softDSP SDS 200 SoftScope User Manual
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softDSP SDS 200 SoftScope User Manual

Pc based digital oscilloscope
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User's Guide
- SDS 200 -
- SoftScope -
PC Based Digital Oscilloscope
www.softdsp.com

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Summary of Contents for softDSP SDS 200 SoftScope

  • Page 1 User’s Guide - SDS 200 - - SoftScope - PC Based Digital Oscilloscope www.softdsp.com...
  • Page 2 Copyright softDSP Co., Ltd. All rights reserved. This document is being furnished by softDSP Co., Ltd. for information purposes only to licensed users of the SDS 200 and is furnished on as “AS IS” basis, that is, without any warranties, whatsoever, expressed or implied.
  • Page 3 FCC NOTICE THIS DEVIDE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITION: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDERSIRED OPERATION.
  • Page 4 During the warranty period, softDSP Co., Ltd. will at its option, either will repair or replace the defective product. But, the foregoing warranty shall not apply to defects resulting from improper or inadequate...
  • Page 5 SAFETY SUMMARY Do not install substitute parts or perform any unauthorized modification to the product. Return the product to a softDSP Sales and Service Office for service and repair to ensure that safety features are maintained. Observe Maximum Working Voltage Do not use this product on bare wires above 42Vpk, AC 30Vrms and DC 60V.
  • Page 6 Minimum System Requirements To install and run SoftScope, you should have the following; Operating System Windows 98/ME/2000 CPU/Mainboard Pentium 200MHz , USB equipped mainboard Memory 32MByte 20MByte Graphic Card Microsoft DirectX supported Screen resolution: 800x600 Color depth: 16bit...

  • Page 7: Table Of Contents

    Table of Contents Ch 1. Introduction ..................... 1 1. What is SDS 200/SoftScope ? ............... 1 SDS 200 ................... 1 SoftScope ..................2 2. Hardware Specification................3 3. SoftScope Installation ................5 4. SDS200 Setup ..................8 5. Setup sds200.inf Manually..............9 6.
  • Page 8 Ch 4. Toolbars, Menus, Dialog boxes & Screen Information ...... 30 1. Toolbar....................30 2. Menu....................31 File ....................31 View ....................31 Channel ..................32 Display .................... 32 Math/FFT ..................33 Run/Stop..................33 Trigger .................... 33 Measure..................33 Util ....................34 Help ....................

  • Page 9: Ch 1. Introduction

    Ch 1. Introduction 1. What is SDS 200/SoftScope ? SDS 200 SDS 200 developed by softDSP Co., Ltd. is a portable PC-based Digital Oscilloscope. High performance SDS 200 has the following features: 200MHz analog bandwidth, 5GS/s equivalent sampling, 100MHz real-time sampling.

  • Page 10: Softscope

    Chapter 1. Introduction SoftScope SoftScope is a Windows software that controls SDS 200. Easy to use SoftScope is easy to use. It is intuitive and easy to understand. Big screen SoftScope uses 500 x 400 screen size. Various data format processing SoftScope can save waveform in the following formats: text file, jpg/bmp graphic file, MS excel/word file.

  • Page 11: Hardware Specification

    Chapter 1. Introduction 2. Hardware Specification Input Max. sample rate Realtime sampling: 100MS/s using one channel, 50MS/s using two channels Equivalent sampling: 5GS/s Channels Bandwidth 200 MHz (-3dB) Single shot bandwidth:20MHz Vertical resolution 9 bits/channel Gain range 10mV ~ 10V/div @ x1 probe (10mV, 20mV, 50mV, 100mV, 200mV, 500mV, 1V, 2V, 5V, 10V/div 1,2,5 sequence) 100mV ~ 100V/div @ x10 probe...
  • Page 12 Chapter 1. Introduction Trigger Type Edge trigger: Rising edge, falling edge Logic trigger: AND, NAND, OR, NOR, XOR, XNOR Pulse trigger: Less than width, more than width (10ns ~ 167ms) Delay trigger: By event (1~16,777,215), by time (10ns ~ 167ms) Mode Auto, Normal and Single Autoset...

