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Telit WE866Cx User Manual

WE866Cx Wi-Fi and Bluetooth
Network Interface Card (NIC)
User Guide
1VV0301545 Rev. 11 – 2020-08-12
WE866Cx Wi-Fi and Bluetooth Network Interface Card (NIC) User Guide
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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 licensors 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 programs, including the exclusive right to copy or reproduce in any form the copyrighted computer 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 copied (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.
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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.
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APPLICABILITY TABLE

PRODUCTS
WE866C3
WE866C6
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CONTENTS

NOTICE….. ......................................................................................................... 2
COPYRIGHTS .................................................................................................... 2
COMPUTER SOFTWARE COPYRIGHTS ........................................................ 2
USAGE AND DISCLOSURE RESTRICTIONS ................................................. 3
APPLICABILITY TABLE.................................................................................... 4
CONTENTS ........................................................................................................ 5
FIGURE LIST ...................................................................................................... 9
1. INTRODUCTION............................................................................ 10
1.1. Scope ............................................................................................. 10
1.2. Audience ........................................................................................ 10
1.3. Contact Information and Support ................................................... 10
1.4. Text Convention ............................................................................. 11
1.5. Related Documents........................................................................ 12
2. OVERVIEW .................................................................................... 13
2.1. Hardware Components .................................................................. 13
2.1.1. Linux Host ...................................................................................... 14
2.1.2. WE866Cx Modules ........................................................................ 14
2.1.3. SDIO Interconnect.......................................................................... 14
2.1.4. UART Interconnect......................................................................... 14
2.2. Software Components ................................................................... 14
2.2.1. Linux Application ............................................................................ 15
2.2.1.1. WPA Supplicant .............................................................................. 15
2.2.1.2. WPA CLI ......................................................................................... 15
2.2.1.3. Hostapd .......................................................................................... 15
2.2.1.4. Hostapd CLI .................................................................................... 15
2.2.1.5. UserApp .......................................................................................... 15
2.2.1.6. BT App............................................................................................ 15
2.2.2. WE866Cx Wi-Fi and Bluetooth Software Package ....................... 15
2.2.2.1. WE866Cx Wi-Fi Driver ................................................................... 15
2.2.2.2. WE866Cx Firmware ....................................................................... 15
2.2.2.3. Bluetooth Software ......................................................................... 15
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3. REFERENCE PLATFORM ............................................................ 17
3.1. X86 PC Host Platform .................................................................... 17
3.2. Arm Cortex A9 Embedded Platform .............................................. 17
3.2.1. MCIMX6SLL-EVK .......................................................................... 17
3.2.2. MCIMX6Q-SDB .............................................................................. 18
3.3. WE866Cx Module NIC Card .......................................................... 19
4. BUILDING WLAN AND BLUETOOTH SOFTWARE ................... 21
4.1. X86 PC Host Platform .................................................................... 21
4.2. ARM Cortex A9 Embedded Platform ............................................. 21
4.3. WE866Cx Wi-Fi and Bluetooth Software Package ....................... 21
4.3.1. Building WE866Cx Wi-Fi Driver ..................................................... 21
4.3.2. Loading WE866Cx Wi-Fi Driver ..................................................... 21
4.3.3. Building WE866Cx Bluetooth Software ......................................... 22
4.3.4. Loading WE866Cx Bluetooth Software ......................................... 23
4.3.4.1. Bluetooth HCI UART Interface....................................................... 23
4.3.4.2. Bluetooth Firmware ........................................................................ 23
4.3.4.3. Bluetooth Library Files ................................................................... 23
5. WIRELESS NETWORK OPERATIONS ....................................... 24
