STM32F407VGT The microcontroller is somehow goes under write protection mode while practicing firmware upgrade program.

[VKUMA.12]

STM32F407VGT

The microcontroller is somehow goes under write protection mode while practicing firmware upgrade program.

Is there any method to unlock write protection ?

Cant able to program though keil. But ST LINK UTILITY software is able to reprogram the microcontroller but not able to erase memory.

Iam using STM32F407VGT discovery board.

Please help!!!!!

[Tesla DeLorean · Accepted solution]

ST-LINK Utilites or STM32 Cube Programmer should allow program these as Options

[VKUMA.12]

Thanks for the reply!!!!!!!!!!!

Is there any method to remove write protection ?

[TDK]

> Is there any method to remove write protection ?

As clive1 said, both ST-Link Utility and STM32CubeProgrammer can remove write protection, which is specified in the option bytes.

> But ST LINK UTILITY software is able to reprogram the microcontroller but not able to erase memory.

Not sure how it can reprogram but not erase memory. Screenshots of the problem may help explain.

[VKUMA.12]

Thanks for reply issue resolved!!!!!!!!!!!!

Today i just unselect all memory in option bytes with level 0 security has unlocked the write protection of microcontroller now i can program it through keil.