STM32F4 option byte location?

[ron239955_stm1]

Posted on December 14, 2012 at 19:21

There seems to be conflicting information on the location of the option bytes on the STM32F4. The STM32F4xx flash document says that they start at 0x1fffc000, but the F4 STDPeriph library uses the address 0x40023C14

Does anyone know the correct address to use?

[Tesla DeLorean]

Posted on December 14, 2012 at 19:52

The 0x40000000 ones are register loaded copies, the values are read from the flash memory array the options are programmed into.

Does anyone know the correct address to use? To do what? Writing is done at the 0x1FFFC000 addresses