【Storage】When I connect a USB device to the EMPU‑3201/3401, it isn’t recognized. What troubleshooting steps can I take?

USB device connecting to EMPU-3201/3401 cannot be recognized. First thing need to be confirmed is the power consumption of the USB device, EMPU-3201/3401 can supply port1 and port2 200mA by default, if devices need current over 200mA, you need to give a external power on EMPU module.