Freescale-semiconductor TWR-MCF52259-Ethenet Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Hardware Freescale-semiconductor TWR-MCF52259-Ethenet. Freescale Semiconductor TWR-MCF52259-Ethenet User Manual Manual do Utilizador

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TM
Freescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarks
of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc. 2006.
TWR-MCF52259-Ethenet
Hareesh S
Sr.FAE
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Resumo do Conteúdo

Página 1 - TWR-MCF52259-Ethenet

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 2 - Ethernet Overview Session

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 3

TMSoftware – General ConceptsThe General USB ProcessHow Does the Host Know a Device’s Requirements?Configuration Descriptor//-------------------------

Página 4 - Ethernet

TMSoftware – General ConceptsThe General USB ProcessHow Does the Host Know a Device’s Requirements?Interface Descriptor//-----------------------------

Página 5

TMSoftware – General ConceptsThe General USB ProcessHow Does the Host Know a Device’s Requirements?//-------------------------------------------------

Página 6

TMSoftware – General ConceptsThe General USB ProcessHow Does the Host Know a Device’s Requirements?Device DescriptorConfiguration DescriptorConfigurat

Página 7 - Connectors

TMSoftware – General ConceptsThe General USB Process1. Enumeration -Upon powering up, the host: queries all connected devices to determine the require

Página 8

TMSoftware – General ConceptsThe General USB ProcessHostWhat device class are you?Do you supply the power or do I?How many and of what type of endpoin

Página 9

TMSoftware – General ConceptsThe General USB ProcessHostWhat device class are you?Do you supply the power or do I?How many and of what type of endpoin

Página 10 - Requires using external PHY

TMSoftware – General ConceptsThe General USB ProcessInterrupt Transfer - Devices that send very little data such as mice or keyboards would choose thi

Página 11 - Full Duplex Ethernet Links

TMSoftware – General ConceptsThe General USB Process3. As the host enumerates each device it sets aside bandwidth for the devices that use the inte

Página 12 - Basic Ethernet Network

TMSoftware – General ConceptsThe General USB Process5. The available bandwidth is then divided into frames, and the host controls those frames which

Página 13 - Basic Ethernet Bus

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 14 - Collisions

TMSoftware – General ConceptsThe General USB ProcessFrames in More DetailEach frame begins with a Start of Frame packet followed by the hosts transact

Página 15 - Can bypass not connected

TMSoftware – General ConceptsThe General USB ProcessPackets in More DetailPackets are a block of information with a defined data structure. The packet

Página 16

TMSoftware – General ConceptsThe General USB ProcessPackets Associated with Each Type of TransferDataTokenData (IN or OUT)IsochronousHandshakeDataToke

Página 17 - Ethernet Router/Gateway

TMSoftware – General ConceptsUSB Signaling• USB uses Non-Return to Zero, Inverted signaling– Separate clock signal not required to be delivered with d

Página 18 - Typical MII Interface

TMSoftware – General ConceptsAPI Calls:What happens after enumeration?After enumeration the device is ready to perform the function it was designed fo

Página 19 - *Autonegotiation

TMSoftware – General ConceptsAPI Calls:What happens after enumeration?Commonly used API calls for host devices:•host_init()•host_stop()•host_reset_bus

Página 20 - IEEE 802.3 Data Frame

TMSoftware – General ConceptsAPI Calls:What happens after enumeration?Commonly used API calls for devices:

Página 21 - Terminology

TMSoftware – General ConceptsAPI Calls:What happens after enumeration?Note to reviewers…. what happens behind the scenes (after enumeration) between t

Página 22 - Ethernet Definition…

TMSoftware – General ConceptsNote to reviewers….A short introduction to the demos should go here.

Página 23 - More Ethernet References

TMSoftware – General ConceptsNote to reviewers….Here should be a short discussion of what the programmer would have to do to modify the code in the De

Página 24

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 25 - IP Classes

TMIntroduction to USBComplimentary SW for the MCF522xx Family of Microcontrollers:•USB Basic Device Controller•HID device layer for the USB driver– Ge

Página 26 - IP Subnetting

TMUSB TopologyIntroduction to USBTMUSB Device •Reliable Bootloader •Embedded Pipe •Mass Storage (for attached SD card or similar) •FAT file System (f

Página 27 - IPv4 network classes

TMUSB TopologyIntroduction to USBIntroduction to USBAppendix AUSB On-the-Go

Página 28

TMUSB TopologyIntroduction to USBAppendix A USB On-the-GoUSB On-the-Go: What is it?Remember that previously we said that USB:1. can be implemented as

Página 29 - Default Gateway

TMUSB TopologyIntroduction to USBUSB On-the-Go: What is it?By 2001, there was a proliferation of peripheral devices that could be interconnected and p

Página 30

TMUSB TopologyIntroduction to USBUSB On-the-Go: What Applications would use it?OTG Device inPeripheral modeSame OTG Devicein host modeAbove is a typic

