USB Complete: Everything You Need to Develop USB ... - PIC Vietnam

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Control Transfers: Structured Requests for Critical Data stage. The device hardware sends the data, detects the received ACK from the host, and triggers an interrupt. 4. If there is more data to send, the interrupt service routine configures the endpoint to send the data on receiving another IN token packet and steps 3 and 4 repeat. 5. On receiving an OUT token packet followed by a zero-length data packet, the endpoint returns ACK to complete the transfer. The Requests Table 5-1 summarizes USB’s eleven standard requests. Following the table is more information about each request. All devices must respond to these requests (though the response may be just a STALL). The values range from 00 to 0Ch, with some values unused. Most of the requests are in pairs, with each Set request having a corresponding Get or Clear request. The exceptions are Set_Address, Synch_Frame, and Get_Status. USB Complete 127
Chapter 5 Table 5-1: The USB specification defines eleven standard requests for Control transfers. Request Number Request Data source (Data stage) 00h Get_Status device device, interface, endpoint 01h Clear_Feature no Data stage 03h Set_Feature no Data stage 05h Set_Address no Data stage 06h Get_ Descriptor 07h Set_ Descriptor 08h Get_ Configuration 09h Set_ Configuration Recipient wValue wIndex Data Data Length (in Data (bytes) in Data stage (wLength) stage) device, interface, endpoint device, interface, endpoint device device address device device descriptor type and index host device descriptor type and index 0 device, interface, or endpoint feature device, interface, or endpoint feature device, interface, or endpoint 2 status – – – – 0 – – device or language ID device or language ID descriptor length descriptor length descriptor descriptor device device 0 device 1 configuration no Data stage device configuration device – – 0Ah Get_Interface device interface 0 interface 1 alternate setting 0Bh Set_Interface no Data interface stage interface interface – – 0Ch Synch_Frame device endpoint 0 endpoint 2 frame number 128 USB Complete
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USB Complete Everything You Need to
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Introduction xv Contents 1. USB Bas
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Interrupt Transfers 72 Availability
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Controllers that Interface to Exter
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Obtaining a Handle 303 Requesting a
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Performance Tips 426 Speed Consider
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Wireless Links 530 Cypress Wireless
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Introduction Introduction This book
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Introduction can help speed up the
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Introduction Others I want to thank
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USB Basics USB Basics 1 What if you
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Table 1-1: Comparison of popular co
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USB Basics power supply. In contras
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USB Basics large and small blocks o
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USB Basics are complete microcontro
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USB Basics Broadcasting. USB provid
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USB Basics you may be able to use o
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USB 2.0 USB Basics In this book, th
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USB Basics common peripherals such
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USB Basics multiple hubs in series,
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USB Basics data-acquisition unit. A
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TEAM FLY USB Basics Just about any
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USB Basics may support only low-pow
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USB Basics bus. While in the Suspen
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USB Basics Because the bus is share
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USB Basics Initial Decisions Before
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Inside USB Transfers Inside USB Tra
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Inside USB Transfers Figure 2-1: At
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Inside USB Transfers host with no 1
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Inside USB Transfers point addresse
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Inside USB Transfers Table 2-1: Eac
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Inside USB Transfers All Other Tran
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Inside USB Transfers phases. Data s
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Inside USB Transfers Table 2-3: The
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Inside USB Transfers full-speed dev
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Inside USB Transfers only thing a h
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Inside USB Transfers Table 2-4: The
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Inside USB Transfers A 2.0 hub may
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Inside USB Transfers how the CRC is
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Inside USB Transfers have two or th
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A Transfer Type for Every Purpose A
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A Transfer Type for Every Purpose F
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A Transfer Type for Every Purpose s
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A Transfer Type for Every Purpose t
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Availability Structure Data Size A
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TEAM FLY Speed A Transfer Type for
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A Transfer Type for Every Purpose O
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A Transfer Type for Every Purpose A
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Page 100 and 101: Data Size Speed A Transfer Type for
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Page 106 and 107: Enumeration: How the Host Learns ab
Page 120 and 121: Device_qualifier Descriptor Enumera
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Page 140 and 141: TEAM FLY Control Transfers: Structu
Page 144 and 145: Sent by: the host. Control Transfer
Page 150 and 151: Get_Status Control Transfers: Struc
Page 152 and 153: Set_Feature Control Transfers: Stru
Page 154 and 155: Get_Descriptor Control Transfers: S
Page 156 and 157: Get_Configuration Control Transfers
Page 158 and 159: Get_Interface Control Transfers: St
