LPC MicrocontrollersのトピックRe: USB 2 CAN-FD

USB 2 CAN-FD

dav1 — Wed, 10 Feb 2021 00:08:33 GMT

Hi,

Are there any implementaions of a raw USB to CAN FD adapter running on the LPC 5x series?
i.e. host-side runs on Linux, C, socket or python/libusb library.
lpc just acting as a packet relay, like a USB2UART adapter but for CAN-FD

Re: USB 2 CAN-FD

ZhangJennie — Fri, 12 Feb 2021 05:38:26 GMT

Hi dav1

I would suggest you refer AN12646. demo code is attached.

https://www.nxp.com.cn/docs/en/application-note/AN12646.pdf

Besides, we also have CAN-FD demo code and SDK package(usb semo and CAN demo are included separately). You can download here

https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/lpc54000-cortex-m4-/power-efficient-microcontrollers-mcus-with-advanced-peripherals-based-on-arm-cortex-m4-core:LPC546XX?tab=Design_Tools_Tab

Have a nice day

Jun Zhang

Re: USB 2 CAN-FD

frank_m — Fri, 12 Feb 2021 10:04:03 GMT

I guess your combination would be hard to find, at least as free source.

CAN adapters for PCs do exactly the thing you ask for, but usually commercial products and closed source. And perhaps not even Cortex M based.

Re: USB 2 CAN-FD

dav1 — Fri, 12 Feb 2021 12:49:27 GMT

Frank, yes, the "CAN world" is definitely different, 20x price for basically the same as any UART/RS-485 serial-adapter that is basically same.

Jun, many thanks for the link. I think we can use it as a base. You don't happen to have some demo with CAN-FD over USB?

Re: USB 2 CAN-FD

ZhangJennie — Sat, 13 Feb 2021 09:34:07 GMT

Hi Dav

Yes, you can use AN12646 as base, referring CAN-FD demo and SDK I recommended as reference if needed.

Unfortunately, we don't have demo with CAN-FD over USB.

Have a nice day,

Jun Zhang