TM4C123GE6PM: USB connection adds DC offset to ADC in Tiva part - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums
![connector - Why is the usb shield always tied to ground (GND pin)? - Electrical Engineering Stack Exchange connector - Why is the usb shield always tied to ground (GND pin)? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/tmOav.png)
connector - Why is the usb shield always tied to ground (GND pin)? - Electrical Engineering Stack Exchange
![Is the GND-pin of an USB-port connected directly to common ground? - Electrical Engineering Stack Exchange Is the GND-pin of an USB-port connected directly to common ground? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/skjGe.jpg)