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251209_main_test

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Maciej Bowszys 2025-12-09 21:54:25 +01:00
parent edf2acc6cc
commit 63ca975f6f
1 changed files with 121 additions and 0 deletions
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121
recv/pixmod_recv_1v0/main.c
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@ -154,3 +154,124 @@ int uart_putchar(char c, FILE *stream) {
uint16_t tim1_ic_val = 0;
char tim1_ic_flag = 0;
uint16_t read_chained_timer(void) {
uint8_t sreg = SREG;
cli();
uint8_t high_byte = TCNT0;
uint8_t low_byte = TCNT1;
SREG = sreg;
sei();
return ((uint16_t)high_byte << 8) | low_byte;
}
ISR(TIMER1_OVF_vect) {
TCNT0++;
}
ISR(PCINT0_vect) {
if(!(PINB & (1 << PULSE_IN_PIN))){ // pulsein pin is low
TCNT0 = 0x00; // reset tim0
TCNT1 = 0x00; // reset tim1
}else{ // pulsein pin is high
tim1_ic_val = read_chained_timer();
tim1_ic_flag = 1;
//GIFR |= (1 << PCIF); // Clear the PCINT Flag (PCIF) after processing the interrupt
}
}
int main() {
int d = 0;
int code = 0;
DDRB &= ~(1 << PULSE_IN_PIN); // set to input
// PORTB |= (1 << PULSE_IN_PIN); // enable pullup
PCMSK |= (1 << PCINT4); // enable pin change interrupt 4
GIMSK |= (1 << PCIE); // enable pin change interrupts
//TCCR1B |= (1 << CS10); // clk/1 prescaler
TCNT1 = 0x00; // reset tim1
TCCR1 &= ~((1 << CS13) | (1 << CS12) | (1 << CS11) | (1 << CS10)); // clear prescalers - stop tim1
TCCR1 |= (1 << CS12); // CS12 high for clk/8 prescaler
//TCCR1 |= (1 << CS11) | (1 << CS10);
TIMSK |= (1 << TOIE1); // enable tim1 overflow int
TCCR0B = 0x00; // clear prescalers to stop tim0
TCNT0 = 0x00;
sei(); // enable int
//if(SERIAL_OUT){
uart_init();
_delay_ms(500);
//}else{
// Initialize I/O: Set the NeoPixel pin as an output
DDRB |= (1 << NEOPIXEL_PIN);
//}
//if(SERIAL_OUT){
printf("starting..\n");
//}else{
//setPixelColor(0, 0, 255, 0);
ws2812_send();
//}
while(1){
if(tim1_ic_flag){
//if(SERIAL_OUT){
//printf("%d\n", (int)tim1_ic_val);
//}
if(tim1_ic_val >= 400){
if(tim1_ic_val > 2000){
//if(SERIAL_OUT){
printf(" %d\n", code);
//}
if(code == 7774){
//if(SERIAL_OUT){
printf("+\n");
//}else{
setPixelColor(1, 0, 255, 0);
ws2812_send();
//}
}else if(code == 15964){
//if(SERIAL_OUT){
printf("-\n");
//}else{
setPixelColor(1, 255, 0, 0);
ws2812_send();
//}
}
code = 0;
}else if(tim1_ic_val > 605){
//if(SERIAL_OUT){
printf("1");
//}
++code;
}else{
//if(SERIAL_OUT){
printf("0");
//}
}
code *=2;
}
tim1_ic_flag = 0;
}
_delay_us(10);
}
return 0;
}