5.1. WE866Cx WLAN Interface ............................................................ 24
5.2. STA Mode ...................................................................................... 24
5.3. AP Mode ......................................................................................... 26
5.4. Concurrent Mode Operation .......................................................... 28
5.4.1. STA - AP Mode Concurrency ........................................................ 28
5.4.2. STA - P2P Mode Concurrency ...................................................... 29
5.5. P2P Mode....................................................................................... 29
5.5.1. P2P Client Mode ............................................................................ 29
5.5.2. P2P GO Mode ................................................................................ 30
5.6. Throughput Measurement.............................................................. 31
5.6.1. Throughput Commands ................................................................. 31
5.6.1.1. UDP server ..................................................................................... 31
5.6.1.2. UDP Client...................................................................................... 31
5.6.1.3. TCP Server..................................................................................... 31
5.6.1.4. TCP Client ...................................................................................... 31
5.6.2. WE866Cx Throughput Test Requirements ................................... 31
5.6.2.1. Configuring Network Stack Parameters ........................................ 32
5.6.2.2. Enabling Single Core Operation in CPU........................................ 32
5.7. Configuring DFS Master ................................................................ 32
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5.8. Enabling WPA3 Support ................................................................ 32
5.8.1. WPA3 STA Mode ........................................................................... 33
5.8.1.1. Connect to WPA3 SAE-CCMP Mode AP ...................................... 33
5.8.1.2. Connect to WPA3 OWE-CCMP Mode AP ..................................... 33
5.8.1.3. Connect to WPA3 OWE-TRANSITION-CCMP Mode AP ............. 34
5.8.2. WPA3 AP Mode ............................................................................. 34
5.8.2.1. Start SAE Mode AP........................................................................ 34
5.8.2.2. Start SAE + WPA2 PSK Transition Mode AP................................ 35
5.8.2.3. Start OWE Mode AP ...................................................................... 35
5.8.2.4. Start OWE Transition Mode AP ..................................................... 36
6. ENABLING BLUETOOTH FEATURES ........................................ 38
6.1. Testing Bluetooth ........................................................................... 38
6.2. Renaming the Bluetooth Device .................................................... 38
6.3. A2DP Sink ...................................................................................... 38
6.4. A2DP Source.................................................................................. 39
6.5. HID ................................................................................................. 40
6.6. HOGP ............................................................................................. 40
6.7. SPP ................................................................................................ 41
6.7.1. SPP Server..................................................................................... 41
6.7.1.1. Steps to receive a file ..................................................................... 41
6.7.1.2. Steps to send a file......................................................................... 42
6.7.2. SPP Client ...................................................................................... 42
6.7.2.1. Steps to receive a file ..................................................................... 42
6.7.2.2. Steps to send a file......................................................................... 42
6.8. RSP Menu ...................................................................................... 43
APPENDIX A: DOWNLOADING, BUILDING, AND INSTALLING LINUX KERNEL ON
X86 UBUNTU.................................................................................................... 44
A.1 Prerequisites .................................................................................. 44
A.2 Installing Linux Kernel v4.9.11 ....................................................... 44
APPENDIX B: BUILDING AND INSTALLING LINUX KERNEL AND DRIVER ON NXP
I.MX 6 EMBEDDED HOST ............................................................................... 46
B.1 Prerequisites .................................................................................. 46
B.2 Building the Kernel for i.MX 6 Platform.......................................... 46
B.3 Setting up the SD Card .................................................................. 49
B.4 Building WE866Cx Wi-Fi Linux Application for i.MX 6 on EVK Platform .. 51
B.5 Building Bluetooth Application for i.MX6 Host ........................................... 52
7. ACRONYMS .................................................................................. 55
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8. DOCUMENT HISTORY ................................................................. 56
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FIGURE LIST

