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AN3156 Scheda tecnica(PDF) 14 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) 14 Page - STMicroelectronics

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DFU_DNLOAD request commands
AN3156
14/26
DocID017068 Rev 4
5
DFU_DNLOAD request commands
The download request is used to perform different commands. The command selection is
done through the value of parameter wValue in the USB request structure. The following
operations are supported:
•
Write Memory (wValue > 1)
•
Set Address Pointer (wValue = 0 and first byte = 0x21)
•
Erase (wValue = 0 and first byte = 0x41)
•
Read Unprotect (wValue = 0 and first byte = 0x92)
•
Leave DFU (leave DFU mode and Jump to application)



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