root / branches / autonomous_recharging / code / projects / autonomous_recharging / archs / ConstantCharging.c @ 355
History | View | Annotate | Download (13.1 KB)
1 |
#include <avr/io.h> |
---|---|
2 |
#include <avr/io.h> |
3 |
#include <avr/interrupt.h> |
4 |
#include <avr/sleep.h> |
5 |
#include "ring_buffer.h" |
6 |
#include "i2c.h" |
7 |
|
8 |
|
9 |
// for i2c_byte coming from charge board
|
10 |
//I2C Message Codes
|
11 |
#define I2C_MSG_ACKNOWLEDGE 'A' |
12 |
#define I2C_MSG_BATTERY_CHARGING 'C' |
13 |
#define I2C_MSG_DATA 'D' |
14 |
#define I2C_MSG_CONTACT_ERROR 'E' |
15 |
#define I2C_MSG_BATTERY_FULL 'F' |
16 |
#define I2C_MSG_NO_CONTACT 'N' |
17 |
#define I2C_MSG_REQUEST_DATA 'R' |
18 |
#define I2C_MSG_GO_TO_SLEEP 'Y' |
19 |
#define I2C_MSG_ENTERING_SLEEP 'Z' |
20 |
#define I2C_MSG_HOMING 'H' |
21 |
|
22 |
|
23 |
#define SW0 PA6
|
24 |
#define HOMING_PIN PA7
|
25 |
|
26 |
#define DEBUG 0 |
27 |
#define USE_I2C 1 |
28 |
|
29 |
|
30 |
#define MAX_T 300 |
31 |
#define MIN_T 730 |
32 |
//range is 0 to 45 C
|
33 |
//cal tests:
|
34 |
//room temp - 25
|
35 |
//value ~500, varies from battery to battery, but is consistent on one battery
|
36 |
//freezer 737
|
37 |
//heat gun at a distance 461
|
38 |
|
39 |
#define MAX_DT -4 //this is the LOWEST ACCEPTABLE ADC value |
40 |
#define MAX_DT_ABS 400 |
41 |
#define VOLT_PLATEAU 50 |
42 |
|
43 |
|
44 |
//The following times are in seconds
|
45 |
#define MAX_FAST_TIME 5400 |
46 |
#define MAX_TRICKLE_TIME 600 |
47 |
|
48 |
//debug pins
|
49 |
#define debug_time PA3
|
50 |
#define debug_curr PA4
|
51 |
#define debug_volt PA5
|
52 |
#define debug_temp PA6
|
53 |
#define debug_12in PA7
|
54 |
|
55 |
//be sure admux also sets the MUX5 bit which is in ADCSRB
|
56 |
#define ADMUX_I
|
57 |
#define ADMUX_V
|
58 |
#define ADMUX_T
|
59 |
|
60 |
#define ROBOT_TX PB1
|
61 |
#define ROBOT_RX PB2
|
62 |
#define PWM PB3
|
63 |
#define DETECT_12V PB6
|
64 |
|
65 |
#define LED1 PB4 //Green |
66 |
#define LED2 PB5 //Red |
67 |
|
68 |
|
69 |
//LED States:
|
70 |
//Red - Fast Charging
|
71 |
//Green - Trickle Charging
|
72 |
//Both steady - done charging
|
73 |
//Both Blinking - Error
|
74 |
|
75 |
#define INT_COUNT 2 //interrupts per second |
76 |
#define AVG_COUNT 64 //number of times to count current |
77 |
|
78 |
//To enable the PWM write : TCCR1B = (_Bv(CS10));//enable PWM
|
79 |
|
80 |
uint8_t interrupt_count = INT_COUNT; |
81 |
|
82 |
