Telit Wireless Solutions GS2101M Series Reference guide

GS2200M

IP2WiFi Adapter Command

Reference Guide

1VV0301501 Rev. 1.0 – 2018-03-12

SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE

NOTICE

While reasonable efforts have been made to assure the accuracy of this document, Telit

assumes no liability resulting from any inaccuracies or omissions in this document, or from

use of the information obtained herein. The information in this document has been carefully

checked and is believed to be reliable. However, no responsibility is assumed for

inaccuracies or omissions. Telit reserves the right to make changes to any products described

herein and reserves the right to revise this document and to make changes from time to time

in content hereof with no obligation to notify any person of revisions or changes. Telit does not

assume any liability arising out of the application or use of any product, software, or circuit

described herein; neither does it convey license under its patent rights or the rights of others.

It is possible that this publication may contain references to, or information about Telit

products (machines and programs), programming, or services that are not announced in your

country. Such references or information must not be construed to mean that Telit intends to

announce such Telit products, programming, or services in your country.

COPYRIGHTS

This instruction manual and the Telit products described in this instruction manual may be,

include or describe copyrighted Telit material, such as computer programs stored in

semiconductor memories or other media. Laws in the Italy and other countries preserve for

Telit and its licensors certain exclusive rights for copyrighted material, including the exclusive

right to copy, reproduce in any form, distribute and make derivative works of the copyrighted

material. Accordingly, any copyrighted material of Telit and its licensor contained herein or in

the Telit products described in this instruction manual may not be copied, reproduced,

distributed, merged or modified in any manner without the express written permission of Telit.

Furthermore, the purchase of Telit products shall not be deemed to grant either directly or by

implication, estoppel, or otherwise, any license under the copyrights, patents or patent

applications of Telit, as arises by operation of law in the sale of a product.

COMPUTER SOFTWARE COPYRIGHTS

The Telit and 3rd Party supplied Software (SW) products described in this instruction manual

may include copyrighted Telit and other 3rd Party supplied computer programs stored in

semiconductor memories or other media. Laws in the Italy and other countries preserve for

Telit and other 3rd Party supplied SW certain exclusive rights for copyrighted computer pro-

grams, including the exclusive right to copy or reproduce in any form the copyrighted com-

puter program. Accordingly, any copyrighted Telit or other 3rd Party supplied SW computer

programs contained in the Telit products described in this instruction manual may not be cop-

ied (reverse engineered) or reproduced in any manner without the express written permission

of Telit or the 3rd Party SW supplier. Furthermore, the purchase of Telit products shall not be

deemed to grant either directly or by implication, estoppel, or otherwise, any license under the

copyrights, patents or patent applications of Telit or other 3rd Party supplied SW, except for

the normal non-exclusive, royalty free license to use that arises by operation of law in the sale

of a product.

USAGE AND DISCLOSURE RESTRICTIONS

I. License Agreements

The software described in this document is the property of Telit and its licensors. It is

furnished by express license agreement only and may be used only in accordance with the

terms of such an agreement.

II. Copyrighted Materials

Software and documentation are copyrighted materials. Making unauthorized copies is

prohibited by law. No part of the software or documentation may be reproduced, transmitted,

transcribed, stored in a retrieval system, or translated into any language or computer

language, in any form or by any means, without prior written permission of Telit

III. High Risk Materials

Components, units, or third-party products used in the product described herein are NOT

fault-tolerant and are NOT designed, manufactured, or intended for use as on-line control

equipment in the following hazardous environments requiring fail-safe controls: the operation

of Nuclear Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic

Control, Life Support, or Weapons Systems (High Risk Activities”). Telit and its supplier(s)

specifically disclaim any expressed or implied warranty of fitness for such High Risk Activities.

IV. Trademarks

TELIT and the Stylized T Logo are registered in Trademark Office. All other product or service

names are the property of their respective owners.

V. Third Party Rights

The software may include Third Party Right software. In this case you agree to comply with all

terms and conditions imposed on you in respect of such separate software. In addition to

Third Party Terms, the disclaimer of warranty and limitation of liability provisions in this

License shall apply to the Third Party Right software.