  • Page 13: Softscope Installation

    Chapter 1. Introduction 3. SoftScope Installation Caution!) You must install ‘SoftScope’ before using SDS 200. 1. While in Windows, insert the installation CD into the CD-ROM drive. 2. The installation should start up automatically. Otherwise in Windows Explorer, switch to the CD-ROM drive and run Setup.exe.
  • Page 14 Chapter 1. Introduction 5. Fill in the user information and serial number. Click Next to continue. 6. Choose a destination directory. Click Next to continue. 7. Check the setup information. Click Next to start copying of files.
  • Page 15 Chapter 1. Introduction 8. This Status dialog is displayed during copying of files. 9. After Installing SoftScope, the installation program will check the DirectX version of your computer. If it is later than 6.0, the installation program will skip the DirectX Setup. 9.1 If it is earlier than 6.0, the DirectX Setup will start up automatically.

  • Page 16: Sds200 Setup

    Chapter 1. Introduction 4. SDS200 Setup Caution!) SoftScope must be installed before using SDS 200. This setup process is done once; at the first time of connection. 1. Connect the A-Type Plug of USB cable to your PC’s USB port. 2.

  • Page 17: Setup Sds200.Inf Manually

    Chapter 1. Introduction 5. Setup sds200.inf Manually When sds200.inf file is not be detected automatically, you see the following dialog box. In this case you must install sds200.inf file manually. 1. Choose ‘Search for a suitable driver for my device’ button. Click Next to continue. 2.
  • Page 18 Chapter 1. Introduction 3. The sds200.inf file is located in SoftScope CD-ROM root directory. Specify the location by either entering or browsing. 4. sds200.inf file is detected automatically. Click Next to continue. 5. Click Finish.

  • Page 19: Warning

    Chapter 1. Introduction 6. Warning! We recommend using High Color(16 bit) mode. With some graphic cards with 32 bit color depth, SoftScope doesn't work. SoftScope doesn’t support 24 bit color mode. If you see the following error message when you run SoftScope. Check the following two items. Check if DirectX is installed and work well.
  • Page 20 Chapter 1. Introduction Check if you're using High Color(16 bit) mode. Under Control Panel choose ‘Display’ applet. 3. Set High Color (16bit) mode and click OK to continue.

  • Page 21: Calibration

    Chapter 1. Introduction 7. Calibration SDS 200 calibration 1. When manufactured, SDS 200 is calibrated manually to obtain maximum performance. 2. You may calibrate SDS 200 5 or 6 months after purchase. Probe Compensation 1. You must use a probe with more than 200MHz bandwidth to get undistorted signal. 2.

  • Page 22: Ch 2. How To Use Sds 200/Softscope

    Chapter 2. How to use SDS 200/SoftScope Ch 2. How to use SDS 200/SoftScope 1. Simple Measurement 1. Start SoftScope. 2. SoftScope checks the internal state of SDS 200, USB communication status and then read initialization data. 3. Connect channel 1 probe to the calibration terminal. Push the autoset button.
  • Page 23 Chapter 2. How to use SDS 200/SoftScope 8. Change the intensity of the waveform. A. Just as in changing the persistence effect, you can change the intensity. B. By changing the scroll bar in the menu, you can see a more/less distinct line.

  • Page 24: Basic Operations

    Chapter 2. How to use SDS 200/SoftScope 2. Basic Operations Change Vertical Scale(Volt/Div) 1. Change vertical scale(volt/div) from panel. Push voltage scale change panel. B. Set the volt/div scale with mouse or keyboard. C. Vertical scale is changed. 2. Change vertical scale(volt/div) with mouse button. Push voltage scale change icon.

