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N21 EVK

User Guide

Issue 2.0

Date 2019-03-05

Neoway Product Document

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Summary of Contents for N21 EVK

Page 1: ...N21 EVK User Guide Issue 2 0 Date 2019 03 05 Neoway Product Document ...

Page 2: ...TRUCTIONS 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 DOCU...

Page 3: ...N21 EVK User Guide Copyright Neoway Technology Co Ltd ii Contents 1 Overview 1 1 1 EVB Functions 2 1 2 Power Supply 3 1 3 M5X0 PWR Board 3 2 Commissioning 5 2 1 UART Commissioning 5 2 2 PSM Test 7 ...

Page 4: ...e History Issue Date Change Changed By 1 0 2018 06 Initial draft Cenny Xiao 2 0 2019 01 Updated N21 EVB to V1 1 Cenny Xiao 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 t...

Page 5: ...N21 EVK User Guide Copyright Neoway Technology Co Ltd iv Related Documents Neoway_N21_Datasheet Neoway_N21_Product_Specifications Neoway_N21_AT_Command_Mannual Neoway_N21_Hardware_User_Guide ...

Page 6: ... connector antenna interface PWRKEY button RESET_N button PSM_WAKE UP button antenna interface and HOST DEBUG interfaces It helps customers to learn the functions of N21 and develop hardware and software based on N21 N21 EVK contains the following components N21 EVB including module 5V adapter M5X0 PWR cable Others 5V 2A adapter antenna etc Others antenna ...

Page 7: ...V to supply power for the module 2 N21 module 3 UART interface Interface for N21 to communicate with a computer or peripherals to commission AT commands N21 EVB already embeds a level shifter for UART 4 5 SIM Card connector Two SIM card holders Choose one based on the SIM card type 6 PWRKEY button After supplying power to the module hold this button for more than 1 2 second to start the module Hol...

Page 8: ...ace Used for firmware upgrade and log capturing 1 2 Power Supply The EVB uses 5 V power supply Plug the output end of the adapter to the DC5V connector on the EVB Pull the power supply switch to the ON side The following figure shows a 5V 2A adapter It is recommended to select a 5V adapter that can output 1A and larger current 1 3 M5X0 PWR Board M5X0 PWR board is developed on PL2303 chipset by Neo...

Page 9: ... 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 3 8 V power supply It is not applicable to N21 EVB ...

Page 10: ...w the steps below Step 1 Connect the EVB properly Insert the 5V 2A adapter and the M5X0 PWR cable into interfaces of the board Install the antenna and SIM card Step 2 Insert the M5X0 PWR cable into the USB port of the computer switch on the power supply of the board and hold the PWRKEY button for 1 2 second to start the module Step 3 Install USB to Serial port driver pl2303 win7x64 rar and ensure ...

Page 11: ...e lower Input any AT command and the UART outputs PBREADY indicating that the module automatically detects a baud rate STATUS and NET indicators are switched off by default after N21 is started successfully You can input AT LEDMODE 1 to enable indicators If STATUS indicator is green ON the module is running If NET indicator is green on the module registers with a network successfully If NET indica...

Page 12: ...EVB 1 Remove 0Ω resistors at and 2 Connect a current meter to VBAT in series 3 Solder a 2 pin connector at Step 2 Start the module and ComTool Step 3 Input AT commands to query registration status and enable PSM mode Test the current in PSM mode 1 Input AT CEREG If the module returns CEREG 0 1 or CEREG 0 5 it registers with a network successfully ...

Page 13: ...atically enters PSM mode after RRC link is released and T3324 times out After the module enters PSM mode the ComTool displays PSMEVENT ENTER PSM and the STATUS and NET indicators turns off on the EVB You can send AT RRCRLSREQ to release RRC link fast 4 Observe the current in PSM mode displayed on the current meter Step 4 Put a jumper cap to the pin connector and hold the PSM_WAKE UP button for one...

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