For the sample applications using the devices that are not supported on EVK2080 and QT600 the debug interface code is not provided. This is because a separate USB bridge board is required to read the data and display it on QTouch studio. However in this case the output touch measurement data can still be viewed using the IAR or AVR Studio IDE when running the code in debug mode using debug wire or emulator.
extern qt_touch_lib_measure_data_t qt_measure_data;
The qt_measure_data global variable contains the output touch measurement data.
For GCC generated libraries the output touch measurement data can be observed on the watch window through the pointer pqt_measure_data.
qt_touch_lib_measure_data_t *pqt_measure_data = &qt_measure_data;