Serial Communication with nrf5340 and Windows 10

RE: Serial Communication with nrf5340 and Windows 10

Einar Thorsrud — Mon, 24 Jun 2024 08:12:31 GMT

Hi,

I am glad to hear you got it working. Unfortunately you cannot get just a USB CDC device showing up in VS Code, as it requiers J-Link (see the documentation for details).

RE: Serial Communication with nrf5340 and Windows 10

mhandford — Fri, 21 Jun 2024 17:28:33 GMT

I seem to have crossed my positive and negative inputs on the usb lines on the board. I used your supplied code, and it works perfectly with puTTy. Thanks for your help trouble shooting.

As a follow up, is there any way to get nrf connect to detect the board as a device? While I can get the puTTy terminal to see the board, it doesn't show up under "connected devices" in vscode.

RE: Serial Communication with nrf5340 and Windows 10

mhandford — Fri, 21 Jun 2024 17:01:45 GMT

I have uploaded the code to the nrf5340dk and it seems to work. So maybe it's an issue with the board? Are there certain pin requirements for CDC ACM to work?

RE: Serial Communication with nrf5340 and Windows 10

mhandford — Fri, 21 Jun 2024 16:59:03 GMT

Windows still doesn't recognize the usb device.

I've swap to trying the usb console sample that seems like a simpler sample to work with.

I will attach the project files. devzone.nordicsemi.com/.../6064.console.zip

RE: Serial Communication with nrf5340 and Windows 10

Einar Thorsrud — Fri, 21 Jun 2024 14:37:21 GMT

Hi,

I did a quick test on my end using the following device tree overlay:

/ {
	chosen {
		zephyr,console = &cdc_acm_uart0;
	};
};

&zephyr_udc0 {
	cdc_acm_uart0: cdc_acm_uart0 {
		compatible = "zephyr,cdc-acm-uart";
	};
};

And with that I got terminal over CDC ACM working on Windows 10. Does it work if you do this on your end? If not, can you share the entier project with your modifications?