u-blox EVK-M8BZOE, Руководство пользователя

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EVK-M8BZOE User Guide
UBX-17053592 - R03 Early Production Information Product description
Page 6 of 33
1 Product description
1.1 Overview
The EVK-M8BZOE evaluation kit simplifies the evaluation of ZOE-M8B, the u-blox ultra small super low power M8
concurrent GNSS S-LGA SiP (System-in-Package). The built-in USB interface provides both power supply and high-
speed data transfer, and eliminates the need for an external power supply. The u-blox evaluation kits are compact,
and their user friendly interface and power supply make them ideally suited for use in laboratories or vehicles.
Furthermore, they can be used with a PDA or a notebook PC, making them the perfect companion through all
stages of design-in projects.
1.1.1 Evaluation kit versions
Evaluation Kit Description Suitable for
EVK-M8BZOE
(PCB version C) u-blox M8 low power GNSS evaluation kit with ZOE-M8B SiP ZOE-M8B
Table 1: List of available evaluation kit
The version identification of the evaluation kit is printed on the PCB board.
1.1.2 Features
•
Supports GNSS performance evaluation with simulator and active antenna
o
2 SMA connectors; one for simulator use case, one for external active antenna use case
•
Populated optional flash
o
Configuration can be saved permanently
o
Logging can be done
o
AssistNow
TM
Offline data can be saved
o
Optimal performance of AssistNow TM Autonomous
•
Current measurement shunt resistors and corresponding measurement pins
o
1
Ω
shunt resistor makes it easy to convert measured voltage to actual power consumption
o
Set of jumpers to bypass these shunt resistors for more advanced power measurements
•
RTC crystal and backup supply to evaluate backup, hot start, and warm start functions
o
100
Ω
shunt resistor to measure backup power consumption
o
Super capacitor of 1 F for backup supply
•
USB 2.0 connector for both power supply and data transfer
o
ZOE-M8B SiP does not support USB connection. For this reason the EVK-M8BZOE board
contains a separate Silicon Labs CP2102 USB to UART Bridge
•
RS-232 DB9 connector and digital connector for easy interfacing with UART, SPI and DDC (I²C) and for
evaluating other advanced scenarios
1.2 Kit includes
•
EVK-M8BZOE evaluation board
•
Active GNSS antenna with a 3 m cable
•
USB cable
A plastic cap is attached on the top of the ZOE-M8B GNSS S-LGA SiP in EVK-M8BZOE. The purpose of the
cap is to prevent air flow at ZOE-M8B.