TELIT HEREBY DISCLAIMS ANY AND ALL WARRANTIES EXPRESS OR IMPLIED FROM

ANY THIRD PARTIES REGARDING ANY SEPARATE FILES, ANY THIRD PARTY

MATERIALS INCLUDED IN THE SOFTWARE, ANY THIRD PARTY MATERIALS FROM

WHICH THE SOFTWARE IS DERIVED (COLLECTIVELY “OTHER CODE”), AND THE USE

OF ANY OR ALL THE OTHER CODE IN CONNECTION WITH THE SOFTWARE,

INCLUDING (WITHOUT LIMITATION) ANY WARRANTIES OF SATISFACTORY QUALITY

OR FITNESS FOR A PARTICULAR PURPOSE.

NO THIRD PARTY LICENSORS OF OTHER CODE SHALL HAVE ANY LIABILITY FOR ANY

DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED

AND WHETHER MADE UNDER CONTRACT, TORT OR OTHER LEGAL THEORY,

ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE OTHER CODE OR

THE EXERCISE OF ANY RIGHTS GRANTED UNDER EITHER OR BOTH THIS LICENSE

AND THE LEGAL TERMS APPLICABLE TO ANY SEPARATE FILES, EVEN IF ADVISED

OF THE POSSIBILITY OF SUCH DAMAGES.

PRODUCT

GS2200M

Software Release

5.5.2

APPLICABILITY TABLE

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Table of Contents

Chapter 1 Getting Started ................................................................................................................ 19

1.1 Overview ................................................................................................................................19

1.2 Using SDK Builder .................................................................................................................21

1.2.1 IP-to-WiFi Module Information .....................................................................................21

Chapter 2 Architecture ..................................................................................................................... 23

2.1 Overview ................................................................................................................................23

2.2 Serial Interface ......................................................................................................................24

2.3 System Initialization ...............................................................................................................24

2.3.1 Profile Definition ...........................................................................................................25

2.4 Command Processing Mode .................................................................................................26

2.5 Data Handling ........................................................................................................................27

2.5.1 Unsolicited/Unassociated/Beacon Mode Data Handling ..............................................28

2.5.2 Software Flow Control ..................................................................................................28

2.5.3 Hardware Flow Control ................................................................................................28

2.6 Serial Data Handling ..............................................................................................................29

2.7 Wireless Network Management .............................................................................................30

2.7.1 Scanning ......................................................................................................................30

2.7.2 Association ...................................................................................................................30

2.7.3 SSID and Passphrase ..................................................................................................30

Chapter 3 Host Interaction ............................................................................................................... 33

3.1 Startup Handling ....................................................................................................................34

3.1.1 Single Interface Startup Handling ................................................................................34

3.1.2 Dual Interface Startup Handling ...................................................................................35

3.2 Interface .................................................................................................................................35

3.2.1 UART ...........................................................................................................................35

3.2.1.1 UART Parameters ...............................................................................................35

3.2.1.2 Software Flow Control .........................................................................................37

3.2.1.3 Hardware Flow Control ........................................................................................38

3.2.2 SPI Interface and Configuration ...................................................................................39

3.2.2.1 SPI Byte Stuffing (Legacy SPI, SPI-NO-DMA) ....................................................40

3.2.2.2 SPI Command Response (SPI-DMA) ..................................................................41

3.2.2.3 Annexure - HI Frame Format (From Host) ...........................................................52

3.2.2.4 Annexure - HI Frame Response (From GS Node) ..............................................53

3.2.2.5 Pin Connection for SPI Interface .........................................................................54

3.2.3 SDIO Interface .............................................................................................................55

3.2.3.1 Capabilities ..........................................................................................................55

3.2.3.2 SDIO Host Slave Initialization and Communication .............................................56

3.2.3.3 SDIO Host Recommendations .............................................................................59

3.2.3.4 Pin Description .....................................................................................................61

