'Configuration descriptor' diaporamas de présentation

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A Seminar on USB: Universal Serial Bus By Alok K. Watve M.Tech. (IT) 2 nd yr.

A Seminar on USB: Universal Serial Bus By Alok K. Watve M.Tech. (IT) 2 nd yr. Why USB? Much higher data rate compared to other data communication protocols (such as RS 232, parallel ports) USB 1.1 - 1.5 Mbps / 12 Mbps USB 2.0 - 1.5 Mbps / 12 Mbps / 480 Mbps

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case TYPE_CONFIGURATION_DESCRIPTOR:

if(Irq & D11_INT_EP2_OUT) { printf("EP2_OUT r"); D11CmdDataRead(D11_READ_LAST_TRANSACTION + D11_ENDPOINT_EP2_OUT, Buffer, 1); Buffer[0] = 0x01; /* Stall Endpoint */ D11CmdDataWrite(D11_SET_ENDPOINT_STATUS + D11_ENDPOINT_EP2_OUT, Buffer, 1); }

208 views • 14 slides

USB Protocol

USB Protocol. CET 316 By John C. Johnston. USB Programming. Enumeration Descriptors Descriptors Device Descriptor Configuration Descriptor Interface Descriptor HID descriptor Report Descriptor Endpoint Descriptor Data Transmission to host. USB Protocol. USB Protocol. USB Protocol.

483 views • 12 slides