CP2105 Evaluation Kit User's Guide
Contents
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3. Press the Install CP21xx Tools button on the main installation panel to access CP210x Virtual COM Port Drivers for Windows Virtual COM Port drivers for Linux and Mac operating systems are located on the CD but are not installed automatically See the following sections for installation instructions on your specific operating system 2 1 1 Virtual COM Port Driver Installation for Windows The VCP driver installation process for Windows is a two phase process First the files needed for the driver installation are unpacked to a location on the computer Next the unpacked files are used to install the Virtual COM Port driver 1 Press the Install CP21xx Tools button on the main installation panel to access CP210x Virtual COM Port Drivers for Windows 2 Choose the option for your kit 3 Selecting the Install CP210x Drivers option will run an unpacker utility that will install files to the specified path 4 If the Launch the CP210x VCP Driver Installer option was selected during the unpacking phase the driver installer will take the files that were installed during the unpacking phase and use them for installation If the Launch the CP210x VCP Driver Installer option was not selected the driver installer can be run by browsing to the location where the files were unpacked and running CP210xVCPinstaller exe The default unpacking location is C SiLabs MCU CP210x Windows 5 To complete the installati
4. CP2105 EK SILICON LABS CP2105 EVALUATION KIT USER S GUIDE 1 Kit Contents The CP2105 Evaluation Kit contains the following items m CP2105 Evaluation Board m CP210x Drivers and Product Information CD ROM CD content includes e CP210x Virtual COM Port Drivers for Windows Linux and Mac e USBXpress Driver Development Kit for Windows e Documentation e CP2105 Data Sheet e CP2105 Evaluation Kit User s Guide e Two RS232 Serial Cables e USB Cable 2 Software Setup The included CD ROM contains the Virtual COM Port Drivers USBXpress Driver Development Kit and additional documentation Insert the CD ROM into a system s CD ROM drive If using a Windows PC an installer will automatically launch allowing you to install the software or read documentation by clicking buttons on the Installation Panel If the installer does not automatically start when you insert the CD ROM run autorun exe found in the root directory of the CD ROM Refer to the ReleaseNotes CP21xx CD txt file on the CD ROM for the latest information regarding versions and known problems and restrictions If a non Windows PC is used manually browse to the directory on the CD ROM that contains the software for your OS The instructions in this document assume a Windows PC is being used In the installation application select the options for your kit The sections below include more information on the software being installed 2 1 Virtual COM Port Driver Installation
5. RT Signals P2 P3 J1 J6 Two RS232 transceiver circuits and DB 9 connectors P2 P3 are provided on the evaluation board to connect the CP2105 virtual serial ports to external serial devices See Table 3 for the RS232 P2 and P3 pin descriptions The J2 and J6 connectors are provided to facilitate direct access to the CP2105 s UART signals Shorting blocks on J1 are required to connect the Standard UART signals to P2 and the shorting blocks on J6 are required to connect the Enhanced UART signals to P3 See Table 4 for J1 and J6 pin descriptions Table 3 RS232 Pin Descriptions Pin Signal Raz 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 4 J1 J6 Pin Descriptions Pins Signal Description 1 2 TXD Output Transmit Data 3 4 RXD Input Receive Data 5 6 DTR Output Data Terminal Ready 7 8 RI Input Ring Indicator 9 10 DCD Input Data Carrier Detect 11 12 DSR Input Data Set Ready 13 14 CTS Input Clear to Send 15 16 RTS Output Request to Send Rev 0 4 SILICON LABS CP2105 EK 5 4 Power Connector J4 This header J4 is included on the evaluation board to provide several power options The following describes the functions o
