3rd party board [Tools -> Burn Bootloader] fail

[Cheong2K]

Hi there,

I am making a new board, in boards.txt I added:
my_board.bootloader.tool=dfu

In platform.txt I added:
tools.dfu.erase.params.verbose=-v
tools.dfu.erase.params.quiet=-q -q
tools.dfu.erase.pattern="tool-erase"

tools.dfu.bootloader.params.verbose=-v
tools.dfu.bootloader.params.quiet=-q -q
tools.dfu.bootloader.pattern="tool-prog"

When I click, Tools -> Burn Bootloader, the following error will be shown:
java.lang.NullPointerException
at cc.arduino.packages.uploaders.SerialUploader.burnBootloader(SerialUploader.java:314)
at processing.app.Editor.lambda$handleBurnBootloader$42(Editor.java:2754)
at java.lang.Thread.run(Thread.java:745)
Error while burning bootloader.

[Cheong2K]

My board is in:
/Users/Cheong2K/Library/Arduino15/packages/my_company

However, if I move it to the arduino folder, it works just fine:
/Users/Cheong2K/Library/Arduino15/packages/arduino

[sandeepmistry]

@Cheong2K a few suggestions:

Have you tried to add a programmer to programmers.txt? (this is based off the SAMD programmers.txt)

my_company_dfu.name=DFU tool name
my_company_dfu.name.communication=USB
my_company_dfu.name.protocol=
my_company_dfu.name.program.protocol=
my_company_dfu.program.tool=dfu
my_company_dfu.program.extra_params=

Is your tool in ~/Library/Arduino15/packages/my_company/tools/dfu? I suggest adding a path like the SAMD core:

tools.dfu.path={runtime.tools.dfu.path}

[Cheong2K]

@sandeepmistry,

It works just fine, thank you!!