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USB virtual port and emulation

Denis Jeanroy

Hello

I'm working on a CDC USB communication (Atmel ARM9 processor).
On the PC side, I have a virtual comm port.
When my device runs without JTAG/ emulation (UV4), it works fine,
but when I try to debug using JTAG / UV4, all comm ports are declared to be used by another software.
A test communication with a software like hyperterminal is then impossible.

Does the JTAG Ulink2 or µvision / debugger reserve virtual comm ports ?
How can I debug AND test my dialog throughj USB/comm port on the same PC ?

Thanks for your help
Denis

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