inav/docs/boards/DALRCF722DUAL.md

Board - DALRCF722DUAL

The DALRCF722DUAL described here: http://www.dalrcmodel.com/DALRC/plus/view.php?aid=188

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

Designers

• ZhengNyway(nyway@vip.qq.com) FROM DALRC