISO PB14
3 SPI2 MOSI PB15
4 SPI2 CS PB12

2MB FLash

Value Identifier function pin Notes
1 SPI3 SCK PC10
2 SPI3 MISO PC11
3 SPI3 MOSI PB5
4 SPI3 CS PC13

SWD

Pin Function Notes
1 SWCLK PAD
2 Ground PAD
3 SWDIO PAD
4 3V3 PAD

Designers

  • JHE_FPV