void greenAndRed(void){
greenDirection = 1;
interval = 2800;
level = 0;
extTIrqHandler = gnrTIrqHandler;
extKIrqHandler = gnrKIrqHandler;
lcdSetCursor(0,0);
lcdPixelsDraw(240*320, BACKGROUND_COLOUR);
lcdSetBackgroundColour(BACKGROUND_COLOUR);
lcdSetFontColour(BRICK_COLOUR);
lcdPrint(10,10, "LEVEL 0");
objectDraw(&brick, 50, 152);
objectDraw(&flier, 150, 10);
greenCounter = 0;
redCounter = 0;
timerSetMatch(interval);
while(1){
irqDisableSec();
lcdSetFontColour(BRICK_COLOUR);
lcdDrawChar(10, 246, (char)(greenCounter+48));
lcdSetFontColour(63, 0, 0);
lcdDrawChar(10, 294, (char)(redCounter+48));
irqEnableSec();
waitCycles(0x6fffff);
lcdFillWindow(10, 26, 246, 310, BACKGROUND_COLOUR);
waitCycles(0x6fffff);
}
}
void
gpio::setPullUpDown( uint8_t pin, PullMode mode ) {
// Get the GPIO controller registers
volatile uint32_t ®_pullupdown = *( m_gpio + GPPUD0 ),
®_clock = *( m_gpio + GPPUDCLK0 + ( pin / 32 ) );
// Enable/disable pull-up/down control on the GPIO pin
// 00 = Disable pull-up/down
// 01 = Enable pull-down control
// 10 = Enable pull-up control
// 11 = Reserved
reg_pullupdown = (uint32_t) mode;
// Set clock con pin
waitCycles( 150 );
reg_clock = 1 << ( pin % 32 );
waitCycles( 150 );
// Restore the registers
reg_clock = 0;
reg_pullupdown = 0;
}
void kIrqHandler()
{
unsigned int tmp;
int a, x;
for (a = 1; a <= 4; a++) {
/*
* only one line from 1-4 should be high
* at one moment
*/
for (x = 1; x <= 4; x++) {
if (x != a) {
setGpioFunct(pinToGpio[x], GPINPUT);
}
}
setGpioFunct(pinToGpio[a], GPOUTPUT);
setPin(pinToGpio[a]);
waitCycles(30);
/*
* for every output line going high, check
* which input line goes high; store in kBuffer
*/
for (x = 5; x <= 8; x++) {
if (getPinLevel(pinToGpio[x]) == 1) {
kBuffer = (4 * (a - 1)) + (x - 5);
// very sorry - it's
// probably the best way
goto exit;
}
}
clearPin(pinToGpio[a]);
}
exit: for (x = 1; x <= 4; x++) {
setGpioFunct(pinToGpio[x], GPOUTPUT);
setPin(pinToGpio[x]);
}
if(extKIrqHandler!=0) extKIrqHandler();
return;
}
