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MPC5748G USB Command Reset Issue

Question asked by yang lei on Feb 8, 2018
Latest reply on Jul 9, 2019 by Jakob Genssler


         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.