/
main.c
852 lines (712 loc) · 18.6 KB
/
main.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
/*
* SHPI.zero Basic Firmware v2 BETA
*
*
*
* Basic Firmware for ATmega32u4 slave, no radio module support included
*
* Jul 15th, 2019 v 1.1b initial Version
* October 4th, 2019 v1.2 Beta
* NEW: implemented CRC Check via CRC8 CCITT
* Aug 28th, 2020 v2.0
*
*
*
*
* Author: Lutz Harder
* License: GNU GPL
*/
#define FW_VERSION 0x01
#define I2C_ADDR 0x2A
#define LCD_WRITE_DELAY 0.5
#define LCD_WAIT 100
#define ws2812_resettime 300
#define ws2812_port D
#define ws2812_pin 5
#define SDA_LINE (PIND & (1<<PD1))
#define SCL_LINE (PIND & (1<<PD0))
#include <util/crc16.h>
#include <avr/wdt.h>
#include <avr/power.h>
#include <avr/io.h>
#include <stdlib.h>
#include <util/delay.h>
#include <avr/interrupt.h>
#include <stdint.h>
#include <util/twi.h>
#include "light_ws2812.c"
#include "light_ws2812.h"
struct cRGB led[1];
uint8_t displaychange = 0, jumptobootloader = 0, watchdog = 0x00, display = 0xFF, led_position = 0, crc_active = 0xFF, commandbyte = 0xFF,twdrbuffer, buffer_address,a7count = 0,count,bllevel = 31,newbllevel = 31,changeled,crc,i2cerror = 0, fanlevel= 254;
uint16_t freeram,a0,a1,a2,a3,a4,a5,a7,a7avg,a7max,a7min,vcc,temp,rpm,fanspin,isrtimer,i2cbuffer = 0, watchi2c = 0;
uint16_t commands[] = // only for A035VW01
{
0x0080, 0x01F8, 0x0246, 0x0305, 0x0440, 0x0540, 0x0640,0x0740, 0x0840, 0x0940, 0x0A03
};
uint16_t commands2[]= // initcode for LCD A035VL01
{
0x0011,0x0000,0x0001,0x0000,0x00C1,0x01A8,0x01B1,0x0145,0x0104,0x0C5,0x0180,0x016C,0x0C6,
0x01BD,0x0184,0x00C7,0x01BD,0x0184,0x00BD,0x0102,0x0011,0x0000,0x00F2,0x0100,0x0100,0x0182,
0x0026,0x0108,0x00E0,0x0100,0x0104,0x0108,0x010B,0x010C,0x0111,0x010D,0x010E,0x0100,0x0104,
0x0108,0x0113,0x0114,0x012F,0x0129,0x0124,0x00E1,0x0100,0x0104,0x0108,0x010B,0x010C,0x0111,
0x010D,0x010E,0x0100,0x0104,0x0108,0x0113,0x0114,0x012F,0x0129,0x0124,0x0026,0x0108,0x00FD,
0x0100,0x0108,0x0029
};
// set single wire brightness AL3050
void write_backlight(uint8_t data)
{
uint8_t count = 8;
do
{
PORTD &= ~_BV(PD4);
_delay_us(50);
if (!(data & (1 << (count - 1))))
{
_delay_us(50);
}
PORTD |= _BV(PD4);
_delay_us(50);
if ((data & (1 << (count - 1))) != 0)
{
_delay_us(50);
}
count--;
} while (count);
PORTD &= ~_BV(PD4);
_delay_us(50);
PORTD |= _BV(PD4);
_delay_us(50);
}
void init_backlight(void) // init AL3050 single wire dimming
{
PORTD &= ~_BV(PD4);
_delay_us(3000);
PORTD |= _BV(PD4);
_delay_us(120);
PORTD &= ~_BV(PD4);
_delay_us(500);
