according to your description I assume that you try to use a Timer within your GUI application to create a stopwatch with millisecond accuracy. Please note, that expiring timers are processed within the GUI update cycle, the so called main loop.
Timer objects within Embedded Wizard are intended to be used for GUI animations to trigger a certain action after a desired time period. These are not realized by separate hardware timers.
In order to access time functions from the standard C library or from your own API you can use native code within your GUI project.
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