SL869-3DR Evaluation Kit User Guide
1VV0301266 r0
2016-11-14
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
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Page 20 of 35
Mod. 0810 2011-07 Rev.2
5.
SL869-3DR EVK Setup Requirements
5.1.
Installation and Calibration
1.
Note: If NVRAM has been erased (e.g. during flashing), initialization will be required.
2.
Place the EVK on a flat and secure surface with the power switch facing toward the front of
the vehicle and as close as possible to the center of vehicle. This will allow the gyro to
stabilize and the DR FW to store starting point parameters. Once oriented in this position, it
should remain in same direction and location to keep results consistent.
Insure a rigid mount.
3.
Connect USB from the laptop PC to the EVK port USB1, located at opposite side from the
SMA antenna connection.
4.
Connect the GNSS antenna.
5.
Turn on car and the power up the EVK.
6.
Run Telit view and establish connection to the EVK.
Note: Make sure to select correct COM port and set baud rate 115200.
See
Section 5.2 Computer Setup and Connection
for examples.
7.
Verify NMEA output activity from the EVK when powered on.
TelitView will also allow you to see and record data from the EVK output.
8.
Wait for a valid GNSS position fix.
9.
Wait (stopped) for approximately 2 minutes on a flat and level surface with the EVK and
vehicle on. Do not allow any vibration or movement during this time.
This allows the unit to initialize the yaw rate offset with reliable values.
10.
After the 2 minutes, SL869-3DR is calibrated and ready to run.
