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 6 of 66
6.4.2.
Drive from "interface down" to "interface up" State ..................................................... 43
6.5.
Example of UICP Usage ........................................................................................ 44
6.5.1.
State Change from "interface up" to "interface down" ................................................ 44
6.5.2.
State Change from "interface down" to "interface up" ................................................ 45
7.
NFC Handover ............................................................................................................. 46
7.1.
NFC Mode .............................................................................................................. 46
7.2.
NFC Handover Example ........................................................................................ 46
8.
Firmware Upgrade ...................................................................................................... 48
8.1.
Serial Firmware Upgrade ....................................................................................... 48
8.1.1.
Prerequisites for Serial Firmware Upgrade ................................................................ 48
8.1.2.
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 Mode ...................................................................................................... 57
9.1.
Using System OFF Mode for Terminal I/O ............................................................. 57
10.
LE Connection Parameters ..................................................................................... 59
10.1.
Create a Bluetooth Low Energy Connection ....................................................... 59
10.2.
Optimize the Connection Interval from Slave by using the Slave Latency .......... 60
10.3.
Identify the Required Connection Interval ........................................................... 61
10.4.
Update the Connection Parameters .................................................................... 62
10.5.
Connection Examples of Different Use Cases .................................................... 62
10.5.1.
Central Side Initiates a GATT Connection .............................................................. 63
10.5.2.
Central Side Changed Initial Connection Parameter ............................................... 64
10.5.3.
Peripheral Side Create a Connection Parameter Update Request ......................... 65
11.
Document History ................................................................................................... 66
