Neoway N77 Bedienungsanleitung
EVK User Guide
Issue 1.0 Date 2021-01-23
N77 EVK User Guide
Copyright
Copyright © Neoway Technology Co., Ltd.
ii
Copyright © Neoway Technology Co., Ltd 2021. All rights reserved.
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 guide for users to use N77.
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:
Website: http://www.neoway.com
N77 EVK User Guide
Table of Tables
Copyright © Neoway Technology Co., Ltd.
iii
Contents
1 Overview....................................................................................................6
2 EVB Functions...........................................................................................7
3 EVB Interfaces and Buttons ......................................................................9
3.1 Power Supply Interface................................................................................................................ 9
3.2 Communication Interfaces ........................................................................................................... 9
3.3 Antenna Interfaces ..................................................................................................................... 10
3.4 SIM Card Interfaces ....................................................................................................................11
3.5 Buttons ....................................................................................................................................... 12
3.6 Pin Headers................................................................................................................................ 12
4 Starting the Module .................................................................................14
5 Commissioning the Module .....................................................................17
5.1 Through USB-to-Serial Interface................................................................................................ 17
5.2 Through USB Interface .............................................................................................................. 18
N77 EVK User Guide
About This Document
Copyright © Neoway Technology Co., Ltd.
iv
About This Document
Scope
This document is applicable to the N77 series.
Audience
This document is intended for system engineers (SEs), development engineers, and test engineers.
Change History
Issue
Date
Change
Changed By
1.0
2020-11
Initial draft
Wu Xinxing
Conventions
Symbol
Indication
This warning symbol means danger. You are in a situation that could cause fatal
device damage or even bodily damage.
Means 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
N77 EVK User Guide
About This Document
Copyright © Neoway Technology Co., Ltd.
v
Related Documents
Neoway_N77-CA_Datasheet
Neoway_N77-CA_Product_Specifications
Neoway_N77-CA_AT_Commands_Mannual
Neoway_N77-CA_EVK_User_Guide
N77 EVK User Guide
Chapter 1 Overview
Copyright © Neoway Technology Co., Ltd.
6
1 Overview
N77 EVB is designed to commission the N77 module. It provides the power supply interface, USB-to-
Serial interface, USB interface, SIM card interface, antenna interface, startup (PWRKEY_N) button,
download (USB_BOOT) button, and other peripheral interfaces. You can connect it to a power supply
and a computer to commission the module.
N77 EVK provides the following accessories.
⚫N77 EVB (excluding the N77 module)
⚫N77 module
⚫Others (antenna or other accessories)
N77 EVK User Guide
Chapter 2 EVB Functions
Copyright © Neoway Technology Co., Ltd.
7
2 EVB Functions
Figure 2-1 N77 EVB
N77 EVK User Guide
Chapter 2 EVB Functions
Copyright © Neoway Technology Co., Ltd.
8
N77 EVB function description
No.
Function
Description
1
N77 module
Supports LTE-FDD, LTE-TDD, WCDMA, and GSM
communications.
2
Power supply interface
Power supply voltage for the module is 5V.
Note that the output current of the module should be at
least 3.0 A.
3
Power switch
Used to control the power supply for the EVB.
4
SIM1 card slot
5
SIM2 card slot
6
USB interface
Used to transmit AT commands and download firmware.
7
USB-to-UART2 interface
Used for AT transmission.
8
USB-to-UART1 interface
Used to capture log messages from the module.
9
MAIN_ANT
Main antenna interface of the module.
The operating frequency bands the antenna supports
should cover the bands that N77 supports.
10
DIV_ANT
Diversity antenna interface of the module.
The operating frequency bands the antenna supports
should cover the bands that N77 supports.
11
RESET button
Used to start the module.
12
PWRKEY_N button
Used to start the module.
13
USB_BOOT button
Used to download firmware
14
SLEEP pin header
Used to enable the module to enter sleep mode.
15
UART2 flow control pin header
Reserved
16
PWRKEY_P pin header
Used to start the module.
17
ADC1 pin header
Reserved
N77 EVK User Guide
Chapter 3 EVB Interfaces and Buttons
Copyright © Neoway Technology Co., Ltd.
9
3 EVB Interfaces and Buttons
N77 EVB can only be powered by the external power supply. It uses the Micro-USB cable to perform
data communications. The following provides the power supply methods and communication methods
of the EVB.
3.1 Power Supply Interface
The N77 EVB can be supplied power in two methods:
⚫Connect the power supply interface to an external power source through a 5V power supply
adapter.
⚫Connect the solder pads to a 5V regulated power source through wires.
Note that the output current of the module should be at least 3.0 A.
Figure 3-1 Power Supply Interface
The power source supplies voltage to the module directly through solder pads. Use a black alligator clip to clamp
the GND solder pad and a red alligator clip to clamp the DC 5V solder pad as shown in the figure above.
Do NOT connect the pads reversely. Otherwise, the module will be burned and cannot be repaired.
3.2 Communication Interfaces
All communication interfaces of N77 EVB use the Micro-USB cable to transmit AT commands.
N77 EVK User Guide
Chapter 3 EVB Interfaces and Buttons
Copyright © Neoway Technology Co., Ltd.
10
Figure 3-2 Micro-USB cable
Communication methods of N77 EVB
⚫Connect the USB interface to your computer; it is used for firmware download and AT
communications.
⚫Connect the USB-to-UART2 interface to your computer; it is used for only AT communications.
⚫Connect the USB-to-UART1 interface to your computer; it is used to capture log messages from
the module.
Figure 3-3 N77 USB interfaces
3.3 Antenna Interfaces
N77 EVB provides a main antenna interface (right) and a diversity antenna interface (left).
Note that the operating frequency bands the antenna supports should cover the bands that N77
supports.
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