This is a quick start and user guide for the Cypress USB to serial reference design. The guide includes steps for setting up the development kit, customizing the firmware, connecting the serial device, enumerating the device, and testing the firmware.
This guide walks you through the entire process of using the Cypress USB‑to‑Serial reference design. It starts with setting up the development kit, customizing the firmware (including vendor and product IDs), connecting the serial device, and verifying enumeration in the operating system. It then covers driver installation with HidCOMInst, creating a custom INF file, and running the provided host applications for testing.
Additional sections explain how to use the three supplied software tools (HidCOMInst, HidCOMTest, Serial Test), troubleshoot common issues such as driver loading problems or communication errors, and provide an example Visual Basic application that demonstrates communication via the HID driver.
| Vendor ID / Product ID | customizable in firmware |
|---|
Run the HidCOMInst executable, which copies the INF file and driver (Ccport.sys or HidCom.sys) into the proper system directories.
Use the HidCOMTest or Serial Test applications to perform loopback or communication tests between the virtual COM port and a real serial port.
In HidCOMTest select the device, then click the “Write .INF” button to add your specific VID and PID to the INF file automatically.