PORTD |= _BV(PD4);
_delay_us(5);
bllevel = 31;
newbllevel = 31;
}
// write routine for LCD setup
void write_lcd(uint16_t data, uint8_t count)
{
PORTD &= ~_BV(PD4);
do
{
PORTB &= ~_BV(PB2); // BITWISE AND -> PB2
PORTB |= (((data & (1 << (count - 1))) != 0) << 2);
PORTB &= ~_BV(PB1);
_delay_us(LCD_WRITE_DELAY);
PORTB |= _BV(PB1);
_delay_us(LCD_WRITE_DELAY);
count--;
} while (count);
PORTB &= ~_BV(PB2);
PORTD |= _BV(PD4);
_delay_us(LCD_WRITE_DELAY);
}
void setup_lcd(void)
{
PORTD |= _BV(PD4);
_delay_us(5);
for (int x = 0; x < 11; x++)
{
write_lcd(commands[x], 16);
} //only for A035VW01
for (int x = 0; x < (sizeof(commands2) / sizeof(uint16_t)); x++)
{
if (commands2[x] == 0x0000)
{
_delay_ms(LCD_WAIT);
continue;
}
write_lcd(commands2[x], 9);
} //only for A035VL01
}
uint16_t read_analog(uint8_t channel)
{
uint8_t low, high;
ADCSRA |= _BV(ADPS2) | _BV(ADPS1) | _BV(ADPS0);
ADCSRB = 0x40;
ADMUX = ((0 << REFS1) | (1 << REFS0) | (0 << ADLAR));
if (channel >= 8) //
{
channel -= 0x08; //ch - 8
ADCSRB |= (1 << MUX5); // set MUX5 on ADCSRB to read upper bit ADC8-ADC13
}
else
{
ADCSRB &= ~(1 << MUX5); // clear MUX 5
}
channel &= 0x07;
ADMUX |= channel; // selecting channel
ADCSRA |= _BV(ADEN);
_delay_ms(2);
ADCSRA |= (1 << ADSC);
while ((ADCSRA & _BV(ADSC)));// measuring
low = ADCL;
high = ADCH;
return (high << 8) | low;
}
uint16_t readVcc(void)
{
ADMUX = _BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
ADCSRA |= _BV(ADEN);
ADCSRB &= ~_BV(MUX5);
_delay_ms(2);
ADCSRA |= 1 << ADSC;
while ((ADCSRA & _BV(ADSC)));// measuring
ADCSRA |= 1 << ADSC;
while ((ADCSRA & _BV(ADSC)));
return 1125300L / (ADCL | (ADCH<<8));
}
uint16_t GetTemp(void)
{
// Set internal V reference, temperature reading
ADMUX = _BV(REFS1) | _BV(REFS0) | 7;
ADCSRB = 0x20; // ref 24.6
// Clear auto trigger and interrupt enable
ADCSRA &= ~(_BV(ADATE) | _BV(ADIE));
ADCSRA |= _BV(ADEN); // enable the ADC
_delay_ms(2); // delay for voltages to become stable.
ADCSRA |= _BV(ADSC); // measuring
while ((ADCSRA & _BV(ADSC)));
ADCSRA |= _BV(ADSC);
while ((ADCSRA & _BV(ADSC)));
return (ADCL | (ADCH << 8));
}
uint16_t freeRam(void)
{
extern char __heap_start, * __brkval;
int v;
return (uint16_t) & v - (__brkval == 0 ? (int) & __heap_start : (int) __brkval);
}
void I2C_init(uint8_t address) // setup ATmega as I2C slave
{
cli();
TWAR = (address << 1);
TWCR = (1 << TWEN) | // TWI Interface enabled.
(1 << TWIE) | (1 << TWINT) |// Enable TWI Interupt and clear the flag.
// Prepare to ACK next time the Slave is addressed.
