sensonor STIM318 User manual
USER MANUAL
EvaluationTools
STIM318 Evaluation Kit - USB
DOK445 rev.1
1/25 2020
Table of contents:
1EVK FEATURES........................................................................................................................................................2
1.1 GENERAL DESCRIPTIONS........................................................................................................................................3
1.2 CONFIGURABLE AND READABLE PARAMETERS .........................................................................................................3
2KIT CONTENTS.........................................................................................................................................................4
3SYSTEM REQUIREMENTS.......................................................................................................................................4
4GETTING STARTED..................................................................................................................................................5
4.1 USB KIT INSTALLATION OF FTDI SERIAL DRIVER......................................................................................................6
4.2 VERIFICATION AND CONFIGURATION OF SERIAL DRIVER............................................................................................6
4.3 INSTALLATION OF PC SOFTWARE............................................................................................................................8
5CONNECTING THE STIM TO YOUR PC................................................................................................................11
6FIRST PC SOFTWARE START-UP ........................................................................................................................12
7INTRODUCTION TO PC SOFTWARE ....................................................................................................................17
7.1 PANELS OVERVIEW ..............................................................................................................................................17
7.1.1 Service mode panel ...................................................................................................................................17
7.1.2 BTO panel..................................................................................................................................................17
7.1.3 Measure panel ...........................................................................................................................................18
7.1.4 Logging panel.............................................................................................................................................18
7.2 MAIN PANEL MENU...............................................................................................................................................19
7.3 NORMAL MODE PANEL DESCRIPTIONS ...................................................................................................................19
7.4 SERVICE MODE PANEL DESCRIPTIONS...................................................................................................................19
7.5 BTO MODE PANEL ...............................................................................................................................................20
7.6 MEASURE PANEL DESCRIPTIONS...........................................................................................................................20
7.7 LOGGING PANEL ..................................................................................................................................................22
7.8 PARAMETERS PANEL............................................................................................................................................23
7.9 MESSAGES FROM THE PROGRAM..........................................................................................................................24
USER MANUAL
EvaluationTools
STIM318 Evaluation Kit - USB
DOK445 rev.1
2/25 2020
1 EVK features
USB connectivity to PCs/ laptops
Up to 2000Hz sampling rate supported
Temperature measurements supported
Service mode access
oFull IMU information
oFull IMU configuration capability
oDetailed IMU diagnostics
oHelp section
Measure panel
oData presentations and save data to file capability
oCustom scale and zoom functions
oCRC check
Logging panel
oSupport for any measurement duration, only limited
by hard drive, available memory and processor capacity of PC
oVarious stop criteria for measurements available ('Manually', 'No. of samples' or 'Time elapsed')
Measurements of up to 4 IMUs simultaneously supported (requires additional cables depending on the type of
evaluation kit)
USB-kit –important notice!
The USB kit supports certain distinct bit rates only. The following bit rates have been tested and verified:
Approved bit rates
w/USB kit
3 000 000 bps
2 000 000 bps
1 500 000bps
1 411 765 bps
Most settings below
1 300 000 bps
USER MANUAL
EvaluationTools
STIM318 Evaluation Kit - USB
DOK445 rev.1
3/25 2020
1.1 General descriptions
The evaluation kit provides measurement and configuration access to STIM318 IMU. Configuration, graphical result
presentation and save data to file functions are supported. The single voltage supply required for the IMU operation is
provided from an USB port.
This evaluation kit provides the alternative, portable, solution, e.g. for laptops, and is an excellent choice for IMU
configuration and shorter measurement series.
The kit includes a USB-RS422 converter from Future Technology Devices International which is integrated in one of
the communication cable USB connectors.
The USB-RS422 converter cable is a USB to RS422 levels serial UART converter cable, incorporating FTDI’s
FT232RQ USB to serial UART interface IC device which handles all the USB signalling and protocols. The cable
provides a fast, simple way to connect IMUs with a RS422 interface to USB.
Each USB-RS422 cable contains a small internal electronic circuit board, utilising the FT232R, which is encapsulated
into the end of the (communication) cable. The integrated electronics also include the RS422 transceiver plus Tx and
Rx LEDs which give a visual indication of data traffic on the cable.
Table 1: Features of USB kit.
Feature
Available
Portability across PC-s
Yes (custom SW installation required)
Hardware installation required?
No
Gyro output available?
Yes
Accelerometer and inclinomter output
Yes
TOV and External trigger available?
