EVK-M10QSAM - User guide
Pin no.
Pin name
I/O
Level
Description
9
P2B
O
-
Second junction for battery backup current measurement.
8
TIMEPULSE
O
3.3 V
Timepulse output.
7
EXTINT0
I
3.3 V
External interrupt signal. Can be used for time mark feature,
time aiding, and wakeup from power save modes.
6
NC
-
-
Not connected.
5
SDA2
I/O
3.3 V
Data input / output for the I2C interface.
4
SCL2
I
3.3 V
Clock input for the I2C interface.
3
TXD1
O
3.3 V
Serial port transmit.
2
RXD1
I
3.3 V
Serial port receive.
1
GND
I
–
Recommended common ground pin.
Table 4: EVK-M10QSAM 14-pin connector pin description
Figure 3: EVK-M10QSAM 5.0 V DC power supply example
When using the 3.3 V digital interfaces with your application (e.g. I2C), a cable length less than
25 cm is recommended.
4.1.3 USB
The USB connector in the evaluation kit can be used for both power supply and communication. The
easiest way to evaluate the EVK-M10QSAM operation is to connect the EVK to a PC with the USB
cable and then to use the u-center 2 tool to configure and monitor the GNSS functions. The USB
connector is internally connected to a USB-to-Serial converter that connects to the UART interface
of the u-blox M10 receiver on the EVK. This allows the USB connector to be used for communication
as well.
can be used for USB communication with the receiver.
When the EVK is connected to the PC, Windows creates a virtual COM port to the PC. This newly
created virtual COM port needs to be selected in the u-center 2 evaluation tool for communicating
with the receiver. EVK-M10QSAM supports USB-to-UART communication speeds up to 921600
baud.
4.1.4 UART
The EVK unit includes two options for the UART connection, via the RS-232 serial port or the 14-
pin connector. By default, the UART communication speed is set to 9600 baud and EVK-M10QSAM
supports speeds up to 921600 baud.
UBX-22026860 - R01
4 Device description
Page 10 of 29
C1-Public
