I am testing esp32wroom with the dm9051 demo_board spi ethernet controller a very compact set with simple examples expressed as tcp_ip server everything is working correctly in general all the examples work well we are using the basic spi setting.
spi host 2
spi clk 18
mosi 23
miso 19
cs spi 5
spi clk 20
int pin 4
rest gpio 16
phy adress 1
the whole degenerates when I try to carry out tests of troughtput to verify how robust the integration is. a simple test of about 300 seconds with example iperf generates a block of the operation of the esp32 ethernet infrastructure the board stops responding to the ping no error message or warning appears in the esp32 console you have any advice on how to trace the problem and what happens