6 years, 9 months ago.

DAPLINK INTERFACE (INTERFACE-MK20DX128VFM5) question

The INTERFACE-MK20DX128VFM5 schematic implements a design that runs of USB power. For my implementation the programmer will be powered from an external supply. The FRDM-KL03Z has an extra input on pin 32 that detects when USB has been connected (INTERFACE-MK20DX128VFM5 schematic). I've pulled the DAPLINK source code and it's a little daunting to see if the firmware has support for plugging a USB cable into an already powered programmer, I don't even know where to start looking in the source.

So, will it still function correctly if the interface is powered before USB is connected?

Also, is there a document that can help me navigate the source?

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