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UM0290 Datasheet(PDF) 29 Page - STMicroelectronics

Part # UM0290
Description  This document presents a description
PDF  76 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0290 Datasheet(HTML) 29 Page - STMicroelectronics

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UM0290
Device firmware upgrade
29/76
DFU mode device descriptor
This descriptor is only present in the DFU mode descriptor set.
Table 6.
DFU mode device descriptor
Offset
Field
Size
Value
Description
0
bLength
1
12h
Size of this descriptor, in bytes.
1
bDescriptorType
1
01h
DEVICE descriptor type.
2
bcdUSB
2
0100h
USB specification release number in binary
coded decimal.
4
bDeviceClass
1
00h
See interface.
5
bDeviceSubClass
1
00h
See interface.
6
bDeviceProtocol
1
00h
See interface.
7
bMaxPacketSize0
1
8,16,32,
64
Maximum packet size for endpoint zero.
64 bytes for the STR7 and STR9 devices
8
idVendor
1
0483h
Vendor ID
10
idProduct
DF11h
Product ID
12
bcdDevice
011Ah
Version of the STMicroelectronics DFU
ExtensionSpecification release
14
iManufacturer
Index
Index of string descriptor.
15
iProduct
Index
Index of string descriptor.
16
iSerialNumber
Index
Index of string descriptor.
17
bNumbConfigurations
01h
One configuration only for DFU.



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