why bmc64 has a power supply via the barrel connector?

randyrossi / bmc64

A bare metal Commodore 64 emulator for the Raspberry Pi with true 50hz/60hz smooth scrolling, low input latency and better audio/video sync.

GNU General Public License v3.0

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Open lplaza212 opened 3 years ago

lplaza212 commented 3 years ago

because of usb's low current efficiency?

randyrossi commented 3 years ago

I think it could have been usb. You can swap out the barrel connector by forking the upverter design if you want.