Yes (Break-out-cable)
Transmission rate supported
Up to 3Mbit/s
4 GND
1 VSUP
AUX GND
AUX+
AUX-
TOV
ExtTrig
RxD+
RxD-
TxD+
TxD-
10
2
1
9
15
8
13
12
7
4
11
6
14
C-USB
P-USB
Break-out
Micro-D
Figure 1: Wiring diagram.
1.2 Configurable and readable parameters
USER MANUAL
EvaluationTools
STIM318 Evaluation Kit - USB
DOK445 rev.1
4/25 2020
Configurable parameters in Service Mode:
Output format (angular rate, increment angle, etc.)
Bias trim offset parameters
Datagram format (standard, extended, etc.)
Sampling rate
Bandwidth/ Low pass filter frequency
RS422 transmission bit rate
Number of stop bits in datagram
Parity
Line/ Datagram termination
Configurable parameters in Bias Trim Offset Mode:
Gyro bias offset
Accelerometer bias offset
Inclinometer bias offset
Readable parameters:
Part number
Serial number
Firmware revision
Hardware revision
IMU diagonistics
Detailed diagnostic information includes RAM and flash checks, stack handling checks, status of internal voltage
supply references, and various parameter reports for each measurement axis are available from the supported
SERVICE mode.
Note: Time of Validity (TOV) and external trigger functionalities of STIM318 are not supported by the EVK PC-
software.
2 Kit contents
USB to RS422 interface cable with USB power supply connector
Memory stick with
oPC software, STIM318
oFTDI CDM20824 serial driver for Windows and
oUser manual for evaluation kit
Allen Wrench for fixing connector of communication and power cable to the IMU
Hard copy of User manual
Note that the evaluation kit does not include a STIM318 IMU. This must be ordered separately.
3 System requirements
Windows XP SP2 (or later), Windows Vista, Windows 7 (32/ 64bit), Windows 10
2 free USB ports
Quad core processor recommended (when simultaneously logging data from two IMUs)
USER MANUAL
EvaluationTools
STIM318 Evaluation Kit - USB
DOK445 rev.1
5/25 2020
4 Getting started
Preparing your system involves the following steps:
FTDI Serial Driver installation
Serial Driver verification
EVK PC Software installation
USER MANUAL
EvaluationTools
STIM318 Evaluation Kit - USB
DOK445 rev.1
6/25 2020
4.1 USB kit Installation of FTDI serial driver
To install the drivers for the FTDI serial driver under Windows, follow the instructions below:
Connect the USB-RS422 plug to a spare USB port on your PC.
If there is an available Internet connection, some Windows versions will silently connect to the Windows
Update website and install a suitable driver
In the event that no automatic installation takes place, please refer to the set-up guide from FTDI:
http://www.ftdichip.com/Support/Documents/InstallGuides.htm
4.2 Verification and configuration of serial driver
Launch Device Manager. See Control Panel -> Hardware and Sound -> Devices and Printers.
Verify that the driver installation has completed successfully:
Figure 2: COM port assignments for USB cable in Windows 7.
Make a note of the assigned COM port value(s) information. This will be needed later for connecting to the STIM from
the PC software.
Right-click "USB Serial Port (COM<n>)" and select "Properties"
USER MANUAL
EvaluationTools
STIM318 Evaluation Kit - USB
DOK445 rev.1
7/25 2020
Select "Advanced" from the "Port Setting" tab.
Set the "Receive (Bytes)" and Transmit (Bytes) settings to 256.
Press OK twice.
The computer may have to be restarted for the changes to take effect.
USER MANUAL
EvaluationTools
STIM318 Evaluation Kit - USB
DOK445 rev.1
8/25 2020
4.3 Installation of PC software
Install the PC software by running "setup.exe" found on the included memory-stick or downloaded from Sensonor web
page. Follow the on-screen instructions to complete the installation. See the following figures for guidance.
The PC software also can be downloaded from the Sensonor support site. Check this site regularly for updates.
Figure 3: PC software installation (1 of 4). Installer initializes
USER MANUAL
EvaluationTools
STIM318 Evaluation Kit - USB
DOK445 rev.1
9/25 2020
Figure 4: PC software installation (2 of 4)
Figure 5: PC software installation (3 of 4)
USER MANUAL
EvaluationTools
STIM318 Evaluation Kit - USB
DOK445 rev.1
10/25 2020
Figure 6: PC software installation (4 of 4). Installation complete.
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