I am using STM32G483CE MCU. I can't find out what will be the default value of DBANK bit in Flash Option Register. In Reference Manual it's default value is given as 0xFXXX XXXX. So which value we have to consider 0 or 1?

[djtilava]

Also Which is better option to use Single Bank mode or Dual Bank Mode?

I want to upgrade my application via bootloader and at the time of upgrade it is not necessary to continue currently running operation.

And In DBANK bit ,description is written as ,

Bit 22 DBANK:

0: Single bank mode with 128 bits data read width

1: Dual bank mode with 64 bits data

This bit can only be written when PCROPA/B is disabled.

But where PCROPA/B is found in which register?

@clive1

[Igor Cesko]

Hi djtilava ,

Default values of option bytes (ST production values) are described in reference manual - but in the "Option bytes" section.

Regards

Igor