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AN3262 Arkusz danych(PDF) 24 Page - STMicroelectronics

Numer części AN3262
Szczegółowy opis  Using the over-the-air bootloader with STM32W108 devices
PDF  27 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3262 Arkusz danych(HTML) 24 Page - STMicroelectronics

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Bootloader command set
AN3262
24/27
Doc ID 17845 Rev 2
Figure 26.
ERASE MEMORY command (device side)
1.
ER = ERASE MEMORY command.
The host sends bytes to the STM32 as follows:
Byte 1:
0x43
Byte 2:
0xBC
Wait for ACK
Byte 3:
Number of pages to be erased – 1
(0
≤ N ≤ maximum number of pages)
Byte 4:
N + 1 bytes (page numbers)
and then checksum (XOR value of N, N+1 bytes)
Ai14644c
ROP active
Receive the number of pages
to be erased (1 byte)
No
Yes
Start ER(1)
No
Received bytes =
0x43+0xBC?
Send ACK byte
Receive the page codes
Checksum
OK?
Send NACK byte
End of ER(1)
No
Yes
No
Yes
Receive the checksum
Erase the corresponding pages
Send ACK byte



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