Difference between revisions of "STM32F4 Discovery"
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!width="7%"|''Pin #''!!width="10%"|''Name''!!width="10%"|''Type''!!''Description'' | !width="7%"|''Pin #''!!width="10%"|''Name''!!width="10%"|''Type''!!''Description'' | ||
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|PD5||UART2 TX||Out||UART2 Serial Output | |PD5||UART2 TX||Out||UART2 Serial Output (usb power management fault output open drain) | ||
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|PD6||UART2 RX||In||UART2 Serial Input, also used for Spektrum input | |PD6||UART2 RX||In||UART2 Serial Input, also used for Spektrum input | ||
Revision as of 03:34, 31 May 2014
This page is for the STM32F4 Discovery board with STM32F407VGT6, STM32F4 Disco is a familiar board with STM32F401VCT6, do not use this Files for the Disco board !
Overview
- STMicroelectronics STM32F4VGT6 Cortex M4 MCU, up to 168Mhz with floating point unit (FPU), 192 KB RAM, 1024 KB Flash
- on-board STLinkv2 with SWD header (capable of programming onboard or external MCU)
- on-board power regulator for the MCU (3V or 5V Input)
- 1 x user push button
- 4(5) x LED (orange, green, red, blue, green)
- 4(6) x UART (UART1, UART2, UART3, (UART4, UART5), UART6)
- 1(3) x SPI (SPI1, (SPI2, SPI3))
- 2(3) x I2C (I2C1, I2C2, (I2C3))
- 6 x ADC inputs (one is used for BAT voltage)
- 1 x PPM input
- 1 x Spektrum input (with bind pin)
- 97 x 66 mm PCB
- 4 x status LED (USB red, USB green, power, USB OTG green, USB OTG red)
- LIS302DL MEMS 3 axis accelerometer on SPI1
Pinout
The Discovery has a male 100 pin (2x25pin on both sides, also accessible on both sides of the pcb) pinout.
| Pin # | Name | Type | Description | Color |
|---|---|---|---|---|
| PD13 | LED_3 | Out | above LIS302DL | Orange |
| PD12 | LED_4 | Out | left of LIS302DL | Green |
| PD14 | LED_5 | Out | right of LIS302DL | Red |
| PD15 | LED_6 | Out | below LIS302DL | Blue |
| PA9 | LED_9 | Out | same as USB power (VBUS, needs to be enabled in header file) | Green |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PB6 | UART1 TX | Out | UART1 Serial Output, 4k7 pullup for I2C |
| PB7 | UART1 RX | In | UART1 Serial Input |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PD5 | UART2 TX | Out | UART2 Serial Output (usb power management fault output open drain) |
| PD6 | UART2 RX | In | UART2 Serial Input, also used for Spektrum input |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PD8 | UART3 TX | Out | UART3 Serial Output |
| PD9 | UART3 RX | In | UART3 Serial Input |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PC10 | UART4 TX | Out | UART4 Serial Output |
| PC11 | UART4 RX | In | UART4 Serial Input |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PC12 | UART5 TX | Out | UART5 Serial Output |
| PD2 | UART5 RX | In | UART5 Serial Input |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PC6 | UART6 TX | Out | UART6 Serial Output |
| PC7 | UART6 RX | In | UART6 Serial Input |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PA5 | SPI1 SCK | I/O | SPI1 Serial clock |
| PA6 | SPI1 MISO | I/O | SPI1 Master In Slave Out |
| PA7 | SPI1 MOSI | I/O | SPI1 Master Out Slave In |
| PE2 | SPI SS0 | I/O | SPI1 Select Slave0 |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PB3 | SPI1 SCK | I/O | SPI1 Serial clock |
| PB4 | SPI1 MISO | I/O | SPI1 Master In Slave Out |
| PB5 | SPI1 MOSI | I/O | SPI1 Master Out Slave In |
| PE2 | SPI SS0 | I/O | SPI1 Select Slave0 |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PB13 | SPI2 SCK | I/O | SPI2 Serial clock |
| PB14 | SPI2 MISO | I/O | SPI2 Master In Slave Out |
| PB15 | SPI2 MOSI | I/O | SPI2 Master Out Slave In |
| PE7 | SPI SS1 | I/O | SPI2 Select Slave1 |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PC10 | SPI3 SCK | I/O | SPI3 Serial clock |
| PC11 | SPI3 MISO | I/O | SPI3 Master In Slave Out |
| PC12 | SPI3 MOSI | I/O | SPI3 Master Out Slave In |
