CS GUIDE OTA VSP

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User Guide

Laird OTA VSP Application

Version 1.0

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

REVISION HISTORY

Version

Date

Notes

Contributors

Approver

1.0

Initial version

J a m i e M c c r a e

Jonathan Kaye

Laird OTV VSP Application 
User Guide 
Embedded Wireless Solutions Support Center: 
http://ews-support.lairdtech.com 
www.lairdtech.com/bluetooth 
 

© Copyright 2018 Laird. All Rights Reserved 
Americas: +1-800-492-2320 
Europe: +44-1628-858-940 
Hong Kong: +852 2923 0610 
 
 
CONTENTS 
Overview ............................................................................................................................................................................. 5 
1 Requirements ............................................................................................................................................................ 5 
2 Downloading and Installing ....................................................................................................................................... 5 
2.1 Linux ..................................................................................................................................................................... 5 
2.2 Mac ...................................................................................................................................................................... 6 
2.3 Android ................................................................................................................................................................ 6 
2.4 iOS ........................................................................................................................................................................ 6 
Next ..................................................................................................................................................................................... 7 
1 Application overview ............................................................................................................................................... 10 
1.1 Main Screen – Not Connected ........................................................................................................................... 10 
1.2 Main Screen – Connected .................................................................................................................................. 11 
1.3 Settings Screen ................................................................................................................................................... 12 
1.4 File Selection Screen .......................................................................................................................................... 13 
1.5 Scan Selection Screen ........................................................................................................................................ 14 
Transferring Files to Target Phone/Device........................................................................................................................ 15 
1 iOS ............................................................................................................................................................................ 15 
2 Android .................................................................................................................................................................... 18 
Enabling Command Mode Hardware VSP ......................................................................................................................... 19 
1.1 BL600 ................................................................................................................................................................. 19 
1.2 BL652 ................................................................................................................................................................. 20 
1.3 BL654 ................................................................................................................................................................. 20 
1.4 BT900 ................................................................................................................................................................. 20 
1.5 RM1xx ................................................................................................................................................................ 21 
Performing an OTA Application Download ....................................................................................................................... 22 
1 Enabling Command Mode Hardware VSP................................................................................................................ 22 
2 Connecting to the Device ......................................................................................................................................... 22 
3 File Selection ............................................................................................................................................................ 23 
4 Downloading ............................................................................................................................................................ 24 
Retrieving module information ......................................................................................................................................... 25 
1 Enabling Command Mode Hardware VSP................................................................................................................ 25 
2 Connecting to the Device ......................................................................................................................................... 25 
3 Retrieving Module Information ............................................................................................................................... 27 
Configuration Options ....................................................................................................................................................... 28 
Enabling Data Length Extensions for faster downloading (v4.2+) .................................................................................... 31 

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

8.1 Enabling DLE on BL654/BL652 ................................................................................................................................. 31

8.2 Enabling DLE on the OTA VSP Application ............................................................................................................... 33

8.3 Downloading an application with DLE enabled ....................................................................................................... 33

8.4 Disabling DLE on the OTA VSP Application .............................................................................................................. 33

8.5 Performance Analysis .............................................................................................................................................. 34

9 Known Issues ..................................................................................................................................................................... 34

10 Tested Devices .................................................................................................................................................................. 35

10.1 Android .................................................................................................................................................................... 35

10.2 Linux ......................................................................................................................................................................... 35

10.3 iOS ............................................................................................................................................................................ 35

10.4 Mac .......................................................................................................................................................................... 35

11 Online XCompiler Service Privacy ..................................................................................................................................... 36

12 License Information .......................................................................................................................................................... 36

13 Acknowledgements ........................................................................................................................................................... 48

14 Additional Documentation ................................................................................................................................................ 57

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

1 OVERVIEW

The Laird OTA VSP application is a cross-platform open-source utility that allows for XCompilation and loading of

smartBASIC application files to Laird’s range of wireless Bluetooth modules including the BL600, BT900, BL652, BL654, and

RM1xx products. This user guide describes how to use the application to program a module and explains the functionality

offered by the application.

1.1 Requirements

The requirements for using this application are shown in Table 1.

Table 1: Application requirements

Android

Linux

Mac

iOS

CPU Architecture

ARM v7a or newer,

x86 with ARM v7a

compatibility

x86, x86_64

or ARM v7a

x86_64

ARM v8a or newer

OS version

4.4 Kitkat or above

Kernel 4.0 or above

with BlueZ 5.0

or newer

10.10 Yosemite

or newer

11 or above (source code

compiles and runs on 9.0

or newer)

Bluetooth version

4.0 or newer

Minimum RAM

1 GB

512 MB

1 GB

512 MB

System packages

–

BlueZ, glib

–

Laird offers a Bluetooth v4.2 USB adapter for Android and Linux devices, the BT851. Further details on the BT851 adapter

can be found on the product page: https://www.lairdtech.com/products/bt850-usb-ble-module

1.2 Downloading and Installing

The Laird OTA VSP application can be found on the iOS and Android application stores. Search for Laird OTA VSP to find and

install it.

1.2.1 Linux

To install on Linux, follow these steps:

1. Download the latest version from the Releases page on the Github project page:

https://github.com/LairdCP/Laird_OTA_VSP/releases

2. Open a terminal utility and change directory to the folder in which the file was downloaded to:

cd Downloads

3. Extract the archive:

tar xf OTA_VSP.tar.gz

4. Qt-based Bluetooth applications need a special permissions flag set to retrieve the type of address when scanning for

device. To set this permission, the executable must not be on a temporary file system or one that prohibits use of

setuid. You must enable this permission using the system’s root account and the full patch to the executable (relative

paths do not work):

sudo setcap cap_net_admin,cap_net_raw+eip /home/user/Downloads/OTA_VSP

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

setcap cap_net_admin,cap_net_raw+eip /home/user/Downloads/OTA_VSP

exit

The application can now be launched:

./OTA_VSP

If you see a message similar to the following in the terminal when launching the application, the permission flag was not set

and connecting to devices will not work:

qt.bluetooth.bluez: Missing CAP_NET_ADMIN permission. Cannot determine

whether a found address is of random or public type.

Ensure that the executable is located on a drive that supports setuid and that the flag is set. You can verify that the flag is

properly set using the following:

getcap /home/user/Downloads/OTA_VSP

1.2.2 Mac

To install on Mac, follow these steps:

1. Download the latest version from the Releases page on the Github project page:

https://github.com/LairdCP/Laird_OTA_VSP/releases

2. Mount the archive and drag the application file to the Applications folder or any other location (such as the Desktop).

