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Rev. 0.4 7/13 Copyright © 2013 by Silicon Laboratories CP2103-EK CP2103-EK CP2103 E VALUATION K IT U SER ’S G UIDE 1. Kit Contents The CP2103 Evaluation Kit contains the following items: CP2103 Evaluation Board RS232 Serial Cable USB Cable DVD Quick Start Guide 2. Relevant Documentation Application notes can be found on the Interface Application Notes pa ge for all fixed-function devices: www.silabs.com/interface-appnotes. AN721: CP210x/CP211x Device Customization Guide — Customize the VID, PID, serial number, and other parameters stored in the CP2103 EPROM. AN197: Serial Communications Guide for CP210x — Programming guide for using the Virtual COM Port (VCP) drivers. AN169: USBXpress Programmer’s Guide — Programming guide for using the USBXpress drivers. AN220: C8051F32x and CP210x USB Driver Customization — VCP or USBXpress driver customization tool. AN223: Port Configuration and GPIO for CP210x — Programming guide and DLL for runtime control of the CP2103 GPIO pins. AN571: CP210x Virtual COM Port Interface — USB interface details for CP210x devices. 3. Software Setup The Software Development Kit (SDK) for the CP2103 kit is included on the kit DV D. The latest version of this installer can also be downloaded from the www.silabs.com/interface-software website. This package includes: Device Customization Utility (AN721) Documentation — data sheet, application notes, user’s guide, quick start guide, etc. CP210x Virtual COM Port (VCP) Drivers Software — Driver Customization Utility (A N220) and programming examples The Windows installer should launch automatically after inserting the DVD. For Mac and Linux, browse to the appropriate directory on the DVD to install the software pa ckage. Follow the in structions to install the SDK and drivers to the system. 3.1. USBXpress Driver Development Kit The Silicon Laboratories USBXpress® Development Kit provides a complete host software solution for interfacing to CP210x devices. No USB protocol or host device driver expertise is required. Instead, a simple, high-level Application Program Interface (API) for the host software is used to provide complete USB connectivity. The USBXpress Development Kit includes Windows device drivers, Windows de vice driver installer, host interface function library (host API) provided in the form of a Windows Dynamic Link Library (DLL). See Application Note AN169, “USBXpress Programmer’s Guide” for detailed information on using the USBXpress drivers. The USBXpress drivers are available here: www.silabs.com/usbxpress. Click the USBXpress Development Kit link in the Download for Windows 2000/XP/Server 2003/Vista/Win7 section to download the USBXpress drivers. Run the installer and follow the steps to install the software to the desired
location. The default installation directory is C:\\SiLabs\\MCU\\USBXpress_SDK.
- CP2103 Hardware Interface
The evaluation board is connected to a PC as shown in Figure 1.
- Connect one end of the USB cable to a USB Port on the PC.
- Connect the other end of the USB c able to the USB connector on the CP2103 evaluation board.
- Connect one end of the RS232 serial cable to the DB-9 connector on the CP2103 evaluation board.
- Connect the other end of the RS232 serial cable to the target serial device.
Figure 1. Hardware Setup
- CP2103 Software Interface
and 2 are in use by other peripherals and applications, the CP2103 will use COM 3. device, and it can support serial device cont rol requests defined in the Microsoft Win32 ® Communications API. www.silabs.com/interface-appnotes page or in the SDK. If the USBXpress drivers are used, t he CP2103 will appear as a USB USBXpre ss device as shown in Figure 2. www.silabs.com/interface-appnotes page. Figure 2. CP2103 in Device Manager
the evaluation board. Refer to Figure 3 for the locations of the various I/O connectors. Figure 3. CP2103 Evaluation Board communications through the CP2103. Table 1 shows the LED corresponding to each header position. CP2103. See Table 2 for the USB pin definitions. Table 1. J5 and J6 LED Locations Table 2. USB Connector Pin Descriptions
1 VBUS
4 GND (Ground)
UART signals to J1. See Table 4 for J2 pin descriptions. LEDs and RS-232 Sipex Part) on the board. Table 3. RS232 Pin Descriptions
1 DCD Input Data Carrier Detect
2 RXD Input Receive Data
3 TXD Output Transmit Data
4 DTR Output Data Terminal Ready
5 GND Ground
6 DSR Input Data Set Ready
7 RTS Output Request to Send
8 CTS Input Clear to Send
9 RI Input Ring Indicator
Table 4. J2 Pin Descriptions
Figure 4. CP2103 Evaluation Board Schematic
Rev. 0.4 7 DOCUMENT CHANGE LIST Revision 0.1 to Revision 0.2 Updated CD-ROM contents in Section “1. Kit Contents” to correspond with versions 4.0 and later of the CP210x Drivers and Product Information CD- ROM. Updated Section “3. Software Setup” to include installation instructions for software included on versions 4.0 and later of the CP210x Drivers and Product Information CD-ROM. Added installation instructions for USBXpress Driver Development Kit in Section “3. Software Setup”. Added screenshots in Section “5. CP2103 Software Interface”, for the Device Manager window after correct installation of driver software. Revision 0.2 to Revision 0.3 Updated "3. Software Setup" on page 1. Revision 0.3 to Revision 0.4 Updated “1. Kit Contents” to change CD-ROM to DVD. Added “2. Relevant Documentation”. Updated “3. Software Setup” to point to the drivers on the website. Updated Figure 1 and Figure 2.
8 Rev. 0.4 CONTACT INFORMATION Silicon Laboratories Inc.
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