USB Composite LPC1768 CDC

Hello,

I have succeeded in creating a USB composite device that creates four
VCOM's, using a LPC1768. I have looped (via software) the input to the
output on each VCOM. After successfully installing these VCOM's in Windows
7 all works as expected, however when I install them in Windows XP, the
last 3 work properly, except the first one.  The symptoms are that when I
input characters from either Hyper-term or Realterm no echo is seen at that
time. If I disconnect it, then reconnect, the missing characters appear
right after the connection is completed.  This happens only on the first
VCOM only.  Is anyone having the same problems I am?

	   
					
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