Figure 2-1 Software Components........................................................................................14
Figure 3-1 i.MX 6SLL EVK Host WLAN Setup ....................................................................17
Figure 3-2 i.MX 6SL-EVK Host WLAN and Bluetooth Setup ..............................................18
Figure 3-3 MCIMX6Q-SDB Board .......................................................................................18
Figure 3-4 WE866Cx Board.................................................................................................19
Figure 3-5 Jumper Position for 1.8v SDIO Signal ...............................................................19
Figure 3-6 Jumper Position for 3.3v SDIO Signal ...............................................................20
Figure 3-7 WE866Cx Bluetooth Extension Connector ........................................................20
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1. INTRODUCTION

1.1. Scope

This user guide provides information required to install and evaluate Telit WE866Cx Wi-Fi and Bluetooth NIC card for Linux hosts. It also provides guidelines to prepare the host platform and start testing the module using the Linux supplicant applications.

1.2. Audience

This document is intended for Telit customers, who are integrators and about to implement their applications using Telit Wi-Fi and Bluetooth NIC module.

1.3. Contact Information and Support

For general contact, technical support services, technical questions and report documentation errors, contact Telit Technical Support at:
• TS-SRD@telit.com
Alternatively, use:
https://www.telit.com/contact-us
For detailed information about where you can buy Telit modules or for recommendations
on accessories and components visit:
https://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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1.4. Text Convention

Danger – This information MUST be followed or catastrophic equipment failure or bodily injury may occur.
Caution or Warning – Alerts the user to important points about integrating the module, if these points are not followed, the module
and end user equipment may fail or malfunction.
Tip or Information – Provides advice and suggestions that may be useful when integrating the module.
All dates are in ISO 8601 format, i.e. YYYY-MM-DD.
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1.5. Related Documents

Please refer to https://www.telit.com/m2m-iot-products/wifi-bluetooth-modules/ for current documentation and downloads.
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2. OVERVIEW

This chapter describes the components and procedures for building a wireless application with a Linux host and Telit WE866Cx Wi-Fi and Bluetooth NIC module.
The Telit WE866Cx module provides IEEE802.11a/b/g/n/ac Wireless LAN and Bluetooth functionalities. It integrates complete MAC, PHY, and RF functionality on a single chip providing a low cost and an easy-to-use solution for adding wireless connectivity to
applications.
WE866Cx modules integrate the required components like crystals, regulators, RF front­end components to provide ready-to-use WLAN radio modules that can be used as NIC cards to provide network connectivity to hosts. These modules are regulated, certified and calibrated for easy integration and building applications instantly without requiring any work on radio connectivity modules.
WE866Cx module provides an SDIO port to interface the WLAN module to a variety of hosts. The SDIO interface provides Ultra High Speed (SDR104) interconnection for faster communication with the host systems that are based on processors with 32-bit/64-bit CPU and MMU which run on Linux operating systems. The Linux host runs the WLAN drivers, the network stack, the supplicant and authenticator 802.11 security applications to establish an 802.11 based Wireless LAN network using the WE866Cx module.
Standard Linux applications such as “wpa_supplicant” and “hostapd” are used for control path communications and standard Linux data path is used for data communications, and no custom software required.
WE866Cx module also provides a UART port to interface the Bluetooth module to the host. The UART interface is connected to the standard “tty” interface in the host.
The WE866Cx Bluetooth module provides the controller functionalities. The Bluetooth Stack and applications should be run in the Host. The Bluetooth software provides custom Bluetooth applications to use the Bluetooth module.

2.1. Hardware Components

The following diagram illustrates the hardware components:
Figure :- Hardware Components
WE866Cx Module
Linux Host
(For example, X86 PC, i.MX 6SLL)
WLAN
SDIO Interconnect
UART Interconnect
BT
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The description to the hardware components are as follows:

2.1.1. Linux Host

The Linux host can be any processor system that can run standard Linux software. It can be a high end X86 PC or an embedded platform like i.MX 6SLL. The host processor should be a 32-bit/64-bit system running a suitable Linux operating system.
NOTE:
Currently, WE866Cx driver is supported in both 32-bit & 64-bit Linux OS environments.

2.1.2. WE866Cx Modules

WE866Cx modules acts as NIC card, providing IEEE802.11 a/b/g/n/ac MAC functionalities.

2.1.3. SDIO Interconnect

The SDIO interconnect provides connectivity between the host and WE866Cx module processor.

2.1.4. UART Interconnect

The UART pins are exposed in the FPC extension connector. Host applications can use the HCI layer to communicate with “tty” UART interface. A UART-to-USB converter can be used to interface the BT UART with the host having a USB port.

2.2. Software Components

The following diagram illustrates the software components being used. Telit Wi-Fi NIC host software is provided along with the software package –required to be installed in a directory and built, for details refer to 4Building WLAN and Bluetooth Software.
Figure 2-1 Software Components
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2.2.1. Linux Application

Standard Linux applications are used for network connection setup and management. Following are the standard Linux application:
2.2.1.1. WPA Supplicant
“wpa_supplicant” is a WPA supplicant for Linux, BSD, Mac OS X, and Windows with WPA and WPA2 (IEEE 802.11i / RSN) support. It is suitable for both desktop/laptop computers and embedded systems. The supplicant is IEEE 802.1X/WPA component that is used in the client stations. It implements key negotiation with a WPA Authenticator, controls the roaming and IEEE 802.11 authentication/association of WLAN driver.
2.2.1.2. WPA CLI
“wpa_cli” is a text-based front-end program interacting with “wpa_supplicant”. It is used to get the current status, change configuration, trigger events, and request interactive user input.
2.2.1.3. Hostapd
“hostapd” is a user-space daemon for access point and authentication servers. It implements IEEE 802.11 access point management, IEEE 802.1X/WPA/WPA2/EAP Authenticators, RADIUS client, EAP server, and RADIUS authentication server.
2.2.1.4. Hostapd CLI
“hostapd_cli” utility is a text-based frontend program for interacting with hostapd.
2.2.1.5. UserApp
“UserApp” makes use of networking services to setup socket connections and perform data transfer.
2.2.1.6. BT App
WE866Cx Bluetooth (BT) software provides a custom application to test the Bluetooth functionalities.

