78E052D Flash Unlock BIT

, Jan 31, 2025|
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Hello,

once i set MOVC-0 and LockBit-0 and flashed chip using universal programmer, is it possible to flash next time or not? i means after setting above bits, will chip in ROM mode or possible to flash another firmware?


Regard,

Nilesh

Reply

  • Hi Nilesh,

    No, but some people are still able to bypass the lock.

    The new models will be better in terms of code protection generally.

    Danny

    Hello Danny,

    I saw datasheet saying bits can be reset when all errase operation called. does it mean we can reset config bits and can program flash again ?


    Regard,

    Nilesh

    Hi Nilesh, 

    Okay, I'll ask the engineer to confirm this.

    Please understand that we have to wait for a few days because of the Lunar New Year holiday.

    Danny

  • Hi


    Could I know which universal programmer do you use? 

    In normal circumstances, it will erase-all opeation before program.


    Thanks.

  • Hi Nilesh, 

    According to the reply, erase all will be executed while programming by the universal programmer. 

    So the lock bit does not affect the programming of new firmware. 

    Danny

  • Thanks for information