Can you please follow the below mentioned items.
1)Test The USB HID example project in PSoC Creator. If this is working fine means USB HID port is functioning properly
2)In the USB_UART project make sure that voltage is configured properly.
3)Try to bind the device to windows certified serial driver
Please refer to :http://www.cypress.com/forum/psoc-3-known-problems-and-solutions/use-cypress-microsoft-certified-usb-uart-driver for more details.Please let us know if it is working fine after following these steps.
Ultimately, it appears Windows is finicky about connecting to my hardware. In terms of USB, the device is now detected everytime it is plugged in. However, that are many times where opennening a serial port connection with ruby (which uses WinApi I believe) to the device fails (however, putty serial connection almost always work).
So, something seems really finicky software wise on the PC side, even though the hardware looks fine and connects fine.