Руководство по эксплуатации Silicon Laboratories CP2112-EK

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CP2112-EK
CP2112 EVALUATION KIT USER’S GUIDE
1. Kit Contents
The CP2112 Evaluation Kit contains the following items:
 CP2112 Evaluation Board
 CP2112 Product Information CD-ROM. CD contents include:
Example Windows and Mac Applications
Documentation:
CP2112 Data Sheet
CP2112 Evaluation Kit User's Guide
AN495: CP2112 Interface Specification
AN496: CP2112 HID USB-to-SMBus API Specification
 USB Cable
2. Software Setup
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The included CD-ROM contains the example applications for P

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CP2112-EK 4. CP2112 Windows Application The HIDSMBus Example application uses the Windows CP2112 HID-to-SMBus DLL to transmit and receive data with the CP2112. The application also has access to the CP2112’s GPIO pins. The HIDSMBus Example application is installed as part of the CD installation process. Figure 2 shows a screenshot of the Windows Application. The following steps describe how to start the application and use some of its features. 1. Ensure that the hardware is connected to a Wind

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CP2112-EK 6. Figure 3 shows the Data Transfer tab, which allows you to transfer read and write data over the SMBus. 7. To Read data from an SMBus device (non-addressed mode): a. Enter the slave address in the “Read Request” box and the number of bytes to read. After this, click “Read Request” (shown in red). b. To see the number of bytes that were read back, click “Get Read/Write Transfer Status”, and verify the number of bytes read at the bottom of the application (show in blue). c. Next, cli

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CP2112-EK 10. Figure 4 shows the Pin Configuration tab, which allows you to configure the GPIO and Special Functions (TX Toggle, RX Toggle, and Clock Output). a. GPIO pins toggle between Input/Ouput and Open-Drain/Push-Pull by clicking the corresponding GPIO boxes in the “GPIO Configuration” section. The boxes for TX Toggle, RX Toggle, and Clock Output can be checked to enable the Special Functionality. The “Set GPIO Config” button must be clicked in order for the settings to change. b. The “

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CP2112-EK 11. Figure 5 shows the Customization tab, which allows you to program the One-Time-Programmable (OTP) parameters of the device. The parameters that are programmed with this tab can only be programmed once and cannot be changed back to their default values after being programmed. This tab has the same functionality as the CP2112SetIDs application in the software in “AN144: CP210x/CP211x Device Customization Guide”. In order for these parameters to be sucessfully programmed, there mu

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CP2112-EK 5. Target Board The CP2112 Evaluation Kit includes an evaluation board with a CP2112 device pre-installed for evaluation and preliminary software development. Numerous input/output (I/O) connections are provided to facilitate prototyping using the evaluation board. Refer to Figure 6 for the locations of the various I/O connectors. Refer to Figure 7, “CP2112 Evaluation Board Schematic” for information regarding the SMBus pull-up resistors that are located on the target board. P1 USB co

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CP2112-EK 5.2. Universal Serial Bus (USB) Interface (P1) A Universal Serial Bus (USB) connector (P1) is provided to facilitate connections to the USB interface on the CP2112. See Table 2 for the USB pin definitions. Table 2. USB Connector Pin Descriptions Pin # Description 1 VBUS 2D- 3D+ 4 GND (Ground) 5.3. SMBus Signals (TB1, H1) The SMBus interface terminal block and access headers are included to easily interace SMBus devices to the evaluation board. The terminal block can be used to connec

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CP2112-EK 6. Schematic 8 Rev. 0.2 Figure 7. CP2112 Evaluation Board Schematic

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CP2112-EK DOCUMENT CHANGE LIST Revision 0.1 to Revision 0.2  Updated Figure 1.  Updated "4. CP2112 Windows Application" on page 2. Instructions and figures from updated PC application  Updated Figure 7 on page 8. Rev. 0.2 9

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CP2112-EK CONTACT INFORMATION Silicon Laboratories Inc. 400 West Cesar Chavez Austin, TX 78701 Tel: 1+(512) 416-8500 Fax: 1+(512) 416-9669 Toll Free: 1+(877) 444-3032 Please visit the Silicon Labs Technical Support web page: https://www.silabs.com/support/pages/contacttechnicalsupport.aspx and register to submit a technical support request. The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice. Silicon Labo