u/ParamedicStriking487

What I'm facing is that i uploaded code for Bluetooth application(ble broadcast), but I also want to use usb, note that I haven't initialized my usb peripheral yet.

See that It is custom board, whenever i use like external power supply to program my board using swd it works, bluetooth broadcast works but when i connect my usb cable my ic stops.

I disconnected data lines only put power line then also it didn't work.

But when i disconnect my connection to vbus pin only then my board works perfectly from power of usb cable and bluetooth broadcast is working.

What is the issue, why my board stops working when i supply 5v to vbus pin.

Can anyone tell please.

I'm here pulling my hair to try to solve it