Debug levels:
Debug_Print1 - Public (callback/timer) called.
Debug_Print2 - API function (stock/none) called.
Debug_Print3 - Internal function (static) called.
Debug_Print4 - y_utils function called.
Debug_Print5 - Extra debug lines within a function (outside loops).
Debug_Print6 - Extra debug lines within a loop.
Debug_Print7 - y_amx and y_cell functions called.