unicorecomm UM220-IV N Navigation and Positioning Module Evaluation Kit User Guide

unicorecomm UM220-IV N Navigation and Positioning Module Evaluation Kit

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Foreword

This document provides information of Unicore’s UM220-IV N evaluation kit (EVK). It can be used together with UPrecise_User Manual.
Target Readers
This manual is written for technicians who are familiar with GNSS modules. It is not for general readers.

Overview

• UM220-IV N evaluation kit (hereinafter referred to as EVK) is mainly used to test and evaluate the function and performance of the UM220-IV N module for user convenience.
• The delivered package contains:

Table 1-1 UM220-IV N EVK Package

EVK Introduction

The figure below shows the appearance of the UM220-IV N EVK Suite.

Interfaces & Indicators

• The interfaces and indicators on UM220-IV N EVK is shown below. For a detailed description, see Table 3-1.

Table 3-1 Interfaces & Indicators on UM220-IV N EVK

Interface/ Indicator|

Type

|

Description

---|---|---
S1| Reset| Reset the module by inserting and removing the jumper cap
S2| Antenna feed| Control the antenna feed on and off by the jumper cap

L1

|

Power/1PPS indicator

| The indicator lights up when powered on, and flashes when the 3D positioning is effective.
ANT| RF signal input connector| Antenna signal input

FWD

|

Direction signal connector

| Reserved for odometer directional signal input. UM220-IV N EVK does not support this interface.

L2

|

Speed pulse signal indicator

| Reserved. The indicator flashes when receiving the speed pulse signal. UM220-IV N EVK does not support this interface.

SPD

| Speed pulse signal connector| Reserved for odometer speed pulse signal input. UM220-IV N EVK does not support this interface.
USB| Micro-B USB connector| Power supply (+5V) and data communication
SD-card| SD card slot| Insert an SD card

UART

| Communication DB9 connector| Backup serial communication interface with RS232

Installation & Configuration

Installation

• Step 1: Make sure to take full anti-static measures, such as wearing anti-static wrist straps and grounding the workbench.
• Step 2: Select the GNSS antenna with appropriate gain (the GNSS systems and frequencies supported by the antenna should be in line with the module), fix it in the non-blocking area, and connect the antenna to the ANT port on the EVK.
• Step 3: Connect the EVK to the PC using the Micro-B USB cable.
• Step 4: Open the UPrecise software on the PC.
• Step 5: Configure the receiver through UPrecise to display the constellation view, data stream, tracking status, etc. For more information, please refer to UPrecise_User Manual.

SD Card Instructions

• There is an SD card slot on the UM220-IV N EVK, which is used for data storage and firmware upgrade.
• You can also use UPrecise to store data and upgrade the firmware. For more information, see UPrecise_User Manual.

Contents of the SD Card Folder

• Before using the SD card, you need to copy the zipped folder “UM220-IVN_
• EVK_Suite_V2.0_sdcard” to the card. The folder contains the following items:

1. The “bootloader” folder contains the loader file for the firmware upgrade.
   • Unicore has already provided the loader file, which can be used directly.
2. The “firmware” folder is used to store the firmware file.
3. The “Log” folder is used for data storage.
4. The “config.ini” is the configuration file, of which the contents are as follows:

Table 4-1 Description of the config.ini File

SingleFileSize = 512000000

| The size of a single file.

If the file size exceeds the specified number, a new file will be created. (Hexadecimal format is not supported; please convert the size to a decimal number.)

StartRecordStyle = new

| The recording style after starting up (new or append): Append = log data in the existing file;

New = log data in a new file

WorkBaudrate = 115200| The working baud rate of the UM220-IV N module
LogFileName = log| The name of the log file

update = 0

| 1 = Upgrade the firmware;

0 = Do not upgrade the firmware

Data Storage Instructions

• Step 1: Insert the SD card into the PC, and copy the zipped folder “UM220-IVN_ EVK_Suite_V2.0_sdcard” to the card.
• Step 2: Unzip the folder and open the “config.ini” file, then set the “update” value to 0, set the “WorkBaudrate” the same as that of the UM220-IV N module and set other parameters as needed (see Table 4-1 for more information).
• Step 3: Remove the SD card from the PC, insert it into the EVK, and power on the EVK1.
• Step 4: Wait for a while and you can get the logged data in the SD card. During the process, you may use the Micro-B USB cable to connect the EVK to PC in order to check the status of data transmission with a port monitor tool.

Firmware Upgrade Instructions

• Step 1: Insert the SD card into the PC, and copy the zipped folder “UM220-IVN_ EVK_Suite_V2.0_sdcard” to the card. Unzip the folder and open “bootloader” to make sure that it contains the loader file. Then, put the firmware file2 in the “firmware” folder.
  • For the bootloader and firmware folders, only one file can be stored in each folder.
• Step 2: Open the “config.ini” file, and set the “update” value to 1.
• Step 3: Remove the SD card from the PC, insert it into the EVK, and power on the EVK.
• Step 4: During upgrade, the indicator L1 is off. After the upgrade is finished, the light turns on. You may also use the Micro-B USB cable to connect the EVK to PC in order to check the status of upgrade with a port monitor tool.

1. If the antenna is not connected, the EVK will output debug information; if you need the positioning information, please connect the antenna before powering on.
2. Please contact Unicore to get the latest firmware.

Unicore Communications, Inc.

• F3, No.7, Fengxian East Road, Haidian, Beijing, P.R.China, 100094.
• www.unicorecomm.com.
• Phone: 86-10-69939800.
• Fax: 86-10-69939888.
• info@unicorecomm.com.

Copyright© 2009-2023, Unicore Communications, Inc. Data subject to change without notice.

References

• 和芯星通北斗导航芯片-北斗导航模块北斗高精度定位板卡国内外领先的芯片、OEM板卡和产品解决方案提供商
• 和芯星通北斗导航芯片-北斗导航模块北斗高精度定位板卡国内外领先的芯片、OEM板卡和产品解决方案提供商

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