USB Interface, USB Descriptors | Cypress CY4672 specs

Bridge

5.3.12Code Performance Analysis

A keyboard report processing is used to analyze the code performance. A typical keyboard report processing contains the following steps:

■The bridge receives the keyboard report packet and process the packet. This step takes 108 µs.

■MCU calls function handle_keyboard_report() to format USB packet and load this packet into the endpoint buffer. This function consumes 118 µs.

As a result, it takes 226 µs for the bridge to process a keyboard report.

5.4USB Interface

5.4.1USB Descriptors

The USB Descriptors can be viewed/edited with the USB Setup Wizard.

88	CY4672 Reference Design Guide, Document # 001-16968 Revision **

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Cypress CY4672 manual USB Interface, USB Descriptors

Contents

CY4672 Reference Design Guide Copyrights Disclaimer Contents 2.3 Programmable Interval Timer User Module 2.4 2.12.2 4.1 9.2 9.19.3 2.4 1 Millisecond Interval Timer User Module 2.5 6.166.17 6.18 1.1 1.21.3 100 105 107108 109 Introduction ScopeChapter Overviews Support Definitions ConventionsAcronyms Rssi Introduction WirelessUSB Protocol General OverviewRadio Channel Management Pseudo Noise Codes Chip Error Correction Automatic Acknowledgment AutoACKNetwork ID Manufacturing ID Protocol Modes Channel Selection Algorithm Ping Mode Bridge Only Idle ModeBind Mode Reconnect KISSBind Mode Reconnect Mode HID only Idle Mode HID onlyButton Bind Mode Enhanced KISSBind Slave Unbind Data ModeBack Channel Data Support Back Channel Transaction Sequence Dynamic Data Rate and Dynamic PA Dynamic Data Rate Packet Structures Bind/KISSBind Request Packet HID Bind Response Packet Bridge Connect Request HIDConnect Response Packet Bridge Device Type Data Packet/Back Channel Data Packet Bridge and HID Ping Packet BridgeData Byte 0-N This is byte-aligned application data Bind and Reconnect Timing Bind Timing Diagram Signature Byte Device Encryption TEA Key Management over WirelessUSBTEA Encryption AES Encryption TEA Encryption Key Management Encryption and Power Consumption Trade Off AES Key Management WirelessUSB Protocol Design Features RDK Mouse AssemblyMouse Introduction Bottom View Bind Button and On-Off Switch Hardware Block Diagram Schematics PRoC LP Device Configuration Firmware ArchitectureHardware Considerations 1 ROM/RAM Usage CYRF69103 Device Architecture Global Configuration SPI Master User Module Model Programmable Interval Timer User ModuleFlash Security Common Code Generated Library CodeDebounce Module SPI Module Timer Module Radio DriverProtocol Module Flash Module ISR Module Application CodeMouse Module Optical Module Testmode Module Mfgtest Module Buttons ModuleWheel Module Configuration Options Battery Module Platformh MOUSE800NOT400CPIMfgtestcode Mfgtxmodes Wireless Protocol Data Payload Platform and Architecture PortabilityInitialization Kissbind Interrupt usage and timing Packet Format9.2 Packet Format Byte Code Performance Analysis Development EnvironmentTools Watchdog Timer Tips and TricksCritical Test Points 2.1 M8C Sleep Keyboard RDK Keyboard Assembly Keyboard Plastic Radio and PSoC Board PDC-9265 Schematic Bind Button Keyboard Matrix Row Total ROM Total RAM Bytes EnCoRe II Device ConfigurationBuild Option ROM Usage RAM Usage Bytes Microcontroller Device Architecture This parameter is set to Enable This parameter is set to DisableThis parameter is set to Tcap This parameter is set to ‘1’ Reset Isr TimerApplication Keyboard Module Test Module Keyboardkeepalivetimeout Encrypt Module Encrypttea TimercalEncryptaes Mouseemulationmode Keyboard Application Report Formats Byte Name 0xFCModifier Reserved Scan Code Keys 0x00 0x04 Modifier Reserved Scan Code Keys 0x00 Application Report Power Key Scan Ghost Key Detection Interrupt Usage / Timing Code Performance Analysis Modifying the Keyboard Matrix or Adding New Keys Modifying the Keyboard MatrixAdding New Keys Build the firmware, the new key ‘My Computer’ will work RDK Keyboard with POD Installed 10. RDK Keyboard Test Points Bridge Bridge Photographs In-System Programming Schematics LED Usage RDK Bridge with USB Adapter and PSoC MiniProg Total ROM Bytes Total RAM Bytes Build Option ROM Usage Bytes RAM Usage Bytes CYRF69213 Device Architecture This parameter is set to 1Hz This parameter is set to 4.44 4.53 2.4 1 Millisecond Interval Timer User Module USB Device User Module PSoC Generated Library Code Modules consist of the common code logical grouping Timer FlashMaster Protocol Bridge Module USB Module Mfgtestcode Powerbind Dalenable Suspend and Remote Wakeup Interrupt Usage/TimingPolling method is used for the Bind button Parameter Icc Units USB Interface USB Descriptors Device/Config Descriptors Keyboard HID Report Descriptor Mouse/Keyboard HID Report Descriptor Keyboard HID Report Descriptor Endpoint Bridge Keyboard power keys use Report ID Keyboard Report Format Keyboard Endpoint EP1 Reserved Standard Key Wheel Battery Level and Link Quality Reports Mouse Report FormatMouse Endpoint EP2 Report ID Unused Usage ID Usage Name Requesting a New Battery Reading Obtaining the RadioParams Report Example USB Bus Analyzer Catc Traces 17. Example keyboard Catc Trace Standard and MM Keys 18. Example Mouse Catc Trace 19. Example Keyboard Catc Trace Power Key Key Up Development and Debug Environment Few of ways for working with the kit are the following Manufacturing Test Support, MTK MTK Block DiagramMTK Serial Protocol Command Command Description Serial Command ProtocolSerial Response Protocol Accessing MTK in the DUT Serial Port Parameter SettingsMTK RF Protocol MTK DUT Source Code Porting Manufacturing Test Support, MTK Regulatory Testing Results Test Parameter FCC Limit Measured Value Margin Regulatory Testing Results Power Considerations Operation Mode Icc mA with Average Icc Supply Voltage =RDK Keyboard Usage Model Mode Hrs/day Days Average Icc mA Charge mAh Battery Life CalculationsRDK Mouse Active mode-Move the mouse in a circle on white Paper Power Considerations Software Code Modules Software GuideUSB HID API module CHidDeviceClass Methods CHidDevice Class MethodsMethod Type Description CHidManager Class Methods CHidManagerClass Methods CCySysTray Class Methods System Tray ModuleCCySysTray Methods WirelessUSB System Tray Application Module CWirelessUSBTrayApp Class Methods OnStopTimer Public This method stops the timer OnTimer CMainFrame Class Methods CWirelessUSBStatusPropertyPage Class Methods CWirelessUSBStatusPropertySheet Class Methods CHidTrayDevice Class Methods CHidTrayManager Class Methods Appendix A. References + Feedback Index Numerics LED Pseudo noise codes 13, 14 PSoC Designer generated files Index Revision History + Feedback