NXP 88MW32X 802.11n Wi-Fi® Microcontroller SoC User guide

Brand: NXP

Model: 88MW32X 802.11n Wi-Fi® Microcontroller SoC

Type: User guide

The NXP 88MW32X 802.11n Wi-Fi® Microcontroller SoC is a highly integrated solution for various IoT applications, providing reliable and efficient wireless connectivity. With its ability to connect to existing Wi-Fi networks or create its own, this device opens up a wide range of possibilities for smart home, industrial automation, and other IoT projects. The 88MW32X supports multiple communication protocols, including TCP/IP, UDP, and HTTP, enabling seamless data exchange with other devices or cloud platforms.

UM11449

88MW32x Labtool User Guide

Rev. 2.0 — 4 August 2020 User manual

Document information

Information Content

Keywords Labtool setup, DUT setup, Labtool usage, Wi-Fi Labtool commands

Abstract Provides the instructions to set up the testing environment, and the

commands to test Wi-Fi RF.

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Revision history

Document revision history

Revision Date Description

2.0 4-Aug-2020 Applied NXP branding, format and numbering scheme. No changes in the content.

1.0 11-Mar-2019 Initial release

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1 Introduction

This document provides an overview of Labtool for 88MW320 and 88MW322 devices.

Labtool is a software test tool used to control and run various RF and regulatory

compliance tests.

1.1 Related documents

Table 1. Related documents

Document type Descriptive title

Datasheet 88MW320-88MW322 Wireless Microcontroller - IEEE 802.11n/g/b

Reference design

documents

RD-88MW320-QFN-1B-2A v1.0 reference design documents -

Schematics, ASCII files, Gerber files, Pad layout, and bill of material

Reference design

documents

RD-88MW322-QFN-1B-2A v1.0 reference design documents -

Schematics, ASCII files, Gerber files, Pad layout, and bill of material

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2 Overview

The Labtool application runs on a Windows PC. The Device Under Test (DUT) needs to

run the bridge application and MFG firmware. The PC is connected to the DUT via the

USB Virtual UART interface.

Figure 1 shows the Labtool test setup structure.

Figure 1. Labtool test setup

Ensure to calibrate the RF cable losses on the Manufacturing (MFG) test setup across

different frequencies. This can be accomplished by using a network analyzer to measure

the entire path loss (S21).

For example, the entire path loss between the RF tester and the 88MW32x reference

design is measured from the N-Type to SMA adapter and DC block that connects to the

RF tester all the way to the W.FL cable/probe end that connects to the W.FL connector

on the 88MW32x reference designs.

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3 Wi-Fi MFG firmware and bridge setup

This section describes the procedure on how to setup the Wi-Fi MFG firmware and

launch the bridge on a host PC to start the test.

The bridge firmware and Wi-Fi MFG firmware are located in the 88MW32x Flash. The

host Labtool communicates with the DUT firmware thru the virtualized UART interface.

See Figure 2.

Figure 2. Labtool, bridge, and Wi-Fi MFG firmware

Program the bridge firmware and WLAN MFG firmware into the Flash through the

88MW32x reference design. The bridge firmware can be built thru the Software

Development Kit (SDK) environment. The Labtool release package includes the WLAN

MFG firmware.

Perform the following tasks:

1. Follow the document “Development-Host-Setup.pdf” in the SDK document package to

set up the environment to compile.

2. Follow the document “DeveloperReference-BuildSystem.pdf” to make the bridge

firmware.

3. Follow the document “Developing with WMSDK.pdf” and use the tool “flashprog.py”

in the SDK package to program the bridge firmware and WLAN MFG firmware into

Flash.

