STMicroelectronics STM32F05 series - Figure 3. Flash Memory Page Erase Procedure

RM0091 Embedded Flash memory
Doc ID 018940 Rev 1 47/742
Figure 3. Flash memory Page Erase procedure
Read LOCK bit in
FLASH_CR
LOCK bit in FLASH_CR
=1
Yes
No
Yes
No
Perform unlock sequence
Write into FAR an address
within the page to erase
Write PER bit in FLASH_CR
Write STRT bit in FLASH_CR
to 1
BSY bit in FLASH_SR
= 1
Check the page is erased by
reading all the addresses in
the page
MS19221V1