I have a USB device (development board with firmware) that I connect to using Hyperterminal (or Tera Term). When I power the device, connect it to the PC and bring up Hyperterminal, all is good. It enumerates and I can connect.
At this point, if I cycle power on the device, after it comes up Hyperterminal will not communicate. I then kill Hyperterminal and bring it back up but the COM port that was enumerated earlier is no longer in the list of valid ports.
At this point, I disconnect Hyperterminal, cycle power on the device then reconnect. All is well.
What am I not understanding about the USB initialization/enumeration sequence?
Btw, the PC is running Windows XP.
Thanks.
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