topic Re: MQX USB Device stack in MQX Software Solutions

MQX USB Device stack

admin — Tue, 16 Jun 2009 20:40:25 GMT

I am using MCF52259 microcontroller. I want to implement USB device in my project and I want to use USB device as Virtual COM port. I have following questions.

1. Is it possible to implement Virtual COM port using MQX USB device stack?

2. Is there any sample code to implement Virtual COM port using MQX USB device stack?

3. If I am able to implement Virtual COM Port in my hardware then where will I get virtual COM drivers for PC?

Thanks.

Re: MQX USB Device stack

mjbcswitzerland — Sat, 20 Jun 2009 03:59:37 GMT

I believe that there is CDC device support in the latest MQX version.

It is probably easiest to use usbser.sys, which is available on every Windows PC. This allows a virtualCOM to be used without any extra work on the PC side.

Se also the following for more details: http://www.utasker.com/docs/uTasker/uTaskerV1.3_USB_Demo.PDF

Regards

Mark

Re: MQX USB Device stack

siddu — Tue, 19 Jan 2010 14:38:00 GMT

Hi Prakash,

I am also looking for the similar kind of application. did u get a chance to implement this?

Regards

-Subhashini

Re: MQX USB Device stack

DavidS — Wed, 03 Feb 2010 23:26:19 GMT

Have you tried the following example:

C:\Program Files\Freescale\Freescale MQX 3.4\usb\device\examples\cdc\virtual_com

Regards,

David

Re: MQX USB Device stack

Prajwal — Sat, 14 Jul 2012 12:48:54 GMT

Hey i too am working on MCF52259 and trying to implement USB CDC device. Did you get the answer of how to do it using MQX?

Re: MQX USB Device stack

DavidS — Tue, 16 Oct 2012 13:46:00 GMT

Hi Prajwai,

Did you try the lastest MQX release and run the following demo:

C:\Freescale\Freescale MQX 3.8\usb\device\examples\cdc\virtual_com

Regards,

David