volatile uint32_t abs_time=1; // start at one second so it doesnt do the minute checks right away |
83 |
volatile uint8_t new_second=0; //only used as a boolean |
84 |
|
85 |
volatile uint8_t error=0; |
86 |
volatile uint8_t status;
|
87 |
|
88 |
volatile uint8_t steady_current = 0; |
89 |
|
90 |
//DT must be triggered twice in a row
|
91 |
volatile uint8_t last_DT = 0; |
92 |
//same for DV
|
93 |
volatile uint8_t last_DV = 0; |
94 |
|
95 |
#define FAST_CHARGE 1 |
96 |
#define TRICKLE_CHARGE 2 |
97 |
|
98 |
RING_BUFFER_NEW(ring_buffer, 12, int, buffer); |
99 |
|
100 |
void wait(int ops) |
101 |
{ |
102 |
int i = 0; |
103 |
while(i<ops)
|
104 |
i++; |
105 |
} |
106 |
|
107 |
|
108 |
|
109 |
int avg_ADC(void) |
110 |
{ |
111 |
int av;
|
112 |
char i;
|
113 |
|
114 |
//Calculate a average out of the next 8 A/D conversions
|
115 |
for(av=0,i=8;i;--i) |
116 |
{ |
117 |
ADCSRA |= _BV(ADSC); // start new A/D conversion
|
118 |
while (!(ADCSRA & (_BV(ADIF)))) // wait until ADC is ready |
119 |
; |
120 |
av = av+ADC; |
121 |
} |
122 |
av = av/8;
|
123 |
|
124 |
//ADCSRA &= ~_BV(ADEN);
|
125 |
|
126 |
return av;
|
127 |
|
128 |
} |
129 |
|
130 |
int get_voltage(void) |
131 |
{ |
132 |
ADMUX = _BV(MUX0); |
133 |
|
134 |
ADCSRB &= ~_BV(MUX5); |
135 |
|
136 |
return avg_ADC();
|
137 |
} |
138 |
|
139 |
int get_current(void) |
140 |
{ |
141 |
ADMUX = _BV(MUX1); |
142 |
|
143 |
ADCSRB |= _BV(MUX5); |
144 |
|
145 |
return avg_ADC();
|
146 |
} |
147 |
|
148 |
int get_temperature(void) |
149 |
{ |
150 |
ADMUX = _BV(MUX1); |
151 |
|
152 |
ADCSRB &= ~_BV(MUX5); |
153 |
|
154 |
return avg_ADC();
|
155 |
} |
156 |
|
157 |
int get_avg_voltage(void) |
158 |
{ |
159 |
int count=0; |
160 |
uint32_t sum=0;
|
161 |
|
162 |
//OCR1B =120;
|
163 |
while(count < AVG_COUNT)
|
164 |
{ |
165 |
sum += get_voltage(); |
166 |
count++; |
167 |
} |
168 |
|
169 |
return sum/AVG_COUNT;
|
170 |
} |
171 |
|
172 |
int get_avg_current(void) |
173 |
{ |
174 |
int count=0; |
175 |
uint32_t sum=0;
|
176 |
|
177 |
//OCR1B =120;
|
178 |
while(count < AVG_COUNT)
|
179 |
{ |
180 |
sum += get_current(); |
181 |
count++; |
182 |
} |
183 |
|
184 |
return sum/AVG_COUNT;
|
185 |
} |
186 |
|
187 |
int get_avg_temperature(void) |
188 |
{ |
189 |
int count=0; |
190 |
uint32_t sum=0;
|
191 |
|
192 |
//OCR1B =120;
|
193 |
while(count < AVG_COUNT)
|
194 |
{ |
195 |
sum += get_temperature(); |
196 |
count++; |
197 |
} |
198 |
|
199 |
return sum/AVG_COUNT;
|
200 |
} |
201 |
|
202 |
|
203 |
uint8_t supply_voltage(void)
|
204 |
{ |
205 |
return PINB & _BV(DETECT_12V);
|
206 |
} |
207 |
|
208 |
void clear_err(void) |
209 |
{ |
210 |
error=0;
|
211 |
PORTB &= ~(_BV(LED1)|_BV(LED2)); |
212 |
|
213 |
if(status==FAST_CHARGE)
|
214 |
PORTB |= _BV(LED2); |
215 |
|
216 |
if(status==TRICKLE_CHARGE)
|
217 |
PORTB |= _BV(LED1); |
218 |
} |
219 |
|
220 |
void wait_8th(void) |
221 |
{ |
222 |
uint8_t start = abs_time % 8;
|
223 |
|
224 |
while(abs_time % 8 == start) |
225 |
{ |
226 |
/*if(supply_voltage())
|
227 |
PORTB |= _BV(LED1);
|
228 |
else
|
229 |
PORTB &= ~_BV(LED1);
|
230 |
if(get_voltage()>100)
|
231 |
PORTB |= _BV(LED2);
|
232 |
else
|
233 |
PORTB &= ~_BV(LED2);*/
|
234 |
} |
235 |
} |
236 |
|
237 |
void send_err(void) |
238 |
{ |
239 |
OCR1B=0;//turn off the PWM to be safe |
240 |
|
241 |
PORTB &= ~(_BV(LED1)|_BV(LED2)); |
242 |
if(status!=0)//leave last error if there was one |
243 |
PORTA &= ~(_BV(debug_time)|_BV(debug_curr)|_BV(debug_volt)|_BV(debug_temp)|_BV(debug_12in)); |
244 |
error=1;
|
245 |
status=0;
|
246 |
} |
247 |
|
248 |
void send_done(void) |
249 |
{ |
250 |
|
251 |
#if use_I2C
|
252 |
char tempData;
|
253 |
//Finished, leave
|
254 |
tempData = 'F';
|
255 |
i2c_putpacket(0x01, &tempData, 1); |
256 |
#endif
|
257 |
|
258 |
PORTA &= ~(_BV(debug_time)|_BV(debug_curr)|_BV(debug_volt)|_BV(debug_temp)|_BV(debug_12in)); |
259 |
|
260 |
} |
261 |
|
262 |
void setup(void) |
263 |
{ |
264 |
DDRA = _BV(PA3); |
265 |
#if DEBUG
|
266 |
//DDRA = (_BV(debug_time)|_BV(debug_curr)|_BV(debug_volt)|_BV(debug_temp)|_BV(debug_12in));
|
267 |
#endif
|
268 |
PORTA = 0x00;
|
269 |
DDRB = (_BV(ROBOT_TX)|_BV(PWM)|_BV(LED1)|_BV(LED2)); //confiure output pins
|
270 |
PORTB = 0x00;
|
271 |
|
272 |
ADCSRA = (_BV(ADEN)|_BV(ADPS2)|_BV(ADPS1)); //start ADC with a division factor of 64
|
273 |
|
274 |
TCCR0B = (_BV(CS01)); //set timer 0 for realtime mode
|
275 |
TCCR0A = (_BV(TCW0)); |
276 |
TIMSK = (_BV(TOIE0)); //enable overflow interrupts
|
277 |
|
278 |
TCCR1A = (_BV(COM1B1)|_BV(PWM1B)|_BV(COM1A1)|_BV(PWM1A)); //clear timer 1 on compare, set at 0x00. Fast PWM mode
|
279 |
TCCR1B |= _BV(CS10); //leave timer on and set compare to 0 to make output off
|
280 |
|
281 |
//hack stuff so it will run in continuous mode
|
282 |
TIMSK |= _BV(TOIE1); //enable overflow interrupt for timer 1
|
283 |
|
284 |
OCR1B = 0;
|
285 |
OCR1A = 0;
|
286 |
|
287 |
|
288 |
RING_BUFFER_CLEAR(buffer); |
289 |
RING_BUFFER_INIT(buffer, 12);
|
290 |
for(int i=0;i<10;i++) |
291 |
RING_BUFFER_ADD(buffer, 0);
|
292 |
|
293 |
sei(); |
294 |
} |
295 |
|
296 |
|
297 |
|
298 |
|
299 |
//takes a 7-bit ionteger and displays it on the 7 LEDs with the Green being the MSB
|
300 |
void LED_out(int i) |
301 |
{ |
302 |
if(i & 64) |
303 |
PORTB |= _BV(LED1); |
304 |
else
|
305 |
PORTB &= ~_BV(LED1); |
306 |
|
307 |
if(i & 32) |
308 |
PORTB |= _BV(LED2); |
309 |
else
|
310 |
PORTB &= ~_BV(LED2); |
311 |
|
312 |
if(i & 16) |
313 |
PORTA |= _BV(PA3); |
314 |
else
|
315 |
PORTA &= ~_BV(PA3); |
316 |
|
317 |
if(i & 8) |
318 |
PORTA |= _BV(PA4); |
319 |
else
|
320 |
PORTA &= ~_BV(PA4); |
321 |
|
322 |
if(i & 4) |
323 |
PORTA |= _BV(PA5); |
324 |
else
|
325 |
PORTA &= ~_BV(PA5); |
326 |
|
327 |
if(i & 2) |
328 |
PORTA |= _BV(PA6); |
329 |
else
|
330 |
PORTA &= ~_BV(PA6); |
331 |
|
332 |
if(i & 1) |
333 |
PORTA |= _BV(PA7); |
334 |
else
|
335 |
PORTA &= ~_BV(debug_12in); |
336 |
} |
337 |
|
338 |
//get the difference of the current value minues the value 10 entires ago
|
339 |
int ring_buffer_d10(int y) |
340 |
{ |
341 |
int x;
|
342 |
RING_BUFFER_REMOVE(buffer, x); |
343 |
|
344 |
RING_BUFFER_ADD(buffer, y); |
345 |
return y-x;
|
346 |
} |
347 |
|
348 |
|
349 |
uint8_t read_homing() |
350 |
{ |
351 |
uint8_t ret = PINA & _BV(HOMING_PIN); |
352 |
if(ret)
|
353 |
PORTA |= _BV(PA3); |
354 |
else
|
355 |
PORTA &= ~_BV(PA3); |
356 |
return ret;
|
357 |
} |
358 |
|
359 |
//copied from scheduler/seeking.c
|
360 |
uint8_t get_delay(void)
|
361 |
{ |
362 |
uint8_t count = 0;
|
363 |
|
364 |
PORTB|=_BV(LED2); |
365 |
while(read_homing())
|
366 |
{ |
367 |
delay_ms(1);
|
368 |
count++; |
369 |
if (count >= 100) |
370 |
return 1; |
371 |
} //wait a beacon cycle to make sure we aren't starting the count in the middle of one
|
372 |
PORTB&=~_BV(LED2); |
373 |
count = 0;
|
374 |
PORTB|=_BV(LED1); |
375 |
while(!read_homing())
|
376 |
{ |
377 |
delay_ms(1);
|
378 |
count++; |
379 |
if(count==255) |
380 |
return 2; |
381 |
} |
382 |
PORTB&=~_BV(LED1); |
383 |
|
384 |
/*RECH_PUTS("\n\rCount: ");
|
385 |
RECH_PUTI(count);
|
386 |
RECH_PUTC('.');*/
|
387 |
|
388 |
return count;
|
389 |
} |
390 |
|
391 |
void trickle_charge(void) |
392 |
{ |
393 |
|
394 |
abs_time = 0;
|
395 |
status = 0;
|
396 |
char tempData[5]; |
397 |
char data[2]; |
398 |
data[0]='D'; |
399 |
int volt = 0; |
400 |
int temp = 0; |
401 |
int curr = 0; |
402 |
int meas_count = 0; |
403 |
int mod=0; |
404 |
OCR1B = 0;
|
405 |
|
406 |
PORTB &= ~(_BV(LED1)|_BV(LED2)); |
407 |
|
408 |
|
409 |
while(status!=2) |
410 |
{ |
411 |
mod=abs_time%4;
|
412 |
|
413 |
PORTB ^= _BV(LED2); |
414 |
|
415 |
if(supply_voltage())
|
416 |
while(abs_time%4==mod); |
417 |
|
418 |
/* TIME TERMINATION */
|
419 |
if(abs_time>12000) //12000=25 minutes |
420 |
{ |
421 |
//SEND_DONE
|
422 |
OCR1B=0;
|
423 |
break;
|
424 |
} |
425 |
|
426 |
#if DEBUG
|
427 |
tempData[0] = 'C'; |
428 |
tempData[1] = abs_time>>8; |
429 |
tempData[2] = abs_time&0xFF; |
430 |
i2c_putpacket(0x01, tempData, 3); |
431 |
#endif
|
432 |
|
433 |
mod=abs_time%4;
|
434 |
while(abs_time%4==mod) |
435 |
{ |
436 |
/* CONTACT */
|
437 |
if(supply_voltage())
|
438 |
{ |
439 |
PORTB |= _BV(LED1); |
440 |
//curr = regulate_current(500);
|
441 |
curr = get_avg_current(); |
442 |
|
443 |
if(status==0) |
444 |
{ |
445 |
status=1;
|
446 |
#if use_I2C
|
447 |
data[1]='a'; |
448 |
i2c_putpacket(0x01, data, 2); |
449 |
data[1]=I2C_MSG_BATTERY_CHARGING;
|
450 |
i2c_putpacket(0x01, data, 2); |
451 |
#endif
|
452 |
} |
453 |
|
454 |
/* Trickle Charge */
|
455 |
if(status==1) |
456 |
OCR1B = 128;
|
457 |
} |
458 |
/* NO CONTACT */
|
459 |
else
|
460 |
{ |
461 |
PORTB &= ~_BV(LED1); |
462 |
if(status==1) |
463 |
{ |
464 |
status=0;
|
465 |
#if use_I2C
|
466 |
data[1]=I2C_MSG_CONTACT_ERROR;
|
467 |
i2c_putpacket(0x01, data, 2); |
468 |
#endif
|
469 |
} |
470 |
else
|
471 |
{ |
472 |
/*get_delay(); //reject the first reading //homing import stuff, uncomment this!!!!!!
|
473 |
data[0]=I2C_MSG_HOMING;
|
474 |
data[1]=get_delay();
|
475 |
i2c_putpacket(0x01, data, 2);*/
|
476 |
|
477 |
data[0]='D'; |
478 |
} |
479 |
curr = 0;
|
480 |
OCR1B = 0;
|
481 |
} |
482 |
} |
483 |
|
484 |
#if DEBUG
|
485 |
tempData[0] = 'P'; |
486 |
tempData[1] = 0; |
487 |
tempData[2] = OCR1B;
|
488 |
i2c_putpacket(0x01, tempData, 3); |
489 |
tempData[0] = 'I'; |
490 |
tempData[1] = curr>>8; |
491 |
tempData[2] = curr&0xFF; |
492 |
i2c_putpacket(0x01, tempData, 3); |
493 |
#endif
|
494 |
curr=6666;
|
495 |
|
496 |
/* Absolute Voltage Termination */
|
497 |
if(supply_voltage())
|
498 |
{ |
499 |
mod=abs_time%4;
|
500 |
while(abs_time%4==mod) |
501 |
{ |
502 |
volt = get_avg_voltage(); |
503 |
} |
504 |
|
505 |
if(volt>1010) |
506 |
{ |
507 |
//SEND ERROR
|
508 |
status=0;
|
509 |
} |
510 |
|
511 |
#if DEBUG
|
512 |
tempData[0] = 'V'; |
513 |
tempData[1] = volt>>8; |
514 |
tempData[2] = volt&0xFF; |
515 |
i2c_putpacket(0x01, tempData, 3); |
516 |
#endif
|
517 |
volt=6666;
|
518 |
|
519 |
/* Absolute Temperature Termination */
|
520 |
mod=abs_time%4;
|
521 |
while(abs_time%4==mod) |
522 |
{ |
523 |
temp = get_avg_temperature(); |
524 |
} |
525 |
|
526 |
if(temp<250) |
527 |
{ |
528 |
//SEND ERROR
|
529 |
status=0;
|
530 |
} |
531 |
|
532 |
#if DEBUG
|
533 |
tempData[0] = 'T'; |
534 |
tempData[1] = temp>>8; |
535 |
tempData[2] = temp&0xFF; |
536 |
i2c_putpacket(0x01, tempData, 3); |
537 |
#endif
|
538 |
} |
539 |
|
540 |
temp=6666;
|
541 |
} |
542 |
#if use_I2C
|
543 |
data[1]=I2C_MSG_BATTERY_FULL;
|
544 |
i2c_putpacket(0x01, data, 2); |
545 |
#endif
|
546 |
} |
547 |
|
548 |
int main(void) |
549 |
{ |
550 |
new_second=0;
|
551 |
char tempData[5]; //For i2c communication |
552 |
|
553 |
setup(); |
554 |
|
555 |
#if use_I2C
|
556 |
i2c_init(); |
557 |
i2c_putpacket(0x01,"I2C init'd on ARCHS\r\n", 21); |
558 |
#endif
|
559 |
|
560 |
|
561 |
/*GIMSK = (_BV(PCIE0)); //enable PCINT interrupts
|
562 |
PCMSK1 = (_BV(PCINT10)); //enable pin change interrupt on ROBOT_RX
|
563 |
MCUCR = (_BV(SE)|_BV(SM1));// (power-down mode)
|
564 |
*/
|
565 |
|
566 |
OCR1B=0;
|
567 |
|
568 |
sei(); |
569 |
|
570 |
//test delay_ms
|
571 |
PORTB|=_BV(LED2); |
572 |
PORTB|=_BV(LED1); |
573 |
delay_ms(1000);
|
574 |
PORTB&=~_BV(LED2); |
575 |
PORTB&=~_BV(LED1); |
576 |
|
577 |
//*******************************
|
578 |
while(1) |
579 |
trickle_charge(); |
580 |
|
581 |
/*GIMSK = (_BV(PCIE0)); //enable PCINT interrupts
|
582 |
sleep_cpu();*/
|
583 |
|
584 |
PORTB=0;//clear outputs |
585 |
|
586 |
GIMSK = 0;
|
587 |
|
588 |
error=0;
|
589 |
|
590 |
i2c_init(); |
591 |
int volt=0, last_volt=0, same_volt=0; |
592 |
int temp=0, dt; |
593 |
int curr=0; |
594 |
int meas_count;
|
595 |
int mod=0; |
596 |
|
597 |
status=FAST_CHARGE; |
598 |
|
599 |
while(1) |
600 |
{ |
601 |
mod=abs_time%4;
|
602 |
while(abs_time%4==mod); |
603 |
|
604 |
/*if((abs_time>>3)%3==0)
|
605 |
OCR1B=21;
|
606 |
else if((abs_time>>3)%3==1)
|
607 |
OCR1B=57;
|
608 |
else
|
609 |
OCR1B=85;*/
|
610 |
|
611 |
tempData[0] = 'C'; |
612 |
tempData[1] = abs_time>>8; |
613 |
tempData[2] = abs_time&0xFF; |
614 |
i2c_putpacket(0x01, tempData, 3); |
615 |
|
616 |
mod=abs_time%4;
|
617 |
while(abs_time%4==mod) |
618 |
{ |
619 |
/* CONTACT */
|
620 |
if(supply_voltage())
|
621 |
{ |
622 |
//curr = regulate_current(500);
|
623 |
curr = get_avg_current(); |
624 |
|
625 |
if(status==FAST_CHARGE)
|
626 |
OCR1B=50;
|
627 |
} |
628 |
/* NO CONTACT */
|
629 |
else
|
630 |
{ |
631 |
curr = 0;
|
632 |
OCR1B = 0;
|
633 |
} |
634 |
} |
635 |
|
636 |
|
637 |
tempData[0] = 'P'; |
638 |
tempData[1] = 0; |
639 |
tempData[2] = OCR1B;
|
640 |
i2c_putpacket(0x01, tempData, 3); |
641 |
tempData[0] = 'I'; |
642 |
tempData[1] = curr>>8; |
643 |
tempData[2] = curr&0xFF; |
644 |
i2c_putpacket(0x01, tempData, 3); |
645 |
curr=6666;
|
646 |
|
647 |
mod=abs_time%4;
|
648 |
while(abs_time%4==mod) |
649 |
{ |
650 |
volt = get_avg_voltage(); |
651 |
} |
652 |
|
653 |
//Same volt - Last volt upkeep
|
654 |
if(volt==last_volt && supply_voltage())
|
655 |
same_volt++; |
656 |
else
|
657 |
{ |
658 |
last_volt = volt; |
659 |
same_volt=0;
|
660 |
} |
661 |
|
662 |
|
663 |
tempData[0] = 'v'; |
664 |
tempData[1] = same_volt>>8; |
665 |
tempData[2] = same_volt&0xFF; |
666 |
i2c_putpacket(0x01, tempData, 3); |
667 |
|
668 |
/* Voltage Dip Termination */
|
669 |
if(volt<last_volt && same_volt>=VOLT_PLATEAU)
|
670 |
{ |
671 |
OCR1B=0;
|
672 |
status=0;
|
673 |
} |
674 |
|
675 |
tempData[0] = 'V'; |
676 |
tempData[1] = volt>>8; |
677 |
tempData[2] = volt&0xFF; |
678 |
i2c_putpacket(0x01, tempData, 3); |
679 |
|
680 |
volt=6666;
|
681 |
|
682 |
//Temp ring buffer upkeep
|
683 |
mod=abs_time%4;
|
684 |
while(abs_time%4==mod) |
685 |
{ |
686 |
temp = get_avg_temperature(); |
687 |
} |
688 |
|
689 |
dt=ring_buffer_d10(temp); |
690 |
|
691 |
tempData[0] = 't'; |
692 |
tempData[1] = dt>>8; |
693 |
tempData[2] = dt&0xFF; |
694 |
i2c_putpacket(0x01, tempData, 3); |
695 |
|
696 |
/* Temperature Rise Termination */
|
697 |
if(dt < MAX_DT && temp < MAX_DT_ABS)
|
698 |
{ |
699 |
status=0;
|
700 |
OCR1B=0;
|
701 |
} |
702 |
|
703 |
tempData[0] = 'T'; |
704 |
tempData[1] = temp>>8; |
705 |
tempData[2] = temp&0xFF; |
706 |
i2c_putpacket(0x01, tempData, 3); |
707 |
|
708 |
temp=6666;
|
709 |
} |
710 |
|
711 |
|
712 |
return 1; |
713 |
} |
714 |
|
715 |
ISR(TIMER0_OVF_vect) |
716 |
{ |
717 |
if(error)
|
718 |
PORTB ^= (_BV(LED1)|_BV(LED2)); |
719 |
|
720 |
interrupt_count--; |
721 |
if(interrupt_count==0) |
722 |
{ |
723 |
abs_time++; |
724 |
new_second=1;
|
725 |
|
726 |
interrupt_count=INT_COUNT; |
727 |
} |
728 |
} |
729 |
|
730 |
ISR(TIMER1_OVF_vect) |
731 |
{ |
732 |
wait(2); //wait a bit so we know the ouput gets set (which happens at timer = 0) |
733 |
|
734 |
TCNT1 = 0;//156; // start out at 156. Now OCR1B - 156 = duty cycle |
735 |
} |
736 |
|
737 |
ISR(PCINT_vect){;} //so the interrupt doesnt go to the reset vector
|