When starting a flight with ACARS you must be at the gate with your parking brake set. After setting the parking brake and toe brakes I press start flight and the start button remains green and nothing happens. After waiting for a considerable period of time I determined that ACARS was not reading the TBM 900 data. I do not have pedals I am using a joystick, I set the parking brake knob also the toe brakes are set per instructions. The MFD shows the parking brake is set. I have tried several combinations of braking, both keyboard and joystick, with the parking brake knob below the yoke, no success. I have tested ACARS with several other aircraft and it functions properly. My joystick is a Thrust Master T-Flight Hoyas X.