RA6M5: make it work as a USB-UART converter

Hello,

I'm working on a RA6M5 MCU.

I'm trying to find a way to make it work as a USB-UART converter. I found a USB PCDC sample project: "C:\Code\ra-fsp-examples\example_projects\ek_ra6m5\usb_pcdc\usb_pcdc_ek_ra6m5_ep\e2studio".

But there is no UART stack in the project. There is also no sample code demonstrate how to forward the data between USB and UART. Is there any sample project does that?

Thanks in advance!