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AN3262 Arkusz danych(PDF) 18 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) 18 Page - STMicroelectronics

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Bootloader command set
AN3262
18/27
Doc ID 17845 Rev 2
Figure 20.
GO command (device side)
The host sends the following bytes to the STM32 device:
Byte 1:
0x21
Byte 2:
0xDE
Wait for ACK
Bytes 3 to 6:
Start address (Byte 3 is the MSB and Byte 6 is the LSB)
Byte 7:
Checksum (XOR value of Bytes 3 to 6)
The second and third ACK/NACKs are sent by the device within the same 802.15.4 packet
while the first is sent independently.
Ai14640b
Received bytes =
0x21+0xDE?
Start Go
ROP active
Send ACK byte
Send ACK byte
Receive the start address (4 bytes)
& checksum
Address valid &
checksum
OK?
Send ACK byte
Jump to user application
Send NACK byte
No
Yes
No
Yes
No
End of Go



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