Neoway N75 EVK Bedienungsanleitung

EVK User Guide

Issue 1.0 Date 2019-10-16

N75 EVK User Guide

No part of thisdocument may bereproduced or transmitted in any form orby any means withoutprior written

consent of Neoway Technology Co., Ltd.

is the trademark of Neoway Technology Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective

holders.

Notice

This document provides a guide for users to use N75.

This document is intended for system engineers (SEs), development engineers, and test engineers.

THIS GUIDE PROVIDES INSTRUCTIONS FOR CUSTOMERS TO DESIGN THEIR APPLICATIONS.

PLEASE FOLLOW THE RULES AND PARAMETERS IN THIS GUIDE TO DESIGN AND COMMISSION.

NEOWAY WILL NOT TAKE ANY RESPONSIBILITY OF BODILY HURT OR ASSET LOSS CAUSED BY

IMPROPER OPERATIONS.

THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE DUE TO

PRODUCT VERSION UPDATE OR OTHER REASONS.

EVERY EFFORT HAS BEEN MADE IN PREPARATION OF THIS DOCUMENT TO ENSURE ACCURACY

OF THE CONTENTS, BUT ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS

DOCUMENT DO NOT CONSTITUTE A WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.

Neoway provides customers complete technical support. If you have any question, please contact your

account manager or email to the following email addresses:

[email protected]

Website: http://www.neoway.com

N75 EVK User Guide

Table of Tables

Contents

1 Overview....................................................................................................1

2 About N75 EVB..........................................................................................2

3 Connection and Power ..............................................................................4

3.1 Micro_USB Cable......................................................................................................................... 4

3.2 Power Supply ............................................................................................................................... 4

3.2.1 5V/3A Adapter...................................................................................................................... 4

3.2.2 M5X0-PWR Board............................................................................................................... 5

4 Commissioning ..........................................................................................7

4.1 Through Serial Port ...................................................................................................................... 7

4.2 Through USB Port........................................................................................................................ 8

N75 EVK User Guide

About This Document

iii

About This Document

Scope

This document is applicable to the N75 series.

Audience

This document is intended for system engineers (SEs), development engineers, and test engineers.

Change History

Issue

Date

Change

Changed By

1.0

2019-10

Initial draft

Bale Chang

Conventions

Symbol

Indication

This warning symbol means danger. You are in a situation that could cause fatal

device damage or even bodily damage.

This means the reader be careful. In this situation, you might perform an action

that could result in module or product damages.

Means note or tips for readers to use the module

Related Documents

Neoway_N75_Datasheet

Neoway_N75_Product_Specifications

N75 EVK User Guide

About This Document

Neoway_N75_HW_User_Guide

Neoway_N75_AT_Command_Mannual

N75 EVK User Guide

About This Document

1 Overview

N75 EVB is designed to commission and test the N75 module. It provides one power interface, two

UART interfaces, one USB interface, one SIM card interface, antenna interfaces, and one PWRKEY

button. Developers can connect it to a power supply and a computer through the USB cable or serial-

to-USB cable to commission the functions of the module.

N75 EVK provides the following items:

⚫N75 EVB (including N75 module)

⚫M5X0-PWR power cable

⚫Micro-USB cable

⚫Others (power adapter, jumper caps, LTE antenna)

N75 EVK User Guide

About This Document

2 About N75 EVB

This chapter describes the hardware layout of the N75 EVB.

Figure 2-1 Top view of N75 EVB

In Figure 2-1, each interface and keys of N75 is marked in red rectangles. Read this user guide carefully

before using N75 EVB. If necessary, please refer to the schematic diagram and PCB file of the board.

Table 2-1 lists each interface or button and their functions.

N75 EVK User Guide

About This Document

Table 2-1 Interfaces and button of N75 EVB

No.

Interface/Button

Description

N75

4G module

PWRKEY button

After supplying power to the module, hold this button for more

than 1 second to start the module

USB_BOOT button

Force the module to enter download mode

RESET_N button

Hold this button for more than 1 second to reset the module

High-level start pin

To start the module by a high level

USB port

To download firmware or send AT command

SIM connector

Micro-SIM card

5V DC power port

Main power supply, ranging from 3.6V to 4.5V

Power control switch

To control the power supply

3.8V LDO regulator

Level shift

3.3V LDO regulator

Level shift

Indicators

Power, ring, network

UART2

Used to commission the module

CANNOT be used to supply power

UART3

Not supported

Antenna interfaces

Diversity antenna connector, GPS antenna connector, 2G/3G/4G

antenna connector

N75 EVK User Guide

About This Document

3 Connection and Power

3.1 Micro_USB Cable

A micro-USB cable is used to connect N75 to a computer for USB or UART communication. The USB

interface of N75 EVB is used for communication only. It cannot be used to supply power for the EVB.

Use a power adapter for power supply.

Figure 3-1 USB cable

3.2 Power Supply

N75 EVB supports different types of power supply:

⚫Adapter, 5V@3A

⚫M5X0-PWR board, 3.9V through UART1

3.2.1 5V/3A Adapter

Figure 3-1 shows the recommended power adapter for N75 EVB.

N75 EVK User Guide

About This Document

Figure 3-2 Power adapter

3.2.2 M5X0-PWR Board

M5X0-PWR board is developed on PL2303 chipset by Neoway and used to convert USB to UART. You

can also choose another USB-to UART cable/board based on FT2232, CP210X, and other chipsets.

M5X0-PWR is connected to the N75 EVB through 4-pin cables, which have been soldered to the power

board in a sequence of red, black, yellow, and green at one end and should be inserted into the plug

of the EVB at the other end. Among the 4-pin cables:

⚫Green

Module TXD, outputs 3.3 V CMOS level

⚫Yellow

Module RXD, inputs maximum 3.3 V CMOS level

⚫Black

Ground

⚫Red

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