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?