How to Remove Readout Protection, Not able to Flash the code ?

RJANA.2 · ‎2021-10-20

Peter BENSCH · ‎2021-10-20

It depends on the RDP level whether you can remove it: level 1 is reversible, level 2 is a one-way street and not reversible.

For more details please read section Read protection (RDP) in the reference manual of your STM32.

Regards

/Peter

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RJANA.2 · ‎2021-10-20

Level 1 it is, suggest me to resolve this issue

@Peter BENSCH ench

Even there is No info in datasheet

Peter BENSCH · ‎2021-10-20

Right, the data sheet does not contain any information on this because it is not a device-specific question, but a family-specific one. As I have already written, the information can be found in the reference manual.

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Tesla DeLorean · ‎2021-10-20

What mode of connectivity are you using?

Should be possible to walk the part out of RDP via the serial port and ROM based System Loader. With BOOT0=HIGH user code will not run, and not interfere with debug pins/connectivity.

You fail to mention which STM32, as I recall AN-3155 describes the loader commands.

Segger/J-Link used to have a specific STM32 tools to reset/recover the devices into a usable state.

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