I just purchased a CY3652C Development kit and it fails the self-test program. The Device Manager shows UNKNOWN device.

Question: I just purchased a CY3652C Development kit and it fails the self-test program. The Device Manager shows UNKNOWN device.

 

Answer:

If you have correct S1 and S3 settings and the mode is selected to "Program ROM", but the mouse cursor doesn't draw "USB" on the screen, there's a possibility that the ROM chip is corrupted. This is not a big deal as long as the "Program RAM" mode works because the "Program ROM" is just a self test. My suggestion is to get a working hub firmware (or logo) from the Application group and try to download it onto your board.

After you download your firmware (the .rom file) onto the board, remember to press the red reset button before plugging the USB cable in. Also, the settings should be:

Comm Port settings to:
        Baud rate = 9600
        Data Bits = 8
        Parity = None
        Stop Bits = 1
        Flow Control = Xon/Xoff


Switch S3 configuration:

     Position 1: press the switch to "open" (Program RAM)

     Position 2 and 3: "close" (default)


The rest of the switch: open (default)

Switch S1 config. :

    Position 1: press the switch to "open" (default)

    Position 2: close (disable watch dog)

    Position 3: open (enable bus reset)

The rest of the switch: open (default)

Press reset and plug the USB cable in. If the board is working, your development kit should enumerate in the Device Manager.