void main(void)
{
init();
while (1) {
while (usiTwiDataInReceiveBuffer()) { // process I2C command
processTWI();
process_keyrepeat();
}
}
}
int main()
{
// set digits as output and disable them all
DIG1_DDR |= _BV(DIG1_PIN);
DIG2_DDR |= _BV(DIG2_PIN);
DIG3_DDR |= _BV(DIG3_PIN);
DIG4_DDR |= _BV(DIG4_PIN);
light_digit(0);
// setup all segments as inputs and low
SEG_A_DDR &= ~_BV(SEG_A_PIN);
SEG_B_DDR &= ~_BV(SEG_B_PIN);
SEG_C_DDR &= ~_BV(SEG_C_PIN);
SEG_D_DDR &= ~_BV(SEG_D_PIN);
SEG_E_DDR &= ~_BV(SEG_E_PIN);
SEG_F_DDR &= ~_BV(SEG_F_PIN);
SEG_G_DDR &= ~_BV(SEG_G_PIN);
SEG_A_PORT &= ~_BV(SEG_A_PIN);
SEG_B_PORT &= ~_BV(SEG_B_PIN);
SEG_C_PORT &= ~_BV(SEG_C_PIN);
SEG_D_PORT &= ~_BV(SEG_D_PIN);
SEG_E_PORT &= ~_BV(SEG_E_PIN);
SEG_F_PORT &= ~_BV(SEG_F_PIN);
SEG_G_PORT &= ~_BV(SEG_G_PIN);
// set DP as output and to ground
SEG_DP_DDR |= _BV(SEG_DP_PIN);
SEG_DP_PORT &= ~_BV(SEG_DP_PIN);
// set up timer 1 as system clock
TIMSK = (1 << TOIE0); // overflow interrupts
TCCR0B = TIMER0_CLKDIV_488Hz; // default blink rate at 488Hz
// init the TWI slave
usiTwiSlaveInit(SLAVE_ADDRESS);
// enable interrupts
sei();
// The infinite loop
while (1)
{
// process Twi commands
while (usiTwiDataInReceiveBuffer())
{
processTWI();
}
}
}
