JOHN ADAMSON

5329EVB, new LTIB and 3 serial ports - USB problems?

Discussion created by JOHN ADAMSON on Jan 5, 2008
Latest reply on Jan 7, 2008 by JOHN ADAMSON
When I boot the 5329EVB with the latest LTIB, I notice that all three UARTS are recognized.

My memory is a bit fuzzy, but when I tried enabling that third port (ages ago), I found that one of the third port UART signals (TX or RX) was also being used to control something on the USB port, and so USB operation became unreliable.  USB worked sometimes on one EVB, but not on another.  As I recall, the problem went all the way back to the SOM module, so there was little hope of fixing it if I wanted to use the SOM. 

Did someone find a way around the problem?  Or could someone at Freescale have made the same mistake I did, and that's why I'm having USB problems again?

John

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