I enable the 80MHz clock and configure the USB PINs hardware in Processorexpert in SDS32 IDE.
For USB intialization, I set the RST bit to be 1 in regisetr USBCMD trying to reset the USB module. But no matter how long time is passed, the reset process couldn't be successfully finished(the RSET bit in USBCMD couldn't change from 1 to 0). Can anybody give me some advice to resolve this issue? I am debugg usb feature in DEVkit MPC5748G demo EVB board.