The application can now be launched like any other application.

Upon attempting to launch the application, Gatekeeper might show a warning message saying that application execution

was denied, to allow execution…

<TODO>

1.2.3 Android

The Laird OTA VSP application can be installed directly from the google play store by using the following link:

<TODO>

Alternatively, the latest version of the APK can be found on the Github releases page:

https://github.com/LairdCP/Laird_OTA_VSP/releases

1.2.4 iOS

The Laird OTA VSP application can be installed directly from the App Store by using the following link:

<TODO>

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

2 NEXT

Upon opening the application on Android, a dialogue box requests access to the device’s coarse location and external file

access. These are required to use Bluetooth functionality. To access files on the device to be transferred to the target

modules, accept both options by tapping the Allow (Figure 1 and Figure 2).

Figure 1: Read file permission

Figure 2: Coarse location permission

If either permission request is denied, then the application is non-functional (Figure 3).

Figure 3: Permission denied, application non-functional

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

If this occurs, you will need to grant permission by doing the following:

1. From the Settings application, tap Apps (Figure 4).

Figure 4: Settings view

2. Scroll down and tap Laird OTA VSP (Figure 5).

Figure 5: Apps view

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

3. From Laird OTA VSP, tap Permissions (Figure 6).

Figure 6: App settings view

4. Ensure both permission requests are allowed (Figure 7).

Figure 7: Permissions view

The application should now function properly.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

2.1 Application overview

The following images detail the elements of the user interface in each state of the application.

2.1.1 Main Screen – Not Connected

Information display for sent/received data

Click to clear the display

Destination file name on module

Click to begin advertising BLE device search

Busy icon indicator (spinning icon = busy)

Application status bar and version

information

Click to open the file selection dialogue

Selected file source name

Selected file (in bytes)

Click to open the Settings form

Click to cancel pending operation/action

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

2.1.2 Main Screen – Connected

Click to disconnect from the connected

device

Application status bar showing Tx/Rx and

download statistics

Click to start XCompiling (if a source file) and

downloading the application to the module

Click to query the module to return the

type, firmware, and storage information

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

2.1.3 Settings Screen

VSP Service UUID

UUID of VSP service

Tx UUID Offset

VSP Tx characteristic UUID

Rx UUID Offset

VSP Rx characteristic UUID

MO UUID Offset

VSP MO characteristic UUID

MI UUID Offset

VSP MI characteristic UUID

Packet/MTU size

Only adjust when using supported devices

Only show devices

advertising VSP service

Filter devices by those advertising VSP service

More compatible BLE

Scanning

(Android) May resolve scanning issues on some

devices

Delete Existing File

Delete existing application before downloading

Check for sufficient free

storage space

Check module has enough space to store

application

Verify file checksum

(on supported devices)

Verify file was downloaded successfully with a

checksum

Skip download display

Do not display writing commands on log window

Scrollback lines

(0=unlimited)

Number of lines to display in log window

Allow Online

XCompilation

Allows use of the online XCompilation service

Use SSL for Online

Compilation

Enable SSL when using the XCompilation service

Check for latest

firmware when querying

Queries the Laird site for the latest firmware

when

After Successful

Download

Do nothing, disconnect from module, or restart it

once an OTA is completed

Embedded error code

database version

Version of the embedded error code database

Click to save the current settings

Click to restore all settings to their defaults

Click to view application information

Click to discard any changes you made

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

2.1.4 File Selection Screen

Determine where to retrieve the OTA file from:

▪ Local file

▪ Remote URL – (HTTP/HTTPS) Copy the location to your

computer clipboard and click Paste to enter it as the URL.

Click OK to continue or Cancel to stop the file-selection process

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

2.1.5 Scan Selection Screen

List of detected advertising BLE devices – Displays Bluetooth

address, device name, and RSSI.

Note: For Mac/IOS, there is no Bluetooth address.

Click Connect to connect to the selected device or Cancel to

stop scanning or connecting to the device.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

3 TRANSFERRING FILES TO TARGET PHONE/DEVICE

The OTA VSP application supports smartBASIC source files (.txt and .sb file extensions) and XCompiled smartBASIC

applications (.uwc file extension). On Linux/Mac, a file selection dialogue allows a file to be opened from any directory on

the computer or a network drive (if mounted). For mobile devices however, the files must be transferred to the device to

use them.

3.1 iOS

Use the application storage function from iTunes to transfer files directly to the application. To do this, follow these steps:

1. Connect your iOS device (with the Laird OTA VSP application pre-installed) to your PC.

2. Open iTunes and select the iOS device button (Figure 8).

Figure 8: Selecting the iOS device

3. From the iOS device view, select File Sharing (Figure 9):

Figure 9: Selecting the file sharing option

4. In the file sharing view, find and select Laird OTA VSP from the applications with file sharing abilities (Figure 10).

From this view, you can manage files available to the application.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

Figure 10: Selecting the Laird OTA VSP application

5. Click Add to transfer a file from the PC to the iOS device (Figure 11).

Figure 11: Adding a file to the application

6. Navigate to the file location on the computer and select the file to add it to your iOS device. Both smartBASIC source

files (.sb/.txt) and applications (.uwc) files can be added.

7. Once finished, click Done in the bottom right of the iTunes window (Figure 12).

Figure 12: Finished adding files

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

8. Eject the iOS device from the PC as shown in (Figure 13).

You can now open the application and use it with the transferred files, as desired.

Figure 13: Ejecting the attached iOS device

Alternatively, the OTA VSP client supports selecting files from external applications using the Open with… file action. This

allows you to select smartBASIC source and application files from cloud storage applications, email clients, and many other

types of applications.

To use this feature, follow these steps:

1. Select the desired file from the application and select open with Laird OTA VSP.

If there is only an Open with… option, select this and then select Laird OTA VSP. (refer to Figure 14 and Figure 15).

Figure 14: Using "Open In..." Option

Figure 15: Opening file in OTA VSP application

Once the application opens, you should see that the file is loaded and is ready for XCompilation/download. If an error

occurs whilst attempting to open the file, the error message will display.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

3.2 Android

Android has a plugin-based file selection system which allows a file on the device to be chosen. Other applications can also

add selection locations for selecting files from cloud service providers (such as OneDrive, Dropbox, and Google Drive). To

use these providers, you must install the application from the play store and configure it with your user account details –

you can then choose it from the file viewer.

Alternatively, files can be stored on the Android device’s filesystem. To transfer files to the device, follow these steps:

1. Plug it into a computer with a USB cable. A notification displays which may indicate that the device is in a charging

mode.