3.2.4 Interface Verification ....................................................................................................61

Chapter 4 General Operations ......................................................................................................... 63

4.1 Version ..................................................................................................................................63

4.2 Time Setting ..........................................................................................................................65

4.2.1 Set System Time ..........................................................................................................65

4.2.1.1 Manual Setting .....................................................................................................65

4.2.2 Get System Time .........................................................................................................66

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4.3 Profile Setting ........................................................................................................................67

4.3.1 Get Profile ....................................................................................................................67

4.3.2 Save Profile ..................................................................................................................68

4.3.3 Load Profile ..................................................................................................................69

4.3.4 Select Default Profile ....................................................................................................70

4.3.5 Restore Profile .............................................................................................................71

4.3.6 Define Profile ................................................................................................................71

4.3.7 Identification Information ..............................................................................................73

4.3.8 Enhanced Asynchronous Notification ..........................................................................74

4.4 Reset .....................................................................................................................................75

4.5 MAC .......................................................................................................................................76

4.5.1 Set MAC Address .........................................................................................................76

4.5.2 Get MAC Address ........................................................................................................78

Chapter 5 Wireless ......................................................................................................................... 81

5.1 Wireless Generic ...................................................................................................................81

5.1.1 Regulatory Domain ......................................................................................................81

5.1.1.1 Set Regulatory Domain ........................................................................................81

5.1.1.2 Get Regulatory Domain .......................................................................................82

5.1.2 Operation Mode ...........................................................................................................83

5.1.3 MAC Retry ...................................................................................................................86

5.1.4 Sync Loss Interval ........................................................................................................87

5.1.5 Set RTS Threshold .......................................................................................................88

5.1.6 Transmit Data Rate ......................................................................................................89

5.1.6.1 Set Transmit Rate ................................................................................................89

5.1.6.2 Get Transmit Rate ...............................................................................................91

5.1.7 Graceful Shutdown of WLAN .......................................................................................92

5.2 Beacon Mode (Unassociated Mode) .....................................................................................93

5.2.1 Unassociated/Unsolicited Tx ........................................................................................93

5.2.2 Unassociated/Unsolicited Rx .......................................................................................98

5.2.2.1 Examples for Unassociated/Unsolicited Tx and Rx Commands ........................101

5.2.3 Unassociated/Unsolicited Rx Stop .............................................................................102

5.2.4 Unassociated/Unsolicited Data Encryption ................................................................103

5.3 Station/AP Mode ..................................................................................................................104

5.3.1 Scan Time Settings ....................................................................................................104

5.3.1.1 Set Scan Time ...................................................................................................104

5.3.1.2 Get Scan Time ...................................................................................................105

5.3.2 Authentication Mode ..................................................................................................106

5.3.3 Security Configuration ................................................................................................107

5.3.3.1 Security Setting ..................................................................................................107

5.3.3.2 WEP Keys ..........................................................................................................108

5.3.3.3 WEP Key Type Configuration ............................................................................109

5.3.3.4 WPA-PSK and WPA2-PSK Passphrase ............................................................111

5.3.3.5 WPA-PSK and WPA2-PSK Key Calculation ......................................................112

5.3.3.6 WPA-PSK and WPA2-PSK Key ........................................................................113

5.3.4 Scanning ....................................................................................................................115

5.3.5 Association .................................................................................................................117

5.3.6 Disassociation ............................................................................................................120

5.3.7 Connection Maintenance ...........................................................................................120

5.3.7.1 Keep Alive Timer ...............................................................................................120

5.3.7.2 WLAN Keep Alive Interval .................................................................................121

5.3.8 Advanced Commands ................................................................................................122

5.3.8.1 Get Client Information ........................................................................................122

5.4 WiFi Direct Mode .................................................................................................................123

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5.4.1 Set Device ..................................................................................................................123

5.4.2 Set WPS .....................................................................................................................125

5.4.3 Start Find ....................................................................................................................126

5.4.4 Stop Find ....................................................................................................................129

5.4.5 Provoke ......................................................................................................................130

