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Telit Wireless Solutions BlueMod plus S42/Central, Software User'S Manual

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Telit Wireless Solutions BlueMod plus S42/Central Software User'S Manual Download Page 65

 
 

 

 

S42/Central Software User Guide 

1VV0301318 Rev. 3 

– 2018-08-31

 

 

Reproduction forbidden without written authorization from Telit Communications S.p.A.- All Rights Reserved. 

 

Page 65 of 66 

 

10.5.3. 

Peripheral Side Create a Connection Parameter Update 
Request 

 

 

 

Summary of Contents for BlueMod plus S42/Central

Page 1: ...e User Guide 1VV0301318 Rev 3 2018 08 31 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 1 of 66 BlueMod S42 Central Software User Guide 1...

Page 2: ...al Software User Guide 1VV0301318 Rev 3 2018 08 31 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 2 of 66 APPLICABILITY TABLE PRODUCT Blu...

Page 3: ...reserve for Telit and its licensors certain exclusive rights for copyrighted material including the exclusive right to copy reproduce in any form distribute and make derivative works of the copyrighte...

Page 4: ...of fitness for such High Risk Activities Trademarks TELIT and the Stylized T Logo are registered in Trademark Office All other product or service names are the property of their respective owners Thi...

Page 5: ...as Terminal I O Server 18 3 1 3 Multiple GATT Connections 21 3 2 MUX Mode 23 3 2 1 Central Role as GATT Client 23 4 Startup Timing 32 4 1 Firmware Version 3 002 32 5 Security 33 5 1 Pairable and Bond...

Page 6: ...Telit IoT Updater 48 8 1 3 Firmware Update Protocol on the Host System 50 8 2 Firmware Update over The Air OTA 53 8 2 1 Firmware Update Over The Air using Nordic nRF Toolbox on Android 54 9 System OFF...

Page 7: ...on Support For general contact technical support to report documentation errors and to order manuals contact Telit Technical Support Center TTSC at TS SRD telit com Alternatively use https www telit c...

Page 8: ...arning Alerts the user to important points about integrating the module if these points are not followed the module and end user equipment may fail or malfunction Tip or Information Provides advice an...

Page 9: ...heral BlueMod S42 Central firmware includes the following feature set Handling for 4 parallel links 3 in central role and 1 in peripheral role Generic GATT client support in central role Terminal I O...

Page 10: ...ditional central connection Therefore it is not possible to use the ATD command for connection establishment during a Terminal I O connection To use peripheral and central connections in parallel the...

Page 11: ...t2 RSSI 62 TYPE CONN NAME BM SR 7 MNF 8F0009B0011000 UUID 53544D544552494F5345525631303030 UUID FEFB F1B9EB41D81E t3 RSSI 57 TYPE CONN NAME TESTDEVICE UUID FF00 008025001162 t2 RSSI 68 TYPE CONN NAME...

Page 12: ...erent for each connection The given connection handle is required for further activities onto this peripheral device 3 1 1 3 Discovering Services and Characteristics After the GATT connection was esta...

Page 13: ...0x3E UUID 0000FF0D000010008000008025000000 OK The BlueMod S42 Central reports a list of GATT characteristics of the requested GATT service UUID FF00 from the peripheral device This list of characteris...

Page 14: ...GATT characteristic This information is listed in the service specification of the addressed service In the example the data size is defined to two bytes To write two data bytes 0xaa and 0xbb to the...

Page 15: ...was successful The LEREAD 0x10 0x0011 AABB message reports the read data of the requested connection handle 0x10 and characteristic handle 0x0011 The data is formatted as a hexadecimal stream AABB tha...

Page 16: ...istic generates a new LENOTI event until the notifications to this characteristic are switched off 3 1 1 6 2 Disable Notifications AT LECCCD 0x10 0x0011 0 OK The result message OK reports that deactiv...

Page 17: ...c handle was successful 3 1 1 6 5 Close Connection When the connection is not needed anymore it could be disconnected To close a GATT connection to a peripheral device the host controller needs to use...

Page 18: ...minal I O client implementation for iOS and Android To establish a Bluetooth Low Energy connection from a smartphone to the BlueMod S42 Central the Terminal IO Utility app from Telit needs to be insta...

Page 19: ...ction with the result message RING The established Terminal I O connection is reported with the message CONNECT including the connection type TIO and a connection handle 0x01 The given connection hand...

Page 20: ...tions By using the GPIO HANGUP only available if this GPIO is controlled by the host controller Send the ATH command Using the GPIO HANGUP set GPIO HANGUP to high level set GPIO HANGUP to low level NO...

