SH7052: how to prevent FDT to erase memory while get connected?

Hi guys,

I'm using the Renesas FDT to re-flash the SH7052 via serial comunication but every time I connect to the board the memory is cleaned up (all 0xFF).

Can you give me some info?

Is that bheavior appied to all SH famly?  Is there a way to prevent the automatic erase?

 

 

Thanks!

Parents Reply
  • Thanks Frank for your reply!
    If I'm not wrong there are some SW that can read the SH family, via serial connection, without clean up the memory...
    I'd like to understand how this kind of "protection" has been done in the micro and how that SW can by-pass it if it was made for security. Maybe it's just a feature that can be enable/disable not a real security feature!?
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