5.4.6 Provision Discovery ....................................................................................................131

5.4.7 Group Form (Group Owner Negotiation) ....................................................................132

5.4.7.1 Provision Discovery Request Handling ..............................................................136

5.4.8 Client Join ..................................................................................................................138

5.4.9 Invitation Procedures .................................................................................................140

5.4.10 Disconnect ...............................................................................................................141

Chapter 6 Power Management - Radio and System ..................................................................... 143

6.1 Radio Receiver Setting ........................................................................................................143

6.1.1 Active Radio Receive .................................................................................................143

6.1.2 Standard Power Save Radio Receive based on DTIM/Listen Interval .......................145

6.1.2.1 IEEE PS Poll Listen Interval ..............................................................................145

6.1.3 Custom Power Save Radio Receive ..........................................................................148

6.2 Battery Measurement ..........................................................................................................149

6.2.1 Battery Check Start ....................................................................................................149

6.2.2 Battery Warning/Standby Level Set ...........................................................................150

6.2.3 Battery Check Set ......................................................................................................151

6.2.4 Battery Check Stop ....................................................................................................152

6.2.5 Battery Value Get .......................................................................................................152

6.3 System Power Save ............................................................................................................153

6.3.1 Hibernate ....................................................................................................................153

6.3.2 Standby ......................................................................................................................154

6.3.2.1 Putting the System in Standby ...........................................................................154

6.3.2.2 Enabling Standby Mode Between Beacons .......................................................156

6.3.2.3 Configuring Standby Between Beacons ............................................................157

6.3.3 Deep Sleep ................................................................................................................160

6.3.4 Power Save in Limited AP ..........................................................................................162

6.3.5 Hardware Cryptography .............................................................................................163

Chapter 7 Peripherals .................................................................................................................... 165

7.1 GPIO Commands ................................................................................................................165

7.1.1 GPIO Out HIGH/LOW ................................................................................................165

Chapter 8 Production and Debug .................................................................................................. 167

8.1 RF Test ................................................................................................................................167

8.1.1 Regulatory and Transmit Tests using RF Test Commands .......................................167

8.1.1.1 Regulatory Testing .............................................................................................167

8.1.1.2 Transmit Testing ................................................................................................167

8.1.1.3 Gain Control Table .............................................................................................168

8.1.1.4 Start RF Test .....................................................................................................168

8.1.1.5 Stop RF Test ......................................................................................................168

8.1.1.6 Asynchronous Frame Transmission ..................................................................168

8.1.1.7 Start Asynchronous Frame Reception ...............................................................170

8.1.1.8 Stop Asynchronous Frame Reception ...............................................................173

8.1.1.9 Asynchronous Frame Transmission (TX99 mode) ............................................174

8.1.1.10 Asynchronous Frame Transmission (TX100 mode) ........................................179

8.1.1.11 Carrier Wave Transmission .............................................................................181

8.2 Live Calibration ....................................................................................................................182

8.2.1 Enable Live Calibration ..............................................................................................182

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8.2.2 Erase Live Calibration ................................................................................................184

8.2.3 Start Live Calibration ..................................................................................................185

8.2.4 For Complete Sequence of Live Calibration ..............................................................187

8.3 Debug ..................................................................................................................................187

8.3.1 Log Level ....................................................................................................................187

8.3.2 Echo ...........................................................................................................................188

8.3.3 Verbose ......................................................................................................................189

8.3.4 RSSI ...........................................................................................................................190

8.3.5 WLAN Status ..............................................................................................................190

8.3.6 WLAN Statistics .........................................................................................................191

Appendix A Response Codes ........................................................................................................ 195

A.1 Synchronous Messages ......................................................................................................195

A.2 Asynchronous & Enhanced Asynchronous Messages ........................................................195

A.3.1 Exception Messages ..................................................................................................199

A.3.2 Boot Messages ..........................................................................................................200

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About This Manual

This manual provides guidelines for using the GainSpan

®

AT command-line interface to

design, configure, and provision the GS2200M series module to enable IP-to-WiFi

embedded devices with a UART/SPI interface to access an 802.11-compliant WiFi wireless

network connection using only serial commands.

