Firmware; Device Firmware Upgrade; Figure 14. Dfu Graphic User Interface - ST EVALCOMMBOARD Manual

Firmware

10 Firmware
The ST Industrial Communication Board FirmWare provides two main functions:
1. Upgrading the on-board firware stored in the Flash memory
2. Providing application-specific code that enables communication with different
application boards
10.1

Device firmware upgrade

The DFU (Device Firmware Upgrade) feature enables the user to upgrade the application-
specific firmware on the Industrial Communication Board through the PC USB port.
The DFU procedure is performed, on the PC side, by a DFU application. The application
lists all the connected DFU devices. Once selected, the DFU USB device to be upgraded
and loaded (through the command File→ Open) using a DFU firmware image, the device can
be upgraded by pressing the Upgrade button.

Figure 14. DFU graphic user interface

In normal operation mode, the Industrial Communication Board is not DFU capable. In order
to enable the DFU capability of the device, the following two procedures are available:
● Hardware DFU Mode setting: Press and release the RES button on the Industrial
Communication Board while holding the SW1 switch down.
●
Software DFU Mode Setting: Send a SetDFUMode command using the application-
specific software. (See the application specific software description to check the
availability of this command).
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