Page 21: ...heral devices 3 1 3 1 Searching for Available Peripheral Devices Scan for available devices AT LESCAN GATT D0A4E9658F65 t3 RSSI 60 TYPE CONN NAME BM S 8F65 MNF 8F0009B0011000 UUID FEFB DE338F0D1A22 t3...

Page 22: ...GATT connection to a peripheral device ATDDE338F0D1A22 t3 GATT CONNECT GATT 0x11 The BlueMod S42 Central reports the created GATT connection with the result message CONNECT include the connection typ...

Page 23: ...lexing protocol Data has to be sent and are received in the following framing all values in hexadecimal format Name Description Length Value Start Start of frame 8 bit CC Data Channel ID Channel ident...

Page 24: ...Mod S42 Central device Note The following example in the MUX mode is listing the serial data in hexadecimal coded form to identify the MUX framing For a better understanding the corresponding text mes...

Page 25: ...4c 45 53 52 56 44 3d 30 78 31 30 0d AT LESRVD 0x10 cc ff 02 0d 0a cc ff 05 55 55 49 44 3a cc ff 04 31 38 30 30 cc ff 02 0d 0a cc ff 05 55 55 49 44 3a cc ff 04 31 38 30 31 cc ff 02 0d 0a cc ff 05 55 5...

Page 26: ...30 30 30 38 30 30 30 30 30 38 30 32 35 30 30 30 30 30 30 cc ff 02 0d 0a cc ff 08 20 20 30 78 30 30 31 36 cc ff 0b 20 50 52 4f 50 3a 30 78 30 38 20 cc ff 05 55 55 49 44 3a cc ff 20 30 30 30 30 30 30 3...

Page 27: ...erties PROP 0x20 characteristic UUID UUID 00000004000010008000008025000000 The characteristic handle is required for all access functions to use with this characteristic The characteristic properties...

Page 28: ...s peripheral device in addition to the write type As result of the AT LEADDCHAN command the BlueMod S42 Central returns the MUX channel ID include the response message OK The reported MUX channel ID v...

Page 29: ...local host and the GATT server characteristic during this active connection The following example demonstrates the data exchange between both given MUX channels of the service UUID FEFB GATT Server re...

Page 30: ...connection handle 0x01 The given connection handle is required for further activities onto this Terminal I O connection 3 2 1 8 Exchange Data on the Terminal I O Connection During the active Terminal...

Page 31: ...inal I O connection i e from a mobile phone the BlueMod S42 Central close the connection with the use of the connection handle cc ff 09 41 54 48 3d 30 78 30 31 0d ATH 0x01 cc ff 0c 0d 0a 4e 4f 20 43 4...

Page 32: ...please refer to the document UICP UART Interface Control Protocol 4 1 Firmware Version 3 002 The following diagram shows the startup timing of the BlueMod S42 Central based on firmware version 3 002...

Page 33: ...is affected by the following commands AT BNDLIST shows the devices stored in the bonded device list AT BNDSIZE determines the size of the bonded device list and deletes the whole list when modifying t...

Page 34: ...ults are the same as for a display only configuration 5 3 Security Levels for Terminal I O The behavior of LE Security is configurable using the parameters for I O capabilities AT BIOCAP and a man in...

Page 35: ...n the first case the display is used to show a six digit numeric code to the user who then enters the code on the keypad In the second case the user of each device enters the same six digit numeric co...

Page 36: ...BT addr tx 1 Keyboard only AT BIOCAP 2 Passkey entry responder displays initiator inputs MITM protection SSPPIN BT addr tx AT BSSPPIN BT addr tx passkey Passkey entry responder displays initiator inpu...

Page 37: ...the BlueMod S42 Central see also the connection example in chapter 3 1 2 The Target Application part will simulate the device at the end DTE which communicates to the BlueMod S42 Central with configur...

Page 38: ...al Software User Guide 1VV0301318 Rev 3 2018 08 31 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 38 of 66 5 4 Connection Example Termina...

Page 39: ...ide 1VV0301318 Rev 3 2018 08 31 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 39 of 66 5 5 Connection Example Terminal I O Passkey Entry...

Page 40: ...ving support of the involved peers but implements mechanisms to allow the save usage of MCU power saving features like UART peripheral switched off 6 2 Requirements of Using UICP on BlueMod S42 Centra...

Page 41: ...active IUC IN inactive I U R O U T a s s e r t e d I U C I N a s s e r t e d interface up IUR OUT active IUC IN don t care UART flowcontrol interface up normal operation RTS CTS hardware flow control...

Page 42: ...that signal by de asserting its IUC OUT signal which is connected to the IUC IN signal of the initiator After the initiator detects a de asserted IUC IN signal both devices go into interface down stat...

