software manual - 秋月電子通商 - 電子部品・半導体【...

Software Manual

for Oscilloscope

1 Welcome ..................................................................................................................................................... 1

2 Version ........................................................................................................................................................ 1

3 System requirement .................................................................................................................................. 2

4 Using for the first time ............................................................................................................................... 3

4.1 Windows XP driver installation ........................................................................................................ 3

4.2 Windows 7 driver installation........................................................................................................... 5

5 Software introduction ................................................................................................................................ 5

5.1 PC Oscilloscope basics ..................................................................................................................... 5

5.2 PC Oscilloscope Introduction ........................................................................................................... 6

5.2.1 Start and pause ........................................................................................................................ 6

5.2.2 Wave display area .................................................................................................................. 7

5.2.3 Display menu .............................................................................................................................. 7

5.2.4 Gear knobs ................................................................................................................................. 11

5.2.5 Auto Measurement ................................................................................................................... 12

5.2.6 Menu......................................................................................................................................... 14

5.2.7 Wave set up .............................................................................................................................. 15

5.3 Signal Generator Software Function .............................................................................................. 19

5.3.1 PWM ........................................................................................................................................ 20

5.3.2 Conventional waveform signal ................................................................................................. 21

Oscilloscope 2013-09-25 Version 6.0.0

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1 Welcome

With a scope device from us, this software turns your PC into a powerful PC

Oscilloscope with all the features and performance of a bench-top oscilloscope at a

fraction of the cost.

2 Version

Software of Version 6.0 0 is a major new release of Oscilloscope device.

feature details

No installation The software do not need to be installed on your PC

.net architecture The latest Windows .NET technology helps us get new features to

you quicker.

OS support Support XP, Win 7, Win 8 (both 32 bit and 64 bit) OS.

Advanced algorism Improved algorism to avoid burr losing during the plotting a large

quantity of sampled data to PC screen with a limited pixel number.

functions details

live sampling Dual channels with independent live sampling and displaying.

Recoding and

Reviewing

We can record the interested waveforms into files and review them on

any other time. We can pause or jump to the specified frame,

backwards and forwards to observe the details.

Trigger Support normal trigger and single trigger.

AC & DC coupling Support AC & DC coupling

Auto measurement Maximum, minimum, average, frequency, period, positive width,


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negative width, duty rate, peak-peak, rising time

Cursor

measurement

With mouse dragging on the plot area, we can measure the latitude

and altitude span upon the selected rectangle.

Zoom in & zoom out Three kinds of Zoom function are available: Zoom in the X axis, Zoom

out the X axis, Zoom in both X axis and Y axis.

FFT Show the FFT curve for the measuring channel.

Move left/right We can move the waveforms left or right to find another interested

area while in the zoomed states

Math operation Show the curve of ch1 + ch2, or show the curve of ch1 + ch2.

Lissajous pattern Frequency measurement or phase difference

text storage Save the wave as text storage

3 System requirement

item description

OS Support XP, Win 7, Win 8 (both 32 bit and 64 bit) OS.

CPU >2.0G

RAM >1.0G

SDK .net framework 2.0

ports USB 2.0 compliant port

temperature 0 ~ 40 centigrade

Note: Dot net framework 2.0 is a necessary condition for this software's running on XP OS,

so we need install Dot net framework 2.0 for this product. We provide 32 bit Dot net framework

2.0 (dotnetfx20.exe) in the software package for your convenience.

We do not need it on the Win7 OS and the XP ones on which the .net framework 2.0 has been

installed.


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You can also get the latest version on

http://www.microsoft.com/en-us/download/details.aspx?id=1639

4 Using for the first time

We have designed this device to be as easy as possible to use, even for newcomers to

oscilloscopes. Once you have followed the introductory steps listed below, you will soon

be on your way to becoming an expert.

1： Plug in your scope device. Windows will recognize it and prepare your computer

to work with it.

2：Install the driver: After the step 1, the PC will recognize a new device for you. We

need install the driver for this new device before we can use it. You can find the driver

under the folder “driver” in the software package. Detailed instructions on how to install

driver on different OS are described in chapter 4.1and4.2.

3：Execute the software application, and click the start button on the lower right

corner, the oscilloscope would be started and plotting zero voltage waveform of the

channel 1 by default. Click the “ch2” button on the upper right corner, the waveform of

channel 2 will appear.

