Trying to decipher USB heartbeat vs actual data

Thread Starter


Joined Mar 3, 2016
Hey I am trying to figure out a way to be able to read a signal from a USB, and decipher whether or not that signal is actual data, or just the USB heartbeat signal, which simply means the USB is still on. I am thinking I would need to use a PLD, or FPGA. Any references to websites or personal knowledge would be greatly appreciated.