When setting up the environment to compile and preparing to build the bridge firmware,

configure as follows:

1. Execute the following command:

>make config

2. In the menu, choose the following options:

1.88MC200-based Platforms (CPU_MC200)

2.88MW300-based Platforms (CPU_MW300)

Platform type >

Choice {2-1]: 2

1.878x-based Chipset (WiFi-878x)

2.8801-based Chipset (WiFi-8801)

Wi-Fi Chipset >

Choice {2-1]: 2

Configures UART rcv Buffers of size 1024 (UART_LARGE_RCV_BUF) {N/Y]:Y

3. Keep the other parameters as the default configuration.

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4 Labtool setup

4.1 Environment setup

The host PC runs on a 64-bit Windows operating system. The procedure to set up the

environment is as follows.

Step 1 - Download and extract 88MW32x MFG firmware

Download the latest 88MW32x MFG firmware release from NXP website. The last MFG

release version of the 88MW30x is reused for 88MW32x SoC.

Unzip the MFG firmware release package into any directory. Inside the release package,

there are a few folders.

• FwImage folder contains the MFG firmware for the 88MW32x device

• Labtool folder contains the tool used to control the 88MW32x device for the MFG tests

and physical layer tests

Figure 3 shows the files in the MFG firmware release package.

Figure 3. Files in MFG firmware release package

Figure 4 shows the Labtool folder content.

Figure 4. Labtool folder content

The Labtool folder includes:

• DutApiWiFiMW30xBridgeUart.exe: Labtool executable

• SetUp.ini: Configuration file for Labtool executable

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4.1.1 Step 2 - Edit Setup.ini file

Open the “SetUp.ini” file using a text editor. Edit the ComNo parameter to match the USB

serial port number of the host. For the reference design boards, it will be virtualized as

two UART ports. Use a big port number.

[COMSET]

ComNo = 11

BaudRate = 1500000

Install the Zadig USB driver using the following link on the Windows PC for the reference

design board:

http://zadig.akeo.ie/

Once installed, the USB serial port number can be found in the Device Manager (see

Figure 5). Choose either the DB9 connector or Future Technologies Device International

(FTDI) based on the USB serial connector to connect to the Windows PC.

Figure 5. Virtual UART ports in Device Manager

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4.2 Starting Labtool

Ensure the bridge application is running prior to starting the Labtool application. The

procedure to start the Labtool application is as follows:

1. Double-click on DutApiWiFiMW30xBridgeUart.exe file.

Figure 6 shows the Labtool start window for 88MW32x device.

Figure 6. Labtool start window

2. At the command prompt, enter 1 to start WLAN radio operation.

3. To confirm whether the bridge and host setups are working properly, issue the

command 88 to check the firmware and Labtool version number.

If the correct version numbers are returned, start the RF test procedure.

If the version numbers are incorrect, check the host, DUT, and bridge connections.

Confirm the WLAN driver is installed correctly.

Figure 7 shows the correct state of the Command 88 execution for the 88MW32x

device.

Figure 7. Command 88 execution

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4. Each time a Labtool command is executed, the console returns a status byte. A

successful command execution is indicated by a status byte with all 0s. See Figure 8.

Figure 8. Status - Successful command execution

A failed command returns invalid data and is indicated by a non-0 status byte

(0x00000001 to 0xFFFFFFFF). See Figure 9. This could indicate a problem with the

communication to the DUT, incorrect firmware, no firmware download, wrong version

of Labtool/firmware, and so on.

Figure 9. Status – Failed command execution

5. Enter a ? at the Labtool prompt to list all the available commands.

4.3 Closing Labtool

To close Labtool application, issue the command 99.

4.4 Exiting Labtool

Issue the command 99 twice to fully exit the Wi-Fi section and Labtool application.

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5 Labtool usage

The 88MW32x Labtool realizes its functions (such as enable Tx/Rx tests) through the

related Labtool commands.

• The Labtool commands are listed in the Command Line Interface (CLI) menu. To get

the CLI menu, enter ? at the command prompt in the main window.

• Enter <command number>? for the detailed usage and help file of each command.

For example:

Enter 88?.

The detailed Command 88 usages (including command options) and related help file

are shown in the main window.

