BRTOS Problem

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BRTOS Problem

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emh203
Contributor II

Hello:

 

I am hoping that the guys from BRTOS lurk here.   I tried loading the quikstick example that has SD+USB_CDC example.    It compiles correctly and downloads but I get the error "unkown device" when I plug into my system.  (Windows 7 - 64-bit).

 

I have yet to get a working USB example with the kinetis.   Has anyone else seen this problem?

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4 返答(返信)

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mjbcswitzerland
Specialist V

Hi

 

Wasn't this answered here: https://community.freescale.com/message/97176#97176 ?

 

Regards

 

Mark

 

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emh203
Contributor II

The problem seemed to be hardware.  I hacked another circuit with the same chip and it worked.   The CDC driver didn't work but the link you pointed me too seemed to work ok. Thanks.   Just trying to find an example that I can backport to a bare metal implementation.

 

 

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gustavod
Contributor III

Hi,

 

I am Gustavo from the BRTOS project. Regarding your question about a bare metal USB CDC, i must say that BRTOS driver is based on the bare metal driver provided by Freescale:

 http://www.freescale.com/webapp//sps/site/prod_summary.jsp?code=MEDICALUSB&nodeId=0152109D3F

 

So, you can download the Freescale code and use the USB CDC demo.

 

Regards.

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emh203
Contributor II

Thank you for the info.  I did get everything to work.

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