Silicon Laboratories Stepper Machine Especificações Página 32
- Página / 68
- Índice
- MARCADORES
- USB Overview 1
- Advantages of USB 3
- Some USB Terms 4
- What is USB? 5
- USB Lower Layer 6
- Attach Event 7
- Packet Identifiers (PID) 8
- 5478Bits 9
- CRCEndpointAddressPIDField 9
- Transactions 10
- What is a Transfer? 11
- Transfer Format 12
- USB Transfers—A Closer Look 13
- Data error 14
- Isochronous transfer 18
- I Have to Know All of This? 20
- What happens when all of 22
- USB Middle Layer 23
- USB—Chapter 9 24
- Enumeration 25
- Enumeration: Finding a Driver 26
- USB Descriptors 27
- USB Descriptors Types 28
- SubClass1bDeviceSubClass5 29
- Class1bDeviceClass4 29
- BCD2bcdUSB2 29
- Constant1bDescriptorType1 29
- Number1bLength0 29
- Device Descriptor Example 31
- Getting the Descriptors 32
- Index or 33
- 2wIndex4 33
- Data format of 33
- Standard Request Exercise 35
- Standard Requests Example 36
- USB—Device States (1 of 3) 37
- USB—Device States (2 of 3) 38
- USB—Device States (3 of 3) 39
- Device Classes 40
- Human Interface Device (HID) 41
- Mass Storage (MSD) 42
- USB Firmware 45
- Device Descriptor Structures 46
- Code Flow—One Example 47
- Requirements 48
- Get help here 48
- Silicon Labs USB MCU Products 51
- Highly Integrated USB MCUs 52
- No need for emulators 53
- No external resistors 53
- Allows bus 53
- No external crystal 53
- CP210x family of devices 54
- USB Software Support 56
- —Features 57
- USB Development Solutions 58
- http://www.silabs.com/ERC 59
- http://www.silabs.com/mcu 59
- http://www.silabs.com/usb 59
- Appendix 60
- Enumeration 61
- Get_Descriptor (Device) 62
- More Enumeration 65
- USB Setting the Baud Rate 66
- We Use Our Bulk Endpoints 67
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