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NRF24AP2-USBQ32-R 数据表(PDF) 23 Page - List of Unclassifed Manufacturers |
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NRF24AP2-USBQ32-R 数据表(HTML) 23 Page - List of Unclassifed Manufacturers |
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23 / 44 page ![]() Revision 1.0 Page 23 of 44 nRF24AP2-USB Product Specification The device descriptor contains basic information about the device such as the supported USB version, maximum packet size, vendor and product IDs. Table 5. Device descriptors The configuration descriptor specifies how the device is powered, the maximum power consumption, and the number of interfaces used. Table 6. Configuration descriptor Field Notes Value Description bLength 0x12 18 bDescriptorType 0x01 DEVICE bcdUSB 0x0200 2.0 bDeviceClass 0x00 Class defined at inter- face level bDeviceSubClass 0x00 Subclass defined at interface level bDeviceProtocol 0x00 None bMaxPacketSize0 0x20 32 idVendor a a. These fields can be customized with your own value 0x0FCF Dynastream Innovations, Inc. idProduct a 0x1008 0x1008 bcdDevice 0x0100 1.0 iManufacturer 0x01 1 iProduct 0x02 2 iSerialNumber 0x03 3 bNumConfigurations 0x01 1 Field Notes Value Description bLength 0x09 Valid bDescriptorType 0x02 CONFIGURATION wTotalLength 0x0020 32 bytes bNumInterface 0x01 1 bConfigurationValue 0x01 1 iConfiguration 0x02 2 bmAttributes. Reserved 0x00 Zero bmAttributes. RemoteWakeup 0x0 Not supported bmAttributes. SelfPowered 0x0 No, Bus powered bmAttributes. Reserved7 0x1 One bMaxPower 0x32 100 mA |
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