4：With the probes attached by this device, we can connect a signal to the scope and

enjoy our first wave. For your convenience, our scope device provides a metal chip to

output a 3.3V, 1K Hz square signal.

4.1 Windows XP driver installation

Connecting the product to the host PC with the USB cable we provided, the PC will

recognize a new device for you. We need install the driver for this new device before we

can use it.


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Besides following the system prompt, you can also install a driver for this device

manually. Right click on "my computer" to choose "properties", and then choose "device

manager" (In Windows 2000, you have to choose the "hardware" tab first and then

"device manager"). This will display a list of the devices that are on your computer. Right

click on the device "LJTUSB" and click "properties" t0 choose "driver" and click "update

driver", you will be asked to browse for the new driver.

Step 1: Choose “Install form a list or specific location”，and "Next":

Step 2: Choose “Browse”, set the location to your driver's path, such as

“e:\Osillagraph_setup\driver”, and then “Next”：


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Step 3: done.

After the install, you may find our device in the device manager.

4.2 Windows 7 driver installation

Plug in the device and win7 will find a new device for us.

Step 1: Windows 7 usually search the driver by Windows Update for new device. I t will

fail because our device isn’t a standard device for common use.

Step 2: Install the driver manually: Right click on the “my computer” on desktop, and

select “manage” to initiate device manager, we will find our device , right click on it and

select “update the driver”.

Step 3: In the following dialog Win7 provide, we choose the item which means browse

the computer to search our driver.

Step 4: We provide the path of driver for next dialog to tell system where to find our driver.

The path must set to the “driver” folder.

Step 5: Done.

5 Software introduction

5.1 Oscilloscope basics

An oscilloscope is a measuring instrument that displays a graph of voltage against

time. For example, the picture below shows a typical display on an oscilloscope screen

when a varying voltage is connected to one of its input channels.


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Oscilloscopes allow you to adjust the vertical and horizontal scales of the display.

The vertical scale is called the voltage range. The horizontal scale is called the time base.

In this software, all the channels share the same time base.

We provide three knob controls to adjust voltage range for each channel and the

time base for both channels.

5.2 Oscilloscope Introduction

5.2.1 Start and pause

There are two ways to start the scope:

1: If we launch this software first, and then plug in the device, scope will get started

automatically.

2: If we launch this software after plugging the device, scope should be started by

clicking the start button.


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In the running state, the start button turns into a stop button, on clicking which the

scope will be stopped until another start. When the device is plugged out suddenly, the

software will turns into a stopped state automatically. We recommend to plug out the usb

connection after closing the software when you are done with your using.

5.2.2 Wave display area

5.2.2.1 Waves

Two independent waves from ch1 and ch2 are draw here (selected by the channel

control buttons in operation panel), blue for ch1 , and yellow for ch2 .

5.2.2.2 Zero-input positions

Adjustable Zero-input position indicator is provided for each channel, which could

be dragged vertically by mouse to set the zero input position .

5.2.3 Display menu

5.2.3.1 Fit all window

Display the default waves, usually used to get rid of the effect of zoom and


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cursor measurement.

5.2.3.2 Cursor measurement

Set the cursor to be a cross type, and tell the time span and voltage span

value of the dragged rectangle.

5.2.3.3 Info

Show the info of device name, current state, function type and current sample

rate

5.2.3.4 Zoom in

: Set the cursor to be a cross type, and zoom in the dragged rectangle onto all wave

area, meanwhile, a thumbnail shows up to remind you the original default waves. To end

this zoomed state, click on the “Fit all window” item we mentioned before.


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5.2.3.5 "Zoom out"

This feature is only valid under magnification, can be used continuously,

constantly transverse shrink on the waveform image which has been enlarged, until

reduced to a non-horizontal state before enlargement.

5.2.3.6 "Left", "right"

This feature is only valid under magnification, can be used continuously,

constantly maintain the current zoom scale pan around on the waveform image which


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has been enlarged ,until moved to the far left or far right circles.

5.2.3.7 " X Axis Zoom in"

This menu item's functions is X horizontal axis marquee Zoom in, methods of

operation is the same with 5.2.2.4 "Zoom in"

5.2.3.8 "Color Mode”

This menu item is clicked, the display mode of the drawing area will be in black and

white and color modes. Black and white screen shots as shown below , facilitate the data

waveform shots use of producing reports document s. Color mode can facilitate long

observation waveform and avoid eyestrain.


