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Frederic Pillon edited this page May 28, 2024 · 2 revisions

STM32Ethernet library

The STM32Ethernet library allows an STM32 board to connect to the internet.
It is based on the Ethernet library provides by Arduino.
This library is fully compatible with Arduino Ethernet library (https://www.arduino.cc/en/Reference/Ethernet).
Examples allow a quickstart.

Requirement

This library could only be used with STM32 board with Ethernet compatibility.
Ex:

  • NUCLEO-F429ZI
  • STM32F746G-DISCOVERY

The LwIP library must be installed to use the STM32Ethernet library.

Installation

Both libraries are available through the Arduino Libraries manager.
Click on "Sketch" menu and then "Include Library > Manage Libraries..."
Search "LwIP" then install "LwIP" and "STM32Ethernet"

Note

  • The library is based on LwIP, a Lightweight TCP/IP stack. http://git.savannah.gnu.org/cgit/lwip.git http://lwip.wikia.com/wiki/LwIP_Wiki

  • EthernetClass::maintain() in no more required to renew IP address from DHCP. It is done automatically by the LwIP stack in a background task.

  • An Idle task is required by the LwIP stack to handle timer and data reception. This idle task is called inside a timer callback each 1 ms by the function stm32_eth_scheduler(). A DEFAULT_ETHERNET_TIMER is set in the library to TIM14. DEFAULT_ETHERNET_TIMER can be redefined in the core variant. Be careful to not lock the system in a function which disabling IRQ. Call Ethernet::schedule() performs an update of the LwIP stack.

Source

STM32Ethernet
https://github.com/stm32duino/STM32Ethernet

LwIP
https://github.com/stm32duino/LwIP

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