Arduino stm32 example for W5x00 ethernet modules.
This project uses this library.
PlatformIO will automatically install the required libraries according to the ini file.
Great!
$ python3 --version
Python 3.7.3
$ sudo apt install python3-pip python3-setuptools
$ python3 -m pip -V
pip 18.1 from /usr/lib/python3/dist-packages/pip (python 3.7)
# pip installed by apt is old, so update to the latest.
$ python3 -m pip install -U pip
$ python3 -m pip -V
pip 20.3.1 from /home/orangepi/.local/lib/python3.7/site-packages/pip (python 3.7)
# Update wheels.
$ python3 -m pip install -U wheel
$ pip3 install -U platformio
- STM32F103 Development Board
- W5100/W5200/W5500 Ethernet Module
About $5 for aliexpress/eBay.
W5100 is for 5V only.
W5500 can be used at both 3.3V / 5V. - ST-LINK/V2 or ST-LINK/V2.1 Module
Arduino-IDE only supports ST-LINK V2.1 adapters.
But OpenOCD used by PlatformIO supports both V2.0 and V2.1.
PlatformIO allows you to use cheap Chinese ST-LINK adapters.
You can get it at a low price (about $2).
You can use NECLEO board as ST-LINK/V2.1 - USB-TTL Converter
For Serial monitoring. - External Voltage Regurator
W5x00 ethernet modules require a lot of current.
BluePill or BlackPill board cannot supply too much current.
It is more stable when supplied from an external power source.
AMS1117 is often used.
It is automatically selected inside the library.
| PHY | STM32 | |
|---|---|---|
| MOSI | PA7 | |
| MISO | PA6 | |
| SCLK | PA5 | |
| SS | PA4 | *1 |
| RST | RESET | *2 |
| 3.3V | 3.3V | *3 |
| GND | GND | *3 |
(*1)
You can specify any pin in platformio.ini.
(*2)
Pull up when there is no RESET pin.
(*3)
BluePill or BlackPill board cannot supply too much current.
It is more stable when supplied from an external power source.
- Supplied from ST-LINK
+----------+ +----------+ +----------+
|BluePill | |ST-LINK | |HOST |
|BlackPill | | [------------] |
| |------------|SWD-IO [ USB ] |
| |------------|SWD-CLK [------------] |
| |------------|GND | | |
| |------------|3V3 | | |
| | +----------+ | |
| | | |
| | +----------+ | |
+----------+ | PA9|------------|RX | | |
| |---(MOSI)---| GND|------------|GND | | |
| |---(MISO)---| | | | | |
| |---(SCLK)---| | | | | |
| |---(SS)-----| | | USB-TTL [------------] |
| |---(RESET)--| | | [ USB ] |
| | | | | [/dev/ttyUSB0] |
| PHY | | | | [------------] |
| | +----------+ | | | |
| | | | | |
| | +----------+ | | | |
| |---(3V3)----|5v->3.3V |----(5V)----| | | |
| |---(GND)----|Regulator |----(GND)---| | | |
+----------+ +----------+ +----------+ +----------+
- Supplied from USB
+----------+ +----------+ +----------+
|BluePill | |ST-LINK | |HOST |
|BlackPill | | [------------] |
| |------------|SWD-IO [ USB ] |
| |------------|SWD-CLK [------------] |
| |------------|GND | | |
| | | | | |
| | +----------+ | |
| | | |
| [------------------------------------] |
+----------+ | [ USB ] |
| |---(MOSI)---| [------------------------------------] |
| |---(MISO)---| | | |
| |---(SCLK)---| | | |
| |---(SS)-----| |-------+ | |
| |---(RESET)--| |---+ | | |
| | | | | | | |
| PHY | | | | (GND) | |
| | +----------+ (5V) | | |
| | | | | |
| | +----------+ | | | |
| |---(3V3)----|5v->3.3V |---+ | | |
| |---(GND)----|Regulator |-------+ | |
+----------+ +----------+ +----------+
- Supplied from USB-TTL(Without firmware flash)
+----------+ +----------+ +----------+
|BluePill | |USB-TTL | |HOST |
|BlackPill | | [------------] |
| |----(5V)----| [ USB ] |
| |----(GND)---| [------------] |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
+----------+ | PA9|------------|RX | | |
| |---(MOSI)---| | | | | |
| |---(MISO)---| | | | | |
| |---(SCLK)---| | | | | |
| |---(SS)-----| |-------+ | | | |
| |---(RESET)--| |---+ | | | | |
| | | | | | | | | |
| PHY | | | | (GND) | | | |
| | +----------+ (5V) | | | | |
| | | | | | | |
| | +----------+ | | | | | |
| |---(3V3)----|5v->3.3V |---+ | | | | |
| |---(GND)----|Regulator |-------+ | | | |
+----------+ +----------+ +----------+ +----------+
- Supplied from USB Port(Without firmware flash)
+----------+ +----------+
|BluePill | |HOST |
|BlackPill [------------------------------------] |
| [ USB ] |
| [------------------------------------] |
| | | |
| | | |
| | | |
| | | |
| | | |
+----------+ | | | |
| |---(MOSI)---| | | |
| |---(MISO)---| | | |
| |---(SCLK)---| | | |
| |---(SS)-----| |-------+ | |
| |---(RESET)--| |---+ | | |
| | | | | | | |
| PHY | | | | (GND) | |
| | +----------+ (5V) | | |
| | | | | |
| | +----------+ | | | |
| |---(3V3)----|5v->3.3V |---+ | | |
| |---(GND)----|Regulator |-------+ | |
+----------+ +----------+ +----------+
Serial.print goto PA9.
git clone https://github.com/nopnop2002/Arduino-STM32-Ethernet
cd Arduino-STM32-Ethernet/DhcpAddressPrinter
pio run -t upload -e bluepill_f103c8
Serial.print goto USB Virtual COM port.
/dev/ttyACM0 may be change.
git clone https://github.com/nopnop2002/Arduino-STM32-Ethernet
cd Arduino-STM32-Ethernet/DhcpAddressPrinter
pio run -e bluepill_f103c8_usbcon -t upload && pio device monitor -b 115200 -p /dev/ttyACM0
- I has not been tested on a real W5200 controller.
- It cannot retrieve the Internal MAC address from WIZ550io.
See here.
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