  • Page 25: Change Horizontal Scale(Time/Div)

    Chapter 2. How to use SDS 200/SoftScope B. Mouse icon is changed to number 1. C. Push the left/right mouse button to change volt/div. D. With mouse that supports scroll button, change the voltage offset. 3. Change vertical scale(volt/div) from menu and hot-key. A.
  • Page 26 Chapter 2. How to use SDS 200/SoftScope C. Horizontal scale is changed. 2. Change horizontal scale(time/div) with mouse button. Push time scale change icon. B. Cursor is changed to “T”. C. Push the left/right mouse button to change volt/div. D. With mouse that supports scroll button, change the trigger point.

  • Page 27: Measurement Using Cursor

    Chapter 2. How to use SDS 200/SoftScope 3. Change horizontal scale(time/div) from menu and hot-key. A. Channel Time Scale. B. Press the appropriate hot-key. Measurement Using Cursor Measure voltage and time offset simply using mouse. Push icon and the cursor is changed to cross B.

  • Page 28: Measurement By Icon

    Chapter 2. How to use SDS 200/SoftScope Measurement by Icon SDS 200 has many measurement functions. -Peak-to-peak = Max – Min Pk-Pk -Measured over the entire waveform -Voltage of the absolute maximum level -Measured over the entire waveform -Voltage of the absolute minimum level -Measured over the entire waveform -Amp = Base –...
  • Page 29 Chapter 2. How to use SDS 200/SoftScope - The Root Mean Square voltage over the first cycle in the waveform Cycle RMS - Positive Overshoot = (Max - Top)/Amp x 100 % Positive Overshoot - Measured over the entire waveform - Negative Overshoot = (Base - Min)/Amp x 100 % Negative Overshoot - Measured over the entire waveform...

  • Page 30: Change Trigger Level & Trigger Point

    Chapter 2. How to use SDS 200/SoftScope Change Trigger Level & Trigger Point 1.Set the trigger input source. A. With only one channel on, trigger input source is automatically set to the channel. With 2 channels on, you can choose trigger input source between the two. B.

  • Page 31: Single Shot/Stop Mode

    Chapter 2. How to use SDS 200/SoftScope Single Shot/Stop Mode 1. Change state to stop or single shot. A. Push the stop button , SDS200 is in stop state. B. Every operation is the same as in the running state. 2.

  • Page 32: Print/Save Waveform

    Chapter 2. How to use SDS 200/SoftScope Print/Save Waveform 1. Save acquired waveform in the following formats. A. Text File B. JPG/BMP File C. Excel File D. Word File 2. Save as text format. A. Push the save button and the dialog box appears. B.
  • Page 33 Chapter 2. How to use SDS 200/SoftScope 4. Copy the image into clipboard. A. Select Copy from the File menu. B. Waveform is copied into clipboard. C. Paste the image into any program that supports clipboard paste. 5. Transfer the data to MS Excel using ActiveX automation. A.

  • Page 34: Ch 3. Advanced Technique

    Chapter 3. Advanced Technique Ch 3. Advanced Technique 1. Advanced Trigger You can return to normal trigger mode by uncheck Logic, Pulse, Delay check box in the advanced trigger dialog box. (Normal trigger mode) (Advanced trigger mode) Edge Trigger The Edge Trigger generates a trigger when the source signal passes through a specified level in either positive or negative direction, set by the user.

  • Page 35: Logic Trigger

    Chapter 3. Advanced Technique Logic Trigger The Logic Trigger generates a trigger depending on the logical relation between the state of the two input channels. AND, NAND, OR, NOR, XOR, XNOR Logic Triggers are available and the two input states can be negated if selected. Ch1 state: High/Low -Selects the state of channel 1 signal for Logic Trigger input Ch2 state: High/Low...

  • Page 36: Fft

    Chapter 3. Advanced Technique Secondary trigger source: CH1/CH2 - Selects the trigger source of the secondary trigger. Secondary trigger slope: Rising/Falling - Selects the slope of the secondary trigger. 2. FFT Analyze the frequency component of the waveform using FFT(Fast Fourier Transform). Push the FFT icon, and the FFT dialog box is appears.

