int main(){
//sei();
//initializing a2d converter
adc_init();
// initialize fast PWM on PB1 (OSCR1A)
//setup_pwm();
// setting up serial communication 8E2 asynchronous mode.
// 4800 baud , 8 data bits , two stop bits, even parity.
//serial_init(BAUD_RATE);
serial_init(4800);
//initilize LEDs
init_leds();
TCCR0 = 0b101;
TCNT0=0;
TIMSK |= _BV(TOIE0);
sei();
TIMSK |= _BV(TOIE0);
// initial blink
startblink();
OCR1A = 0x0000;
// main loop that polls the distance sensor.
while(1){
_serial_write('a');
while ((UCSRA & 0b01000000) == 0b00000000);
_delay_ms(150);
}
return 0;
}
int serial_write_blocking(struct serial_device_t *serial,
const void *buf,
size_t count,
unsigned int timeout_ms)
{
return _serial_write(serial, buf, count, 0, timeout_ms);
}
bool
serial_write(register uint8_t c)
{
if (serial_write_space() < 1)
return false;
_serial_write(c);
return true;
}
/**
* Write a number of bytes to the specified serial port, return immediately.
*
* @param serial Previously initialized serial port structure.
* @param[in] buf Buffer containing the bytes to write.
* @param[in] count Number of bytes to write.
*
* @retval SR_ERR_ARG Invalid argument.
* @retval SR_ERR Other error.
* @retval other The number of bytes written.
*
* @private
*/
SR_PRIV int serial_write_nonblocking(struct sr_serial_dev_inst *serial,
const void *buf, size_t count)
{
return _serial_write(serial, buf, count, 1, 0);
}