Refer to the following sections:

• Revision History, page 9

• Audience, page 9

• Standards, page 10

• Documentation Conventions, page 10

• Documentation, page 13

• References, page 13

• Contact Information, Support, page 15

• Returning Products to GainSpan, page 16

• Accessing the GainSpan Portal, page 16

Revision History

This revision history of the GainSpan IP-to-WiFi Adapter Application Programmer

Reference Guide is maintained in the following table:

Audience

This manual is designed for software engineers who want to evaluate, design, and

implement GainSpan Ultra Low Power 802.11 WiFi Modules within their environment. To

use this manual you will need a basic understanding of WiFi networks, network principles,

and network protocols.

Table 1 Revision History

Version Date Remarks

1.0 March2018 Initial Release

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Standards

The standards that are supported by the GainSpan GS module series are:

– IEEE 802.11 b/g/n

Documentation Conventions

This manual uses the following text and syntax conventions:

– Special text fonts represent particular commands, keywords, variables, or window

sessions

– Color text indicates cross-reference hyper links to supplemental information

– Command notation indicates commands, subcommands, or command elements

Table 2, page 10, describes the text conventions used in this manual for software

procedures that are explained using the AT command line interface.

Table 2 Document Text Conventions

Convention Type Description

command syntax

monospaced font

This monospaced font represents command strings entered on a

command line and sample source code.

AT XXXX

Proportional font

description

Gives specific details about a parameter.

<Data> DATA

UPPERCASE

Variable parameter

Indicates user input. Enter a value according to the descriptions that

follow. Each uppercased token expands into one or more other token.

lowercase

Keyword parameter

Indicates keywords. Enter values exactly as shown in the command

description.

[ ]

Square brackets

Enclose optional parameters. Choose none; or select one or more an

unlimited number of times each. Do not enter brackets as part of any

command.

[parm1|parm2|parm3]

?

Question mark

Used with the square brackets to limit the immediately following token

to one occurrence.

<ESC>

Escape sequence

Each escape sequence <ESC> starts with the ASCII character 27 (0x1B).

This is equivalent to the Escape key.

<ESC>C

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<CR>

Carriage return

Each command is terminated by a carriage return.

<LF>

Line feed

Each command is terminated by a line feed.

Carriage return

Line feed

Each response is started with a carriage return and line feed with some

exceptions.

< >

Angle brackets

Enclose a numeric range, endpoints inclusive. Do not enter angle

brackets as part of any command.

<SSID>

=

Equal sign

Separates the variable from explanatory text. Is entered as part of the

command.

PROCESSID = <CID>

.

dot (period)

Allows the repetition of the element that immediately follows it multiple

times. Do not enter as part of the command.

.AA:NN can be expanded to 1:01 1:02 1:03.

A.B.C.D

IP address

IPv4-style address.

10.0.11.123

LINE

End-to-line input token

Indicates user input of any string, including spaces. No other parameters

may be entered after input for this token.

string of words

WORD

Single token

Indicates user input of any contiguous string (excluding spaces).

singlewordnospaces

Table 2 Document Text Conventions (Continued)

Convention Type Description

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Table 3, page 12, describes the symbol conventions used in this manual for notification and

important instructions.

Table 3 Symbol Conventions

Icon Type Description

Note

Provides helpful suggestions needed in understanding

a feature or references to material not available in the

manual.

Alert

Alerts you of potential damage to a program, device,

or system or the loss of data or service.

Caution

Cautions you about a situation that could result in

minor or moderate bodily injury if not avoided.

Warning

Warns you of a potential situation that could result in

death or serious bodily injury if not avoided.

Electro-Static Discharge

(ESD)

Notifies you to take proper grounding precautions

before handling a product.

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Documentation

The GainSpan documentation suite listed in Table 4, page 13 includes the part number,

documentation name, and a description of the document. The documents are available from

the GainSpan Portal. Refer to Accessing the GainSpan Portal, page 16 for details.

