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galpavlin / BESC-G2

BESC second generation
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Issue connecting with USB #4

Open nuxy69 opened 1 year ago

nuxy69 commented 1 year ago

Hi,

After building the V1.1, I can flash it fine with the ST-LINK V2. However I can't seem to get it connected to USB. Windows always gives "USB Device Not Recognized". No matter what firmware I flash. I tried the one downloaded from http://pavlin.si/besc/besc-g2/. I tried the BL only, I tried compiling the VESC FW for this esc. None of them seem to work.

I know there is no VBUS detection enabled. But so isn't on the original VESC either.

Any advice would be greatly appreciated. As for now it's a expensive hunk of capacitors :(

nuxy69 commented 1 year ago

Some more information about the issue stated above. I tested the crystal with an oscilloscope. There is no oscillation generated. I tried replacing the crystal with a new one, turning it around. And also adding some capacitance to the load capacitors. Nothing seems to start up the crystal. I quadruple checked all the soldering and that's all good.

Any help is appreciated!