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Rev. 0.5 7/13

Copyright © 2013 by Silicon Laboratories

CP2102-EK

C P 2 1 0 2 - E K

C P 2 1 0 2   E

V A L U A T I O N

  K

I T

  U

S E R

S

  G

U I D E

1.  Kit Contents

The CP2102 Evaluation Kit contains the following items:



CP2102 Evaluation Board



RS232 Serial Cable



USB Cable



DVD



Quick Start Guide

2.  Relevant Documentation

Application notes can be found on the Interface Application Notes page 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 CP2102 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.



AN571: CP210x Virtual COM Port Interface

 — USB interface details for CP210x devices.

3.  Software Setup

The Software Development Kit (SDK) for the 

CP2102

 kit is included on the kit DVD. 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 (AN220) 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 package. Follow the instructions 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 device 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

.

Further installation instructions for the WinCE drivers can be found in the 

ReadMe.txt

 file contained inside the

driver package. 

Summary of Contents for CP2102

Page 1: ...Port VCP Drivers Software Driver Customization Utility AN220 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 package Follow the instructions to install the SDK and drivers to the system 3 1 USBXpress Driver Development Kit The Silicon Laboratories USBXpress De...

Page 2: ...he PC 2 Connect the other end of the USB cable to the USB connector on the CP2102 evaluation board 3 Connect one end of the RS232 serial cable to the DB 9 connector on the CP2102 evaluation board 4 Connect the other end of the RS232 serial cable to the target serial device Figure 1 Hardware Setup CP2102 EK Serial Device RS232 CP2102 USB to UART Bridge USB 1 2 3 4 ...

Page 3: ...he reference point of both the host application and the serial device and it can support serial device control requests defined in the Microsoft Win32 Communications API Examples for how to communicate with the device as a serial COM port are included in AN197 on the www silabs com interface appnotes page or in the SDK If the USBXpress drivers are used the CP2102 will appear as a USB USBXpress dev...

Page 4: ...arious I O connectors J1 DB9 connector for RS232 interface J2 UART signal access connector J3 USB connector for USB interface J4 Not used D1 SUSPEND indicator LED Figure 3 CP2102 Evaluation Board 6 1 Universal Serial Bus USB Interface J3 A Universal Serial Bus USB connector J3 is provided to facilitate connections to the USB interface on the CP2102 See Table 1 for the USB pin definitions Table 1 U...

Page 5: ...criptions Table 2 RS232 Pin Descriptions Pin Signal CP2102 Direction Description 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 3 J2 Pin Descriptions Pins Signal CP2102 Direction Description 1 2 TXD Outp...

Page 6: ...CP2102 EK 6 Rev 0 5 7 Schematic SUSPEND LED CP2102 Figure 4 CP2102 Evaluation Board Schematic ...

Page 7: ...oftware 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 CP2102 Software Interface for the Device Manager window after correct installation of driver software Revision 0 3 to Revision 0 4 Updated 3 Software Setup on page 1 Revision 0...

Page 8: ...umes no responsibility for errors and omissions and disclaims responsibility for any consequences resulting from the use of information included herein Additionally Silicon Laboratories assumes no responsibility for the functioning of undescribed features or parameters Silicon Laboratories reserves the right to make changes without further notice Silicon Laboratories makes no warranty rep resentat...

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