Hello,
the example "frdmke15z_tsi_v5_selfmode" is really simple example to support TSI driver only, this example does not contain the advanced touch software features like complete TSI HW configuration with selfcap and mutual mode, keydetectors, filters, controls ... and this example is not intended to be used together with FreeMASTER because there is no support of the Touch tool integrated in FreeMASTER.
It is recommended to use the frdmke15z_touch_sensing example rather supporting selfmode as well plus FreeMASTER with Touch tool together, furthermore all mentioned is tested and ready to be used.