STEVAL-MKI103V1 STMicroelectronics, STEVAL-MKI103V1 Datasheet - Page 27

• Manufacturer Part Number: STEVAL-MKI103V1
• Description: Acceleration Sensor Development Tools LPY410AL Dual Axis Low Pwr 100dps BRD
• Manufacturer: STMicroelectronics

Specifications of STEVAL-MKI103V1

• Sensing Axis: Double Axis
• Output Type: Digital
• Interface Type: USB
• For Use With/related Products: LPR5xxxAL, LPY5xxxAL, LY5xxxAL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

UM0796
8
8.1
8.2
DFU
The MEMS DFU (device firmware update) GUI is a graphical interface that allows the user
to download and replace the firmware of a MEMS demonstration board, directly from a PC,
through the USB port.
MEMS demonstration boards that mount an ST72651AR6 microcontroller can reprogram an
application via USB, in accordance with the DFU class specification defined by the USB
Implementers Forum (USB-IF). This capability is useful because it allows the
reprogramming of the microcontroller directly in the field and is particularly well-suited for
USB applications where the same USB connector can be used both for standard operating
mode and for the reprogramming process.
Connector J4 must be shorted to allow the DFU procedure. If the demonstration kit is to be
reprogrammed through the ICP (in-circuit programming) connector and the ST7 dedicated
tools, J4 must be open.
PC requirements
In order to use the device firmware upgrade (DFU) software with the Windows operating
system, a recent version of Windows (such as Windows 98, Windows 98SE, Windows
Millennium, Windows 2000 or Windows XP) must be installed on the PC.
DFU procedure
Run the DFU.exe file. To enter the firmware update mode the user must plug the USB cable
into the demonstration kit while pressing the sw2 button on the board
Figure 18
Figure 18. Demonstration kit correctly recognized
The DFU driver must be installed before using this feature. The driver can be found in
“firmwareupdate.zip” in the driver installation folder of the demonstration kit.
shows the window displayed when the board has been properly detected.
Doc ID 16227 Rev 1
(Figure
3, ref 12).
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DFU