12e682be9aa1dc55fd756071ac28fe3ebdcf9c4f
[owSlave2.git] / DS18B20_MAX44009 / DS18B20.c
1
2 // Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
3 // All rights reserved.
4 //
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are
7 // met:
8 //
9 //  * Redistributions of source code must retain the above copyright
10 //    notice, this list of conditions and the following disclaimer.
11 //  * Redistributions in binary form must reproduce the above copyright
12 //    notice, this list of conditions and the following disclaimer in the
13 //    documentation and/or other materials provided with the
14 //    distribution.
15 //  * All advertising materials mentioning features or use of this
16 //    software must display the following acknowledgement: This product
17 //    includes software developed by tm3d.de and its contributors.
18 //  * Neither the name of tm3d.de nor the names of its contributors may
19 //    be used to endorse or promote products derived from this software
20 //    without specific prior written permission.
21 //
22 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33
34 #define F_CPU 8000000UL
35 #include <avr/io.h>
36 #include <avr/interrupt.h>
37 #include <util/delay.h>
38 #include <avr/wdt.h>
39 #include <avr/sleep.h>
40 #include <avr/pgmspace.h>
41 #include "../common/I2C/USI_TWI_Master.h"
42 #include "../common/I2C/MAX44009.h"
43
44
45 extern void OWINIT();
46
47
48
49
50 uint8_t owid[8]={0x28, 0xA2, 0xD9, 0x84, 0x00, 0x16, 0x77, 0x6B};/**/
51         
52 #if (owid>128) 
53 #error "Variable not correct"
54 #endif
55
56 extern uint8_t mode;
57 extern uint8_t gcontrol;
58 extern uint8_t reset_indicator;
59 extern uint8_t alarmflag;
60
61
62
63
64 typedef union {
65         volatile uint8_t bytes[8];
66         struct {
67                 uint16_t temp;  //0
68                 uint8_t TH;  //2
69                 uint8_t TL;  //3
70                 uint8_t config;  //4
71                 uint8_t rrFF; //5
72                 uint8_t rr00; //6
73                 uint8_t rr10; //7
74         };
75 } pack_t;
76 volatile pack_t pack;
77
78
79
80
81
82
83
84
85 int main(void){
86     PRR|=(1<<PRADC);  // adc for save Power
87         pack.temp=0x0550;
88         pack.config=0x7F;
89         pack.TH=75;
90         pack.TL=70;
91         pack.rrFF=0xFF;
92         pack.rr00=0;
93         pack.rr10=0x10;
94         PORTA=0xFF;
95         PORTB=0xFF;
96         OWINIT();
97
98         MCUCR &=~(1<<PUD); //All Pins Pullup...
99         MCUCR |=(1<<BODS);
100
101         MCUSR=0;
102         USI_TWI_Master_Initialise();
103         
104         
105         gcontrol=1;
106         sei();
107     while(1)   {
108         
109                 if (gcontrol) {
110                         volatile double l=MAX44009getlux();             
111                         if (l<0.030) l=0.030; //Darf nicht 0 sein. minimum -35°C Sensor minimum 0.045
112                         //double l=1000;
113                         l=log(l)*10*16;
114                         uint16_t w=l;
115                         uint8_t t8=w>>4;
116                         uint8_t af=0;
117                         if (t8>pack.TH) af=1;
118                         if (t8<=pack.TL) af=1; 
119                         cli();
120                         pack.temp=w;
121                         //pack.temp++;
122                         alarmflag=af;
123                         sei();                  
124                         gcontrol=0;
125                 }
126
127                 
128 #if  defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__)  || defined(__AVR_ATtiny85__)
129                         if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))
130 #endif                  
131 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) ||defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)
132                         if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))
133 #endif
134                           {
135
136                         MCUCR|=(1<<SE)|(1<<SM1);
137                         MCUCR&=~(1<<ISC01);
138                 } else {
139                         MCUCR|=(1<<SE);
140                         MCUCR&=~(1<<SM1);
141                 }
142                 //MCUCR&=~(1<<ISC01);
143                 asm("SLEEP");
144    }
145
146
147 }