XE8000EV120 Semtech, XE8000EV120 Datasheet

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... ADVANCED COMMUNICATIONS & SENSING SX8722 Evaluation Tools XE8000EV120 © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 User’s Guide 1 Users Guide PRELIMINARY www.semtech.com ...

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... Framework 2.0 ...................................................................................................................................4 2.1.2 FTDI USB drivers ........................................................................................................................................4 2.2 Connecting the board for the first time ........................................................................................................5 2.3 How to determine which com port has been assigned to the XE8000EV120 board ..................................8 3 Hardware description ...............................................................................................................................9 3.1 Boards features ...........................................................................................................................................9 3.2 Communication between PC, Gateway and SX8722 .................................................................................9 3.3 Power sources specification ...

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... Figure 4 GUI after Serial COM port is opened.........................................................................................................7 Figure 5 Windows Device manager .........................................................................................................................8 Figure 6 Hardware block diagram ............................................................................................................................9 Figure 7 XE8000EV120 board overview ................................................................................................................11 Figure 8 Power supply matrix.................................................................................................................................12 Figure 9 XE8000EV120 power supply selector .....................................................................................................12 Figure 10 SX8722 Application board .....................................................................................................................15 Figure 11 GUI Startup window ...............................................................................................................................16 Figure 12 SX8722 Registers Tabs Configuration 1 ...............................................................................................18 Figure 13 "Overview" sub tab.................................................................................................................................19 Figure 14 " ...

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... The GUI needs the .NET Framework 2.0 to work properly. The installer proposes to install it, if the installer is unable to detect it on your system. 2.1.2 FTDI USB drivers The XE8000EV120 board uses a USB to UART converter from FTDI-Chip thus to the board work properly the USB drivers must be installed. If the USB drivers are not detected on your PC their installation will be proposed. ...

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... Note: Ensure that the jumper at the right of the power switch is either connected on 2.5V, 3.3V or 5V_USB. Note: The first time you connect the kit, the system will install your XE8000EV120 connection as a new Serial COM port device. ...

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... ADVANCED COMMUNICATIONS & SENSING Select the Serial COM port corresponding to your XE8000EV120 board on the GUI toolbar. Click on “Open COM” button located on the GUI toolbar. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 Figure 2 Serial COM port selection Figure 3 Open Serial COM port ...

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... ADVANCED COMMUNICATIONS & SENSING Once the Serial COM port is open the application will read all the SX8722 registers in order to update the GUI. Figure 4 GUI after Serial COM port is opened © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 7 Users Guide PRELIMINARY www.semtech.com ...

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... Manager” button. Develop the “Ports (COM&LPT)” section Switch ON and OFF the XE8000EV120 board The Serial COM port assigned to the XE8000EV120 is the one that disappears and reappears each time. © 2007 Semtech Corp. ...

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... The gateway fetches the ADC measured value (using I2C connection with SX87xx). 3- The gateway will send a data frame with the measured value to the PC via the UART. Cmd req PC Cmd resp Data © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 Cmd req USB Gateway Cmd resp to UART ...

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... Note: The input analog voltages are specified in the SX8722 datasheet. 1 Can be regulated to 5.0, 3.3 and 2 Can be regulated to 3.3 and 2.4 Volts 3 When jumper EXT_POW is connected 4 Max current, all LEDS on 5.5V, SX8722 full speed, GUI connected. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 Typ Max 5 ...

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... RC calibration jumper Low power modes buttons 3.4.1 Power supply The XE8000EV120 board provides a lot power supply voltage possibilities; the following paragraphs describe how to configure and use them. 3.4.1.1 Power sources The board can be powered through four different power sources: 1. USB: USB power coming from the PC. ...

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... IMPORTANT: DO NEVER CONNECT EXT_POW JUMPER IF VDD_EXT IS HIGHER THAN 5.5VDC The picture below shows the selector. User should place the jumper on the desired SX8722 supply voltage value. Figure 9 XE8000EV120 power supply selector Note: Use only one jumper at the same time on the power supply selector. © 2007 Semtech Corp. ...

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... TX, RX, SDA&SCL (see §3.5.2). By default, the jumper is not connected. The RESET_GW button allows the user to reset the gateway. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 VDD The analog interface gives access to the SX8722 analog pins, ...

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... The reference chip is a Semtech SC431 shunt regulator adjustable from 2.5 to 5.5VDC It is configured to provide a reference voltage of 2.5V. To set other voltages, please refer to SC431 datasheet and adjust the reference with VREF_R1 & VREF_R2 resistors. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 14 Users Guide PRELIMINARY ...

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... Note 1: Application board GERBER files are available on request trough a request to our support team , these board are NOT sold without the XE8000EV120 evaluation kit. Note2: Application board has been designed for a Zero Insertion Force socket (optional on the XE8000EV120 evaluation boards) which order information are described below: ...

