FOXEERF722DUAL
The FOXEERF722DUAL 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 9v/2A for VTX/camera etc.And could select 5v/9v with pad
- Serial LED interface(LED_STRIP)
- VBAT/CURR/RSSI sensors input
- Suppose IRC Tramp/SmartAudio/FPV Camera Control/FPORT/telemetry
- Supports SBus, Spektrum1024/2048, PPM
- Supports I2C device extend(baro/compass/OLED etc)
- Supports GPS
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/SmartAudio |
| 3 | USART3 | PB11 | PB10 | 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 | outlet |
| 2 | I2C1 | SCL | PB8 | outlet |
Buzzer/LED output
| Value | Identifier | function | pin | Notes |
|---|
| 1 | LED0 | LED | PC15 | On board |
| 2 | BEEPER | BEE | PA4 | Pad |
| Value | Identifier | function | pin | Notes |
|---|
| 1 | ADC1 | VBAT | PC0 | On board |
| 2 | ADC1 | CURR | PC2 | |
| 3 | ADC1 | RSSI | PA0 | |
8 Outputs
| Value | Identifier | function | pin | Notes |
|---|
| 1 | TIM4_CH2 | PPM | PB7 | PPM |
| 2 | TIM1_CH2 | OUPUT1 | PA9 | DMA |
| 3 | TIM1_CH1 | OUPUT2 | PA8 | DMA |
| 4 | TIM8_CH4 | OUPUT3 | PC9 | DMA |
| 5 | TIM8_CH3 | OUPUT4 | PC8 | DMA |
| 6 | TIM8_CH1 | OUPUT5 | PC6 | DMA |
| 7 | TIM8_CH2 | OUPUT6 | PC7 | DMA |
| 8 | TIM2_CH1 | PWM | PA15 | DMA LED_STRIP |
| 9 | TIM2_CH2 | PWM | PB3 | 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 | PB2 | MPU6000 |
| 5 | SPI1 | CS2 | PB1 | ICM20602 |
| 6 | SPI1 | INT1 | PC4 | MPU6000 |
| 7 | SPI1 | INT2 | PB0 | ICM20602 |
OSD MAX7456
| Value | Identifier | function | pin | Notes |
|---|
| 1 | SPI3 | SCK | PC10 | |
| 2 | SPI3 | MISO | PC11 | |
| 3 | SPI3 | MOSI | PB5 | |
| 4 | SPI3 | CS | PC3 | |
16Mbyte flash
| Value | Identifier | function | pin | Notes |
|---|
| 1 | SPI2 | SCK | PB13 | |
| 2 | SPI2 | MISO | PB14 | |
| 3 | SPI2 | MOSI | PB15 | |
| 4 | SPI2 | CS | PB12 | |
SWD
| Pin | Function | Notes |
|---|
| 1 | SWCLK | PAD |
| 2 | Ground | PAD |
| 3 | SWDIO | PAD |
| 4 | 3V3 | PAD |
###Designers