CCS/66AK2E05: couldn't test the USB interface named Texas Instrument

Hi, suafie,

The SiLabs CP210x driver is a USB to UART.Bridge and the virtual COM port. In this case it is considered as a COM port, and K2E EVM is not a USB device, so lsusb shouldn't show it. If the driver is installed, it should be shown under lsmod command.

Rex

yes, I mean that I used the USB linker between the computer and the EVM by port C,  but the host couldn't recognize it, then I used the E interface, the host showed   'Cygnal Integrated Products, Inc. CP210x UART Bridge'.  And I used the 'lsmod' command, it showed : usbserial  1 cp210x.

Hi, Suafie,

Please read page 15 of the K2E EVM TRM for the correct connector to use, https://www.ti.com/lit/ug/spruin5/spruin5.pdf?ts=1595343288493&ref_url=https%253A%252F%252Fwww.ti.com%252Ftool%252FEVMK2EX

After the cable connected, the dmesg of Linux host should show which USB port it is using. In our system test farm setup, The Linux host having K2E EVM connected shows the following:

tigtfarm11@tigtfarm11:~$ ls -l /dev/vatf@k2e-evm

lrwxrwxrwx 1 root root 7 Oct 30  2019 /dev/vatf@k2e-evm -> ttyUSB7

Rex