USB Connection Issues

[craigcarder]

Hello,

    I'm developing with a K60 processor and have developed a Mass Storage Drive to an SD Card via USB using MQX.  The device connects on certain PCs and not others.  It seems like a Windows issue.  Does anyone have any recommendations for a fix?  I'm thinking a Windows driver or something like that.  Ultimately, we'd like this to work on any PC.

Thanks

Craig

[mjbcswitzerland]

Craig

The advantage of USB-MSD is that there is no need to supply a driver and so it should operate identically on any PC, MAC or Linux.

Unreliability with USB-MSD is probably more an issue with the enumeration (electriocal, protocoll). Do you have an analyser to record the enumeration to ensure that this is completing normally on PCs with problems?

regards

Mark