File content as of revision 4:dc3556a31262:

#define TARGET_STM32F4XX
#define NUM_OF_BUTTONS 32
#define NUM_OF_HAT_BUTTONS 4
#define SYSTEM_CLOCK_HZ                 96000000  // 96MHz 

// Joystick button input pin assignments.  
//
// You can wire up to 32 GPIO ports to buttons (equipped with 
// momentary switches).  Connect each switch between the desired 
// GPIO port and ground (J9 pin 12 or 14).  When the button is pressed, 
// we'll tell the host PC that the corresponding joystick button is 
// pressed.  We debounce the keystrokes in software, so you can simply 
// wire directly to pushbuttons with no additional external hardware.
//
// Note that we assign 24 buttons by default, even though the USB
// joystick interface can handle up to 32 buttons.  VP itself only
// allows mapping of up to 24 buttons in the preferences dialog 
// (although it can recognize 32 buttons internally).  If you want 
// more buttons, you can reassign pins that are assigned by default
// as LedWiz outputs.  To reassign a pin, find the pin you wish to
// reassign in the LedWizPortMap array below, and change the pin name 
// there to NC (for Not Connected).  You can then change one of the
// "NC" entries below to the reallocated pin name.  The limit is 32
// buttons total.
//
// (If you're using TLC5940 chips to control outputs, many of the
// GPIO pins that are mapped to LedWiz outputs in the default
// mapping can be reassigned as keys, since the TLC5940 outputs
// take over for the GPIO pins.  The exceptions are the pins that
// are reassigned to control the TLC5940 chips.)
//
// Note: PTD1 (pin J2-12) should NOT be assigned as a button input,
// as this pin is physically connected on the KL25Z to the on-board
// indicator LED's blue segment.

PinName buttonMap[] = {
    PB_3,      // button 1
    PB_5,      // button 2
    PB_10,     // button 3
    PC_7,      // button 4
    PB_6,      // button 5
    PA_5,      // button 6
    PB_4,      // button 7
    PB_13,     // button 8
    PB_14,     // button 9
    PB_15,     // button 10
    PB_1,      // button 11
    PB_2,      // button 12
    PC_5,      // button 13
    PC_6,      // button 14
    PC_8,      // button 15
    PC_4,      // button 16
    NC,        // button 17
    NC,        // button 18
    NC,        // button 19
    NC,        // button 20
    NC,        // button 21
    NC,        // button 22
    NC,        // button 23
    NC,        // button 24
    NC,        // button 25
    NC,        // button 26
    NC,        // button 27
    NC,        // button 28
    NC,        // button 29
    NC,        // button 30
    NC,        // button 31
    NC         // button 32
};

PinName hatMap[] = {
    PC_2,      // button 1
    PC_3,      // button 2
    PC_10,     // button 3
    PC_12,      // button 4
    NC,        // button 5
    NC,        // button 6
    NC,        // button 7
    NC         // button 8
};


// STANDARD ID SETTINGS.  These provide full, transparent LedWiz compatibility.
const uint16_t USB_VENDOR_ID = 0x1209;      
const uint16_t USB_PRODUCT_ID = 0xACDE;     
const uint16_t USB_PRODUCT_VER = 0x0002;