1

I'm currently tuning some code written for an STM32F070, where we use one byte on user option byte to keep some flags between Resets, using:

FLASH_ProgramOptionByteData(ADRESSE_OPTION_BYTE_DATA0, status_to_store);

Reading carefully the datasheet from our new STM32F446 lets me think that it is no longer possible to use option bytes to store one user byte...

1 - Am I Right with this assertion ? If not, what did I miss ?

2 - Is there some workaround, not involving to rewrite a sector of the flash ?

C. MARIN
  • 95
  • 9

1 Answers1

3

I am not an expert on stm32, rather still a beginner, but maybe you could have a look on the RTC backup register to hold your data ?

Sebastien
  • 51
  • 4