STM32F429 code missing

[曹毅楠.1]

Hi Colleagues:

Our new product use STM32F407 to realize the function of TCP/IP with RJ45. The problem is the device will error when 10 days later.The bad device restart every four seconds and We must download again.Please help us to solve the problem, thanks!

[Tesla DeLorean]

Not sure what exactly what you're looking for, or expecting, here.

You and your team are going to need to do a much deeper analysis of what's happening.

Electrically make sure your circuit is not exceeding the absolute maximums called out in the data sheet.

If your code writes/changes flash, you might want to examine that more critically, adding sanity checking and looking for earlier signs of failure to reduce the detection time from 10 days.