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5.2.3.9 ‘‘X-Y PLOT’’

‘‘X-Y PLOT’’ named “Lissajous pattern”, the measured signal and the standard

signal are respectively displayed at the X axis and the Y axis, and become a synthesis of

graphics in the oscilloscope display.

5.2.3.10 "Save”

The collected data will be saved in the text file format (.TXT) .

5.2.4 Gear knobs

5.2.4.1 Time knob

All the channels of the virtual oscilloscope share the

same time gear knob. Time gear's change affects each

channel at the same time. Time knob gear selected

value represents each cell of the waveform drawing

area representing the time span of a cross.

Different types of devices may have different

distribution of time shift values, the right shots for

reference only, specific gear please refer to each type of hardware description.

All the channels of the virtual oscilloscope share the same time gear knob. Time gear's

change affects each channel at the same time. Time knob gear selected value

represents each cell of the waveform drawing area representing the time span of a

cross.

Different types of devices may have different distribution of time shift values, the right


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shots for reference only, specific gear please refer to each type of hardware description.

5.2.4.2 Voltage knob

All channels of the virtual oscilloscope using their own

independent voltage range knob between unaffected.

As shown in the screenshot on the right, select the

chart below Channel tab will switch out the selected

channel voltage gear knob.

Voltage value of the selected determines the currently set channel in the waveform

drawing area in accordance with the voltage proportional of each vertical grid to display

the collected voltage waveform. However, this value has nothing to do with the scale, but

determines the ratio of display and measurement.

Different types of devices may have different distribution of time shift values, the left

shots for reference only, specific gear please refer to each type of hardware description.

5.2.5 Auto Measurement

During the running of oscilloscope, the automatically measurement area of this virtual

oscilloscope software can refresh and show a variety of waveform measurements

displayed on the current screen in real time. By clicking on the bottom of the channel

tabs to display different channel automatic measurements. Because of the display

resolution, you may not be able to simultaneously display all the measured quantities, by

dragging the scroll bar on the right side of the region can browse all automatic

measurement quantities further.


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Measured

quantities

description

Maximum The highest voltage value of channel waveform

on the Current screen , unit V

Minimum The lowest voltage value of channel waveform

on the Current screen , unit V

Peak to

peak

Max - Min, Unit V

Frequency Unit kHz. Value is for the current channel's

average frequency waveform displayed on the

screen

Average On the screen, current channel waveform's all

the data points voltage value simply summing

then average, unit V.

Period unit Ms

Positive

and

negative

pulse width

In the middle of the minimum and maximum

value basis, higher than the reference waveform

width is positive pulse width ,less than the

reference waveform width is negative pulse

width, unit Ms.

Duty Positive pulse width divided by the cycle

Rise time Time of waveform from peak to peak position

increased from 5% to 95%, unit Ms..

RMS The RMS value of the voltage waveform on the

screen, unit V.

Note: If the current channel's waveform displayed on the screen is less than one period or more

than 50 cycles, respectively, because of the display is too sparse or too dense, resulting amount

of time-related measurements is displayed as 0, then the value does not represent a real 0.


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5.2.6 Menu

The menu located at the upper left corner, contains the basic function and parameter

Settings of the oscilloscope.

5.2.6.1 “FILE”

FILE contains 3 options:

Open : open the saved files and then display the Graphics in the draw area.

Save as txt: the collected data will be saved in the text file format (.TXT) .

Export: this function is reserved.

Record and review: the wave will be recorded and reviewed.you can find the

shortcut button in the function area.

5.2.6.2 “EDIT”

5.2.6.3 “VIEW”

View contains 3 different Mathematics view functions:

FFT: the raw data of the current selected channel can be FFT ,and draw the vertical

as the voltage amplitude, Abscissa as thel frequency curve .