Page 43: ...signal which is connected to the IUC IN signal of the initiator Once the acceptor detects the assert of the IUR OUT signal from the initiator it can disable MCU power saving mechanisms but shall ensur...

Page 44: ...BlueMod S42 Central the BlueMod S42 Central has send all data as well and is idle for t1 in its Tx direction so it signals the host that it is allowed to go to interface down state by de asserting IU...

Page 45: ...r a maximum time t2 to detect the assertion via the IUC IN signal After receiving this input change of IUC IN both devices may assume that the interface of the remote device changed from state pending...

Page 46: ...lue Description 0 NFC interface OFF 1 NFC interface ON Enable the NFC Handover functionality by using the following AT command 7 2 NFC Handover Example Make sure NFC is available and enabled in the sm...

Page 47: ...ten authorization from Telit Communications S p A All Rights Reserved Page 47 of 66 After the pairing request ended successfully you will find the new paired device within the Bluetooth settings of yo...

Page 48: ...ial lines UART RXD UART TXD UART CTS UART RTS and GND Serial firmware update requires a UART speed of 38400 bps Pin BOOT0 E 1 shall be pulled high to access the bootloader at start up 8 1 2 Telit IoT...

Page 49: ...fore starting the update by pressing the Update button the device shall be reset COM Port The COM Port the device is attached to Update Starts the update procedure After the successful update close th...

Page 50: ...te The actual size of each firmware binary file can be found in the firmware release notes 8 1 3 1 Layer Structure The device firmware update uses the HCI Three Wire UART Transport Layer specified in...

Page 51: ...nit packet provided by Telit The data starting with Device type and ending with CRC of the image that will be transferred see the Nordic documentation is provided by Telit in the Telit delivery packag...

Page 52: ...Packet bit a Packet Type of 4 bits a Payload Length of 12 bits and a 8 bit Header Checksum The used Packet Type is vendor specific 0xe LSB MSB 4 Octets 1 156 Octets 2 Octets Packet Header DFU packet l...

Page 53: ...using the Nordic Master Control Panel and the corresponding Nordic Bluetooth hardware The firmware over the air update in the BlueMod S42 Central will be enabled with the commands below 1 AT DFUMODE...

Page 54: ...ion from Telit Communications S p A All Rights Reserved Page 54 of 66 8 2 1 Firmware Update Over The Air using Nordic nRF Toolbox on Android Make sure the BlueMod S42 Central has already activated the...

Page 55: ...thout written authorization from Telit Communications S p A All Rights Reserved Page 55 of 66 Select file type Distribution packet ZIP Search via file manager for the firmware package which was previo...

Page 56: ...munications S p A All Rights Reserved Page 56 of 66 Press the button SELECT DEVICE and select the BM S_DFU from the list of available devices Press the UPLOAD button to upload the firmware package ove...

Page 57: ...arameter It is also possible to monitor the UART flow control line UART RTS 9 1 Using System OFF Mode for Terminal I O The following example will list the communication between the host controller and...

Page 58: ...BlueMod S42 Central Software User Guide 1VV0301318 Rev 3 2018 08 31 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 58 of 66...

Page 59: ...rom one another on a specific channel then meet at a new channel the link layer of the BLE stack handles the channel switching at a specific amount of time later This meeting where the two devices sen...

Page 60: ...cy value 1 x 2 x Connection interval time x 2 Limitations of calculated Connection supervision timeout calculated value 10ms minimum value 100ms maximum value 32s 10 2 Optimize the Connection Interval...

Page 61: ...onnection interval when selecting the connection parameters Selecting the correct group of connection parameters plays an important role in power optimization of the BLE device The following list give...

Page 62: ...accepting or rejecting the new parameters The BlueMod S42 Central uses the configuration command AT LECONPARAM to initiate the Connection Parameter Update Request message or report the current connec...

Page 63: ...al Software User Guide 1VV0301318 Rev 3 2018 08 31 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 63 of 66 10 5 1 Central Side Initiates...

Page 64: ...ftware User Guide 1VV0301318 Rev 3 2018 08 31 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 64 of 66 10 5 2 Central Side Changed Initial...

Page 65: ...e User Guide 1VV0301318 Rev 3 2018 08 31 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 65 of 66 10 5 3 Peripheral Side Create a Connecti...

Page 66: ...t issue r1 2016 10 05 Added new values 3 4 of AT LETIO command Added new chapter LE Secure Connections Corrected value of AT BIOCAP in connection example Terminal I O Passkey entry r2 2018 02 02 Repla...

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