(1 << TWEA) | (0 << TWSTA) | (0 << TWSTO) |
(0 << TWWC);
buffer_address = 0xFF;
}
ISR(PCINT0_vect)
{
if (bit_is_clear(PINB, PB0)) fanspin++;
} // counting VENT_RPM
ISR(TIMER0_OVF_vect)
{
isrtimer++;
} // reuse timer0 for counting VENT_RPM
ISR(TWI_vect)
{
switch (TW_STATUS)
{
case TW_SR_SLA_ACK:
//_delay_us(3);
TWCR = (1 << TWIE) | (1 << TWINT) | (1 << TWEA) | (1 << TWEN);
// set buffer pos undefined
buffer_address = 0xFF;
break;
case TW_SR_DATA_ACK: // received data from master
//_delay_us(3);
if (buffer_address == 0xFF)
{
commandbyte = TWDR;
crc = _crc8_ccitt_update(0, commandbyte);
buffer_address = 0;
i2cerror = 0;
switch (commandbyte)
{
case 0x00: i2cbuffer = a0; break;
case 0x01: i2cbuffer = a1; break;
case 0x02: i2cbuffer = a2; break;
case 0x03: i2cbuffer = a3; break;
case 0x04: i2cbuffer = a4; break;
case 0x05: i2cbuffer = a5; break;
case 0x06: i2cbuffer = a7; break;
case 0x08: i2cbuffer = rpm;break;
case 0x09: i2cbuffer = vcc; break;
case 0x0A: i2cbuffer = temp;break;
case 0x0B: i2cbuffer = freeram; break;
case 0x17: i2cbuffer = a7avg; break;
}
}
else
{
if (buffer_address == 0)
{
twdrbuffer = TWDR;
if (commandbyte == 0xFE) crc_active = twdrbuffer;
crc = _crc8_ccitt_update(crc,TWDR);
}
if ((crc_active && (buffer_address == 1) && (TWDR == crc)) || (!crc_active && buffer_address == 0) )
{
switch(commandbyte) {
case 0x87: newbllevel = twdrbuffer; break;
// switch display controller on off
case 0x98:
displaychange = 1; if (twdrbuffer == 0xFF)
{
write_lcd(0x0A03,16); /* A035VL01: write_lcd(0x029,9); */ display = 0xFF;
}
else
{
write_lcd(0x0A02,16); /* A035VL01: write_lcd(0x028,9); */ display = 0x00;
}
break;
// display white / black
case 0x99:
displaychange = 1; if (twdrbuffer == 0xFF)
{
write_lcd(0x023,9);
}
else if (twdrbuffer == 0x00)
{
write_lcd(0x022,9);
}
else
{
write_lcd(0x013,16);
}
break;
//set Relais 1
case 0x8D:
if (twdrbuffer == 0xFF)
{
PORTC |= _BV(PC6);
}
else
{
PORTC &= ~_BV(PC6);
}
break;
//set Relais 2
case 0x8E:
if (twdrbuffer == 0xFF)
{
PORTB |= _BV(PB4);
}
else
{
PORTB &= ~_BV(PB4);
}
break;
//set Relais 3
case 0x8F:
if (twdrbuffer == 0xFF)
{
PORTB |= _BV(PB6);
}
else
{
PORTB &= ~_BV(PB6);
}
break;
//set D13
case 0x90:
if (twdrbuffer == 0xFF)
{
PORTC |= _BV(PC7);
}
else
{
PORTC &= ~_BV(PC7);
}
break;
//set HWB ->Gasheater (D13 on prototypes)
case 0x91:
if (twdrbuffer == 0x00)
{
PORTE |= (1<<2);
}
else
{
PORTE &= ~(1<<2);
}
break;
//set Buzzer
case 0x92:
if (twdrbuffer == 0xFF)
{
PORTB |= _BV(PB5);
}
else if (twdrbuffer == 0x01)
{
PORTB |= _BV(PB5); twdrbuffer = 0x02;
}
else
{
PORTB &= ~_BV(PB5);twdrbuffer = 0x00;
}
break;
//set Vent
case 0x93:
OCR0A = twdrbuffer; fanlevel = twdrbuffer;
break;
//set r color
case 0x94:
led[led_position].r = twdrbuffer;changeled = 1;
break;
//set g color
case 0x95:
led[led_position].g = twdrbuffer;changeled = 1;
break;
//set b color
case 0x96:
led[led_position].b = twdrbuffer;changeled = 1;
break;
//jump to bootloader
case 0xFD:
if (twdrbuffer == 0xFF) jumptobootloader = 1;
break;
case 0xA1: led_position = twdrbuffer; break;
case 0xA0: watchdog = twdrbuffer; break;
default: i2cerror++;
}
}
else {i2cerror++;}
buffer_address++;
}
TWCR = (1<<TWIE) | (1<<TWINT) | (1<<TWEA) | (1<<TWEN);
if ((commandbyte == 0x92) & (twdrbuffer == 0x02)) {_delay_us(25); PORTB &= ~_BV(PB5);}
break;
case TW_ST_SLA_ACK: // slave adressed
case TW_ST_DATA_ACK:
switch(commandbyte)
{
case 0x87:
case 0x8D:
case 0x8E:
case 0x8F:
case 0x90:
case 0x91:
case 0x92:
case 0x93:
case 0x94:
case 0x95:
case 0xA1:
case 0XA0:
