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STM32F103 bootloader recover

Question asked by Nick Belazor on May 7, 2018
Latest reply on May 16, 2018 by Amel N

Hello!

 

MCU: STM32F103RE

 

when i reset Read Out Protection from my bootloader (from bootloder sub-programm from RAM) i have a erased internal flash. Set ROP to 1 -> 0. All ok! But.. how i can back data write to first 4k?? first 2 pages is locked for RO!

 

But flash already is cleared! Data lost and all good. and why i still can not write to first blocks?

 

how i can reset RW protect from first 2 pages WITHOUT full reset (then RAM is corrupted and MCU is not bootable)?

It's need for restore my bootloader from RAM before BIG RESET or power off

 

Please, help!

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