AnsweredAssumed Answered

STM32F746 + Lwip, MCU load due to broadcast ???

Question asked by hochul yoo on May 2, 2018
Latest reply on May 2, 2018 by Bogdan Golab

Due to the wrong network configuration, 

It is assumed that broadcast packet looping has occurred.


STM32 MCU continuously receives broadcast packets.

As a result, the MCU load increases.

Tested on the STM32F746G-DISCOVERY board,

MCU load increased to 70 ~ 80%.


In this case, the polling period is broken and

Our products do not work properly.


Except for using the Serial to Ethernet Controller with TCP / IP Protocol stack,

Is there a way to avoid this problem?