2. Select USB for charging (Figure 16).

Figure 16: Switching USB modes

3. Select File transfers (Error! Reference source not found. )to allow file system access from the connected computer.

Figure 17: Switching to file transfer mode

A drive displays on the computer under the list of portable devices (Figure 18). We recommend that you create a

unique directory within this drive for the OTA files that you transfer (Figure 19).

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

Figure 18: Android filesystem attached to PC

Figure 19: smartBASIC files on Android device

4 ENABLING COMMAND MODE HARDWARE VSP

The first step to communicating with a module using VSP is to enable command mode hardware VSP. Unlike software VSP

(which can be used as part of an application), hardware VSP is entered at startup by the firmware.

There are two types of VSP:

▪ Bridge mode – All data sent/received over VSP is transmitted to the UART without any interpretation by the module.

▪ Command mode – The VSP interface acts as a second transparent UART interface which allows commands to be

issued as if the module’s UART is connected to a PC in interactive mode.

The steps for entering command mode hardware VSP depend upon the module used. VSP can be enabled on Laird’s DVK

development boards or on customer designs if the required pins can be set to the required state.

4.1.1 BL600

To enable command mode VSP on the BL600 (Figure 20):

▪ SIO_7 must be bridged to Vcc,

▪ The autorun pin (SIO_28) must be set to nAutoRUN (low)

▪ If using OTA on a DVK, the USB_DTR – Autorun pin on CON12 must be switched off

Figure 20: BL600 DIP switch and jumper positions

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

4.1.2 BL652

To enable command mode VSP on the BL652:

▪ Autorun (SIO_13) must be set low

▪ SIO_2 must be set high

This is achieved on the DVK by removing the jumper from J12 and putting a jumper on J5 as shown in Figure 21.

Figure 21: BL652 jumper positions

4.1.3 BL654

To enable command mode VSP on the BL654:

▪ Autorun (SIO_35) must be set low

▪ SIO_2 must be set high

This is achieved on the DVK by removing the jumper from J12 and putting a jumper on J5 as shown in Figure 22.

Figure 22: BL654 jumper positions

4.1.4 BT900

To enable command mode VSP on the BT900 (Figure 23):

▪ The nAutoRun pin (SIO_22) must be set low (autorun)

▪ SIO_19 set low (use a jumper wire on the DVK)

▪ If using OTA on a DVK, the USB_DTR – Autorun pin on CON12 must be switched off

Figure 23: BT900 DIP switch and jumper positions

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

4.1.5 RM1xx

Although there are two types of firmware on the RM1xx, only the peripheral firmware supports VSP mode. You can convert

a module with the central firmware to one with peripheral firmware by using either a Laird QPK or a Segger JLink. See the

Programming RM1xx Modules with the QPK-NRF5x-01 application note which is available from the RM1xx product page of

the Laird website – https://www.lairdtech.com/products/rm1xx-lora-modules

To enable hardware command mode VSP on the RM1xx:

▪ Set Autorun (SIO_25) low

▪ Set SIO_28 high

▪ For the DVK, remove the DTR jumper from J10, place a jumper on J12 pins 1-2 and connect pin 1 of J6 to Vcc (3v3) as

shown in Figure 24.

Figure 24: RM1xx jumper positions

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

5 PERFORMING AN OTA APPLICATION DOWNLOAD

5.1 Enabling Command Mode Hardware VSP

Please follow the section labelled Enabling Command Mode Hardware VSP to enabled command mode hardware VSP on

your target module before proceeding with the next step.

5.2 Connecting to the Device

To connect the device, follow these steps:

1. After enabling VSP, open the Laird OTA VSP application.

2. Apply power to the module (or press the reset button on the board if it already has power).

3. Start scanning for devices by clicking Scan. Your module name should appear in the list of devices (Figure 25).

Note: VSP advertises for ten seconds after the module starts. You may need to press the reset button to restart

advertising.

4. Select the target device and click Connect. The application will attempt to connect to the selected module.

Figure 25: Target module selected

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

5.3 File Selection

To properly select a file, follow these steps:

1. Once connected to the module, select a file to load by clicking … (Figure 26).

Figure 26: Connected to module

2. Select between loading a file off the local device or downloading a file from an internet location (Figure 27).

Figure 27: File type selection

3. Select local file and click OK.

On Linux/Mac, this opens a generic file selection dialog. On Android, this opens the Android file selection dialog

(Figure 28). The top left lines display a list of file providers (local device or cloud service providers).

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

4. Navigate to the desired file and select the application.

Figure 28: Android file selector

5.4 Downloading

To download the selected file, click Download.

Note: Prior to download, the application filename, when saved to the module, can be customized by editing the

Download filename (Figure 29).

Figure 29: File selected, ready to download

If a smartBASIC source file was selected and the online XCompilation option enable in Settings, the download process of the

device to the module begins. The length of time of the download varies depending on the device you are using and the size

of each data packet.

Once the process has completed, a message displays its completion (Figure 30). The device remains connected or it

disconnects and restarts the module (depending on which option you chose in the Settings). The application can now be run

on the module as needed.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

Figure 30: Successful OTA

If an error occurs, the error message and a description display on-screen (Figure 31). The most likely cause of an error is a

full filesystem on the module. This can be erased by issuing the at&f 1 command via a UART connection to the module.

Figure 31: OTA failed

6 RETRIEVING MODULE INFORMATION

6.1 Enabling Command Mode Hardware VSP

Please follow the section labelled Enabling Command Mode Hardware VSP to enabled command mode hardware VSP on

your target module before proceeding with the next step.

6.2 Connecting to the Device

To connect to the device, follow these steps:

1. After enabling VSP, open the Laird OTA VSP application.

2. Apply power to the module (or press the reset button on the board if it already has power).

3. Click Scan to start scanning for devices.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

The name of your module should appear in the list of devices (Figure 32).

Figure 32: Target module selected

4. Select the target device and click Connect. The application attempts to connect to the selected module.

Note: VSP advertises for ten seconds after the module starts.

You may need to press the reset button to restart

advertising.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

6.3 Retrieving Module Information

To retrieve module information, follow these steps:

1. Once connected to the target module, press Query (Figure 33) and wait for the response.

Figure 33: Connected and ready to query

This command queries various information from the module including available storage space, device type, and

firmware version. If Check for latest firmware is enabled in Settings, the latest firmware supported on the module is

also queried.

Once the module responds, the following information displays (Figure 34).

Figure 34: Module information

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

7 CONFIGURATION OPTIONS

There are many configuration options available in the settings page of the OTA VSP application which can be used to fine

tune the OTA process ().