Página 31

TMUSB TopologyIntroduction to USBUSB On-the-Go: How does it work?To implement OTG, two new protocols were added in the USB 2.0 addendum. These new pro

Página 32

TMUSB TopologyIntroduction to USBUSB On-the-Go: Initial declarationAppendix A USB On-the-GoD+D-VBUSGNDIDMini-A plugMini-B plugDual-role DeviceDual-rol

Página 33 - The OSI 7 Layer Model

TMUSB TopologyIntroduction to USBUSB On-the-Go: Negotiation processAppendix A USB On-the-GoSRP (Session Request Protocol) NegotiationsOTG-B (device) a

Página 34 - Some Interesting RFC’s

TMUSB TopologyIntroduction to USBUSB On-the-Go: Negotiation processAppendix A USB On-the-Go1. OTG-A (host) enables OTG-B (device) to become host by se

Página 35

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 36 - ColdFire MCU Roadmap

TMUSB TopologyIntroduction to USBUSB On-the-Go: Negotiation processAppendix A USB On-the-Go6. To return control back to OTG-A (host) , OTG-B (devic

Página 38 - MCF52259 –FEC features

TMFreescale USB Solutions

Página 39 - MCF52259-FEC Fetures

TMThe USB Controller Continuum. Only from Freescale.• USB is becoming the standard in Consumer and Industrial applications• Designers want a “one stop

Página 40

TM• EDN China 2008 Innovation Award • winner of the Consumer Electronics IC category• MCF51JM128 •“A panel of distinguished judges, representing a cro

Página 41 - MCF5223x - ePHY

TMUSB Solutions (Low/Full Speed, Device, Host, OTG)MC9S08JS16/8

Página 42 - Complete Ethernet Solution

TMMCF52259 USB features• Dual Mode USB Controller• USB 1.1 and 2.0 complient full speed device controller• 16 bi-directional end points• DMA or FIFO d

Página 45 - Freescale Complete Solution

TMLABs• LAB1 – HID ( Device operation)• LAB2 – CDC ( Device Operation)• LAB3 – MSD( Host Operation)• LAB4 – HID (Host Operation)

Página 46 - Protocols

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 47 - What is Freescale MQX?

TMLAB1 – HID ( Human interface device)• In this Lab the MCF52259 board (USB) will control the PC curser.• Install the “Coldfire_USB_Lite.exe” file, •

Página 48

TMProject file - HID Drag the *.mcp file to code warrior

Página 49 - TCP/IP stack overview

TMProject file detailsProject files details

Página 50 - TCP/IP stack structure

TMCompiling and flash programmingMake-Step1Flash programmer-Step2

Página 51 - More details about the stack

TMFlash selectionSelect load settings- Step1Load the MCF52259 flash xml file- Step2

Página 52

TMFlash selectionProper configuration chosen

Página 53 - Ethernet LABs

TMFlash ErasingFlash erase

Página 54

TMFlash ErasingFlash Erase

Página 55 - Directory Structure

TMFlash programming.Program the code

Página 56

TMOutput of the Lab• Insert the USB Cable to MiniA connector on the peripheral board and other side to your system USB port.• Reset the board.• Look a

Página 57 - Project file

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 59

TMLAB2-CDC• This LAB will demonstrate the USB to serial and visa versa communication.• Open the project file from the installed folder.– D:\Profiles\r

Página 60

TMPC side drive file installationDriver file installationChoose the second option

Página 61

TMPC-side driver file installationLocation

Página 62 - Compiler the code

TMUSB driverUSB detected

Página 63 - Flash progamming

TMCOM Port at System sideUSB commport numberStep1 – device manager

Página 64 - Flash file selection

TMHyper terminal for USB• Open the Hyper terminal • Select the USB port.• Set the baud rate -19200• Data bit -8 • Parity -None• Stop bit- NO

Página 65 - Erase and program the flash

TMHyper terminal for UART• Open one more Hyper Terminal • Set the Baud rate 19200• Type the character in one terminal, This shold be displayed in othe

Página 68 - Commands

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 69 - Setting IP address at PC side

TMLAB3 – MSD(HOST)• In this LAB will achieve reading and writing to thumb drive. This will demonstrate the Host functionality.• Open the Lab from the

Página 70 - MCF52259 board to PC

TMReset the boardMessage from the board after reset

Página 71 - IP Address changing

TMType Help Command details

Página 72

TMUSB thumb driver detectedAfter thumb driver inserting the detection message

Página 73

TMThumb drive contents.