2.2.2. WE866Cx Wi-Fi and Bluetooth Software Package

2.2.2.1. WE866Cx Wi-Fi Driver
WE866Cx Wi-Fi driver software package provided by Telit, is a kernel module which implements Wi-Fi driver for interfacing the Linux kernel network control and data path to the WE866Cx Wi-Fi device. It is implemented as an IEEE802.11 Soft-MAC driver to establish communication between the Linux kernel and WE866Cx device. It contains SDIO driver adaptation layer for communication between Linux kernel and WE866Cx device over SDIO interconnect. It also performs queuing and flow control.
2.2.2.2. WE866Cx Firmware
WE866Cx firmware binaries are provided as part of the driver software package. These binaries must be placed at a certain location in the Linux host machine file system. These binaries will be accessed by the WE866Cx device to implement the IEEE 802.11 MAC functionality. It handles scan, association, and data transfer functionality and implements other MAC features, PHY, and RF functionalities.
2.2.2.3. Bluetooth Software
WE866Cx Bluetooth software package comprises of the Fluoride stack and some example applications provided to test the various profiles supported in the package. The WE866Cx Bluetooth module uses the UART interface to communicate with the host. WE866Cx Bluetooth software provides the binaries and configuration files to be used along with the applications to interface the Bluetooth module to the host system. The procedure to build
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the Bluetooth software stack and applications and to run the applications are provided in the sections below.
Telit Wi-Fi and Bluetooth NIC software package “WE866Cx.tar.gz” consists of Telit Wi-Fi NIC software components and few tools.
Following are the software package contents:
1. apps – This folder contains the supported application software files
2. build – This folder contains scripts and make files to compile the driver software
3. drivers – This folder contains driver source code files and make files a. patches – This folder contains required patch files to be used in the Linux host
system
b. firmware – This folder contains binary images needed to run the WE866Cx
device
4. bsp – This folder contains the files that support the bringing up of the platform a. i.mx6 – This folder contains patch file for i.MX6 (ARM) platform.
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3. REFERENCE PLATFORM

This chapter describes the reference platform used to demonstrate the solution, the setup and applications used.

3.1. X86 PC Host Platform

WE866Cx driver is supported with both x86 and x86_64 Linux hosts.
• “Lenovo ThinkPad T410i” laptop is used as the x86 PC host, to test WE866Cx WLAN module. This host machine is booted with Ubuntu 16.04, 32-bit OS Linux kernel version 4.9.11.
• “Lenovo ThinkPad T430” laptop is used as the x86_64 PC host, to test WE866Cx WLAN module. This host machine is booted with Ubuntu 16.04, 64-bit OS Linux kernel version 4.9.11.

3.2. Arm Cortex A9 Embedded Platform

WE866Cx module is tested with Arm architecture based on i.MX 6 series embedded host platforms. The products based on the i.MX 6 application processors enable cost effectiveness, rapid development of multimedia applications for Android and Linux operating systems.

3.2.1. MCIMX6SLL-EVK

MCIMX6SLL-EVK board is an embedded host platform based on the i.MX 6SLL processor. i.MX 6SLL application processor is a single Arm® Cortex®-A9, which operates up to a speed of 1GHz. This board has an SD card slot supporting SDIO 3.0 mode to plug WE866Cx target board for testing. Products based on the i.MX 6SLL application processors enables cost effective, rapid development of multimedia applications for Android® and Linux® operating systems.
Figure 3-1 i.MX 6SLL EVK Host WLAN Setup
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Figure 3-2 i.MX 6SL-EVK Host WLAN and Bluetooth Setup

3.2.2. MCIMX6Q-SDB

MCIMX6Q-SDB is an embedded host board based on the i.MX 6Quad core processor, which belongs to i.MX 6 family of Application processors. i.MX 6Quad processor has four Arm® Cortex®-A9 CPUs, clocking at a speed of 1GHz and using 1GB DDR3 SRAM. This board has an SD card slot capable of supporting SDIO 3.0 mode to plug WE866Cx target board for testing.
Figure 3-3 MCIMX6Q-SDB Board
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