Table of Contents
Advertisement
The output of the battery charger is connected to two Onsemi NCP690MNxx, 1 A, linear regulators
(U7 and U8). One regulator provides a 3.3 V fixed output, while the other has an adjustable output set
to 3.75 V. The 3.3 V regulator supplies the complete board except for the cellular modem, which is
supplied by the adjustable output.
2.4.3
LEDs
The C214 board comes with several LEDs that provide visual feedback to the user related to power
status and module activities.
LED
Description
Charge
indicates charge status of battery.
ON: Battery is charging.
OFF: Charge complete.
VIN
Powered by the charger output. Lit when the supply voltage is applied to the linear
regulators.
3.3V
Powered by the output of the 3.3 V linear regulator.
USB
USB status.
ON: indicates an USB connection between the board and the computer.
STATUS
NINA-W106 status (user defined). Currently programmed such as:
ON: the NINA-W106 module is powered on.
OFF: the NINA-W106 module is powered off.
RING
UART ring indicator (red) indicates an incoming ring signal. Otherwise, OFF.
ON
LARA-R6 power status (green).
ON: the LARA-R6 module is powered on.
OFF: the LARA-R6 module is powered off.
NET
LTE network status (blue).
ON: LTE network connection active.
OFF: No network connection.
Note: GPIO9 of LARA-R6 module needs to be programmed for network indication.
By default, the LED remains OFF.
RTK
RTK status.
ON – RTK fixed mode.
LED blinking – receiving and using corrections.
LED OFF – no corrections.
Geofence
Geofence status.
ON: Geofence configured.
OFF: Geofence not configured.
Note: User needs to set pin polarity and geofencing configuration registers.
PPS
PPS status (Time pulse).
The LED pulses at a rate of 1 Hz when the module has acquired valid GNSS time
data. Note: Output pulse of the LED can be further configured through related
configuration registers.
Table 1: LED functions
2.5 USB subsystem
XPLR-HPG-2 incorporates a 4-port USB 2.0 hub that connect to the various u-blox modules through
the USB port (J1) that is used for monitoring, setup, and programming. NINA-W106 UART is
connected to the USB hub through a Silicon Labs CP2102N USB to UART chip (U2).
2.6 Test points
The C214 includes test points throughout the layout to facilitate system monitoring and application
debugging.
Table 2
describes the available test points on C214. The location of all test points (TP1–
TPx) are identified in the silkscreen on the bottom side of the board, as shown in
UBX-23003719 - R02
C1-Public
Table 1
describes the functionality of each LED.
Hardware
XPLR-HPG-2 - User guide
Figure
3.
Page 14 of 32
Advertisement
Table of Contents