6. USB connector on the CP2105 evaluation board 3 Connect one end of the RS232 serial cable to one of the DB 9 connectors on the CP2105 evaluation board 4 Connect the other end of the RS232 serial cable to the target serial device 5 Repeat Steps 3 and 4 using a second RS232 serial cable and the unused DB 9 connector on the CP2105 evaluation board Serial USB CP2105 Device Eval Board PC Serial USB Port Device Figure 1 Hardware Setup 4 CP2105 Software Interface If the Virtual COM Port drivers are used the CP2105 will appear as two COM ports in the Device Manager as shown in Figure 2 The CP2105 will always use the lowest available COM port for operation For instance if COM Ports 1 through 3 are in use by other peripherals and applications the CP2105 will use COM 4 and COM 5 The CP2105 functions identically to a COM port from the 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 If the USBXpress drivers are used the CP2105 will appear as two USB USBXpress devices as shown in Figure 2 Device Manager Device Manager File Action View Help File Action View Help 2 m amp Rm S 000009865 2 Computer TY Z Computer T ze Disk drives Se Disk drives Display adapters Display adapters 3 DVD CD ROM drives Y 3 DVD CD ROM drives da Human Interface Devices ig Human Interfa
7. Updated 2 Software Setup on page 1 Rev 0 4 SILICON LABS CP2105 EK NOTES Rev 0 4 9 SILICON LABS CP2105 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 Silicon Laboratories Silicon Labs and USBXpress are trademarks of Silicon Laboratories Inc Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders 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 Laboratories assumes 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 resentation or guarantee regarding the suitability of its products for any particular purpose nor does Silicon Laboratories assume any liability arising out of the application or use of any product or cir
8. access connector GPIO access connector Power connector Standard UART signal access connector SUSPEND LED source connector Green GPIO LEDs Red SUSPEND indicator LED CP2105 EK J2 P3 paas 250 69 Transceiver OD Enhanced pe eol lt Pin 2 J8 Moog CP2105 051 6 SUSPEND LED DSS 6 RS232 Transceiver Pin 1 J3 p Standard pe e_o lt x S Pin 2 J1 J4 ke eje oo DS4 6 Figure 3 CP2105 Evaluation Board with Default Shorting Blocks Installed 5 1 LED Headers J2 J3 Connectors J2 and J3 are provided to allow access to the GPIO pins on the CP2105 when in GPIO mode Place shorting blocks on J2 and J3 to connect the GPIO pins to the five green LEDs DS0 DS4 These LEDs can be used to indicate active communications through the CP2105 Table 1 shows the LED corresponding to each header position When using the CP2105 in Modem mode the shorting blocks on J2 and J3 should be removed Table 1 J2 and J3 LED Locations LED Pins DSO J2 1 2 DS1 J2 3 4 DS2 J3 1 2 DS3 J3 3 4 DS4 J3 5 6 6 4 Rev 0 4 SILICON LABS CP2105 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 CP2105 See Table 2 for the USB pin definitions Table 2 USB Connector Pin Descriptions Pin Description 1 VBUS 2 D 3 D 4 GND Ground 5 3 UA
9. ce Devices 3 IDE ATAJATAPI controllers 3 IDE ATAJATAPI controllers Keyboards Se Keyboards Mice and other pointing devices Mice and other pointing devices S Monitors S Monitors 89 Network adapters 89 Network adapters 3 9 CE COM S LPT 9 Ports COM amp LPT 9 Communications Port COM1 MB Processors E Communications Port COM2 Sound video and game controllers ECP Printer Port LPT1 T Ze Storage volumes raa ciz uae System devices E Silicon Labs Dual CP210x USB to UART Bridge Enhanced COM Port COM3 z Universal Serial Bus controllers Silicon Labs Dual CP210x USB to UART Bridge Standard COM Port COM4 r Generic USB Hub Serer Ge USB Root Hub Sound video and game controllers amp USB Root Hub a Storage volumes SR Rota 2 System devices GG USBXpress Device Universal Serial Bus controllers amp USBXpress Device Figure 2 CP210x in Device Manager Rev 0 4 3 SILICON LABS CP2105 EK 5 Target Board The CP2105 Evaluation Kit includes an evaluation board with a CP2105 device preinstalled for evaluation and pre liminary software development Numerous input output I O connections are provided to facilitate prototyping using the evaluation board Refer to Figure 3 for the locations of the various I O connectors P1 USB connector for USB interface DB9 connector for Standard RS232 interface DB9 connector for Enhanced RS232 interface Enhanced UART signal