case 0x96: { TWDR = crc; crc = 0xFF;}
break;
case 0x18:
if (buffer_address == 0) {TWDR = display; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x20:
if (buffer_address == 0) {TWDR = watchdog; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x21:
if (buffer_address == 0) {TWDR = led_position; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x14:
if (buffer_address == 0) {TWDR = led[led_position].r; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x15:
if (buffer_address == 0) {TWDR = led[led_position].g; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x16:
if (buffer_address == 0) {TWDR = led[led_position].b; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x06:
case 0x08:
case 0x09:
case 0x0A:
case 0x0B:
case 0x17:
if (buffer_address == 0) {TWDR = i2cbuffer & 0xFF; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = i2cbuffer >> 8; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 2) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x0C:
if (buffer_address == 0) {TWDR = led[led_position].r; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = led[led_position].g; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 2) {TWDR = led[led_position].b; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 3) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x0D:
if (buffer_address == 0)
{
if (bit_is_set(PINC,PC6))
{
TWDR = 0xFF;
}
else
{
TWDR = 0x00;
}
crc = _crc8_ccitt_update(crc,TWDR);
}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x0E:
if (buffer_address == 0)
{
if (bit_is_set(PINB,PB4))
{
TWDR = 0xFF;
}
else
{
TWDR = 0x00;
}
crc = _crc8_ccitt_update(crc,TWDR);
}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x0F:
if (buffer_address == 0)
{
if (bit_is_set(PINB,PB6))
{
TWDR = 0xFF;
}
else
{
TWDR = 0x00;
}
crc = _crc8_ccitt_update(crc,TWDR);
}
else if (buffer_address == 1) { TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x10:
if (buffer_address == 0)
{
if (bit_is_set(PINC,PC7))
{
TWDR = 0xFF;
}
else
{
TWDR = 0x00;
}
crc = _crc8_ccitt_update(crc,TWDR);
}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x11:
if (buffer_address == 0)
{
if (bit_is_set(PINE,PE2))
{
TWDR = 0x00;
}
else
{
TWDR = 0xff;
}
crc = _crc8_ccitt_update(crc,TWDR);
}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; buffer_address = 0xFE; i2cerror++;}
break;
case 0x12:
if (buffer_address == 0)
{
if (bit_is_set(PINB,PB5))
{
TWDR = 0xFF;
}
else
{
TWDR = 0x00;
}
crc = _crc8_ccitt_update(crc,TWDR);
}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x13:
if (buffer_address == 0) {TWDR = fanlevel; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x7E:
if (buffer_address == 0) {TWDR = crc_active; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x7F:
if (buffer_address == 0) {TWDR = FW_VERSION; crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
case 0x07:
if (buffer_address == 0) {TWDR = bllevel; if (crc_active) crc = _crc8_ccitt_update(crc,TWDR);}
else if (buffer_address == 1) {TWDR = crc;}
else {TWDR = 0xFF; i2cerror++;}
break;
default: TWDR = 0xFF;
}
_delay_us(10);
buffer_address++;
TWCR = (1<<TWIE) | (1<<TWINT) | (1<<TWEA) | (1<<TWEN);
break;
case TW_BUS_ERROR:
TWCR = (1<<TWSTO)|(1<<TWIE) | (1<<TWINT) | (1<<TWEA) | (1<<TWEN);
break;
default: TWCR = (1<<TWEN)|(1<<TWIE)|(1<<TWINT)| (1<<TWEA)|(0<<TWSTA)|(0<<TWSTO)| (0<<TWWC);
}
}
void setup(void)
{
DDRF = 0b00000000;
DDRD = 0b01111011;
PORTD= 0b00000000;
DDRE = 0b00000000; // DDRE |= (1<<2); be carefull with hwb, check if its connected to GND via 10k (prototypes!)