5.1 Wi-Fi Labtool commands

Table 2 shows a summary of the commands available.

Table 2. Wi-Fi Labtool command summary

Command

Command 9: Get Tx/Rx antenna configuration

Command 11: Get RF channel configuration

Command 12: Set RF channel configuration

Command 18: Set transmitter in CW mode

Command 25: Transmit with duty cycle Tx mode

Command 35: Transmit with SIFS gap

Command 44: Set the storage type configuration

Command 46: Write the MAC address

Command 53: Set the calibration data to storage from the text file

Command 54: Get the calibration data from storage into a text file

Command 88: Get the firmware/hardware Version

Command 95: Get XTAL calibration offset

Command 96: Set XTAL calibration offset

Command 99: Exit Labtool application

Command 147: Get free lines in OTP

Command 170: Get the low-power mode configuration

Command 171: Set the low-power mode configuration

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5.1.1 Command 9: Get Tx/Rx antenna configuration

This command gets the Tx/Rx antenna configuration.

Syntax: 9

Returns:

Tx/Rx antenna configuration

01 = antenna A

10 = antenna B

5.1.2 Command 10: Set Tx/Rx antenna configuration

This command sets the Tx/Rx antenna configuration.

Syntax: 10 <Antenna>

Where:

Parameter Description

Antenna Tx/Rx antenna path

01: antenna A

10: antenna B

Example:

10 2 // sets Tx/Rx to antenna B

Returns:__

5.1.3 Command 11: Get RF channel configuration

This command gets the RF channel configuration.

Syntax: 11

Returns:

RF channel configuration

5.1.4 Command 12: Set RF channel configuration

This command sets the RF channel configuration.

Syntax: 12 <channel>

Where:

Parameter Description

channel Channel number

Example:

12 6 // sets the RF channel 6.

Return: __

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5.1.5 Command 18: Set transmitter in CW mode

This command transmits using an un-modulated carrier that transmits using a

Continuous Wave (CW).

Syntax: 18 <Enable>

Where:

Parameter Description

Enable Mode enable

0: disable (default)

1: enable

Examples:

18 0 // turns on transmission

18 1 // turns off transmission

Returns: __

5.1.6 Command 22: Set Tx power using calibration data

This command sets the Tx power at the antenna using the stored calibration data.

Syntax: 22 <channel> <power> <data type>

Where:

Parameter Description

channel Tx channel

power Tx power level in dBm

data type Modulation

0: CCK (default)

1: OFDM

Example:

22 1 13 1 // sets a power level of 13 dBm to channel 1 at OFDM modulation rates

Returns:__

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5.1.7 Command 25: Transmit with duty cycle Tx mode

This command places the device in duty cycle mode after the power is manually set. This

emulates packet based transmission with a packet-to-packet gap specified by the beacon

interval.

Syntax: 25 <Enable> <Data rate>

Parameter Description

Enable Mode enable

0: disable

1: enable

Data rate Data rate. Refer to Table 3 for the mapping.

Examples:

25 1 13 // sets the duty cycle transmit at 54 Mbit/s

25 1 22 // sets the duty cycle transmit at HT_MCS7

25 0 // turns off the transmission

Table 3. Data rate ID

ID Data rate ID Data rate ID Data rate

1 1 Mbit/s 6 6 Mbit/s 15 HT_MCS0

2 2 Mbit/s 7 9 Mbit/s 16 HT_MCS1

3 5.5 Mbit/s 8 12 Mbit/s 17 HT_MCS2

4 11 Mbit/s 9 18 Mbit/s 18 HT_MCS3

5 Reserved 10 24 Mbit/s 19 HT_MCS4

— — 11 36 Mbit/s 20 HT_MCS5

— — 12 48 Mbit/s 21 HT_MCS6

— — 13 54 Mbit/s 22 HT_MCS7

— — 14 Reserved — —

5.1.8 Command 32: Get and clear Rx packet count

This command gets the Rx packet count, and clears the Rx packet counter (stop Rx

Frame Error Rate (FER) test).

