How To Create a .dfu file

To manually flash firmware using ST DFUSE tools, get a copy of ST DFUSE tools.

• Install the DFUSE tools
• Download the devices firmware update .zip file
• Repeat step 1 above

Step one

• Locate the devices Device_BlockStorage.c file.
  • E.g. the Netduino 3 file is located here.
• Find the BlockRegionInfo segment Start address and bytes per block.

Example:

const BlockRegionInfo BlockRegions[] =

{
    {
        0x08000000,                         // start address for block region
        4,                                  // total number of blocks in this region
        0x4000,                             // total number of bytes per block
        ARRAYSIZE_CONST_EXPR(BlockRange1),
        BlockRange1,
    },
}

• Start the STDFU File Manager and select the "I want to generate a .dfu file ...." radio button.
• Select the "Muti BIN" button and select the nanoBooter.bin file from the firmware update .zip file. Enter the Start address from above into the "Address" textbox. Example: 8000000.
• Press the "Add to List" button.
• Next select the nanoCLR.bin file. Enter the Start address + bytes per block into the "Address" textbox. Example: 804000.
• Press the "Add to List" button.
• Press the "Generate" button.

Step two

• Start the DFUSE Demo Application.
• Locate the .dfu file generated above.
• Click the "Choose" button then the "Update" button.
• Toggle the devices power.
• That's all, we are done!