docs/Board - FOXEERF722DUAL.md

   1 # Board - FOXEERF722DUAL, Foxeer F722 V2 and Foxeer F722 Mini
   2
   3 The Foxeer F722 DUAL, Foxeer F722 V2 and Foxeer F722 Mini  described here:
   4
   5 This board use the STM32F722RET6 microcontroller and have the following features:
   6 * High-performance and DSP with FPU, ARM Cortex-M7 MCU with 512 Kbytes Flash
   7 * 216 MHz CPU,462 DMIPS/2.14 DMIPS/MHz (Dhrystone 2.1) and DSP instructions, Art Accelerator, L1 cache, SDRAM
   8 * 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
   9 * OSD on board
  10 * The 16M byte SPI flash on board for data logging
  11 * USB VCP and boot select button on board(for DFU)
  12 * Stable voltage regulation,DUAL BEC  5v/2.5A and 9v/2A for VTX/camera etc.And could select 5v/9v with pad
  13 * Serial LED interface(LED_STRIP)
  14 * VBAT/CURR/RSSI sensors input
  15 * Suppose IRC Tramp/smart audio/FPV Camera Control/FPORT/telemetry
  16 * Supports SBus, Spektrum1024/2048, PPM
  17 * Supports I2C device extend(baro/compass/OLED etc)
  18 * Supports GPS
  19
  20 ### All uarts have pad on board
  21 | Value | Identifier   | RX   | TX   | Notes                                                                                       |
  22 | ----- | ------------ | -----| -----| ------------------------------------------------------------------------------------------- |
  23 | 1     | USART1       | PB7  |  PB6 |  PB7 FOR SBUS IN(inverter build in)/PPM                                                     |
  24 | 2     | USART2       | PA3  |  PA2 |  PAD USE FOR TRAMP/smart audio                                                              |
  25 | 3     | USART3       | PB11 |  PB10|  USE FOR GPS                                                                                |
  26 | 4     | USART4       | PA1  |  PA0 |  PA0 FOR RSSI/FPORT/TEL etc                                                                 |
  27 | 5     | USART5       | PD2  |  PC12|  PAD                                                                                        |
  28
  29
  30 ### I2C with GPS port together.Use for BARO or compass etc
  31 | Value | Identifier   | function |  pin   | Notes                                                                                 |
  32 | ----- | ------------ | ---------| -------| ------------------------------------------------------------------------------------- |
  33 | 1     | I2C1         |    SDA   |  PB9   | outlet
  34 | 2     | I2C1         |    SCL   |  PB8   | outlet
  35
  36
  37 ### Buzzer/LED output
  38 | Value | Identifier   | function |  pin   | Notes                                                                                 |
  39 | ----- | ------------ | ---------| -------| ------------------------------------------------------------------------------------- |
  40 | 1     | LED0         |    LED   |  PC15  |On board
  41 | 2     | BEEPER       |    BEE   |  PA4   |Pad
  42
  43
  44 ### VBAT input with 1/10 divider ratio,Current signal input,Analog/digit RSSI input
  45 | Value | Identifier   | function  |  pin  | Notes                                                                                 |
  46 | ----- | ------------ | ----------| ------| ------------------------------------------------------------------------------------- |
  47 | 1     | ADC1         |    VBAT   |  PC0  | On board
  48 | 2     | ADC1         |    CURR   |  PC2  |
  49 | 3     | ADC1         |    RSSI   |  PA0  |
  50
  51
  52 ### 8 Outputs
  53 | Value | Identifier   | function  |  pin  | Notes                                                                                 |
  54 | ----- | ------------ | ----------| ------| ------------------------------------------------------------------------------------- |
  55 | 1     | TIM4_CH2     |    PPM    |  PB7  |  PPM
  56 | 2     | TIM1_CH2     |    OUPUT1 |  PA9  |  DMA
  57 | 3     | TIM1_CH1     |    OUPUT2 |  PA8  |  DMA
  58 | 4     | TIM8_CH4     |    OUPUT3 |  PC9  |  DMA
  59 | 5     | TIM8_CH3     |    OUPUT4 |  PC8  |  DMA
  60 | 6     | TIM8_CH1     |    OUPUT5 |  PC6  |  DMA
  61 | 7     | TIM8_CH2     |    OUPUT6 |  PC7  |  DMA
  62 | 8     | TIM2_CH1     |    PWM    |  PA15 |  DMA  LED_STRIP
  63 | 9     | TIM2_CH2     |    PWM    |  PB3  |  FPV Camera Control(FCAM)
  64
  65
  66 ### Gyro & ACC ,support ICM20602 and MPU6000
  67 | Value | Identifier   | function |  pin   | Notes                                                                                 |
  68 | ----- | ------------ | ---------| -------| ------------------------------------------------------------------------------------- |
  69 | 1     | SPI1         |    SCK   |  PA5   | MPU6000 & ICM20602
  70 | 2     | SPI1         |    MISO  |  PA6   | MPU6000 & ICM20602
  71 | 3     | SPI1         |    MOSI  |  PA7   | MPU6000 & ICM20602
  72 | 4     | SPI1         |    CS1   |  PB2   | MPU6000
  73 | 5     | SPI1         |    CS2   |  PB1   | ICM20602
  74 | 6     | SPI1         |    INT1  |  PC4   | MPU6000
  75 | 7     | SPI1         |    INT2  |  PB0   | ICM20602
  76
  77 ### OSD MAX7456
  78 | Value | Identifier   | function |  pin   | Notes                                                                                 |
  79 | ----- | ------------ | ---------| -------| ------------------------------------------------------------------------------------- |
  80 | 1     | SPI3         |    SCK   |  PC10  |
  81 | 2     | SPI3         |    MISO  |  PC11  |
  82 | 3     | SPI3         |    MOSI  |  PB5   |
  83 | 4     | SPI3         |    CS    |  PC3   |
  84
  85 ### 16Mbyte flash
  86 | Value | Identifier   | function |  pin   | Notes                                                                                 |
  87 | ----- | ------------ | ---------| -------| ------------------------------------------------------------------------------------- |
  88 | 1     | SPI2         |    SCK   |  PB13  |
  89 | 2     | SPI2         |    MISO  |  PB14  |
  90 | 3     | SPI2         |    MOSI  |  PB15  |
  91 | 4     | SPI2         |    CS    |  PB12  |
  92
  93 ### SWD
  94 | Pin | Function       | Notes                                        |
  95 | --- | -------------- | -------------------------------------------- |
  96 | 1   | SWCLK          | PAD                                          |
  97 | 2   | Ground         | PAD                                          |
  98 | 3   | SWDIO          | PAD                                          |
  99 | 4   | 3V3            | PAD                                          |
 100
 101
 102 ### Designers
 103 * NywayZheng(nyway@vip.qq.com)