Kinetis MicrocontrollersのトピックRe: Tower K40 + SERIAL Card + USB CDC

Tower K40 + SERIAL Card + USB CDC

emh203 — Fri, 08 Jul 2011 17:38:29 GMT

Has anyone gotten the USB device function to work yet? I am using a K40 Tower with the serial card. WHen I run the USB_CDC example all I can ever get is "USB device not recognized".

Also, I am using the Codewarrior based exampled.

Any pointers?

Re: Tower K40 + SERIAL Card + USB CDC

gustavod — Fri, 08 Jul 2011 19:09:09 GMT

Hi emh203,

I'm using CDC in the TWR-K60N512 (K60) and KwikStik (K40) kits. It is working perfect on Codewarrior 10.1.

You can download the code here:

http://code.google.com/p/brtos/downloads/list

The project for the K40 (KwikStik) is this:

http://brtos.googlecode.com/files/BRTOS%201.6x%20K40%20-%20SD%20card.rar

Regards,

Gustavo

Re: Tower K40 + SERIAL Card + USB CDC

emh203 — Sat, 09 Jul 2011 03:32:08 GMT

Do you by chance have a non RTOS example? You you ever seen the freescale supplied example work?

Re: Tower K40 + SERIAL Card + USB CDC

gustavod — Mon, 11 Jul 2011 01:18:17 GMT

I do not have a non RTOS example ready to go.

However, you can use the code provided in the demo without BRTOS. For that you must remove the other tasks and use the USB task as the main. In this case you must substitute the RTOS queue by one developed by you (or just make an ping-pong test).

Re: Tower K40 + SERIAL Card + USB CDC

mjbcswitzerland — Sat, 16 Jul 2011 01:17:28 GMT

I can also run this demo on the K40 tower board: http://www.youtube.com/watch?v=H4TYM9jY2-g

- the code is not exactly the same since the clock needs to be configured for 8 MHz crystal rather than 25MHz external clock on the K60 but other than that it is identical.

Regards

Mark

P.S. Make sure that the serial board is not inserted incorrectly 180° since it is easy to do and then neither UART nor USB work.