docs/boards/Board - F3FC Racing.md

   1 # Board - F3FC Racing
   2
   3 Designed by RCExplorer.se
   4
   5 Full details available on the website, here:
   6
   7 http://rcexplorer.se/product/f3fc-racing/
   8
   9 ## Hardware Features
  10
  11 * STM32F303CC Processor
  12 * MPU6000 connected via SPI (With interrupt pin connected)
  13 * 3 UARTs
  14 * VCP USB
  15 * 6 PWM channels (PWM 6 used as PPM input when selected)
  16 * Supports SBus, SumH, SumD, Spektrum1024/2048, XBus and PPM receivers. No external inverters required.
  17 * Dedicated RGB LED control pin.
  18 * Dedicated I2C port
  19 * Integrated battery monitoring
  20 * Current sensor input pin
  21 * Buzzer/Beeper port
  22 * Built in 5V BEC (500mA)
  23 * Push button for entering DFU mode
  24 * 3.3V pad available for spectrum satellite receivers.
  25
  26 ## Serial Ports
  27
  28 | Value | Identifier   | RX           | TX           |  Notes                                                                                       |
  29 | ----- | ------------ | ------------ | ------------ | ------------------------------------------------------------------------------------------- |
  30 | 1     | VCP           | PA11         | PA12         | Mini USB connector |
  31 | 2     | USART1        | PB7          | PB6          | Marked as R1 and T1 on the board |
  32 | 3     | USART2        | PA3          | PA2          | Marked as R2 and T2 on the board  |
  33 | 4     | USART3        | PB11         | PB10         | Marked as R3 and T3 on the board  |
  34
  35 ## Pinouts
  36
  37 Full pinout details are available in the manual, here:
  38
  39 http://rcexplorer.se/product/f3fc-racing/
  40
  41 ### IOs
  42
  43 | Pad    | Signal         | Notes                                        |
  44 | ------ | -------------- | -------------------------------------------- |
  45 | Isense | PB2            | Analog sensor                                |
  46 | Vbat   | PA5            | Voltage supplied to the built in BEC         |
  47 | LED    | PB8            | RGB LED control                              |
  48 | FB     | PA6            | Servo position FeedBack / RSSI input         |
  49 | BZ-    | PA0            | Buzzer output                                |
  50 | 6      | PA1            | Used as PPM input when selected              |
  51 | SCLK   | PA9            | SCLK I2C                                     |
  52 | SDA    | PA10           | SDA I2C                                      |
  53
  54
  55 PWM’s are marked as 1-6
  56
  57 ## Voltage and current monitoring
  58
  59 Voltage is measured on the “Vbat” (which also powers the built in BEC) pads through a voltage divider of 10k/1k connected to PA5.
  60
  61 Isense pad is connected straight to PB2 and expects an analog voltage between 0-3.3V