Page 160 and 161: Synch_Frame Control Transfers: Stru
Page 162 and 163: Chip Choices Chip Choices 6 When yo
Page 164 and 165: The USB Controller Chip Choices A t
Page 166 and 167: Chip Choices uration register may e
Page 168 and 169: Chip Choices are available both wit
Page 170 and 171: Device Requirements Chip Choices In
Page 172 and 173: Driver Choices Chip Choices The oth
Page 174 and 175: Chip Choices Figure 6-1: The USB I2
Page 176 and 177: Chip Choices Table 6-1: USB control
Page 178 and 179: Chip Choices transaction. The addre
Page 180 and 181: Chip Choices Table 6-2: Cypress Sem
Page 182 and 183: Table 6-3: An EZ-USB can run firmwa
Page 184 and 185: Cypress enCoRe II Chip Choices The
Page 186 and 187: Controllers that Interface to Exter
Page 188 and 189: TEAM FLY Chip Choices ware. Some mi
Page 190 and 191: Chip Choices hardware reset, the ch
Page 192 and 193: Chip Choices Architecture Both chip
Page 194 and 195: Table 6-6: Pinout of the FT232BM US
Page 196 and 197: Figure 6-2: For easy prototyping wi
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Device Classes Device Classes 7 Thi
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Device Classes Table 7-1: These cla
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Defined Classes Audio Device Classe
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Device Classes Figure 7-2: An Audio
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Device Classes bytes, and can provi
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Device Classes Table 7-3: The speci
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Device Classes Windows Support Unde
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Class-specific Requests There are t
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Device Classes Figure 7-5: A commun
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Device Classes Table 7-4: In the in
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Device Classes Table 7-6: A Functio
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Device Classes CSM-2 is DTCP, which
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Device Classes device is upgrading
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Human Interface Device Classes The
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Device Classes host sends a Get_Des
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Device Classes A USB IrDA bridge us
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Device Classes Each media type has
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Device Classes Table 7-8: The CSW c
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Printers Device Classes ATA/ATAPI d
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TEAM FLY Class-specific Requests Th
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Device Classes passes it on to Usbm
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Class-specific Requests There are f
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Device Classes the response, follow
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Device Classes information about in
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Device Classes Figure 7-8: A VideoS
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Device Classes the class’s requir
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Device Classes When using a USB/RS-
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Using a Generic Driver Device Class
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How the Host Communicates How the H
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Options for USB Devices How the Hos
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How the Host Communicates In kernel
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How the Host Communicates Figure 8-
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How the Host Communicates Perhaps b
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Communication Flow How the Host Com
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How the Host Communicates CyUsb.sys
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How the Host Communicates to a USB
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How the Host Communicates For faste
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How the Host Communicates Table 8-1
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Matching a Driver to a Device Match
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Matching a Driver to a Device Figur
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Matching a Driver to a Device Devic
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Matching a Driver to a Device a dev
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Matching a Driver to a Device Table
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TEAM FLY Figure 9-7: The service ke
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[Install.AddReg] HKR,,DevLoader,,*n
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Matching a Driver to a Device [Vers
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Matching a Driver to a Device Desti
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Matching a Driver to a Device which
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Matching a Driver to a Device [LAKE
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Matching a Driver to a Device Table
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Matching a Driver to a Device The I
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Matching a Driver to a Device renam
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Detecting Devices Detecting Devices
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Detecting Devices To use data retur
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Detecting Devices contains a stub f
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Detecting Devices application, the
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Detecting Devices ByRef and ByVal I
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Detecting Devices The DEVICE_NOTIFY
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Visual Basic The function has no re
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Detecting Devices ment contains a h
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This is the function’s declaratio
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This is the code to call the functi
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Detecting Devices next call. But be
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Visual Basic This is the function
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This is the function’s declaratio
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Detecting Devices cate, notify the
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Detecting Devices DeviceNotificatio
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TEAM FLY Detecting Devices When fin