Table 2: OTV VSP application configuration options

Option

Description

VSP Service UUID

The UUID of the VSP service

Note: Currently, you cannot change this on any modules. It is

reserved for possible future use.

Tx UUID Offset

The characteristic UUIDs of the VSP service

Note: Currently, you cannot change these on any modules. They

are reserved for possible future use.

Rx UUID Offset

MO UUID Offset

MI UUID Offset

Packet/MTU (Maximum Transmission Unit) Size

The number bytes sent per each characteristic write.

Note: Do not change this from the default value of 20 unless your

device supports a larger MTU or DLE (data length

extensions) and you have configured the target module

correctly.

Not supported on BL600, BT900, RM1xx, or BL652 firmware earlier

than version 28.7.3.0.

To configure the BL652/BL654, you must enable larger attributes

using the following commands:

at+cfg 211 247

at+cfg 212 244

at+cfg 214 1

at+cfg 216 251

atz

After performing this process and connecting with a supported

device, you should be able to increase the value and transfer

applications to the module at a faster rate. If you get errors when

increasing this value, set it back to the default value of 20.

Only show devices advertising VSP service

If this option is enabled, filtering is performed on discovered

Bluetooth Low Energy (BLE) devices. The devices only display if they

are advertising the VSP service UUID.

This option may cause issues and slow discovery, especially if the

service UUID is in the scan response and the Bluetooth adapter is

performing a passive scan. In this case, disabling this option may be

beneficial.

(Android) More compatible BLE Scanning

Rather than force the device to start scanning for BLE devices, with

this option it searches for all Bluetooth devices and only filters them

when device information has been retrieved.

Enable this option if your device has problems discovering modules.

Delete existing file

If enabled, this overwrites existing files on the module to prevent it

from failing if an application already exists with the same filename.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

Option

Description

Check for sufficient free storage space

If enabled, this checks that the module has sufficient space to store

the application before starting the download process. It prompts a

warning to continue if it doesn’t have enough space.

Verify file checksum (on supported devices)

If enabled, this confirms a successful download by verifying that the

downloaded file checksum matches it’s expected value.

The BL6xx is supported and the BT900 with firmware greater than

or equal to 9.1.12.8 is supported.

If disabled or unsupported, it only checks that the module has a file

with the specified download filename.

Skip download display

If enabled, it skips displaying the file data sent to the module in the

log window. This slightly speeds up the file download process.

Scrollback lines

This option selects the number of display lines to keep in the buffer

before discarding them.

0 = not discarding any.

Allow online XCompilation

If a smartBASIC source file is selected for download (.sb or .txt file

extension), it is XCompiled for the module using the online

XCompiler service. This service allows one file to be loaded to

multiple different modules or firmware versions without needing to

XCompile them on a computer beforehand.

Note: Special or engineering firmware versions may not be

supported by the online XCompilation system. If this is the

case, an error is reported on the device and a pre-compiled

.uwc file must be used instead.

Refer to the Online XCompiler Service Privacy section for privacy

information when using this service.

Use SSL (Secure Sockets Layer) for Online

XCompilation

This option enables using SSL when communicating with the online

XCompilation server. This ensures that the data transmitted and

received is encrypted.

Note: This option should be disabled in countries where encryption

is not legal. Laird takes no responsibility or liability for

customers that enable this where it’s use is prohibited.

Refer to the Online XCompiler Service Privacy section for privacy

information when using this service.

Check for latest firmware when querying

Allows checking that the module is using the latest available

firmware when a query command is used. It does this by

transmitting the module type and firmware version to the online

XCompiler service.

Refer to the Online XCompiler Service Privacy section for privacy

information when using this service.

Laird OTV VSP Application

User Guide

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http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

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Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

Option

Description

After successful download:

▪ Do Nothing

▪ Disconnect from module

▪ Restart Module

Configures what action should be taken after a successful OTA

download. It either does nothing (keep the application connected

to the device), disconnects from the module, or restarts the

module.

If an application is downloaded as $autorun$, it begins executing on

reboot assuming that the autorun pin is set to the correct logic

level.

This option only applies to successful OTA downloads, if an OTA fails

then the application will remain connected.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

8 ENABLING DATA LENGTH EXTENSIONS FOR FASTER DOWNLOADING

(V4.2+)

Packet Data Length Extensions is an optional feature of Bluetooth Low Energy version 4.2 and newer. It allows messages

exchanged between devices to have a larger transmissions size and therefore a faster throughput.

Note: This is an optional feature. Not all Bluetooth chipsets support it. Ensure that your device supports this feature

before attempting to use it.

Laird offers a Bluetooth v4.2 USB adapter for Android and Linux devices with support for DLE – the BT851. Further details

on the BT851 adapter can be found on the product page: https://www.lairdtech.com/products/bt850-usb-ble-module

Enabling DLE only works with a BL654 module or BL652 module with firmware greater than 28.7.3.0. It must be disabled to

communicate with other modules or with devices that do not have DLE enabled.

Note: There is an issue on firmware 28.7.3.0 when using Bluetooth v5 radios #12647. If you are using a v5 radio, please

use a newer firmware).

Note: On some devices that do not support DLE, enabling a larger packet size makes use of long characteristic writes –

multiple fragments of a packet are sent over the air and reassembled into one write by the other device. This may

improve performance of transferring data.

8.1 Enabling DLE on BL654/BL652

The target BL652/BL654 must be connected to a computer to adjust the module’s configuration using a utility such as

UwTerminalX. Refer to the documentation on the BL652 product page or BL654 product page for information on how to

communicate with the module.

Send the following commands to the module in interactive command mode to set the module to enable use of DLE and

restart the module:

at+cfg 211 247

at+cfg 212 244

at+cfg 214 1

at+cfg 216 251

atz

Note that this configuration is global and applies DLE configuration to any applications which are loaded to the module. It is

possible to disable DLE from inside an application if desired using code like the following:

#define ATTRIBUTE_MTU_KEY_ID 211

#define ATTRIBUTE_DATA_LENGTH_KEY_ID 212

#define ENABLE_HIGH_BANDWIDTH_KEY_ID 214

#define BLE_MAX_PACKET_LENGTH_KEY_ID 216

dim rc, nAttributeMTU

rc = NvCfgKeyGet(ATTRIBUTE_MTU_KEY_ID, nAttributeMTU)

IF (nAttributeMTU > 23) THEN

//Disable DLE configuration

rc = NvCfgKeySet(ATTRIBUTE_MTU_KEY_ID, 23)

Laird OTV VSP Application

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Hong Kong: +852 2923 0610

rc = NvCfgKeySet(ATTRIBUTE_DATA_LENGTH_KEY_ID, 20)

rc = NvCfgKeySet(ENABLE_HIGH_BANDWIDTH_KEY_ID, 0)

rc = NvCfgKeySet(BLE_MAX_PACKET_LENGTH_KEY_ID, 27)

//Reset module for configuration update to apply

Reset(0)

ENDIF

If the configuration is applied successfully, success codes display (Figure 35).