Documentation Feedback

We encourage you to provide feedback, comments, and suggestions so that we can improve

the documentation. You can send your comments by logging into Telit Support Portal. If

you are using e-mail, be sure to include the following information with your comments:

– Document name

– URL or page number

– Hardware release version (if applicable)

– Software release version (if applicable)

References

The GainSpan references listed in Table 5, page 14 are available on the GainSpan Portal.

Refer to Accessing the GainSpan Portal, page 16 for details.

Table 4 Documentation List

Part Number Document Title Description

1VV0301396

GS2200M Low Power WiFi Mini-Module Hardware User

Guide

Provides information to help WiFi

system designers to build systems using

GainSpan GS2200M module and

develop wireless applications.

1VV0301444

GS2K S2W Use Case Reference Guide

Provides references for using GainSpan

AT commands and its usage in different

scenarios using different features and

protocols.

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Table 5 Other Documents and References

Title Description

Schematics

GS Based Module Evaluation Board schematics

supporting:

GS2200M

Module Firmware and

Programming Utilities

• IP-to-WiFi (IP2WiFi) based firmware

• Firmware Release Notes

• GSFlashprogram utility for programming the

modules

Software Utilities

Serial terminal program to evaluate and demonstrate

IP-to-WiFi (IP2WiFi) applications such as

– gs2k_flashprogram.exe

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Contact Information, Support

For general contact, technical support services, technical questions and to report

documentation errors contact Telit Technical Support at:

[email protected]

We recommend adding “Wi-Fi” in subject of the email. For example, the subject of email

can be “Wi-Fi: Your actual issue or question in brief” like “Wi-Fi: SPI Driver Issue”.

Also, in description of your email, please provide details about the issue, product and

module including software firmware version, module version and type, application being

used, customizations done to application, use case, issue frequency, and ability to recreate

it among other things wherever applicable.

Alternatively, for more Technical Support information or assistance, perform the following

steps:

1. Visit http://www.telit.com, go to Products> Wi-Fi and Blue-tooth, then scroll down to

the Telit Wi- Fi Portal.

2. Click Access the Portal Here icon which will direct you to the GainSpan portal

http://www.gainspan/secure/login.com

1. Log in with your customer Email and Password.

2. Select the Location.

3. Select Q&A tab.

4. Select Ask a New Question.

5. Enter your technical support question, product information, and a brief description.

For detailed information about where you can buy the Telit modules or for

recommendations on accessories and components visit:

http://www.telit.com

Our aim is to make this guide as helpful as possible. Keep us informed of your comments

and suggestions for improvements. Telit appreciates feedback from the users of our

information.

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Returning Products to GainSpan

If a problem cannot be resolved by GainSpan technical support, a Return Material

Authorization (RMA) is issued. This number is used to track the returned material at the

factory and to return repaired or new components to the customer as needed.

To return a hardware component:

1. Determine the part number and serial number of the component.

2. Obtain an RMA number from Sales/Distributor Representative.

3. Provide the following information in an e-mail or during the telephone call:

– Part number and serial number of component

– Your name, organization name, telephone number, and fax number

– Description of the failure

4. The support representative validates your request and issues an RMA number for

return of the components.

5. Pack the component for shipment.

Guidelines for Packing Components for Shipment

To pack and ship individual components:

– When you return components, make sure they are adequately protected with

packing materials and packed so that the pieces are prevented from moving

around inside the carton.

– Use the original shipping materials if they are available.

– Place individual components in electrostatic bags.

– Write the RMA number on the exterior of the box to ensure proper tracking.

Accessing the GainSpan Portal

To find the latest version of GainSpan documentation supporting the GainSpan product

release you are interested in, you can search the GainSpan Portal website by performing the

following steps:

NOTE: Do not return any components to GainSpan Corporation unless you have

first obtained an RMA number. GainSpan reserves the right to refuse shipments

that do not have an RMA. Refused shipments will be returned to the customer by

collect freight.