| PE3 | SPI SS2 | I/O | SPI3 Select Slave1 |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PB8 | I2C1 SCL | I/O | I2C1 Serial Clock |
| PB9 | I2C1 SDA | I/O | I2C1 Serial Data |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PB10 | I2C2 SCL | I/O | I2C2 Serial Clock |
| PB11 | I2C2 SDA | I/O | I2C2 Serial Data |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PA8 | I2C3 SCL | I/O | I2C3 Serial Clock |
| PC9 | I2C3 SDA | I/O | I2C3 Serial Data |
Note: is disabled in header file, PA8 is used as Spektrum bind pin, PC9 is used as PPM (not Spektrum) input
| Pin # | Name | Type | Description |
|---|---|---|---|
| PB1 | AUX1 | I/O | ADC_1 |
| PC5 | AUX2 | I/O | ADC_2 |
| PC4 | AUX3 | I/O | ADC_3 |
| PA4 | BAT | I/O | ADC_4, is used for BAT voltage |
| PC1 | AUX5 | I/O | ADC_5 |
| PC2 | AUX6 | I/O | ADC_6 |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PE9 | PWM0 | Out | Servo 1 |
| PE11 | PWM1 | Out | Servo 2 |
| PE13 | PWM2 | Out | Servo 3 |
| PE14 | PWM3 | Out | Servo 4 |
| PE5 | PWM4 | Out | Servo 5 |
| PE6 | PWM5 | Out | Servo 6 |
| PA3 | PWM6 | Out | Servo 7 |
| PA2 | PWM7 | Out | Servo 8 |
| PA1 | PWM8 | Out | Servo 9 |
| PA0 | PWM9 | Out | Servo 10 |
| PB14 | PWM10 | Out | Servo 11, Can not be used if SPI2 is active |
| PB15 | PWM11 | Out | Servo 12, Can not be used if SPI2 is active |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PC9 | PPM | In | PPM input (remember, you need 100 Ohm serial termination in order to use this) |
| Pin # | Name | Type | Description |
|---|---|---|---|
| PA8 | Bind | Out | Spektrum bind pin |
| PA10 | PPM | IN | Spektrum PPM in |
Jumper
| Pin # | Name | Type | Description |
|---|---|---|---|
| JP1 | JP1 | Switch | MCU Current can be measured here |
| CN3 | CN3 | Switch | closed: STLinkV2 is connected to onboard MCU, open: is not connectec to onboard, only external header |
| Pin # | Name | Type | Description |
|---|---|---|---|
| SB17 | SB17 | Switch | Bypass for JP1, close this for security ! (if JP1 gets loose there is no power supply for the mcu) |
Daughterboard
Currently we have two different breakout/baughter boards.
SMD & Molex
Another option with Molex connectors, levelshifters for I2C and SPI, as well as connectors for Spektrum satellites and a can phy would be:
Currently under testing, eagle files are coming, when its completely finished and airworthy :-)
THT
Target for this board is to be a ultra low cost THT daughterboard which should provide as many functions as possible.
Notes
- Tall screw terminals can touch the THT solder joints from the discovery board. No electrical but a mechanical contact can appear. Don't force both pcb's all the way together.
- Only mount the components needed.
- If IR_Sensors are used used, maybe the diodes shouldn't be mounted and the voltage divider should be changed.
Servo Power options
- External power source (for digital servos, with higher voltage).
- Two solder jumpers to connect the servo power rail to the 5V net.
The servo rail also powers the RC receiver (PPM and Spektrum), take care of that if this rail runs on a higher voltage than 5V.
Servo and 5V net share the same GND ! (could cause problems if two different BEC are used from the same battery e.g.)
If you're interested in unassembled PCBs, I have some left; pfeffer.marius@gmail.com
Firmware Flashing
FLASH_MODE=STLINK is set as default
STM32F4 Discovery can mainly be programmed in two different ways:
STLINK
- with onboard STLinkV2 over SWD
- required hardware: usb to mini USB cable
- required software: st_flash and st_util from Texane
- more information: STLink page
DFU-UTIL
- with the MCU native (embedded in rom) DFU USB bootloader over the micro USB AB connector
- required hardware: USB to micro and USB to mini usb cable
- required external software: dfu-util
- push MCU in DFU mode: connect mini(for power) and micro USB to PC, connect pin BOOT0 with 3V, press reset button(LED LD7 should light up now), disconnect BOOT0
- more information: DFU page