Syntax: 32

Returns:

• Rx packet count

• Multi-cast

• Error count

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5.1.9 Command 35: Transmit with SIFS gap

This command continuously transmits standard 802.11 packets with an adjustable time

gap specified by a configurable Short Interframe Space (SIFS) interval.

Syntax: 35 <Enable> <Data rate> <AdjustTxBurstGap> <BurstSifsInUs>

Where:

Parameter Description

Enable Mode enable

0: disable

1: enable

Data rate Data rate. Refer to Table 3 for the mapping.

AdjustTxBurstGap Adjust Tx burst gap

0 = disable (default)

1 = enable

BurstSifsInUs Burst SIFS (μs)

Minimum is 0 μs. Maximum is 255 μs

Len Packet byte length (in hexadecimal)

… Other parameters. Use the default if not specified

Examples:

35 1 13 1 20 400 // sets the duty cycle transmit with SIFS gap of 20 μs at 54 Mbit/

s and 1024 bytes

5 1 22 1 45 200 // sets the duty cycle transmit with SIFS gap of 45 μs at

HT_MCS7 and 512 bytes

35 0 // turns off the transmission with SIFS interval

5.1.10 Command 44: Set the storage type configuration

This command sets the storage type for Read/Write during the Labtool session.

Syntax: 44 <option>

Where:

Parameter Description

option Storage Type

00: EEPROM

01: NO_EPPROM (see configuration calibration file)

10: OTP

11: Flash

Examples:

44 // reads back the storage type

44 2 // sets the storage type to OTP for subsequent Read/Write

Returns: The storage type if there is no option in the command.

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5.1.11 Command 45: Read the MAC address from OTP

This command returns the MAC address. Before this operation, the storage type must be

set to One Time Programmable (OTP).

Syntax: 45

Returns: MAC address

5.1.12 Command 46: Write the MAC address

This command writes the MAC address. Before this operation, the storage type must be

set to OTP.

Syntax: 46 <MAC Address>

Where:

Parameter Description

MAC Address MAC address in In xx.xx.xx.xx.xx.xx format

Example:

46 00.50.43.21.12.34 // writes MAC address 00.50.43.21.12.34 to OTP

Returns: __

5.1.13 Command 53: Set the calibration data to storage from the text file

This command sets the calibration data to storage from the calibration data text file

(WlanCalData_ ext.conf). This allows the generation of a golden calibration file.

Syntax: 53

Examples:

44 1 // sets NO_EEPROM as storage type

53 // generates the calibration data file in .conf format (WlanCalData_ ext.conf) from

the text format (CalWlanDataFile.txt)

Returns: __

5.1.14 Command 54: Get the calibration data from storage into a text file

This command gets the calibration data from storage and saves it to

CalWlanDataFile_Upload.txt text file. This allows editing of available annex parameters

such as XTAL code, and FEM_loss.

Syntax: 54

Returns: __

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5.1.15 Command 88: Get the firmware/hardware Version

This command returns the firmware, hardware, and Labtool versions.

Syntax: 88

Returns: the firmware/hardware information:

• DLL version

• Labtool version

• Firmware version

• Manufacturing version

• SoC version

• Baseband version

• RF version

• OR version

• Customer ID version

5.1.16 Command 95: Get XTAL calibration offset

This command gets the 8-bit crystal calibration offset.

Syntax: 95

Returns: the 8-bit crystal calibration offset

5.1.17 Command 96: Set XTAL calibration offset

This command sets the 8-bit crystal calibration offset to adjust the frequency offset when

viewed on a Vector Signal Analyzer (VSA), a spectrum analyzer, or a frequency counter.

