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AN3156 Scheda tecnica(PDF) 2 Page - STMicroelectronics

Il numero della parte AN3156
Spiegazioni elettronici  USB DFU protocol used in the STM32 bootloader
PDF  26 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3156 Scheda tecnica(HTML) 2 Page - STMicroelectronics

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Contents
AN3156
2/26
DocID017068 Rev 4
Contents
1
Bootloader code sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
USB DFU bootloader requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
DFU bootloader commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4
DFU_UPLOAD request commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1
Read memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2
Get command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5
DFU_DNLOAD request commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1
Write memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2
Set Address Pointer command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.3
Erase command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.4
Read Unprotect command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.5
Leave DFU mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6
Bootloader protocol version evolution . . . . . . . . . . . . . . . . . . . . . . . . . 24
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25



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