Página 74 - LAB3 – Web server

TM• AN3560.pdf page 21– for the USB operation

Página 76 - Webserver demo

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 77

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 78 - TWR-MCF52259-USB

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 79 - This module contains

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 80

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 81 - In This Section:

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 82 - Introduction to USB

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 83

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 84

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 85

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 86

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 87

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 88

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 89 - Software

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 90

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 91

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 92

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 93

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 94

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 95

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 96

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 97

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 98

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 99

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 100 - Software – General Concepts

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 101

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 102

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 103

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 104

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 105

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 106

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 107

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 108

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 109

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 110

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 111

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 112

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 113

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 114

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 115

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 116

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 117

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 118

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 119

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 120 - Introduction To USB

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 121 - Advanced Topics

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 122 - Appendix A

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 123 - USB On-the-Go:

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 124

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 125

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 126

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 127

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 128

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 129

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 130

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 131

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 132 - Freescale USB Solutions

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 133 - Freescale

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 134 - • MCF51JM128

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 135 - MC9S08JS16/8

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 136 - MCF52259 USB features

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 137

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 138

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 139 - • LAB3 – MSD( Host Operation)

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 140

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 141 - Project file - HID

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 143 - Flash programmer-Step2

TMTWR-MCF52259-USBApril 7, 2010Hareesh SSr.FAE

Página 144 - Flash selection

TM• Introduction to USB• Basic Operation of USB hardware and software• USB Data Structures for K2/3u• USB API Calls for K2/3uThis module contains:Modu

Página 145

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 146 - Flash Erasing

TMIntroduction To USB

Página 147

TMMotivation for the USB StandardHistory and Evolution of USBUSB TopologyUSB ConnectorsIntroduction to USBIn This Section:

Página 148 - Flash programming

TM• an alternative to Apple’s 1394 digital link standard (FireWire )• a fast, bi-directional, low-cost, dynamically attachable serial interface• that

Página 149 - Output of the Lab

TM• and adds true plug-and-play attributes for a wide range of devices simultaneously• with minimal or no user intervention required for configuration

Página 150

TMHistory and EvolutionUSB 1.0 SpecificationIntroduction to USB19951996199820002001USB group formed USB 1.1 SpecificationUSB 2.0 SpecificationUSB On-t

Página 151 - LAB2-CDC

TMIntroduction to USBUSB 2.0 High-speedUSB 1.1 Full-speedUSB 2.0 Full-speedUSB 1.1 Low-speedUSB 2.0 Low-speedSpecVast bandwidth improvementsVideo, sto

Página 152 - Choose the second option

TMUSB TopologyIntroduction to USB• Single Host – The host controls communication with each device• Up to 127 devices can be attached• Devices are one

Página 153 - Location

TMHubUSB TopologyHubHostRoot HubIntroduction To USBTopologyHub- Tiered StarHub

Página 154 - USB driver

TMIntroduction to USBA-connector (upstream)B-connector (downstream)USB Standard ConnectorsHubHubBBBAAHubBBAAARoot HubBAABBAABBAConnector typesIntroduc

Página 155 - COM Port at System side

TMUSB TopologyIntroduction to USBSoftwareGeneral Concepts

Página 156 - Hyper terminal for USB

TMFreescale Semiconductor Confidential and Proprietary Information. Freescale™ and the Freescale logo are trademarksof Freescale Semiconductor, Inc. A

Página 157 - Hyper terminal for UART

TMSoftware – General Concepts How Data is Transferred in USB How Does the Host Know the Device’s Requirements? The Enumeration Process: What happen

Página 158

TMThe General USB ProcessHow Data is Transferred in USBFrameTransfer 1TransactionStart of FrameTransfer 2Transaction 1Packet 1Packet 2Packet 3Transact

Página 159

TMSoftware – General ConceptsThe General USB ProcessHow Data is Transferred in USBFrames are made up of transfers, which are made up of transactions,

Página 160 - LAB3 – MSD(HOST)

TMSoftware – General ConceptsThe General USB ProcessHow Data is Transferred in USBFrameTransfer TransferThere are 4 types of data transfer:1. Interrup

Página 161 - Reset the board

TMSoftware – General ConceptsThe General USB ProcessHow Data is Transferred in USBEach transfer can contain multiple transactions and a transaction ca

Página 162 - Type Help

TMSoftware – General ConceptsThe General USB ProcessHow Data is Transferred in USBFor each transaction there are three types of packets that communica

Página 163 - USB thumb driver detected

TMSoftware – General ConceptsThe General USB ProcessHow Does the Host Know a Device’s Requirements?When a USB device is plugged into a USB port the ho

Página 164 - Thumb drive contents

TMSoftware – General ConceptsThe General USB ProcessHow Does the Host Know a Device’s Requirements?These requirements are communicated to the host thr

Página 165

TMSoftware – General ConceptsThe General USB ProcessHow Does the Host Know a Device’s Requirements?This hierarchy of the most commonly used descriptor

Página 166

TMSoftware – General ConceptsThe General USB ProcessHow Does the Host Know a Device’s Requirements?Device DescriptorSince the device descriptor repres

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