Hi. I’m working on a project using the TM4C129XNCAD, IAR 7.20.2.7431 as the dev tool, and TI-RTOS2.00.02.36. We have implemented 4 virtual COM ports and they are working fine. Our customer has requested we use their licensed VID and PID numbers. I have made those changes and updated the driver, Windows recognizes the ports and everything looks fine. However, the serial devices no longer work. No other changes were made to the code other than the VID and PID.
Is there something in the library that prevents the ports from operating when used with a VID/PID other than the USB_VID_TI_1CBE and USB_PID_SERIAL licensed by TI? Thanks for any advice you might have.