Hello, I'm making a testing board using the MC9S08JM32 for USB applications but I'm not sure i understand the power situation, according to the datasheet the USB-B connector should be routed like so:
However I've connected it like this:
In this design the VCC bar is either 3.3V or 5V depending on what source i connect to the board's power terminals.
P4 is a 3-pin strip intended to use a jumper between pins 1&2 or 2&3
The Vusb bar is connected to the MCU's VUSB33 pin.
This is an error right?
I'm not sure I understand what Vbus or what is supposed to connect to, does it come from the Host(PC)?
PLease check
Internally the USBDP is tied to VUSB33 through a pull up
I hope this will help you
Regards