Figure 35: DLE configuration applied

If there is an error, the following displays (Figure 36). If you receive an error, ensure that you are using the latest firmware.

Figure 36: DLE unsupported in firmware

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

8.2 Enabling DLE on the OTA VSP Application

To enable DLE on the OTA VSP application, follow these steps:

1. Select Settings from the main interface.

2. Adjust the packet size option from the default of 20 up to a larger value. We recommend a value no larger than 90

(Figure 37).

Figure 37: Increasing packet length to 90

3. Click Save to save changes and return to the main screen.

8.3 Downloading an application with DLE enabled

Follow the normal instructions in the Performing an OTA Application Download section to download with DLE enabled.

8.4 Disabling DLE on the OTA VSP Application

To disable DLE on the OTA VSP application, follow these steps:

1. Select Settings from the main interface.

2. Adjust the packet size option to the default of 20 (Figure 38).

Figure 38: Packet length set back to default

3. Click Save to save changes and return to the main screen of the application.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

8.5 Performance Analysis

We tested how long it takes to load an application to a BL652 module. We enabled/disabled long characteristic writes as

well as DLE. The results gathered are displayed in the following tables.

▪ Android device testing with a Bluetooth v4.1 radio – Long characteristic write performance comparison with BL652

(28.7.3.0) tested with a Nexus 6 (6.0.1) and packet lengths 20 and 90. TCalculated as Without/With*100 – Table 3

▪ Linux device testing – DLE performance comparison with BL652 (28.7.3.0) tested with a Laird BT851 on Arch Linux and

packet lengths 20 and 90. TCalculated as Without/With*100 – Table 4

▪ Testing on a Linux PC and Laird BT851 Bluetooth v4.2 radio with supports long characteristic writes and DLE – Table

The results show a marked improvement in throughput when larger packet sizes are used.

Table 3: Testing on a Nexus 6 Android device

AT Interface

CMD Manager

SmartZ

BL652 Sample App

Transfer size (bytes)

117289

81285

50940

28875

Without DLE (seconds)

374

212

132

With DLE (seconds)

DLE throughput comparisonT

456%

400%

388%

357%

Table 4: Testing on a Linux device

AT Interface

CMD Manager

SmartZ

BL652 Sample App

Transfer size (bytes)

117289

81285

50940

28875

Without DLE (seconds)

214

148

With DLE (seconds)

DLE throughput comparisonT

382%

370%

372%

360%

9 KNOWN ISSUES

▪ (12647) BL652 OTA fails with devices using a Bluetooth v5 radio which supports 2M PHY on firmware version 28.7.3.0

– This is an issue caused by the module not responding to the PHY change event, to resolve the issue please

update the module’s firmware to a newer version than 28.7.3.0.

▪ (12772) BL652 OTA fails with Android devices using a Bluetooth v5 radio with DLE configuration keys enabled on

firmware 28.7.3.0 and 28.7.3.3

– This is an issue caused by Android expecting a response to a command that the BL652 is not sending, to work-

around the issue, restore the DLE config keys of the BL652 back to default and put the packet size in the OTA

VSP application to 20.

▪ (12742) BL654 OTA fails with Android devices using a Bluetooth v5 radio with DLE configuration keys enabled

– This is an issue caused by Android expecting a response to a command that the BL654 is not sending, to work-

around the issue, restore the DLE config keys of the BL654 back to default and put the packet size in the OTA

VSP application to 20.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

10 TESTED DEVICES

10.1 Android

Device

Details

Bluetooth Version

Issues?

Issue Details

Nexus 6

4.1



Nexus 7

4.0



Nexus 9

4.1



Hudl 2

4.0



Pixel 2

5.0



Incompatible with BL652

firmware version 28.7.3.0

10.2 Linux

Device

Details

Bluetooth Version

Issues?

Issue Details

x86_64 laptop

Using BT851 USB

dongle

4.2



Raspberry Pi 3

4.1



10.3 iOS

Device

Details

Bluetooth Version

Issues?

Issue Details

iPod Touch 5g

4.0

iPad X



iPad Mini X



iPhone SE

4.2



iPhone 8

5.0



Incompatible with BL652

firmware version 28.7.3.0

10.4 Mac

Device

Details

Bluetooth Version

Issues?

Issue Details

Late 2012 Macbook

4.0



Late 2012 iMac

4.0



Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

11 ONLINE XCOMPILER SERVICE PRIVACY

Laird takes security and privacy of customer’s data seriously. When a request is made to the online XCompilation server,

some public information is recorded in a log file which consists of the following:

▪ Time and date of the request

▪ Originating IP address

▪ Type of web request and the URL

▪ Destination TCP port

▪ Browser user-agent string

▪ Size of the submitted request

▪ Result code of the submitted request.

This public information only contains meta-data from the request and does not contain any sensitive private data such as

the source code to be XCompiled. Submitted application source code and output XCompiled application files are stored

temporally on the XCompilation server only for the purpose of XCompilation and are purged from the system once the web

request has finished being transmitted back to the client.

Remember: There is the option of communicating with the XCompilation server using unencrypted HTTP and encrypted

HTTPS using SSL (Secure Sockets Layer) which ensures that data exchanged between the client and XCompilation server

cannot be intercepted and decrypted by third parties. We recommend that you keep the SSL option enabled. If you are in a

country that has outlawed encryption, you can disable SSL support by unchecking the checkbox in settings.

Information in the log files may be used for data analytical purposes to monitor common modules or firmware versions

used on the online XCompilation server – this data only includes anonymised data from the log files where the IP address

and browser user-agent have been stripped and does not include any portion of the submitted application source code.

12 LICENSE INFORMATION

Laird OTA VSP and its source code is released under the GNU GPLv3 (not

including LGPL or newer versions) license as described below. You are free

to make any changes to the code so long as you abide by the license terms

and release your modified code under the same license.

GNU GENERAL PUBLIC LICENSE

Version 3, 29 June 2007

Everyone is permitted to copy and distribute verbatim copies

of this license document, but changing it is not allowed.

Preamble

The GNU General Public License is a free, copyleft license for

software and other kinds of works.

