I designed a board using the chip CY7C65215 based on the schematic shown in the datasheet. I didn't use the MCU, the Battery Charger and other peripherals as the datasheet said. When I connected the board to my PC via a USB cable, the PC cannot detect a new USB device, neighter the USB Serial Configuration Utility.
The schematic diagram is as below. Does it meet the minimum requirements for the chip to work? I had check the schematic and the PCB for a whole day, but I couldn't get any solution. Who can tell me if I miss somthing?
Thank you very much!