I'm using a CY7C65213-28PVXI as a USB-UART bridge to talk to an Atmel AVR (running the Optiboot bootloader). I'm using AVRDUDE to program the AVR. The CY7C65213-28PVXI works flawlessly with AVRDUDE under Linux and Mac, but I am having problems with Windows. I installed the Cypress serial drivers so that it appears as a COM port in the Device Manager.
It seems that after a transmission of a few consecutive bytes from the PC, there is some problem. I have played with the baud rates and FIFO settings. Any thoughts?
Also, is there a way to not have to install the drivers every time? Otherwise, the device shows up as 'Virtual Serial Port Device 00' and not as a COM port.
Can you please elaborate the issue you are facing with consecutive bytes transfer? Or steps to reproduce the issue?
Regarding driver installation problem:
Have you tried using Cypress Driver Installer available in the link: http://www.cypress.com/documentation/software-and-drivers/usb-serial-software-development-kit?