void setup_spi() {
// TODO move it out of here
INTDisableInterrupts();
mCNOpen(CN_ON | CN_IDLE_CON, CN1_ENABLE, CN1_PULLUP_ENABLE);
mPORTCRead();
mCNSetIntPriority(6); // same as below
mCNClearIntFlag();
mCNIntEnable(1);
INTEnableInterrupts();
}
/***************************************************************************************************
InitKeyboard
Initialise the keyboard and sound routines.
****************************************************************************************************/
void initKeyboard(void) {
// enable pullups on the clock and data lines.
// This stops them from floating and generating random chars when no keyboard is attached
CNCONbits.ON = 1; // turn on Change Notification module
P_PS2CLK_PULLUP = P_ON; // turn on the pullup for pin D6 also called CN15
P_PS2DAT_PULLUP = P_ON; // turn on the pullup for pin D7 also called CN16
// setup Change Notification interrupt
P_PS2CLK_INT = P_ON; // enable PS2CLK (CN15) as a change interrupt
mCNSetIntPriority(3); // set interrupt priority to 3
mCNClearIntFlag(); // clear the interrupt flag
mCNIntEnable(1); // enable interrupt
}
