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Can not read memory! Disable Read Out Protection and retry

Question asked by 孙 干 on Aug 25, 2017
Latest reply on Aug 25, 2017 by Imen D

I  got my new board, When I  want to download the .hex file, I tried to use the keil 5.14 and ST-link utility ,failed.

 

the message I got from the ST-link utility is:Can not read memory! Disable Read Out Protection and retry.

 

I didn't do anything to the MCU.

the device:STM32F427IG. it's new.

another question:Why I can't read the Flash size?(Unkonwn)

look  forward your help.

thank you

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