The licenses for most software and other practical works are designed

to take away your freedom to share and change the works. By contrast,

the GNU General Public License is intended to guarantee your freedom to

share and change all versions of a program--to make sure it remains free

software for all its users. We, the Free Software Foundation, use the

GNU General Public License for most of our software; it applies also to

any other work released this way by its authors. You can apply it to

your programs, too.

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

When we speak of free software, we are referring to freedom, not

price. Our General Public Licenses are designed to make sure that you

have the freedom to distribute copies of free software (and charge for

them if you wish), that you receive source code or can get it if you

want it, that you can change the software or use pieces of it in new

free programs, and that you know you can do these things.

To protect your rights, we need to prevent others from denying you

these rights or asking you to surrender the rights. Therefore, you have

certain responsibilities if you distribute copies of the software, or if

you modify it: responsibilities to respect the freedom of others.

For example, if you distribute copies of such a program, whether

gratis or for a fee, you must pass on to the recipients the same

freedoms that you received. You must make sure that they, too, receive

or can get the source code. And you must show them these terms so they

know their rights.

Developers that use the GNU GPL protect your rights with two steps:

(1) assert copyright on the software, and (2) offer you this License

giving you legal permission to copy, distribute and/or modify it.

For the developers' and authors' protection, the GPL clearly explains

that there is no warranty for this free software. For both users' and

authors' sake, the GPL requires that modified versions be marked as

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Some devices are designed to deny users access to install or run

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Finally, every program is threatened constantly by software patents.

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The precise terms and conditions for copying, distribution and

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TERMS AND CONDITIONS

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"Copyright" also means copyright-like laws that apply to other kinds of

works, such as semiconductor masks.

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A "User Product" is either (1) a "consumer product", which means any

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doubtful cases shall be resolved in favor of coverage. For a particular

product received by a particular user, "normally used" refers to a

typical or common use of that class of product, regardless of the status

of the particular user or of the way in which the particular user

actually uses, or expects or is expected to use, the product. A product

is a consumer product regardless of whether the product has substantial

commercial, industrial or non-consumer uses, unless such uses represent

the only significant mode of use of the product.

"Installation Information" for a User Product means any methods,

procedures, authorization keys, or other information required to install

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a modified version of its Corresponding Source. The information must

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code is in no case prevented or interfered with solely because

modification has been made.

If you convey an object code work under this section in, or with, or

specifically for use in, a User Product, and the conveying occurs as

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that they are valid under applicable law. If additional permissions

apply only to part of the Program, that part may be used separately

under those permissions, but the entire Program remains governed by

this License without regard to the additional permissions.

When you convey a copy of a covered work, you may at your option

remove any additional permissions from that copy, or from any part of

it. (Additional permissions may be written to require their own

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removal in certain cases when you modify the work.) You may place

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received it, or any part of it, contains a notice stating that it is

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paragraph of section 11).

However, if you cease all violation of this License, then your

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run a copy of the Program. Ancillary propagation of a covered work

occurring solely as a consequence of using peer-to-peer transmission

to receive a copy likewise does not require acceptance. However,

nothing other than this License grants you permission to propagate or

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sale, or importing the Program or any portion of it.

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work thus licensed is called the contributor's "contributor version".

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but do not include claims that would be infringed only as a

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patent sublicenses in a manner consistent with the requirements of

this License.

Each contributor grants you a non-exclusive, worldwide, royalty-free

patent license under the contributor's essential patent claims, to

make, use, sell, offer for sale, import and otherwise run, modify and

propagate the contents of its contributor version.

In the following three paragraphs, a "patent license" is any express

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(such as an express permission to practice a patent or covenant not to

sue for patent infringement). To "grant" such a patent license to a

party means to make such an agreement or commitment not to enforce a

patent against the party.

If you convey a covered work, knowingly relying on a patent license,

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in a country, would infringe one or more identifiable patents in that

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If, pursuant to or in connection with a single transaction or

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work if you are a party to an arrangement with a third party that is

in the business of distributing software, under which you make payment

to the third party based on the extent of your activity of conveying

the work, and under which the third party grants, to any of the

parties who would receive the covered work from you, a discriminatory

patent license (a) in connection with copies of the covered work

conveyed by you (or copies made from those copies), or (b) primarily

for and in connection with specific products or compilations that

contain the covered work, unless you entered into that arrangement,

or that patent license was granted, prior to 28 March 2007.

Nothing in this License shall be construed as excluding or limiting

any implied license or other defenses to infringement that may

otherwise be available to you under applicable patent law.

12. No Surrender of Others' Freedom.

If conditions are imposed on you (whether by court order, agreement or

otherwise) that contradict the conditions of this License, they do not

excuse you from the conditions of this License. If you cannot convey a

covered work so as to satisfy simultaneously your obligations under this

License and any other pertinent obligations, then as a consequence you may

not convey it at all. For example, if you agree to terms that obligate you

to collect a royalty for further conveying from those to whom you convey

the Program, the only way you could satisfy both those terms and this

License would be to refrain entirely from conveying the Program.

13. Use with the GNU Affero General Public License.

Notwithstanding any other provision of this License, you have

permission to link or combine any covered work with a work licensed

under version 3 of the GNU Affero General Public License into a single

combined work, and to convey the resulting work. The terms of this

License will continue to apply to the part which is the covered work,

but the special requirements of the GNU Affero General Public License,

section 13, concerning interaction through a network will apply to the

combination as such.

14. Revised Versions of this License.

The Free Software Foundation may publish revised and/or new versions of

the GNU General Public License from time to time. Such new versions will

be similar in spirit to the present version, but may differ in detail to

address new problems or concerns.

Each version is given a distinguishing version number. If the

Program specifies that a certain numbered version of the GNU General

Public License "or any later version" applies to it, you have the

option of following the terms and conditions either of that numbered

version or of any later version published by the Free Software

Foundation. If the Program does not specify a version number of the

GNU General Public License, you may choose any version ever published

by the Free Software Foundation.

If the Program specifies that a proxy can decide which future

versions of the GNU General Public License can be used, that proxy's

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public statement of acceptance of a version permanently authorizes you

to choose that version for the Program.

Later license versions may give you additional or different

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author or copyright holder as a result of your choosing to follow a

later version.

15. Disclaimer of Warranty.

THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY

APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT

HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY

OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,

THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM

IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF

ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

16. Limitation of Liability.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING

WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS

THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY

GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE

USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF

DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD

PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),

EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF

SUCH DAMAGES.