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This is the code for the OnDeviceCh
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Detecting Devices The application c
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Detecting Devices Dim DeviceNameStr
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Human Interface Devices: Using Cont
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Get_Idle Human Interface Devices: U
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Set_Report Human Interface Devices:
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Human Interface Devices: Reports Hu
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Human Interface Devices: Reports Fi
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Human Interface Devices: Reports Th
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Human Interface Devices: Reports Ta
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TEAM FLY Human Interface Devices: R
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Human Interface Devices: Reports an
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0x15 0x00 // Logical Minimum 0x26 0
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Human Interface Devices: Reports As
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Physical Descriptors Human Interfac
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Human Interface Devices: Host Appli
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This is the declaration for the fun
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This is the code for doing an overl
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TEAM FLY Bulk Transfers for Any CPU
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Bulk Transfers for Any CPU Figure 1
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' Registers that relate to serial c
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Bulk Transfers for Any CPU ' Disabl
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Bulk Transfers for Any CPU ' If rea
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process_received_data: return Bulk
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Bulk Transfers for Any CPU Table 14
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Bulk Transfers for Any CPU Table 14
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Bulk Transfers for Any CPU a byte.
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Bulk Transfers for Any CPU The ’2
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FT2232C extensions Bulk Transfers f
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Hubs: the Link between Devices and
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Speed Hubs: the Link between Device
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Port Indicators Hubs: the Link betw
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TEAM FLY Managing Power Managing Po
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Managing Power hub’s connector. I
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Managing Power A high-power device
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Hub Power Managing Power Powering o
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Managing Power Figure 16-3: When a
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Ω μ Managing Power Figure 16-4: T
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Power Management under Windows Mana
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Managing Power work-arounds under W
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Tools Testing and Debugging 17 Test
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Testing and Debugging via USB or an
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Testing and Debugging Figure 17-3:
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Testing and Debugging requests alon
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Testing and Debugging The Chapter 9
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Testing and Debugging must meet add
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Signals and Encoding Signals and En
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Signals and Encoding defined by whe
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Signals and Encoding High-speed Dat
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Signals and Encoding Figure 18-1: I
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Signals and Encoding Bit stuffing c
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Signals and Encoding High speed’s
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Signals and Encoding Frame Number T
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TEAM FLY Purpose. Test the high out
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The Electrical Interface 19 The Ele
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The Electrical Interface Figure 19-
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The Electrical Interface The Circui
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The Electrical Interface alternativ
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The Electrical Interface handle all
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The Electrical Interface more than
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The Electrical Interface GND is the
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The Electrical Interface the height
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The Electrical Interface The USB sp
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Balanced Lines The Electrical Inter
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The Electrical Interface A low-spee
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The Electrical Interface A Wireless
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The Electrical Interface With both
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Dual-role Devices with USB On-The-G
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The OTG Descriptor Dual-role Device
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Index TEAM FLY Page numbers in ital
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Freescale MCF5482 ColdFire, 164 Mic
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WirelessUSB, 530-1, 532, 533 D D2XX
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tools for testing and debugging, 47
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GUIDs (Globally Unique Identifiers)
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support as necessary element for US
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Logical Maximum item, 362, 364-5 Lo
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vs. USB, 3 PCs. See also host compu
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RS-232 interface converters for, 11
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transceivers full-speed, 508-12, 51
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using Windows API functions in appl
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