| LE-620HS |
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Japanese model |
| LE-620HS-E |
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World wide model |
LE-620HS-E is a USB2.0 protocol analyzer which
connects with a PC, and analyzes "USB Protocol." This model supports HIGH/FULL/LOW Speed and continuously records USB2.0/1.1 data on the hard disk of PC in
real time, and those data are displayed intelligibly on the PC
screen.
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New version (Ver. 3.2.0.0) released. |
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For users using old version (Ver. 3.1.2.1 or before), download a new version from the support
page. |
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The trial version is available for downloading from the support
page. |
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Supports 480Mbps |
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Easy to use, and reasonable
cost |
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256MB memory |
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FPGA
composition |
HIGH/FULL/LOW Speed Modes Automatic Identification
| Without affecting the communication line
carrying data between the analyzer and target devices,
the LE-620HS-E internally records large amounts of data
and simultaneously transfers it to a PC via USB. The
LE-620HS-E automatically detects the speed of the target
devices (480/12/1.5 Mbps), so a speed setting is
unnecessary. And, if the device connects through a hub
of differing speed, measurement can start by simply
pressing the space key of the PC's keyboard. |
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(*1)PC for analysis
PC on which the included analysis software has
been installed. If the target host device is a PC
that meets the hardware requirements for the
LE-620HS-E, the PC can also be used for
analysis.
PCs with a USB2.0 port which supports
HIGH-speed are recommended.
If you use a USB
port for FULL-speed, capturing up to 256MB is only
guaranteed.
(*2)USB cable
It is recommended that the length of the two
cables be shorter than the maximum cable length of
USB standard.
Continuously Record up to a Max,20Gbyte
LE-620HS-E continues to transfer USB data to the analysis
PC via a USB port and records the log file of Max. 2Gbytes
into the PC's hard disk drive. Also, the repeat mode allows to
use up to 10 log files as the ring buffer and to continuously
record the log up to 20Gbytes. Since you can scroll up the log
displayed on the screen during measuring to find old log, it
is effective in the analysis of the non-specific trouble which
rarely happens.
Intelligible Display
Packets are intelligibly displayed in transaction unit
during measurement. PING and the split transaction at high
speed can be checked. This model can translate and clearly
display not only the standard device request and descriptor
but also each descriptor of Communication device class and
HUB/HID/Audio/Communication class-specific device request;
therefore, you can understand difficult USB protocol easily
and intuitively.
| (1) |
Displays plural packets in one
line in one transaction unit |
| (2) |
Displays SOF number (Start of Frame). High speed shows the micro frame as "(1/8)" - "(8/8)". Because low speed does not generate SOF packets, nothing appears in this column. |
| (3) |
Displays Token Packet (Token type / address / end point). |
| (4) |
Shows the first eight bytes only
of a data packet. To display the rest of it, click the +
mark. |
| (5) |
Handshake packet. |
| (6) |
Displays time stamp. (elapsed time) |
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| (7) |
Records and displays the USB bus
states. |
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| (*) |
When plugging and unplugging the USB cable
connecting to devices, the data displayed may not
meet the actual bus state of the target device
because D+/D- signal state of USB bus becomes
unstable. |
|
| (8) |
Marks the user-defined
transactions from 1 to 99. Marking makes it possible to
jump the marked transactions. |
| (9) |
Displays the speed for each transaction.
Full-speed device <-> Hi-speed device <-> USB stream scope <->USB HOST PC.
Full-speed device is converted to Hi-speed device by Hi-speed HUB. |
| (10) |
Highlights a transaction which
you select with a mouse. (Press SHIFT + CTRL to select more than one transaction.) |
- Displays the content / meaning of device request.
- Displays the DATA packets in ASCII.
- Opens the device request window by clicking >> mark on the display.
The shape of tree shows the layerde stracture of a descriptor.
- Blinks the corresponding data in the data packet by selecting the item of the device request window.
Device Request Window
- Button for opening and closing the tree.
- Button for copying the contents of the Device Request/Descriptor to the clip board.
- Button for displaying the previous/next Device Request.
- Button for pinning the Device Request on the screen.
- Button for adjusting the depth of the color.
Highly Accurata Time Stamp Function
The built-in hardware timer of the analyzer records
the time stamps at the packet start and end at a
resolution of 16.7 ns based on the log start point as a
reference point*1. The time stamps are displayed in the
elapse time column and packet position bar. If the
cursor points the packet, the time stamps are displayed
on the tool tip window as well.
*1 The time stamp count
is reset to zero approximately five hours after the
start of the log and the time stamp count is
continued. |
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Real-time Filter
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The real-time filter reduces the quantity of log
file data and improves the efficiency of analysis. It is
possible to specify not to capture continuous NAK
response transaction such as IN-NAK and OUT-NAK. And can
specify particular addresses and end points under AND
condition in order to record only transactions which
meet the condition, or to eliminate them from the
targets of recording. |
Powerful Sequential Trigger
| It is possible to specify up to
16 trigger conditions (e.g., trigger conditions of
particular transfer data and external signal conditions)
in combination with actions to be taken at the time the
conditions are satisfied, and execute the actions in
sequence. Furthermore, this feature enables logging
control in synchronization with external signals and
linking with other measuring instruments by turning an
external trigger signal on detection of particular data,
thus making significant improvement in the efficiency of
program development. |
[ Packet trigger setting example 1
]
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[ Error trigger setting example 2 ]
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[ External trigger setting example 3 ]
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Upgraded Off-Line Analysis Capability
Data can be easily found amongst the huge volume of
recorded data by using the filter and search features.
Development efficiency is boosted to a higher level by using
color-coded customization features for packet types and
mark/jump features.
[Filter Condition Setting screen]
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[ Search condition setting
window example ]
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[ Search address/end point combination
condition example ]
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Statistical Infomation Function
It is possible to total and check the number of
transactions, the number of transfer bytes, and the average
transfer rate in the measurement log. The totaling range can
be specified with the mouse or the mark feature. The results
of totaling can be pasted to the table calculation software
through the clipboard.
Target area
| Entire
transactions/packets |
| Totals
all the measured data. |
| Selected |
Displays
this choice only when
transactions are
selected. |
| Mark * - * |
| Displays
[Mark * - *] only when
transactions are
marked. |
|
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Displaying/Hiding the
Packets
| You can display or hide each
type of the packets from the pop-up menu which appears
by right-clicking on each item of the packets. |
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Copying data to the spreadsheet
applications
By selecting the necessary range and
copying it to the clipboard with the Ctrl and C keys,
you can paste it to another application such as
Excel.
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Arranging data
Clicking the head of the table
helps arrange data in ascending or descending
order.
Initial screen |
Ascending |
Descending |
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Practical Use of Measurement Data
Copying and pasting the specified range of stored data
enables you to save in the text format. If you send monitored
data to a remote place, only monitored data can be saved in
the text file. With analysis software, it is possible to
analyze monitored data in detail from a PC at the remote
place.
Updating to Firmware
You can download the latest version of software from
our website to take advantage of the latest
functions and features
