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ACUMEN INSTRUMENTS CORPORATION
DataBridge™ SDR2-USB
Configuration Guide
revision 1.0 • 04/2009
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Copyright This document is copyrighted by Acumen Instruments Corporation with all rights reserved. No part of this document may be reproduced in any form without prior written consent of Acumen Instruments Corporation. Copyright © 2009 by Acumen Instruments Corporation. All rights reserved. Disclaimer This manual has been thoroughly reviewed for accuracy, and every effort has been made to ensure that the information is accurate and complete. However, different versions of this product h
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SDR2-USB Configuration Guide rev 1.0 Getting Started Table of Contents 1. Getting Started ..................................................................... 5 1.1 Overview ................................................................................................. 5 1.2 Before you start ...................................................................................... 6 1.3 A quick guide to the DataBridge SDR2-USB .......................................... 6 1.4 Deploying
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Getting Started SDR2-USB Configuration Guide rev 1.0 6. Service and Support ........................................................... 27 6.1 Exception Codes .................................................................................. 27 Exception 2: Root Directory Full ........................................................ 27 Exception 3: Disk Full ........................................................................ 27 Exception 4: Bad Boot Record ..........................
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SDR2-USB Configuration Guide rev 1.0 Getting Started 1 1 1. Getting Started 1.1 Overview DataBridge SDR2-USB serial data recorders record RS-232 serial data to industry-standard mass storage using an Microsoft Windows™-compatible FAT file format. The SDR2-USB is equipped with a USB 2.0 socket and is designed for use with USB storage media such as USB flash memory keys. During Record mode, the SDR2-USB’s data port accepts RS-232 serial data NOTE: The data from your
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Getting Started SDR2-USB Configuration Guide rev 1.0 1.2 Before you start Before you start, be sure you have the following items available: • DataBridge SDR2-USB • A 5-30VDC power supply • RS-232 DB9 serial cable • The device you wish to record from (serial data source) 1.3 A quick guide to the DataBridge SDR2-USB On the front of the SDR2-USB are the USB "A" socket, record button, and LED indicators. The SDR2-USB can be toggled in and out of record mode using the record button loc
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SDR2-USB Configuration Guide rev 1.0 Getting Started On the rear is the male nine-pin D-subminiature connector (DB9M) for the data port. The 5 to 30 VDC power input is also located on the rear panel. From serial data source 5 to 30 VDC Power Figure 1.2. SDR2-USB Rear Panel. 1.4 Deploying the DataBridge SDR2-USB 1.4.1 Connecting power to your SDR2-USB The SDR2-USB starter kit includes a 120VAC power supply that connects via the rear panel. If you use an alternate power source, it shou
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Getting Started SDR2-USB Configuration Guide rev 1.0 Figure 1.3. Creating setup.txt. Once the file is created, double-click it to open the file in Windows Notepad and enter “DataPortBaud=9600” as shown in Figure 1.4. This tells the SDR2-USB to communicate with your data source at 9600 baud. The baud rate for your serial data source may differ from 9600 bps. Figure 1.4. Editing a simple setup.txt file. Close Windows Notepad, then right-click the USB device’s drive letter and click
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SDR2-USB Configuration Guide rev 1.0 Configuring the DataBridge SDR2-USB 2 2 2. Configuring the DataBridge SDR2-USB Now that you’ve successfully edited the SDR2-USB’s setup.txt file, you are ready to configure it for use with your serial data source. Using the setup file, you can: • Set the date and time. • Configure handshaking and data word format for your device. • Specify a directory to record files to. • Specify a filename for recording. • Select how and when
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Configuring the DataBridge SDR2-USB SDR2-USB Configuration Guide rev 1.0 2.1 Comments Within the setup.txt file, it is useful to record comments documenting the settings chosen and why some configuration choices were made. Comments are also useful for temporarily disabling setting(s) for the purposes of testing multiple settings. Figure 2.1. Use of comments to switch between GPS receivers. To create a comment line in the setup file, place to forward slashes (“//”) at the beginning
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SDR2-USB Configuration Guide rev 1.0 Configuring the DataBridge SDR2-USB Figure 2.2. Setting date and time. Step 2: Insert USB storage device and apply power Eject the USB storage device and remove it from the computer. Insert the USB device into the SDR2-USB, and connect power. The SDR2-USB will display its usual flashing pattern, then read the setup file and turn on all 4 front-panel LED indicators. If precise setting is desired, monitor a stopwatch or computer clock. Step 3: Sy
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Configuring the DataBridge SDR2-USB SDR2-USB Configuration Guide rev 1.0 Hardware handshaking prevents a data source from sending data when the SDR2-USB is not ready to receive it – the SDR2-USB can “shut off” the transmitting data source if, for example, the USB storage media is slow or not present. Be sure that your serial data source and the SDR2-USB use the same handshaking settings. If your data source monitors the handshaking signals but the SDR2-USB doesn't send the appropriate s
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SDR2-USB Configuration Guide rev 1.0 Configuring the DataBridge SDR2-USB Figure 2.3. Specifying filename and folder for recording. 2.5 Configuring file creation behavior Be default, the SDR2-USB creates a new file in the recording folder every time recording is initiated, generating a new, unique filename based on the previous filename. To instruct the SDR2-USB to always append data to the existing file when recording starts, add the line Append=1 to the setup file. The SDR2-USB can
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Configuring the DataBridge SDR2-USB SDR2-USB Configuration Guide rev 1.0 feed is received by adding the line TimestampTrigger=10. The recorder will be “armed” to time stamp when a line feed is received, then insert a stamp when the next character is received— at the start of the next line. It is common to encounter a data source that periodically outputs “bursts” of data with time gaps between the bursts. For example, a GPS receiver outputs a position report once/second, then sits idle
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SDR2-USB Configuration Guide rev 1.0 Operations 3 3 3. Operations 3.1 Setup file reading The setup.txt file on the USB storage device is read only when power is applied to the SDR2-USB. Once read, all settings found in setup.txt are retained by the recorder. 3.2 Record mode operation When you press the record button, the SDR2-USB searches for the current file specified in the setup file, creates it if necessary, and opens it. Once the SDR2-USB has successfully o
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Operations SDR2-USB Configuration Guide rev 1.0 3.2.2 Stopping recording Incoming data is written to the open file as it is received until you stop recording by pressing the record button. The SDR2-USB then closes the file, updates its directory entry (recording file size, date, and time), and returns to stop mode. 3.2.3 Device removal while recording Do not terminate recording by removing the USB storage device without stopping the recorder, or disk corruption may occur. 3.2.4 Power
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SDR2-USB Configuration Guide rev 1.0 Operations Delete files on the target media using your computer or replace the media, then insert and press the record button to record data normally. 3.2.7 Formatting the storage media If you have purchased a USB storage device, you may need to format it NOTE: If your USB using MS-DOS™, Windows 95/98/ME™, Windows NT/2000/XP™, or storage media was another operating system that supports the FAT file system. included with SDR2-USB, it is The SDR2-
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Operations SDR2-USB Configuration Guide rev 1.0 3.3 Lithium battery maintenance The SDR2-USB's real-time clock uses a small lithium battery to maintain time when external power is unavailable. The life of this battery should exceed 5 years. If you find your SDR2-USB is not keeping time correctly when power is lost, you may need to replace the battery. If necessary, replace the battery with a Panasonic CR2032, or equivalent, making sure the positive (+) face is in contact with the batter
