Recognizing CDP, DCP, and SDP port types with FX2LP | Cypress Semiconductor
Recognizing CDP, DCP, and SDP port types with FX2LP
I'm trying to add the ability to detect the host port type (Charging Downstream Port (CDP), Dedicated Charging Port (DCP), or Standard Downstream Port (SDP)) connected to an FX2LP device in an existing design. I need to determine how much power the host can source before attempting to connect a high-current (2A) battery charger. Has anyone done this using the FX2LP? I've searched the application notes, but the closest I've found deals with a different part.
Any help would be appreciated. :-)