int main(void){
const uint16_t delay_t = 1000; //Debug LED flash
bool less_delay = false; //compensate for LEx_led delay
cli();//Disable Global Interrupt
SPI_init();
USART1_init(103); //9600 baud rate
sei(); //Enable Global Interrupt
//set port as output
//short pulse to execute the cmd received by the phase shifter
DDRB |= 1<<DDB6; //LE1 pulse
DDRB |= 1<<DDB5; //LE2 pulse
DDRB |= 1<<DDB4; //LE3 pulse
DDRB |= 1<<DDB7; //LE4 pulse
//LED flashes after LE1 pulse is applied
DDRE |= 1<<DDE6; //PE6; LE1 LED
DDRC |= 1<<DDC7; //PC7; LE2 LED
DDRC |= 1<<DDC6; //PC6; LE3 LED
DDRD |= 1<<DDD7; //PD7; LE4 LED
DDRB |= 1<<DDB0; //debug; set port as output
DDRD |= 1<<DDD5; //set as output
PORTD |= 1<<DDD5; //turn off LED
while (1){
PINB |= 1<<PINB0;
USART1_TX(0x15);
if(LE1_led == 1){
LE1_led = 0;
PINE |= 1<<PINE6; //turn on
_delay_ms(LEx_led_t);
PINE |= 1<<PINE6; //turn off
less_delay = true;
}
if(LE2_led == 1){
LE2_led = 0;
PINC |= 1<<PINC7; //turn on
_delay_ms(LEx_led_t);
PINC |= 1<<PINC7; //turn off
less_delay = true;
}
if(LE3_led == 1){
LE3_led = 0;
PINC |= 1<<PINC6; //turn on
_delay_ms(LEx_led_t);
PINC |= 1<<PINC6; //turn off
less_delay = true;
}
if(LE4_led == 1){
LE4_led = 0;
PIND |= 1<<PIND7; //turn on
_delay_ms(LEx_led_t);
PIND |= 1<<PIND7; //turn off
less_delay = true;
}
if(less_delay){
_delay_ms(delay_t-LEx_led_t);
less_delay = false;
} else{
_delay_ms(delay_t);
}
}
}
int uart1_putchar(int c)
{
USART1_TX(c);
return (unsigned char)c;
}
