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
>>Is the Flash Download also set to ULINK2?
Yes, the target is flashed through the JTAG link, and this is OK.
>>Which example are you based on? Atmel's? I started from the Atmel CDC serial example usb-device-cdc-serial-project-at91sam9xe-ek-keil I just want a serial link between my device and a PC. the inf file is based on the 6119.inf template, with only a string modified for the name of the connection.
when the connection is OK, the device is recognized, its names is displayed, and sometimes a test using a terminal software like hyperterminal makes it possible to send and receive some strings. But most of the time, the com port is said used, and the test is impossible.
Denis