argument.
If everything works well and the calculator was connected before launching dm_tool, then the
message at the right side of [Program] button should show device number. If it shows "No DFU
capable devices found (Click to refresh)" try to click at the message and it should display the ID of
connected device after refresh and
Memory layout:
Ê 0x8000000-0x80fffff: size 1024kB = 512*2kB pages
in the text area.
If the message "No DFU capable devices found" still remains there something is wrong with libusb
driver installation or connection to the calculator or the calculator isn’t in bootloader mode.
Finally press the [Program] button to flash new firmware.
FW Update Using dfu-util
You can check user rights configuration for Linux first.
Switch the calculator to bootloader mode
From menu or by RESET+PGM buttons (see Bootloader mode activation).
Connect the calculator to the PC
You can list information about connected DFU device using dfu-util -l
then start flashing using
dfu-util -D DM42_flash.bin -a "@Internal Flash /0x08000000/512*0002Kg" -s 0x8000000
If you have connected more devices with DFU interface or if dfu-util isn’t able to detect the device,
you can specify the USB device ID on command line using -d option:
dfu-util -D DM42_flash.bin -d 0483:df11 -a "@Internal Flash /0x08000000/512*0002Kg"
-s 0x8000000
Please, be patient, it takes some time.
Press RESET button after dfu-util finishes the flashing.
Example output of dfu-util
20
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