Syntax: 96 <XTAL offset value>

Where:

Parameter Description

XTAL offset value Crystal offset value in the range of 0x00 to 0xFF

Default: 0x80

Example:

96 B1 // sets XTAL offset value to 0xB1.

Returns: __

5.1.18 Command 99: Exit Labtool application

This command exits the Wi-Fi menu. Use the command 99 a second time to exit Labtool

applicaiton and close the command prompt window.

Syntax: 99

Returns:__

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5.1.19 Command 147: Get free lines in OTP

This command checks and returns the free lines in OTP.

Syntax: 147

Returns: the free lines on OTP

5.1.20 Command 170: Get the low-power mode configuration

This command gets the Tx low-power mode configuration.

Syntax: 170

Returns: Tx low-power mode

0: disable

1: enable free lines on OTP

5.1.21 Command 171: Set the low-power mode configuration

This command sets the Tx low-power mode configuration.

Syntax: 171 <Enable>

Where:

Parameter Description

Enable Low-power mode enable

0 = disable

1 = enable

Example:

171 1 // enables Tx low-power mode

Returns: __

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6 Acronyms and abbreviations

Table 4. Acronyms and abbreviations

Acronym Description

AP Application Processor

API Application Programming Interface

CCK Complementary Code Keying

CLI Command Line Interface

CW Continuous Wave

DUT Device Under Test

EEPROM Electrically Erasable Programmable Read Only Memory

FER Frame Error Rate

FTDI Future Technology Devices International

MAC Media/Medium Access Controller

MCS Modulation and Coding Scheme

MCU Microcontroller Unit

MFG Manufacturing

OFDM Orthogonal Frequency Division Multiplexing

OTP One Time Programmable

PC Personal Computer

RF Radio Frequency

Rx Receive

SDK Software Development Kit

SIFS Short Interframe Space

SMA SubMiniature version A

SoC System-on-Chip

Tx Transmit

UART Universal Asynchronous Receive/Transmitter

USB Universal Serial Bus

VHT Very High Throughput

VSA Vector Signal Analyzer

XTAL Crystal

Wi-Fi Hardware implementation of IEEE 802.11 for wireless connectivity

WLAN Wireless Local Area Network

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7 Legal information

7.1 Definitions

Draft — A draft status on a document indicates that the content is still

under internal review and subject to formal approval, which may result

in modifications or additions. NXP Semiconductors does not give any

representations or warranties as to the accuracy or completeness of

information included in a draft version of a document and shall have no

liability for the consequences of use of such information.

7.2 Disclaimers

Limited warranty and liability — Information in this document is believed

to be accurate and reliable. However, NXP Semiconductors does not

give any representations or warranties, expressed or implied, as to the

accuracy or completeness of such information and shall have no liability

for the consequences of use of such information. NXP Semiconductors

takes no responsibility for the content in this document if provided by an

information source outside of NXP Semiconductors. In no event shall NXP

Semiconductors be liable for any indirect, incidental, punitive, special or

consequential damages (including - without limitation - lost profits, lost

savings, business interruption, costs related to the removal or replacement

of any products or rework charges) whether or not such damages are based

on tort (including negligence), warranty, breach of contract or any other

legal theory. Notwithstanding any damages that customer might incur for

any reason whatsoever, NXP Semiconductors’ aggregate and cumulative

liability towards customer for the products described herein shall be limited

in accordance with the Terms and conditions of commercial sale of NXP

Semiconductors.

Right to make changes — NXP Semiconductors reserves the right to

make changes to information published in this document, including without

limitation specifications and product descriptions, at any time and without

notice. This document supersedes and replaces all information supplied prior

to the publication hereof.

Suitability for use — NXP Semiconductors products are not designed,

authorized or warranted to be suitable for use in life support, life-critical or

safety-critical systems or equipment, nor in applications where failure or

malfunction of an NXP Semiconductors product can reasonably be expected

to result in personal injury, death or severe property or environmental

damage. NXP Semiconductors and its suppliers accept no liability for

inclusion and/or use of NXP Semiconductors products in such equipment or

applications and therefore such inclusion and/or use is at the customer’s own

risk.

