1 Reply Latest reply on Oct 23, 2020 9:24 PM by SananyaM_56

    [CY4500] How to determine the packet direction?


      I see that Protocol Analyzer Utility shows the list of the packets.


      I have the Notebook connected to Android phone using USB-C cable with CY4500 in between, how do I know if the given packet was sent by the phone or by the notebook?

        • 1. Re: [CY4500] How to determine the packet direction?



          Please refer to the attached screenshot from the utility, the data and port role in the initial packets can be checked to understand which port partner is sending them. You can also find the same information in the header under the packet details.


          Please let me know if you are not sure whether the notebook or phone is the DFP, source? You could refer to the VDM packets if they are present in the logs to check the VID, PID of the port.




          Best Regards,