DocID026161 Rev 4
23/111
UM1743
Kernel description
110
Note:
The video player module is not supported in STM32446E-EVAL demonstration.
Figure 19. Starting file execution for STM32446E-EVAL demonstration
3.9 Backup
and
settings configuration
The STM32CubeF4 demonstration saves the kernel and modules settings in two different
methods:
1.
Using the RTC backup register (32 bits data width) , in this method the data to be saved
should be a 32 bits data and could be defined as a bitfield structure, example:
The structure could be handled than, by using the two following kernel APIs to save or
restore it from the RTC backup registers.
2. Using the backup SRAM: the backup SRAM is a memory that the content is not lost
when the board is powered down. When available, the backup SRAM is 4 Kbytes size
