Introduction
USB Data Logger System
Setting Up - Installation
Setting Up - Test Probe Connections
Sample Logging Session
Software Menus
More Help
Data Logger Specifications
The USBee is a complete digital test bench in one compact and easy to use pod. Combined with powerful Windows® software, the USBee performs the following functions:
· Data Logger
· Remote Controller
· Logic Analyzer
· Signal/Pattern Generator
· I2C Controller
· Async Serial Controller
· Frequency Counter
· And many more to come&ldots;
This manual details the USBee Data Logger.
The USBee Data Logger System consists of the USBee pod connected to your Windows® 98 PC through the USB cable, and to your digital circuit using the multicolored test leads and clips. Once connected and installed, the USBee Data Logger can provide the following functions:
· Log up to 8 digital signals
· Real time display of current signal state
· Log unlimited samples to disk
· From 0.25 to 300 second sample intervals
· View up to 32765 samples
· Display logged samples in List, Waveform, and D to A modes
· 2 measurement cursors show time and state
· Search for signal pattern or values
· Print current screen or data log
· Easy setup and use through Windows® 98 interface
1. Download the Data Logger Software for FREE from here..
2. Unzip the file into a new directory. Click Here if you need WINZIP.
2. Choose "Start|Run" from the Windows® 98 Start Menu
3. Press Browse and select the file "SETUP.EXE" in the new unzipped directory
4. Click OK
5. Follow the instructions on the screen to install the rest of the USBee Data Logger software on your hard drive.
6. Now, plug the USBee cable into a free USB port on your computer.
7. You should see a dialog box indicating that it found new hardware and is installing the software for it. Please wait while this finishes.
8. The Data Logger Software is now installed.
Setting Up - Test Probe connections
The following table shows the use of the 12 USBee test probes while using the Data Logger Software.
|
Pod Signal Name |
Lead Color |
Data Logger Function |
Where to connect |
|
0 |
BLACK |
Input Signal 0 |
To a test signal |
|
1 |
BROWN |
Input Signal 1 |
To a test signal |
|
2 |
RED |
Input Signal 2 |
To a test signal |
|
3 |
ORANGE |
Input Signal 3 |
To a test signal |
|
4 |
YELLOW |
Input Signal 4 |
To a test signal |
|
5 |
GREEN |
Input Signal 5 |
To a test signal |
|
6 |
BLUE |
Input Signal 6 |
To a test signal |
|
7 |
PURPLE |
Input Signal 7 |
To a test signal |
|
CLK |
GRAY |
Not used |
Do not connect |
|
+5V |
RED |
+5V power supply from USB cable (up to 300mA) |
To your circuits +5V supply line if you need the USBee to supply +5V (do NOT connect if you already have +5V on your board) |
|
+3.3V |
WHITE |
+3.3V regulated power supply (up to 300mA) |
To your circuits +3.3V supply line if you need the USBee to supply +3.3V (do NOT connect if you already have +3.3V on your board) |
|
GND |
BLACK |
Pod and power supply ground |
To you circuit ground |
The following is a step by step description of a sample logging session. Follow along to get a quick understanding of the Data Logger software.
1. Now choose "Start|Programs|USBee|Data Logger" to start the data logger program.
2. You will see the following screen
3. Notice the 8 signal lines that include the bit number (0-7), the Signal Name, and the current signal level of each signal lead. Touch one signal lead (Bit 0 BLACK) to the GND lead (BLACK) and watch the Now level go to 0. Disconnect it and you will see the Now level go back to 1. This is due to the internal pull-up resistor on Bit 0.
4. Let's start a logging session. Press the "Start Logging" button and you will see the following menu:
5. Edit the Signal names to your match the names of the signals you are connecting the corresponding leads to.
6. Select the "Sample Interval in seconds". This can be from 0.25 to 300 seconds. For this example, choose 1 second.
7. Press "Start Logging" and you will see the following screen.
8. In the "Look In" window, select the directory of where you would like to put the Log file that is about to be created. Also, in the "File Name" box, type the filename you want to save the logged data under. Click "Open".
9. You will start to see the data being logged as in the following screen.
10. When 50 samples have been logged, press the "Stop Logging" button.
11. You will see the following screen that shows the logged data in the List View.
12. In the Menu at the top of the window, select "View|Waveform". You will then be switched to Waveform View that allows you to see each signal as a digital wave. You can use the scroll bars and zoom in and out as in the following picture.
13. In the Waveform Window, click the Left button to drop the X Cursor and click the Right button to drop the O Cursor. Notice at the top of the screen the values of the signals and sample times at each cursor and between cursors.
14. In the Menu at the top of the window, select "View|D to A". You will then be switched to D to A View that allows you to see all 8 signals represented as an 8 bit value which is then plotted as a single signal. You can use the scroll bars and zoom in and out as in the following picture
15. Finally, from the menu select "File|Print Current Window". This will send the current Data Logger window to your default printer exactly as it appears on your screen.
File - New Logging Session - Starts a new logging session
File - Open Existing Log File - Prompts for a filename of an existing log file. Then loads and displays the data
File - Save As - Prompts for a new filename and saves the data to the file
File - Print Current Screen - Prints the current screen to the default printer. To change printers, use the Windows® Printer Settings
File - Print Log Data - Prints all or part of the log data in a listing format
File - Exit - Exits the program
View - List View - Changes the view mode to the List mode
View - Waveform View - Changes the view mode to the Waveform mode
View - D to A view - Changes the view mode to the D to A mode
View - Search for Pattern - Searches the logged data for a pattern and places the found data at the cursor
View - Color Waveforms - Colors the waveforms and list data for easier reading
View - Black and White Waveforms - Changes data to black and white (for printing on some printers)
Data Logging - Start Logging - Starts a new loggin session
Data Logging - Stop Logging - Stops the current logging session
Help - Display the Help text
You can find more information at www.usbee.com including Frequently Asked Questions (FAQ). If you can not find your answers on the web site, you can contact CWAV technical support at support@usbee.com. Please provide a detailed description of your problem and steps needed to reproduce the problem and our support staff will promptly suggest solutions.
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8 Digital Input Signals
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Vil = 0.6V Vih = 1.4V
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Input resistance: 1Mohm
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Variable sample rates from about 0.25 to 300 seconds per sample. Actual sample time may vary depending on PC latency and CPU availability.
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Data Logger display capability is up to 32765 samples. Although log files can have unlimited sizes, you can only display the first 32765 samples using the Data Logger Software. You can import the log files into Excel to view more samples.
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+5V Output Voltage depends on your PC. Typically this level is +5V +/- 5% but can vary if there are many USB devices connected to the USB bus.
-
+5V Max Current: 300mA
-
+3.3V Output Voltage: +3.3V +/- 1%
-
+3.3V Max Current: 300mA
Copyright(c) 2002 CWAV. All rights reserved.
support@usbee.com
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