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PM0063 bảng dữ liệu(PDF) 15 Page - STMicroelectronics

tên linh kiện PM0063
Giải thích chi tiết về linh kiện  STM32F100xx value line Flash programming
PDF  30 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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PM0063 bảng dữ liệu(HTML) 15 Page - STMicroelectronics

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PM0063
Reading/programming the STM32F100xx embedded Flash memory
Doc ID 16211 Rev 2
15/30
Figure 2.
Flash memory Page Erase procedure
Mass Erase
The Mass Erase command can be used to completely erase the user pages of the Flash
memory. The information block is unaffected by this procedure. The following sequence is
recommended:
●
Check that no Flash memory operation is ongoing by checking the BSY bit in the
FLASH_SR register
●
Set the MER bit in the FLASH_CR register
●
Set the STRT bit in the FLASH_CR register
●
Wait for the BSY bit to be reset
●
Read all the pages and verify
Read FLASH_CR_LOCK
FLASH_CR_LOCK
= 1
Yes
No
Yes
No
Perform unlock sequency
Write into FAR an address
within the page to erase
Write FLASH_CR_PER to 1
Write FLASH_CR_STRT to 1
FLASH_SR_BSY
= 1
Check the page is erased by
reading all the addresses in
the page
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