2 Replies Latest reply on Nov 17, 2017 12:01 AM by olof_1999891

    Can a CCG3 become a USB to UART bridge?

    user_472211271

      Hi, I am working with a microcontroller that only has a UART for serial communications.  Would it be possible to create a USB to UART virtual port bridge inside the CCG3 to interface with the microcontroller?

        • 1. Re: Can a CCG3 become a USB to UART bridge?
          lisz

          Hi Chris,

           

          The CCG3 can be realize it by customize firmware internal. I just want to let you know CYPD3120 and CYPD3123 firmware project have already implemented USB to I2C bridge internal. The related firmware source code is bb_internal.c, usb_hid.c.

           

          Best Regards,

          Lisa

          • 2. Re: Can a CCG3 become a USB to UART bridge?
            olof_1999891

            Hi!

             

            We got the same response from Lisa before and we have almost got USB HID to work now by modifying the USB Billboard device class that is included in the DP-dongle source code example. We didn't use the USB to I2C bridge which is used for firmware/debug interface, we felt that was too dangerous

             

            We thought also about doing UART instead but that would be a larger step to go from based on the Billboard class.

             

            We used a standard PSoC 5LP / PSoC creator to generate all descriptor file content and then inserted them into the CCG4 GW BTW, there is is just drag-n-drop to add USB HID/UART.

             

            Lisa: You need to tell your product managers to enable the designer-view in PSoC creator to work with these block on the CCGx firmware. Then you product would be clearly better than TI's products.

             

            Cheers

            Olof