We want to connect a USB-A to TM4C123GH6PM. Normally, if it was a micro USB, there are two extra pins are connected to MCU: USB0ID and USB0VBUS. The USB library of Tiva also used these pins. But they're not included in USB-A or USB-B, there are only D- and D+ with power pins. So we tricked the Tiva with connected these pins to VBUS and GND, as inspired from Tiva DK's schematic. What do you recommend about using USB-A with TM4C123GH6PM for a reliable connection? There is our schematic: