STM32 FreeRTOS LWIP Auto Reconnect

Intro

Attempt to make Ethernet reconnect after the board is initialized without the cable plugged in. Similar to https://github.com/xmkllc/STM32_LWIP_Auto_Reconnect but with FreeRTOS.

Hardware

• STM32F407VGTx Discovery
• STM32F4DIS-BB expansion board (PHY: Lan8742A)

CubeMX Configuration

• Start without default settings
• Clock: enable HSE (PCLK1 42MHz)
  • Use TIM1 as timebase source
• ETH:
  • RMII
  • PHY addr: 0 (default is wrong)
  • Ethernet global interrupt: enabled
  • Auto negotiation: enabled
• FreeRTOS:
  • Interface: CMSIS_V2
  • Add nic monitoring timer
  • defaultTaks stack size: 512
• LWIP:
• LEDs: