comparison: receiver/main.c
receiver/main.c
- changeset 10
- 6d6e982bbc41
- parent 9
- 20dbe0546a36
- child 11
- 69c2a1408619
equal
deleted
inserted
replaced
| 9:20dbe0546a36 | 10:6d6e982bbc41 |
|---|---|
| 127 | 127 |
| 128 writeBit(PORTD, 4, 1); | 128 writeBit(PORTD, 4, 1); |
| 129 SREG = sr; | 129 SREG = sr; |
| 130 } | 130 } |
| 131 | 131 |
| 132 volatile uint8_t pulse_counter = 0; | 132 volatile uint16_t pulse_counter = 0; |
| 133 volatile uint8_t measure_progress = 0; | 133 volatile uint8_t measure_progress = 0; |
| 134 volatile uint8_t car_id = 0; | 134 volatile uint16_t car_id = 0; |
| 135 ISR(TIMER2_OVF_vect) { | 135 ISR(TIMER2_OVF_vect) { |
| 136 //TCNT2 = 0x90; | 136 TCNT2 = 0xF5; |
| 137 pulse_counter++; | 137 pulse_counter++; |
| 138 } | 138 } |
| 139 | 139 |
| 140 ISR (INT1_vect) { | 140 ISR (INT1_vect) { |
| 141 // measure pulse width | 141 // measure pulse width |
| 142 //RS232_putc('x'); | 142 //RS232_putc('x'); |
| 143 if (measure_progress == 0) { | 143 if (measure_progress == 0) { |
| 144 // start measuring | 144 // start measuring |
| 145 TCNT2 = 0xF5; | |
| 145 pulse_counter = 0; | 146 pulse_counter = 0; |
| 146 measure_progress = 1; | 147 measure_progress = 1; |
| 147 // set INT1 to rising edge (stops current measurement) | 148 // set INT1 to rising edge (stops current measurement) |
| 148 //MCUCR |= _BV(ISC10); | 149 //MCUCR |= _BV(ISC10); |
| 149 writeBit(PORTD, 4, 1); | 150 writeBit(PORTD, 4, 1); |
| 177 //TCCR2 = (1<<CS21); // divide 8 | 178 //TCCR2 = (1<<CS21); // divide 8 |
| 178 TCCR2 = (1<<CS20); // divide 1 | 179 TCCR2 = (1<<CS20); // divide 1 |
| 179 TIMSK = 1<<TOIE2; | 180 TIMSK = 1<<TOIE2; |
| 180 | 181 |
| 181 // configure INT0+1 for falling edge | 182 // configure INT0+1 for falling edge |
| 182 MCUCR = _BV(ISC00) | _BV(ISC11); | 183 // INT2 on every edge |
| 183 // GICR = _BV(INT0) | _BV(INT1) ; // Enable INT0/2 | 184 //MCUCR = _BV(ISC00) | _BV(ISC11); |
| 184 GICR = _BV(INT1) ; // Enable INT0/2 | 185 MCUCR = _BV(ISC11); |
| 186 // GICR = _BV(INT0) | _BV(INT1) ; // Enable INT0/1 | |
| 187 GICR = _BV(INT1) ; // Enable INT1 | |
| 185 | 188 |
| 186 writeBit(DDRD, 4, 1); | 189 writeBit(DDRD, 4, 1); |
| 187 | 190 |
| 188 | 191 |
| 189 RS232_init(); // initialize RS485 interface | 192 RS232_init(); // initialize RS232 interface |
| 190 RS232_puts_p(PSTR("INIT OK\n")); | 193 RS232_puts_p(PSTR("INIT OK\n")); |
| 191 | 194 |
| 192 itoa (TIMER_100US, s, 10); | |
| 193 RS232_puts(s); | |
| 194 | |
| 195 RS232_puts_p(PSTR(" timer\n")); | |
| 196 i = 0; | 195 i = 0; |
| 197 | 196 |
| 198 sei(); | 197 sei(); |
| 199 while (1) { | 198 while (1) { |
| 200 // main loop | 199 // main loop |
