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8
TIMEPULSE1
- / O
7
EXTIN0
6
NC
5
SDA2
4
SCL2
3
TXD1
2
RXD1
1
GND
Table 5: Connector pin description for EVK-M8QCAM/M8CCAM
4.3.9 LED
On the mother board of the unit, a single blue LED shows the time pulse 1 signal. The LED starts flashing one
pulse per second during a GNSS fix. If there is no GNSS fix, the LED will only light, without flashing.
4.3.10 Backup Battery
There is a backup battery in the evaluation unit. This is necessary to store orbital information between operations
and to enable faster start-up. It is a RENATA 3.0 V Li / MnO² battery of the type CR2450. The battery has a rated
capacity of 540 mA. The battery operating temperature range is -40 °C to +85 °C.
In case the built-in backup battery runs low or empty after a long storage period, purchase the above described
battery for replacement.
CAUTION! RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF
USED BATTERIES ACCORDING TO THE INSTRUCTIONS!
RISK OF SHORT CIRCUIT WHEN TOUCHING THE BATTERY WITH CONDUCTING PARTS!
4.3.11 GNSS Configuration
The concurrent EVK-M8QCAM and EVK-M8CCAM support the GPS, QZSS, GLONASS, Galileo and BeiDou
constellations.
The GNSS to be used can be configured on u-center (View Messages View then UBX-CFG-GNSS). For more
information, refer to the u-center User Guide [4] and the u-blox 8 / u-blox M8 Receiver Description including
Protocol Specification [3].
1
Time pulse not available in all EVK versions. Please refer to section 4.3.4 on how to check availability of Time pulse 1 on your EVK.
UBX-14002462 - R07
- / 3.3V
Time pulse 1
I
3.3 V
External interrupt input
-
-
Not Connected
I/O
3.3 V
DDC Data
I/O
3.3 V
DDC Clock
O
3.3 V
Serial Port
I
3.3 V
Serial Port
I
-
Common ground pin
Early Production Information
1
EVK-M8CAM User Guide
Device description
Page 12 of 24
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