DDRB = 0b11110110;
DDRC = 0b11000000;
OCR0A = 0; // start value for FAN 0 / 255 (-> p-channel so inverted) 0x00 is ON 0xFF is OFF
TCCR0B = 0b00000001;
TCCR0A = 0b10000011; // 8bit 62khz
TIMSK0 |= (1 << TOIE0); // init interrupt for timer0 overflow
clock_prescale_set(clock_div_1);
_delay_ms(100);
I2C_init(I2C_ADDR);
PCICR |= _BV(PCIE0); // enable pin change interrupt for PB0 (rpm)
PCMSK0 |= _BV(PCINT0);
sei();
led[0].r = 255;
led[0].g = 255;
led[0].b = 255;
ws2812_setleds(led,2);
setup_lcd();
init_backlight();
led[0].r = 0;
led[0].g = 0;
led[0].b = 0;
ws2812_setleds(led,1);
OCR0A = 210;
wdt_enable(WDTO_8S);
}
int main(void)
{
uint8_t adcselect = 0;
setup();
while(1)
{
if (jumptobootloader > 0)
{
TWCR = (1<<TWSTO)|(1<<TWIE) | (1<<TWINT) | (1<<TWEA) | (0<<TWEN);
cli();
wdt_disable();
UDCON = 1;
USBCON = (1<<FRZCLK);// disable USB
UCSR1B = 0;
_delay_ms(50);
EIMSK = 0; PCICR = 0; SPCR = 0; ACSR = 0; EECR = 0; ADCSRA = 0;
TIMSK0 = 0; TIMSK1 = 0; TIMSK3 = 0; TIMSK4 = 0; UCSR1B = 0; TWCR = 0;
DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0; TWCR = 0;
PORTB = 0; PORTC = 0; PORTD = 0; PORTE = 0; PORTF = 0;
asm volatile("jmp 0x7000");
}
if (watchdog == 0x01)
{
if (SCL_LINE)
{
watchi2c++;
}
else
{
watchi2c = 0;led[0].r=0; led[0].g=0;led[0].b=0; ws2812_setleds(led,1);
}
if (watchi2c > 10000) {led[0].r=255; led[0].g=255;led[0].b=0; ws2812_setleds(led,1);}
}
if (!SDA_LINE) {i2cerror++;}
if (i2cerror > 100)
{
TWCR = (1<<TWSTO)|(1<<TWIE) | (1<<TWINT) | (1<<TWEA) | (0<<TWEN);
I2C_init(I2C_ADDR);
i2cerror = 0;
sei();
}
wdt_reset();
if (isrtimer > 31250) // routine for calculate fan speed - timer is 64khz
{ // 2 signals each turn
rpm = fanspin * 30;
fanspin = 0;
isrtimer = 0;
if (fanlevel == 254) //fan minimal auto
{
if (rpm > 1950) {OCR0A++;}
if (rpm < 1800) {OCR0A--;}
}
}
if (displaychange) {init_backlight(); displaychange = 0;}
if (changeled)
{
ws2812_setleds(led,led_position+1);
changeled = 0;
}
if (newbllevel != bllevel && 0 <= newbllevel && newbllevel < 32)
{
if (newbllevel < bllevel)
{
bllevel--;
}
else
{
bllevel++;
}
write_backlight(0b01011000);
write_backlight(0b00011111 & bllevel);
}
if (adcselect < 10)
{
adcselect++;
}
else
{
adcselect = 0;
}
switch(adcselect)
{
case 0: a0 = read_analog(7); break;
case 1: a1 = read_analog(6); break;
case 2: a2 = read_analog(5); break;
case 4: a3 = read_analog(4); break;
case 5: a4 = read_analog(1); break;
case 7: a5 = read_analog(0); break;
case 8: vcc = readVcc(); break;
case 9: freeram = freeRam(); break;
case 10: temp = GetTemp(); break;
default: //read A7 more frequently
{
a7 = read_analog(10);
if (a7 > a7max) a7max = a7;
if (a7 < a7min) a7min = a7;
a7count++;
if (a7count > 60) {a7avg = (a7max - ((a7max + a7min)/ 2)) * 0.707 ; a7min = 1024; a7max = 0; a7count = 0;}
break;
}
}
}
}