Applications — Applications that are described herein for any of these

products are for illustrative purposes only. NXP Semiconductors makes

no representation or warranty that such applications will be suitable

for the specified use without further testing or modification. Customers

are responsible for the design and operation of their applications and

products using NXP Semiconductors products, and NXP Semiconductors

accepts no liability for any assistance with applications or customer product

design. It is customer’s sole responsibility to determine whether the NXP

Semiconductors product is suitable and fit for the customer’s applications

and products planned, as well as for the planned application and use of

customer’s third party customer(s). Customers should provide appropriate

design and operating safeguards to minimize the risks associated with

their applications and products. NXP Semiconductors does not accept any

liability related to any default, damage, costs or problem which is based

on any weakness or default in the customer’s applications or products, or

the application or use by customer’s third party customer(s). Customer is

responsible for doing all necessary testing for the customer’s applications

and products using NXP Semiconductors products in order to avoid a

default of the applications and the products or of the application or use by

customer’s third party customer(s). NXP does not accept any liability in this

respect.

Export control — This document as well as the item(s) described herein

may be subject to export control regulations. Export might require a prior

authorization from competent authorities.

Evaluation products — This product is provided on an “as is” and “with all

faults” basis for evaluation purposes only. NXP Semiconductors, its affiliates

and their suppliers expressly disclaim all warranties, whether express,

implied or statutory, including but not limited to the implied warranties of

non-infringement, merchantability and fitness for a particular purpose. The

entire risk as to the quality, or arising out of the use or performance, of this

product remains with customer. In no event shall NXP Semiconductors, its

affiliates or their suppliers be liable to customer for any special, indirect,

consequential, punitive or incidental damages (including without limitation

damages for loss of business, business interruption, loss of use, loss of

data or information, and the like) arising out the use of or inability to use

the product, whether or not based on tort (including negligence), strict

liability, breach of contract, breach of warranty or any other theory, even if

advised of the possibility of such damages. Notwithstanding any damages

that customer might incur for any reason whatsoever (including without

limitation, all damages referenced above and all direct or general damages),

the entire liability of NXP Semiconductors, its affiliates and their suppliers

and customer’s exclusive remedy for all of the foregoing shall be limited to

actual damages incurred by customer based on reasonable reliance up to

the greater of the amount actually paid by customer for the product or five

dollars (US$5.00). The foregoing limitations, exclusions and disclaimers

shall apply to the maximum extent permitted by applicable law, even if any

remedy fails of its essential purpose.

Translations — A non-English (translated) version of a document is for

reference only. The English version shall prevail in case of any discrepancy

between the translated and English versions.

7.3 Trademarks

Notice: All referenced brands, product names, service names and

trademarks are the property of their respective owners.

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Tables

Tab. 1. Related documents ........................................... 3

Tab. 2. Wi-Fi Labtool command summary ...................10

Tab. 3. Data rate ID .................................................... 13

Tab. 4. Acronyms and abbreviations ...........................18

Figures

Fig. 1. Labtool test setup ..............................................4

Fig. 2. Labtool, bridge, and Wi-Fi MFG firmware ..........5

Fig. 3. Files in MFG firmware release package ............6

Fig. 4. Labtool folder content ....................................... 6

Fig. 5. Virtual UART ports in Device Manager ............. 7

Fig. 6. Labtool start window ......................................... 8

Fig. 7. Command 88 execution .................................... 8

Fig. 8. Status - Successful command execution ...........9

Fig. 9. Status – Failed command execution ................. 9

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NXP 88MW32X 802.11n Wi-Fi® Microcontroller SoC User guide

NXP 88MW32X 802.11n Wi-Fi® Microcontroller SoC User guide

NXP 88MW32X 802.11n Wi-Fi® Microcontroller SoC User guide

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