10. cuit and specifically disclaims any and all liability including without limitation conse quential or incidental damages Silicon Laboratories products are not designed intended or authorized for use in applications intended to support or sustain life or for any other application in which the failure of the Silicon Laboratories product could create a situation where per sonal injury or death may occur Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized ap plication Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages 10 Rev 0 4 SIL ICON LABS
11. f the pins m Pins 1 2 connect CP2105 VIO input Pin 5 to CP2105 VDD Pin 6 Remove the shorting block to power VIO from an external source m Pins 3 4 connect the main 3 V net to the CP2105 VDD Pin 6 The main 3 V net powers the other components five green LEDs and RS 232 Sipex Part on the board 5 5 SUSPEND LED Source Selector J7 J8 These headers J7 J8 are included on the evaluation board to provide several options for the SUSPEND LED source The following describes the function of each pin m J7 1 2 connects CP2105 Standard UART SUSPEND output Pin 1 to the SUSPEND LED m J7 2 3 connects CP2105 Enhanced UART SUSPEND output Pin 17 to the SUSPEND LED m J7 2 J8 1 connects the main 3 V net to the SUSPEND LED This will cause the SUSPEND LED to act as a power LED 6 Rev 0 4 SILICON LABS CP2105 EK 6 Schematic oNeWAaYIS 01609 UOHEnIRA2 GOLZdd r 106
12. on process connect a USB cable between the host computer and the CP210x Evaluation Board Windows will automatically finish the driver installation Information windows will pop up from the taskbar to show the installation progress 6 If needed the driver files can be uninstalled by selecting Silicon Laboratories CP210x USB to UART Rev 0 4 11 10 Copyright 2010 by Silicon Laboratories CP2105 EK CP2105 EK Bridge Driver Removal option in the Add or Remove Programs window 2 1 2 Virtual COM Port Driver Installation for Macintosh The Mac drivers are not automatically installed but can be found on the CD ROM in the CP210x Mac directory This directory contains Virtual COM Port drivers for OS9 and OSX To install the Mac OSX virtual COM port driver perform the following steps 1 Extract the Mac_OSX_VCP_Driver zip file 2 Next run the extracted file SLAB_USBtoUART Installer 3 To uninstall the driver run the extracted file SLAB_USBtoUART Uninstaller 2 1 3 Virtual COM Port Driver Installation for Linux The Linux drivers are not automatically installed but can be found on the CD ROM in the CP270x Linux directory This directory contains Virtual COM Port drivers for Linux 2 6 and Linux RedHat 2 4 To install the drivers follow the installation instructions located in the appropriate ReleaseNotes txt file 2 2 USBXpress Driver Development Kit The Silicon Laboratories USBXpress Development Kit provides a com
13. plete 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 and host interface function library host API provided in the form of a Windows Dynamic Link Library DLL See AN169 USBXpress Programmer s Guide for detailed information on customizing the USBXpress drivers 2 2 1 USBXpress Installation for Windows Press the Install CP21xx Tools button on the main installation panel to access the USBXpress Development Kit for Windows Choose the option for your kit Ensure that the Install USBXpress option is selected The default installation directory is C SiLabs MCU USBXpress 2 2 2 USBXpress Installation for Windows CE The USBXpress Development Kit for Windows CE can be found on the CD ROM in the USBXpress Windows_CE directory This directory contains a USBXpress kit for Window CE 4 2 5 0 and 6 0 Follow the installation instructions located in the appropriate ReleaseNotes txt file 2 Rev 0 4 SILICON LABS CP2105 EK 3 CP2105 Hardware Interface Connect the CP2105 evaluation board to a PC as shown in Figure 1 1 Connect one end of the USB cable to a USB Port on the PC 2 Connect the other end of the USB cable to the
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