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... ADVANCED COMMUNICATIONS & SENSING 4 SX87xx Evaluation Tools Graphical user Interface (GUI) The GUI enables the user to interact with the XE8000EV120 and the Application board. 4.1 Overview The GUI gives a complete overview of the current SX8722 configuration plus the ability to control it. The GUI is mainly divided in 4 sections: 1 ...

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... Browse button let the user choose where to store the log file and which name it will have. c. Start button starts the logging process. While the logging process is running a progress bar will show the progress. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 17 Users Guide PRELIMINARY ...

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... There is 4 Configurations tab pages that are exactly the same excepting the registers addresses. The configuration tabs enables the user to see the ZoomingADC registers detailed by function and also the corresponding hexadecimal registers value. Figure 12 SX8722 Registers Tabs Configuration 1 © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 18 Users Guide PRELIMINARY www.semtech.com ...

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... On this sub tab the user may also choose if the inputs are “Single-ended” or “Differential” as well as choosing which of the inputs is used as “Positive” or “Negative” input. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 Figure 13 "Overview" sub tab Figure 14 "Inputs" sub tab ...

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... The user has also the possibility to decide if the ADC will work in one shot or in continous mode. When the Read button is pressed the last ADC converted value is also displayed in this sub tab. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 Figure 15 "PGA" sub tab Figure 16 "ADC" sub tab ...

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... The sub tab named “Filter” lets the user enable or disable the integrated filtering options. The user can choose between two kinds of filters (Average and Moving Average) as well as choosing how much samples are used for the average calculation. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 Figure 17 "Alarms" sub tab Figure 18 "Filter" sub tab 21 ...

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... If the user double-clicks on the graphic it will expand until it fills the whole configuration space. (See Figure bellow). The “Back” button will reduce the Graphic and will show again the ZoomingADC configuration. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 Figure 19 Expanded ADC graphic 22 Users Guide PRELIMINARY www ...

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... Zoom +, If the user draws a rectangle in the graphic and then release the mouse button the graphic will zoom the signal inside the rectangle. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 Figure 20 Zoom + Figure 21 After zoom + 23 Users Guide PRELIMINARY www ...

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... Move the zoomed window. To move the zoomed window the user must select the corresponding button and then click on the graphic without releasing the button and move the mouse. Figure 23 After the graphic has been moved © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 Figure 22 After Zoom - 24 Users Guide PRELIMINARY www ...

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... Status bar (4) The Status bar will display application errors that may happen while using the GUI. If there is no error the status bar shows a “-“sign. © 2007 Semtech Corp. Figure 24 SX8722 Registers General Tab 25 Users Guide SX8722 Evaluation Tools XE8000EV120 PRELIMINARY www.semtech.com ...

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... If the user disconnects the USB cable or shuts down the Evaluation board a Windows error message may appear when the GUI is closed or the user closes the Serial Port. Solution: None. © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 26 Users Guide PRELIMINARY www.semtech.com ...

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... ADVANCED COMMUNICATIONS & SENSING 6 XE8000EV120 board 6.1 Schematics © 2007 Semtech Corp. Figure 25 XE8000EV120 board schematic 27 Users Guide SX8722 Evaluation Tools XE8000EV120 PRELIMINARY www.semtech.com ...

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... ADVANCED COMMUNICATIONS & SENSING 6.2 Physical dimensions The XE8000EV120 layers board. Thickness: 1.6 mm 100 mm Figure 26 XE8000EV120 physical dimensions © 2007 Semtech Corp. SX8722 Evaluation Tools XE8000EV120 120 mm 28 Users Guide PRELIMINARY www.semtech.com ...

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... ADVANCED COMMUNICATIONS & SENSING 7 Application board 7.1 Schematics XEMICS © 2007 Semtech Corp. Figure 27 Application board schematic 29 Users Guide SX8722 Evaluation Tools XE8000EV120 PRELIMINARY www.semtech.com ...

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... ALRM1 ALRM2 CKOUT NC SCL SDA NC NC NTEST AR2P AR2N 22 16mm Pad dimensions: Solder Mask: Paste Mask: 15.2mm Figure 29 Application board footprint 30 Users Guide SX8722 Evaluation Tools XE8000EV120 PRELIMINARY Thickness 0.4mm CAL NC NC XOUT XIN NC RESET NC 27.1mm VBAT VSS AR1N AR1P AC0 ...

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... Contact Information Advanced Communication and Sensing Products Division Phone (805) 498-2111 Fax : (805) 498-3804 © 2007 Semtech Corp. Semtech Corporation 200 Flynn Road, Camarillo, CA 93012 31 Users Guide SX8722 Evaluation Tools XE8000EV120 PRELIMINARY www.semtech.com ...