17. Interpretation of Sections 15 and 16.

If the disclaimer of warranty and limitation of liability provided

above cannot be given local legal effect according to their terms,

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an absolute waiver of all civil liability in connection with the

Program, unless a warranty or assumption of liability accompanies a

copy of the Program in return for a fee.

END OF TERMS AND CONDITIONS

How to Apply These Terms to Your New Programs

If you develop a new program, and you want it to be of the greatest

possible use to the public, the best way to achieve this is to make it

free software which everyone can redistribute and change under these terms.

To do so, attach the following notices to the program. It is safest

to attach them to the start of each source file to most effectively

state the exclusion of warranty; and each file should have at least

the "copyright" line and a pointer to where the full notice is found.

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This program is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program. If not, see <http://www.gnu.org/licenses/>.

Also add information on how to contact you by electronic and paper mail.

If the program does terminal interaction, make it output a short

notice like this when it starts in an interactive mode:

<program> Copyright (C) <year> <name of author>

This program comes with ABSOLUTELY NO WARRANTY; for details type `show

w'.

This is free software, and you are welcome to redistribute it

under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate

parts of the General Public License. Of course, your program's commands

might be different; for a GUI interface, you would use an "about box".

You should also get your employer (if you work as a programmer) or school,

if any, to sign a "copyright disclaimer" for the program, if necessary.

For more information on this, and how to apply and follow the GNU GPL, see

<http://www.gnu.org/licenses/>.

The GNU General Public License does not permit incorporating your program

into proprietary programs. If your program is a subroutine library, you

may consider it more useful to permit linking proprietary applications with

the library. If this is what you want to do, use the GNU Lesser General

Public License instead of this License. But first, please read

<http://www.gnu.org/philosophy/why-not-lgpl.html>.

13 ACKNOWLEDGEMENTS

Laird OTA VSP uses the Qt framework version 5, which is licensed under the

GPLv3 (not including later versions).

Laird OTA VSP uses and may be linked statically to various other libraries

including Xau, XCB, expat, fontconfig, zlib, bz2, harfbuzz, freetype, udev,

dbus, icu, unicode, UPX, OpenSSL. The licenses for these libraries are

provided below:

Lib Xau:

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Permission to use, copy, modify, distribute, and sell this software and its

documentation for any purpose is hereby granted without fee, provided that

the above copyright notice appear in all copies and that both that

documentation.

The above copyright notice and this permission notice shall be included in

all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be

used in advertising or otherwise to promote the sale, use or other dealings

in this Software without prior written authorization from The Open Group.

xcb:

Permission is hereby granted, free of charge, to any person

obtaining a copy of this software and associated

documentation files (the "Software"), to deal in the

Software without restriction, including without limitation

the rights to use, copy, modify, merge, publish, distribute,

sublicense, and/or sell copies of the Software, and to

permit persons to whom the Software is furnished to do so,

subject to the following conditions:

The above copyright notice and this permission notice shall

be included in all copies or substantial portions of the

Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY

KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE

WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR

PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS

BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER

IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the names of the authors

or their institutions shall not be used in advertising or

otherwise to promote the sale, use or other dealings in this

Software without prior written authorization from the

authors.

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expat:

and Clark Cooper

Permission is hereby granted, free of charge, to any person obtaining

a copy of this software and associated documentation files (the

"Software"), to deal in the Software without restriction, including

without limitation the rights to use, copy, modify, merge, publish,

distribute, sublicense, and/or sell copies of the Software, and to

permit persons to whom the Software is furnished to do so, subject to

the following conditions:

The above copyright notice and this permission notice shall be included

in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

fontconfig:

Permission to use, copy, modify, distribute, and sell this software and its

documentation for any purpose is hereby granted without fee, provided that

the above copyright notice appear in all copies and that both that

documentation, and that the name of Keith Packard not be used in

advertising or publicity pertaining to distribution of the software without

specific, written prior permission. Keith Packard makes no

representations about the suitability of this software for any purpose. It

is provided "as is" without express or implied warranty.

KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR

CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

PERFORMANCE OF THIS SOFTWARE.

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This software is provided 'as-is', without any express or implied

warranty. In no event will the authors be held liable for any damages

arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,

including commercial applications, and to alter it and redistribute it

freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not

claim that you wrote the original software. If you use this software

in a product, an acknowledgment in the product documentation would be

appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be

misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.

Jean-loup Gailly Mark Adler

jloup@gzip.org madler@alumni.caltech.edu

bz2:

This program, "bzip2", the associated library "libbzip2", and all

rights reserved.

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions

are met:

1. Redistributions of source code must retain the above copyright

notice, this list of conditions and the following disclaimer.

2. The origin of this software must not be misrepresented; you must

not claim that you wrote the original software. If you use this

software in a product, an acknowledgment in the product

documentation would be appreciated but is not required.

3. Altered source versions must be plainly marked as such, and must

not be misrepresented as being the original software.

4. The name of the author may not be used to endorse or promote

products derived from this software without specific prior written

permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS

OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY

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

DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,

WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Julian Seward, jseward@bzip.org

bzip2/libbzip2 version 1.0.6 of 6 September 2010

harfbuzz:

HarfBuzz is licensed under the so-called "Old MIT" license. Details follow.

For full copyright notices consult the individual files in the package.

Permission is hereby granted, without written agreement and without

license or royalty fees, to use, copy, modify, and distribute this

software and its documentation for any purpose, provided that the

above copyright notice and the following two paragraphs appear in

all copies of this software.

IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR

DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES

ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN

IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH

DAMAGE.

THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,

BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS

ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO

PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

freetype:

The FreeType 2 font engine is copyrighted work and cannot be used

legally without a software license. In order to make this project

usable to a vast majority of developers, we distribute it under two

mutually exclusive open-source licenses.

This means that *you* must choose *one* of the two licenses described

below, then obey all its terms and conditions when using FreeType 2 in

any of your projects or products.

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- The FreeType License, found in the file `FTL.TXT', which is similar

to the original BSD license *with* an advertising clause that forces

you to explicitly cite the FreeType project in your product's

documentation. All details are in the license file. This license

is suited to products which don't use the GNU General Public

License.

Note that this license is compatible to the GNU General Public

License version 3, but not version 2.

- The GNU General Public License version 2, found in `GPLv2.TXT' (any

later version can be used also), for programs which already use the

GPL. Note that the FTL is incompatible with GPLv2 due to its

advertisement clause.

The contributed BDF and PCF drivers come with a license similar to that

of the X Window System. It is compatible to the above two licenses (see

file src/bdf/README and src/pcf/README).

The gzip module uses the zlib license (see src/gzip/zlib.h) which too is

compatible to the above two licenses.