CAUTION! Do not stack any of the components.

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1. Visit http://www.telit.com, go to Products> Wi-Fi and Blue-tooth, then scroll down

the Telit Wi- Fi Portal.

2. Click Access the Portal Here icon which will direct you to the GainSpan portal

http://www.gainspan/secure/login.com

3. Log in using your customer Email and Password.

4. Click the Getting Started tab to view a Quick Start tutorial on how to use various

features within the GainSpan Portal.

5. Click the Agreements tab to download and upload the SLA for ADK and SDK

respectively.

6. Click on the Documents tab to search, download, and print GainSpan product

documentation.

7. Click the Software tab to search and download the latest software versions.

8. Click the Kits Purchased tab to view customer account history.

9. Click the Legal Documents tab to view GainSpan Non-Disclosure Agreement

(NDA).

10. Click the Certifications tab to view GainSpan certifications.

NOTE: You must first contact GainSpan to set up an account, and obtain a

customer user name and password before you can access the GainSpan Portal.

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Chapter 1 Getting Started

This chapter describes how to get started.

• Overview, page 19

• Using SDK Builder, page 21

1.1 Overview

The IP-to-WiFi stack is used to provide WiFi capability to any device having a serial

interface. This approach offloads WLAN, TCP/IP stack and network management

overhead to the WiFi chip, allowing a small embedded host (for example an MCU) to

communicate with other hosts on the network using a WiFi wireless link. The host

processor can use serial commands to configure the IP-to-WiFi Application and to create

wireless and network connections.

OTP stands for One Time Programmable Memory. It is divided into two parts, one for

Application firmware and another for WLAN firmware. It contains important system

related information for Application and WLAN firmware. For Application firmware, it

contains information about MAC address, regularity information, module related

information, and so on. For WLAN firmware, it contains information about calibration

data.

The user will have to register on GainSpan website, sign the NDA and check with the local

sales team for any queries during this procedure. This gives access to all the respective

documentation according to the product purchased.

The following is the basic application development sequence for a IP-to-WiFi user.

1. Evaluate GainSpan hardware and firmware

– Download the software, program, and execute.

– To download the software, go to SDK builder (www.gainspan.com/secure/login),

and download all the latest packages including the binary (Refer GS2K SDK

Builder User Guide).

– Flash the binary using module programmer user guide on the custom hardware or

GS evaluation board and execute in RUN mode. (Refer “GS2K Module

Programming User Guide”).

2. Design the custom hardware by following the design guidelines. (Refer GS2xxxM

Hardware Design Guidelines)

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3. Develop Host firmware

– Following Live Calibrations commands are highly recommended to be issued

before doing any Wi-Fi operations:

AT+WLCALERASE

AT+RESET

AT+WLCALSTART=1

– Interface host application using AT commands. (Refer GS2xxxM S2W Adapter

Command Reference Guide)

Configure the serial interface (UART/SPI/SDIO) as required, refer UART,

page 35, SPI Interface and Configuration, page 39 and SDIO Interface, page 55 for

mode, polarity.For software interface, choose Command & Response, Byte

stuffing/de-stuffing as “None” for UART and SDIO options.

– Issue general, power save, and security related commands as required.

– Start connection to an Access Point or do provisioning as required.

– Obtain IP Address and Start Data Transfer.

– Select advanced services if any.

4. Debug Host and GainSpan module

– Debug using provided AT commands and other options if required. (Refer

GS2xxxM S2W Adapter Command Reference Guide)

– Analyze using Wire shark over wireless. For more details, refer information about

AirPcap Nx in http://www.riverbed.com

5. Production Process

– Perform generic recommendations in production line

– Check if Live Calibration needs to be explicitly controlled (rarely used),

– Perform RF tests

NOTE: For desired functionality use appropriate AT Commands. Refer “GS2K

S2W Reference Use Case User Guide”

NOTE: Refer to “GS2K S2W Reference Use Case User Guide” document for

detailed use cases and examples.

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Telit Wireless Solutions GS2101M Series Reference guide

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