atbetaflight/docs/boards/Board - DALRCF722DUAL.md

6.9 KiB

Board - DALRCF722DUAL

The DALRCF722DUAL described here:

This board use the STM32F722RET6 microcontroller and have the following features:

  • High-performance and DSP with FPU, ARM Cortex-M7 MCU with 512 Kbytes Flash
  • 216 MHz CPU,462 DMIPS/2.14 DMIPS/MHz (Dhrystone 2.1) and DSP instructions, Art Accelerator, L1 cache, SDRAM
  • DUAL gyro MPU6000 and ICM20602,could choose mpu6000,more stable and smooth.Or choose ICM20602,higher rate(32K/32K).Choose on CLI mode,experience different feature gyro on same board
  • OSD on board
  • The 16M byte SPI flash on board for data logging
  • USB VCP and boot select button on board(for DFU)
  • Stable voltage regulation,DUAL BEC 5v/2.5A and 10v/2A for VTX/camera etc.And could select 5v/10v with pad
  • Serial LED interface(LED_STRIP)
  • VBAT/CURR/RSSI sensors input
  • Suppose IRC Tramp/smart audio/FPV Camera Control/FPORT/telemetry
  • Supports SBus(built-in inverters), Spektrum1024/2048, PPM
  • Supports I2C device extend(baro/compass/OLED etc)(socket)
  • Supports GPS (socket)

All uarts have pad on board

Value Identifier RX TX Notes
1 USART1 PB7 PB6 PB7 FOR SBUS IN(inverter build in)/PPM
2 USART2 PA3 PA2 PAD USE FOR TRAMP/smart audio
3 USART3 PC11 PC10 USE FOR GPS
4 USART4 PA1 PA0 PA0 FOR RSSI/FPORT/TEL etc
5 USART5 PD2 PC12 PAD

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

Value Identifier function pin Notes
1 I2C1 SDA PB9
2 I2C1 SCL PB8

Buzzer/LED output

Value Identifier function pin Notes
1 LED0 LED PC14 On board
2 BEEPER BEE PC13 Pad

VBAT input with 1/10 divider ratio,Current signal input,Analog/digit RSSI input

Value Identifier function pin Notes
1 ADC1 VBAT PC1
2 ADC1 CURR PC0
3 ADC1 RSSI PA0

8 Outputs

Value Identifier function pin Notes
1 TIM4_CH2 PPM PB7 PPM
2 TIM8_CH1 OUPUT1 PC6 DMA
3 TIM8_CH2 OUPUT2 PC7 DMA
4 TIM8_CH3 OUPUT3 PC8 DMA
5 TIM8_CH4 OUPUT4 PC9 DMA
6 TIM1_CH1 OUPUT5 PA8 DMA
7 TIM1_CH2 OUPUT6 PA9 DMA
8 TIM1_CH3 OUPUT7 PA10 DMA NO PAD
9 TIM2_CH4 OUPUT8 PB11 NO PAD
10 TIM2_CH1 PWM PA15 DMA LED_STRIP
11 TIM3_CH4 PWM PB1 FPV Camera Control(FCAM)

Gyro & ACC ,support ICM20602 and MPU6000

Value Identifier function pin Notes
1 SPI1 SCK PA5 MPU6000 & ICM20602
2 SPI1 MISO PA6 MPU6000 & ICM20602
3 SPI1 MOSI PA7 MPU6000 & ICM20602
4 SPI1 CS1 PB0 MPU6000
5 SPI1 CS2 PA4 ICM20602
6 SPI1 INT1 PB10 MPU6000
7 SPI1 INT2 PC4 ICM20602

OSD MAX7456

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

16Mbyte flash

Value Identifier function pin Notes
1 SPI3 SCK PB3
2 SPI3 MISO PB4
3 SPI3 MOSI PB4
4 SPI3 CS PB2

SWD

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

DALRCF722DUAL top DALRCF722DUAL bottom

###Designers