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Problem with fsl_usb_framework and PE

Question asked by David Pfaltzgraff on Mar 19, 2015
Latest reply on Mar 23, 2015 by David Pfaltzgraff

I am trying to use the combination of HDS/KSDK/PE and MQX to set up a simple USB Host application. My starting point was merely an MQX task that printed an identifying banner. That worked OK.

 

When I added fsl_usb_framework, the task would never execute. It appears that some interrupt is coming in before control is passed over to my task. To test this idea, I went back to PE and disabled the "Auto Initialization". I know that nothing would get done with the USB, but when my task printed the banner, I knew that it was due to initialization of the component.

 

So I went back in and re-enabled it and of course, I'm stuck somewhere in the kernel.

 

If someone knows what I've done wrong, I'm willing to listen. If not, then I need some help to delve into the lower levels of the processor and find out what is causing the interrupt.

 

Thanks

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