  • Page 37: Math

    Chapter 3. Advanced Technique 3. Math Add/Subtract/Multiply/Divide the two waveforms. Push the Math icon. Src1/Src2 Sets input source. Operator Sets operation method Vertical Scale Sets vertical scale Zero Position Sets offset 2. Select source 1, source 2 and operator from the dialog box.

  • Page 38: Ch 4. Toolbars, Menus, Dialog Boxes & Screen Information

    Chapter 4. Toolbar, Menu & Dialog box Ch 4. Toolbars, Menus, Dialog boxes & Screen Information 1. Toolbar -Saves current waveform as dat, bmp or jpg file 1. Save As 2. Load State -Loads state file into current state 3. Save State -Saves current state to file 4.

  • Page 39: Menu

    Chapter 4. Toolbar, Menu & Dialog box -Changes horizontal scale factor 20. Time Scale -Sets trigger delay on 21.Delay On / Off -Sets trigger delay off 22. Trigger Source -Sets trigger source to a specific channel -Triggers on the rising edge of the signal 23.

  • Page 40: Channel

    Chapter 4. Toolbar, Menu & Dialog box FFT/Math Toolbar Shows/Hides FFT/Math Toolbar Ctrl + F3 Channel Toolbar Shows/Hides Channel Toolbar Ctrl + F4 Trigger Toolbar Shows/Hides Trigger Toolbar Ctrl + F5 Run/Stop Toolbar Shows/Hides Run/Stop Toolbar Ctrl + F6 Channel Name Sub Menu Operation...

  • Page 41: Math/Fft

    Chapter 4. Toolbar, Menu & Dialog box Math/FFT Name Sub Menu Operation Hot-key Math Calculates several signal Ctrl + M Changes signal to FFT Ctrl + F Run/Stop Name Sub Menu Operation Hot-key Run/Stop Starts/Stops acquiring waveform Ctrl + R Single Shot Begins Single Shot operation Ctrl + H...

  • Page 42: Util

    Chapter 4. Toolbar, Menu & Dialog box Cycle RMS Measurement of Cycle RMS Voltage Ctrl+Alt + Y Positive Overshoot Measurement of Positive Overshoot Voltage Ctrl+Alt + S Negative Overshoot Measurement of Negative Overshoot Voltage Ctrl+Alt + G Time Period Measurement of Period Ctrl+Alt + I Frequency Measurement of Frequency...

  • Page 43: Screen Information

    Chapter 4. Toolbar, Menu & Dialog box 3. Screen Information SoftScope has the following windows to show the internal states and settings. : Channel 1 Information window A. Click on this window, to change the voltage setting. B. The following information is displayed. a.
  • Page 44 Chapter 4. Toolbar, Menu & Dialog box : Trigger state selection tool bar Trigger source selection radio button Trigger mode (Auto/Normal) Trigger condition (Up edge/Down edge) Triger state display window. : Trigger state of current acquired waveform A. 'Auto trig'd' - Trigger signal is automatically generated because of no valid triggered signal.

  • Page 45: Option Dialog Box

    Chapter 4. Toolbar, Menu & Dialog box 4. Option Dialog Box Title On -Check to include title on file/print output Title -Use to set the title on file/print output Format -Sets color or Black or white type Include -Check to include informations Grid View -Sets the graticule type Channel Color Level...

  • Page 46: Ch 5. Appendix

    Chapter 5. Appendix Ch 5. Appendix 1. Three Operational Modes of SDS 200 Realtime mode In realtime mode SDS 200 acquires 10,000 sample data from the input source. It can show the real data simultaneously. But because of the sampling speed limit of A/D converter, it is limited only to 10us/div time/div.
  • Page 47 Chapter 5. Appendix 2. Select Zero Calibration from menu. 3. Zero calibration dialog box appears. 4. Calibration is done automatically.

  • Page 48: Firmware Update

    Chapter 5. Appendix 3. Firmware Update You can download new firmware from softDSP website(www.softdsp.com). 1. Connect SDS 200 to PC. 2. Download a new firmware. (.iic file format) 3. Run ezup.exe software. 4. Select File Open. 5. From Dialog Box choose the firmware(.iic) file.

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