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 48 of 66
8.
Firmware Upgrade
The firmware upgrade will be done locally by either
•
A Telit provided firmware update tool. This is a Windows™ program that contains the
firmware and uses a PC with a serial port for the update
•
Implementing the firmware update protocol on the host system or over the air.
8.1.
Serial Firmware Upgrade
8.1.1.
Prerequisites for Serial Firmware Upgrade
You need to have access to the UART interface of the S42/Central.
Serial firmware update requires at least the serial 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 Updater
The firmware upgrade will be done by a Telit provided firmware update tool. This is a
Windows™ program that contains the firmware and uses a PC with a serial port for the update.
For example a firmware version V3.002 will result in the executable file
“BM+S42_v3_002_FWupdate.exe”.
The software used for the upgrade is able to run on the following Win32/Win64 platforms:
•
Windows XP
•
Windows Vista
•
Windows 7
•
Windows 8
•
Windows 10
Note: Testing was carried out on Windows 10 Pro, Windows 8 Pro, Windows 7
Ultimate and XP Professional platforms; however experience suggests that the
described software runs on all XP platforms and all Windows 10 / 8 / 7 / Vista
32 and 64-bit platforms.