16
Document MT1602P.A
© Xsens Technologies B.V.
MTi-600 series DK User Manual
4.5 External GNSS extension socket and daughter card (MTi-670 DK only)
The MTi-670-DK comes with the GNSS daughter card installed in the
GNSS extension socket
. As shown
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, the GNSS daughter card consists of a GNSS receiver
and a barometer sensor component. The barometer is not used/connected for the MTi-670-DK, since
the MTi-600 has an internal barometer. The LEDs (Power and PPS) give indication of proper functioning
of the GNSS daughter card. The supplied GNSS antenna can be connected to the SMA connector.
The MTi-600 DEV board translates the RS232 signal levels from the MTi-600 to the 3V3 UART levels
used on the extension board. This transceiver can be disabled by placing a zero-Ohm resistor on the
GNSS_Disable
resistor position (see Figure 7). In this case the GNSS pins on the
External connector
can be used to connect a RS232 level enabled GNSS receiver.
Figure 10: Top view (left) and the bottom view (right) of the GNSS daughter card
The
GNSS extension socket
has mikroBUS™ compatible pinning. This enables the user to connect
alternate GNSS daughter card modules with mikroBUS™ pinn
ing to the MTi-600-DEV. The pinning
connections for the
GNSS extension socket
are listed in Table 12. This extension only uses the 3.3V
supply pin, which is connected to the 3V3 that is generated on the MTi-600 DEV.
Table 12: Connections on UART communication GNSS extension sockets.
Pin
Mikro BUS MTi-670
Pin
Mikro BUS
MTi-670
P100-1
AN
NC
P200-1
PWM
NC
P100-2
RST
Pull-up
P200-2
INT
CLK_SYNC
P100-3
CS
NC
P200-3
TX
RxD
P100-4
SCK
NC
P200-4
RX
TxD
P100-5
MISO
NC
P200-5
SCL
NC
P100-6
MOSI
NC
P200-6
SDA
NC
P100-7
3.3V
3V3
P200-7
5V
NC
P100-8
GND
GND
P200-8
GND
GND
PPS LED
SMA connector
(active antenna)
GNSS module
Power LED
Barometer