Ch1+Ch2: output the vector sum wave of ch1 and ch2

Ch1-Ch2: output the vector difference wave of ch1 and ch2

5.2.6.4 “OPTIONS”

Show in notify area

Do not show the task bar

Perform the current settings for next open


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5.2.7 Wave setting function

This function area located under the menu bar

Coupled Model: DC or AC can be choosed in view of the different signal

measurement requirements

Channel states: channel is ‘on’ and channel 2 is ‘off ‘by default.

probe gears : “1X”: 1:1 probe using

“10X” :1:10 probe using

“100X” :1:100 probe using

Trigger: channel: ch1 or ch2

trigger way: rising edge trigger or HSDOWN

trigger type: no trigger or normal or singer

modules: oscilloscope

oscilloscope+signal generator

logic analyzer

wave record and review

When you need to put the waveform recording in the whole process of signal

acquisition for subsequent further observation or send mail to other staff for off-site

analysis, the waveform recording function that we provide will bring great

convenience and help.

app:ds:probe


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Waveform record file uses its own unique file format.

The different types of equipment has slightly different suffix,

roughly *. bmxxx. File name is automatically generated as a

starting date and time combinations when it is beginning to

record and it is stored in the directory of the software.

Composition rules of file name as shown in the image below:

Button is the Record button. Showing gray stands for the non-recording

state and showing red stands for the recording state. When the red status button is

clicked, the waveform recording starts. The button will flash alternately red and gray. It

suggests that the waveforms are being recorded. When the device is not properly

connected, the software collection is suspended or turned on and the waveform file is

being played back, these are non-recording state. The button shows gray at this time

and you can not start recording.

It records all the waveform data which appear on the screen during recording

process. In order to accurately restore a variety of related settings of recording in the

playback process, the following settings will be synchronized stored and during playback

process these settings are automatically forcibly set to be recording stored state.


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1 Time knob gear

2 voltage knob gear of all the opening state

channel

3 Channel Select button state

How many frames of the screen waveform you want to record can be set via the

Configuration button . A window with sliders will pop up for users to choose how

many frames of the screen waveform you want to record after clicking the Configure

button.

There are multiple buttons and controls involved in the control during playback

process. The playback operation of all states can be effected in addition to recording a

wave file or playing back on the last wave file. If the playback comes across the real-time

acquisition process, then the playback operation will force the software to pause the

real-time acquisition process into the waveform playback state.

The capture state of waveform playback and the real-time acquisition both display

constantly updating waveform. Then how to distinguish the waveform which is still being

played on the screen is the real-time waveform or the stored waveform playback? The

important difference is that the background color of screen drawing area at the two states.

The background color of the real-time acquisition state is dark blue (below left) and the


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background color of waveform playback state is gray-black (below right).

Playback Waveform steps:

1:Click the Folder button can open a file dialog.

2： Browse to waveform data files and specify the file which is needed.

3: The file's full path and name will be displayed in the inside text field below the

button and the waveform data will be started playback after selecting and opening the

waveform file

4: The total number of frames waveform data in the opening wave file is displayed

at the far left side of the following line in the text field. For example, the total number of

frames is 50 in the image below. The number of the frame which is currently being

played is shown near the total number of frames. You can select the forward and

backward by up and down arrows or enter the number of frames to be played directly.

Rightmost button is the start and pause button.

5: A dialog box prompts that playing is over after all data frames in the file have


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finished playing.

6: If you need to play the same waveform file, you do not need to repeat Step 1 to

re-open the file. It will be played again by clicking the Start button .

5.3 Signal Generator Software Function

When a hardware device plug into the signal generator module, you need to select

the item "Oscilloscope + signal generator" of the menu option in the top right corner of

the software to enable the control function of signal generator software.

Enabling and stopping the signal generator require action buttons: . When

the button is started, the output interface of signal generator module will output in

accordance with the targets set by the software. The output state of signal generator is

indeterminate after stopping the button.


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5.3.1 PWM

You can select the PWM to output tunable square wave signal which can get the

20K maximum frequency .The duty cycle could be adjusted by 10% of the ladder.

Frequency can be input by the numeric keypad buttons in the image above and the duty

cycle can be changed via dragging the slider quickly. The default output is 500HZ, 50%

duty cycle waveform.


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5.3.2 Conventional waveform signal

Select the output waveform of the conventional kind: square wave, sine wave,

triangle wave.

For entering the frequency of the signal to be generated, 1HZ ~ 20MHZ can be

continuously set.

The bias and the amplitude of the signal can be easily set via slider control.

software manual - 秋月電子通商 - 電子部品・半導体 【...

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software manual - 秋月電子通商 - 電子部品・半導体【...