The MD5 checksum support (only used for debugging in development builds)

is in the public domain.

udev:

This program is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program. If not, see <http://www.gnu.org/licenses/>.

dbus:

D-Bus is licensed to you under your choice of the Academic Free

License version 2.1, or the GNU General Public License version 2

(or, at your option any later version).

icu:

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

ICU License - ICU 1.8.1 and later

others

Permission is hereby granted, free of charge, to any person obtaining a copy

of this software and associated documentation files (the "Software"), to

deal in the Software without restriction, including without limitation the

rights to use, copy, modify, merge, publish, distribute, and/or sell copies

of the Software, and to permit persons to whom the Software is furnished to

do so, provided that the above copyright notice(s) and this permission

notice appear in all copies of the Software and that both the above

documentation.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.

IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE

LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR

ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER

IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT

OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

Except as contained in this notice, the name of a copyright holder shall not

be used in advertising or otherwise to promote the sale, use or other

dealings in this Software without prior written authorization of the

Unicode:

Distributed under the Terms of Use in

http://www.unicode.org/copyright.html.

Permission is hereby granted, free of charge, to any person obtaining

a copy of the Unicode data files and any associated documentation

(the "Data Files") or Unicode software and any associated documentation

(the "Software") to deal in the Data Files or Software

without restriction, including without limitation the rights to use,

copy, modify, merge, publish, distribute, and/or sell copies of

the Data Files or Software, and to permit persons to whom the Data Files

or Software are furnished to do so, provided that

(a) this copyright and permission notice appear with all copies

of the Data Files or Software,

(b) this copyright and permission notice appear in associated

documentation, and

as well as in the documentation associated with the Data File(s) or

Software that the data or software has been modified.

THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF

ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

NONINFRINGEMENT OF THIRD PARTY RIGHTS.

IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS

NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL

DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

PERFORMANCE OF THE DATA FILES OR SOFTWARE.

Except as contained in this notice, the name of a copyright holder

shall not be used in advertising or otherwise to promote the sale,

use or other dealings in these Data Files or Software without prior

written authorization of the copyright holder.

UPX:

redistribute and/or modify it under certain conditions.

This program is distributed in the hope that it will be useful, but WITHOUT

ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

FITNESS FOR A PARTICULAR PURPOSE. See the UPX License Agreement for more

details: http://upx.sourceforge.net/upx-license.html

OpenSSL:

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions

are met:

1. Redistributions of source code must retain the above copyright

notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright

notice, this list of conditions and the following disclaimer in

the documentation and/or other materials provided with the

distribution.

3. All advertising materials mentioning features or use of this

software must display the following acknowledgment:

'This product includes software developed by the OpenSSL Project

for use in the OpenSSL Toolkit. (http://www.openssl.org/)'

4. The names 'OpenSSL Toolkit' and 'OpenSSL Project' must not be used to

endorse or promote products derived from this software without

prior written permission. For written permission, please contact

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

openssl-core@openssl.org.

5. Products derived from this software may not be called 'OpenSSL'

nor may 'OpenSSL' appear in their names without prior written

permission of the OpenSSL Project.

6. Redistributions of any form whatsoever must retain the following

acknowledgment:

'This product includes software developed by the OpenSSL Project

for use in the OpenSSL Toolkit (http://www.openssl.org/)'

THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR

ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

SPECIAL, EXEMPLARY, OR").append(" CONSEQUENTIAL DAMAGES (INCLUDING, BUT

NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

OF THE POSSIBILITY OF SUCH DAMAGE.

====================================================================

This product includes cryptographic software written by Eric Young

(eay@cryptsoft.com). This product includes software written by Tim

Hudson (tjh@cryptsoft.com).

Original SSLeay License

-----------------------

This package is an SSL implementation written

by Eric Young (eay@cryptsoft.com).

The implementation was written so as to conform with Netscapes SSL.

This library is free for commercial and non-commercial use as long as

the following conditions are aheared to. The following conditions

apply to all code found in this distribution, be it the RC4, RSA,

lhash, DES, etc., code; not just the SSL code. The SSL documentation

included with this distribution is covered by the same copyright terms

except that the holder is Tim Hudson (tjh@cryptsoft.com).

the code are not to be removed.

If this package is used in a product, Eric Young should be given attribution

as the author of the parts of the library used.

This can be in the form of a textual message at program startup or

in documentation (online or textual) provided with the package.

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

are met:

1. Redistributions of source code must retain the copyright

notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright

notice, this list of conditions and the following disclaimer in the

documentation and/or other materials provided with the distribution.

3. All advertising materials mentioning features or use of this software

must display the following acknowledgement:

'This product includes cryptographic software written by

Eric Young (eay@cryptsoft.com)'

The word 'cryptographic' can be left out if the rouines from the library

being used are not cryptographic related :-).

4. If you include any Windows specific code (or a derivative thereof) from

the apps directory (application code) you must include an

acknowledgement:

'This product includes software written by Tim Hudson

(tjh@cryptsoft.com)'

THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND

ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

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

DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

SUCH DAMAGE.

The licence and distribution terms for any publically available version or

derivative of this code cannot be changed. i.e. this code cannot simply be

copied and put under another distribution licence

[including the GNU Public Licence.]");

14 ADDITIONAL DOCUMENTATION

Laird offers a variety of documentation and ancillary information to support our customers through, additional

documentation can be accessed from the Documentation tab of all product pages which can be found on the Laird

Bluetooth Modules Product Page.

For any additional questions or queries, or to receive technical support for this VSP application, please contact Embedded

Wireless Solutions Support: http://ews-support.lairdtech.com

Laird OTV VSP Application

User Guide

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/bluetooth

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

specifications are subject to change without notice. Responsibility for the use and application of Laird materials or products rests with the end user since

Laird and its agents cannot be aware of all potential uses. Laird makes no warranties as to non-infringement nor as to the fitness, merchantability, or

sustainability of any Laird materials or products for any specific or general uses. Laird, Laird Technologies, Inc., or any of its affiliates or agents shall not be

liable for incidental or consequential damages of any kind. All Laird products are sold pursuant to the Laird Terms and Conditions of Sale in effect from

time to time, a copy of which will be furnished upon request. When used as a tradename herein, Laird means Laird PLC or one or more subsidiaries of Laird

PLC. Laird™, Laird Technologies™, corresponding logos, and other marks are trademarks or registered trademarks of Laird. Other marks may be the

property of third parties. Nothing herein provides a license under any Laird or any third party intellectual property right.

CS GUIDE OTA VSP

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