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6.19.4
Energy meter firmware update
The energy meter firmware can be upgraded with the following procedure:
1.
Get the PowerShield firmware binary file on www.st.com: firmware binary file has the extension .dfu standing
for device firmware upgrade (DFU).
2.
Download and install the USB-DFU driver and utility: software reference: STSW-STM320803.
3.
Set the board in bootloader mode: Set switch SW2 to BOOT mode.
4.
Download the .dfu file with USB-DFU utility software. Connect the energy meter part with CN16 via a USB
cable, and launch USB-DFU utility software. Only two buttons to use:
–
Choose: Load the .dfu file
–
Upgrade: Upgrade into flash memory
5.
Set the board in application mode (SW2 on the left to APPLI). Reset the board by pressing the RESET
button or unplug and plug the USB cable.
UM2617 - Rev 7
Figure 27.
Energy metering firmware update hardware
UM2617
MCU energy meter tools
USB_PM (bottom
side)
(CN16)
On BOOT mode
(switch on the right)
(SW2)
page 45/64
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