docs/Board - SPRacingF3.md

   1 # Board - SPRacingF3
   2
   3 The Seriously Pro Racing MOF3 board (SPRacingF3) is the first board designed specifically for Cleanflight.
   4
   5 Full details available on the website, here:
   6
   7 http://seriouslypro.com/spracingf3
   8
   9 ## Hardware Features
  10
  11 * No compromise I/O. Use all the features all the time; e.g. Connect your OSD + SmartPort + SBus + GPS + LED Strip + Battery Monitoring + Sonar + 8 motors - all at the same time!
  12 * On-board high-capacity black box flight log recorder - optimize your tuning and see the results of your setup without guesswork. (Acro and Deluxe)
  13 * Next-generation STM32 F3 processor with hardware floating point unit for efficient flight calculations and faster ARM-Cortex M4 core.
  14 * Stackable design - perfect for integrating with OSDs and power distribution boards.
  15 * 16 PWM I/O lines for ESCs, Servos and legacy receivers. 8 available on standard pin headers. 8 via side mounted connectors.
  16 * Supports SBus, SumH, SumD, Spektrum1024/2048, XBus, PPM, PWM receivers. No external inverters required (built-in).
  17 * Dedicated output for programmable LEDs - great for orientation, racing and night flying.
  18 * Dedicated I2C port for connection of OLED display without needing flight battery.
  19 * Battery monitoring ports for voltage and current.
  20 * Buzzer port for audible warnings and notifications.
  21 * Solder pads in addition to connectors for Sonar, PPM, RSSI, Current, GPIO, LED Strip, 3.3v,
  22 * Developer friendly debugging port (SWD) and boot mode selection, unbrickable bootloader.
  23 * Symmetrical design for a super tidy wiring.
  24 * Wire up using using pin headers, JST-SH sockets or solder pads. Use either right-angled or straight pin-headers.
  25 * Barometer mounted on the bottom of the board for easy wind isolation.
  26
  27 ## Serial Ports
  28
  29 | Value | Identifier   | RX           | TX           | 5v Tolerant | Notes                                                                                       |
  30 | ----- | ------------ | ------------ | ------------ | ----------- | ------------------------------------------------------------------------------------------- |
  31 | 1     | USART1       | PA10         | PA9          | YES         | Internally connected to USB port via CP2102 IC.  Also available on a USART1 JST connector and on through hole pins. |
  32 | 2     | USART2       | PA15         | PA14         | YES         | Available on USART2 JST port only. |
  33 | 3     | USART3       | PB11 / IO2_3 | PB10 / IO2_4 | NO          | Available on IO_2, USART3 JST port and through hole pins. |
  34
  35 * You cannot use SWD and USART2 at the same time.
  36 * You may encounter flashing problems if you have something connected to the USART1 RX/TX pins.   Power other devices of and/or disconnect them.
  37
  38 ## Pinouts
  39
  40 Full pinout details are available in the manual, here:
  41
  42 http://seriouslypro.com/spracingf3#manual
  43
  44 ### IO_1
  45
  46 The 8 pin IO_1 connector has the following pinouts when used in RX_PARALLEL_PWM mode.
  47
  48 | Pin | Function       | Notes                                        |
  49 | --- | -------------- | -------------------------------------------- |
  50 | 1   | Ground         |                                              |
  51 | 2   | VCC_IN         | Voltage as-supplied by BEC.                  |
  52 | 3   | RC_CH1         | |
  53 | 4   | RC_CH2         | |
  54 | 5   | RC_CH5         | |
  55 | 6   | RC_CH6         | |
  56 | 7   | LED_STRIP      | Enable `feature LED_STRIP`                   |
  57 | 8   | VCC            | 3.3v output for LOW CURRENT application only |
  58
  59 When RX_PPM/RX_SERIAL is used the IO_1 pinout is as follows.
  60
  61 | Pin | Function       | Notes                                        |
  62 | --- | -------------- | -------------------------------------------- |
  63 | 1   | Ground         |                                              |
  64 | 2   | VCC_IN         | Voltage as-supplied by BEC.                  |
  65 | 3   | RX_PPM         | Enable `feature RX_PPM`                      |
  66 | 4   | GPIO           |                                              |
  67 | 5   | SoftSerial1_RX |                                              |
  68 | 6   | SoftSerial1_TX |                                              |
  69 | 7   | LED_STRIP      | Enable `feature LED_STRIP`                   |
  70 | 8   | VCC            | 3.3v output for LOW CURRENT application only |
  71
  72 ### IO_2
  73
  74 The 8 pin IO_2 connector has the following pinouts when used in RX_PARALLEL_PWM mode.
  75
  76 | Pin | Function          | Notes                                        |
  77 | --- | ----------------- | -------------------------------------------- |
  78 | 1   | Ground            |                                              |
  79 | 2   | VCC_IN            | Voltage as-supplied by BEC.                  |
  80 | 3   | RC_CH3            |                                              |
  81 | 4   | RC_CH4            |                                              |
  82 | 5   | RC_CH7/SONAR_TRIG |                                              |
  83 | 6   | RC_CH8/SONAR_ECHO |                                              |
  84 | 7   | ADC_1             | Current Sensor                               |
  85 | 8   | ADC_2             | RSSI                                         |
  86
  87 When RX_PPM/RX_SERIAL is used the IO_2 pinout is as follows.
  88
  89 | Pin | Function                  | Notes                                        |
  90 | --- | ------------------------- | -------------------------------------------- |
  91 | 1   | Ground                    |                                              |
  92 | 2   | VCC_IN                    | Voltage as-supplied by BEC.                  |
  93 | 3   | RX_SERIAL                 | UART3 RX                                     |
  94 | 4   |                           | UART3_TX                                     |
  95 | 5   | SONAR_TRIG/SoftSerial2_RX | Enable `feature SONAR/SOFTSERIAL`     |
  96 | 6   | SONAR_ECHO/SoftSerial2_TX | Enable `feature SONAR/SOFTSERIAL`     |
  97 | 7   | ADC_1                     | Current Sensor                               |
  98 | 8   | ADC_2                     | RSSI                                         |
  99
 100 ### UART1/2/3
 101
 102 | Pin | Function       | Notes                                        |
 103 | --- | -------------- | -------------------------------------------- |
 104 | 1   | Ground         |                                              |
 105 | 2   | VCC_IN         | Voltage as-supplied by BEC.                  |
 106 | 3   | TXD            |                                              |
 107 | 4   | RXD            |                                              |
 108
 109 ### I2C
 110
 111 | Pin | Function       | Notes                                        |
 112 | --- | -------------- | -------------------------------------------- |
 113 | 1   | Ground         |                                              |
 114 | 2   | 5.0v           | Voltage as-supplied by BEC OR USB, always on |
 115 | 3   | SCL            |                                              |
 116 | 4   | SDA            |                                              |
 117
 118 ### SWD
 119
 120 The port cannot be used at the same time as UART2.
 121
 122 | Pin | Function       | Notes                                        |
 123 | --- | -------------- | -------------------------------------------- |
 124 | 1   | Ground         |                                              |
 125 | 2   | NRST           | Voltage as-supplied by BEC OR USB, always on |
 126 | 3   | SWDIO          |                                              |
 127 | 4   | SWDCLK         |                                              |
 128