HAL_PWR_EnableBkUpAccess() function

Enables access to the backup domain (RTC registers, RTC backup data registers and backup SRAM).

Syntax

Show:

Summary

Declaration

Definition

from stm32f4xx_hal_pwr.h:287

void HAL_PWR_EnableBkUpAccess(void);

Implemented in stm32f4xx_hal_pwr.c:108

Return value

None

Notes

If the HSE divided by 2, 3, ..31 is used as the RTC clock, the Backup Domain Access should be kept enabled. The following sequence is required to bypass the delay between DBP bit programming and the effective enabling of the backup domain. Please check the Errata Sheet for more details under "Possible delay in backup domain protection disabling/enabling after programming the DBP bit" section.

Examples

HAL_PWR_EnableBkUpAccess() is referenced by 36 libraries and example projects:

References

from examples

HAL_PWR_EnableBkUpAccess() function

Syntax

Return value

Notes

Examples

References

Call Tree

Data Use

Class Tree

Override Tree

Implementations

Instances

Lifecycle