349736ee416c8b82b165bcd79cbfa692c1e46045
[owSlave2.git] / DS2438_SHT2X / DS2438_SHT2X.c
1 // Copyright (c) 2017, Tobias Mueller tm(at)tm3d.de\r
2 // All rights reserved.\r
3 //\r
4 // Redistribution and use in source and binary forms, with or without\r
5 // modification, are permitted provided that the following conditions are\r
6 // met:\r
7 //\r
8 //  * Redistributions of source code must retain the above copyright\r
9 //    notice, this list of conditions and the following disclaimer.\r
10 //  * Redistributions in binary form must reproduce the above copyright\r
11 //    notice, this list of conditions and the following disclaimer in the\r
12 //    documentation and/or other materials provided with the\r
13 //    distribution.\r
14 //  * All advertising materials mentioning features or use of this\r
15 //    software must display the following acknowledgement: This product\r
16 //    includes software developed by tm3d.de and its contributors.\r
17 //  * Neither the name of tm3d.de nor the names of its contributors may\r
18 //    be used to endorse or promote products derived from this software\r
19 //    without specific prior written permission.\r
20 //\r
21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\r
22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\r
23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\r
24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\r
25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\r
26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\r
27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\r
28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\r
29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\r
31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
32 \r
33 \r
34 #define F_CPU 8000000UL\r
35 #include <avr/io.h>\r
36 #include <avr/interrupt.h>\r
37 #include <util/delay.h>\r
38 #include <avr/wdt.h>\r
39 #include <avr/sleep.h>\r
40 #include <avr/pgmspace.h>\r
41 #include "../common/I2C/USI_TWI_Master.h"\r
42 #include "../common/I2C/SHT2xV2.h"\r
43 #include "../common/calibr.h"\r
44 \r
45 extern void OWINIT();\r
46 extern void EXTERN_SLEEP();\r
47 \r
48 uint8_t owid[8]={0x26, 0xA2, 0xD9, 0x84, 0x00, 0x00, 0x05, 0x16};/**/\r
49 uint8_t config_info[26]={0x01,0x06, 0x05,0x08, 0x04,0x07, 0x00,0x00, 0x02,0x07,0x00,0x07,0x00,0x00,0x00,0x00, 0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};\r
50         \r
51 \r
52 extern uint8_t mode;\r
53 extern uint8_t gcontrol;\r
54 extern uint8_t reset_indicator;\r
55 extern uint8_t alarmflag;\r
56 \r
57 volatile uint8_t wdcounter=5;\r
58 \r
59 \r
60 typedef union {\r
61 \r
62         volatile uint8_t bytes[64];\r
63         struct {\r
64                 uint8_t status;  //1\r
65                 int16_t temp;  //2\r
66                 uint16_t voltage;  //4\r
67                 uint16_t current;  //6\r
68                 uint8_t threshold; //8\r
69                 \r
70                 uint8_t page1[8]; //9\r
71                 uint8_t page2[8]; //17\r
72                 uint8_t page3[8]; //25\r
73                 uint8_t page4[8];  //33\r
74                 uint8_t page5[8];  //41\r
75                 uint8_t page6[8];  //49\r
76                 uint8_t page7[8];  //57\r
77                 //uint8_t crc;  //65\r
78         };\r
79 } pack_t;\r
80 volatile pack_t pack;\r
81 \r
82 \r
83 \r
84 volatile int16_t am2302_temp;\r
85 volatile uint16_t am2302_hum;\r
86 \r
87 uint8_t userRegister[1];\r
88 double temperatureC,humidityRH;\r
89 volatile double l;\r
90 \r
91 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)\r
92 ISR(WATCHDOG_vect) {\r
93 #else\r
94 ISR(WDT_vect) {\r
95 #endif \r
96         wdcounter++;\r
97         if (reset_indicator==1) reset_indicator++;\r
98         else if (reset_indicator==2) mode=0;\r
99 \r
100 \r
101 }\r
102 \r
103 int testSW(void) {\r
104         uint8_t r;\r
105         DDRB&=~(1<<PORTB0);  //Eingang\r
106          __asm__ __volatile__ ("nop"); \r
107          PORTB|=(1<<PORTB0); //Pullup\r
108          __asm__ __volatile__ ("nop"); \r
109          __asm__ __volatile__ ("nop"); \r
110          __asm__ __volatile__ ("nop"); \r
111          __asm__ __volatile__ ("nop"); \r
112          __asm__ __volatile__ ("nop"); \r
113          r=PINB&(1<<PORTB0);\r
114          __asm__ __volatile__ ("nop"); \r
115          PORTB&=~(1<<PORTB0); \r
116          __asm__ __volatile__ ("nop"); \r
117         DDRB|=(1<<PORTB0);  //Eingang\r
118         return (r==0);\r
119          \r
120          \r
121 }\r
122 \r
123 int main(void){\r
124      PRR|=(1<<PRADC);  // adc for save Power\r
125         PORTA=0xFF;\r
126         PORTB=0xFF-(1<<PORTB0); //Schalter kann gegen Masse sein und zieht dann immer Strom\r
127         DDRB|=(1<<PORTB0); //Als Ausgang und 0\r
128         \r
129         \r
130         OWINIT();\r
131 \r
132         ACSR|=(1<<ACD);  //Disable Comparator\r
133         ADCSRB|=(1<<ACME); //Disable Analog multiplexer\r
134         MCUCR &=~(1<<PUD); //All Pins Pullup...\r
135         MCUCR |=(1<<BODS);\r
136 \r
137         \r
138         WDTCSR |= ((1<<WDCE) );   // Enable the WD Change Bit//| (1<<WDE)\r
139         WDTCSR |=   (1<<WDIE) |              // Enable WDT Interrupt\r
140         (1<<WDP3) | (1<<WDP0);   // Set Timeout to ~8 seconds\r
141          if (testSW()) {\r
142                 config_info[5]=8;\r
143         }else{\r
144                 config_info[5]=7;\r
145          }\r
146         \r
147     uint8_t i;\r
148     for(i=0;i<64;i++) pack.bytes[i]=0;\r
149         pack.page3[0]=0xF1;\r
150         MCUSR=0;\r
151         USI_TWI_Master_Initialise();\r
152         initSHT2x();\r
153         _delay_ms(100);\r
154         sei();\r
155         \r
156          while(1)   { \r
157                  if (gcontrol) {\r
158                          wdcounter=3;\r
159                          gcontrol=0;\r
160                  }\r
161                  if (wdcounter>2) {\r
162                          getSHT2xHumTemp(&temperatureC,&humidityRH);\r
163                          double RH = humidityRH*10.0;//calibr_hum(temperatureC,-0.2,humidityRH)*10.0;\r
164                          double T=temperatureC;//-0.2;\r
165                          T*=10.0;\r
166                          if (testSW()) {\r
167                                  am2302_hum= RH;\r
168                                  am2302_temp=T*25.6;\r
169                                  config_info[5]=12;     \r
170                                  \r
171                          }else{\r
172                                  \r
173                                 double hhum=(1.0546-0.000216*T)*(RH);\r
174                                 //am2302_hum=0.318*hhum +76.0;\r
175                                 am2302_hum=0.31*hhum +80;\r
176                                 am2302_temp=T*25.6;\r
177                                 //am2302_temp=am2302_temp-45;\r
178                                 config_info[5]=7;\r
179                          }\r
180                          //PORTB&=~(1<<PINB1);\r
181                          wdcounter=0;\r
182                  }\r
183 \r
184                 if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))       {\r
185                         MCUCR|=(1<<SE)|(1<<SM1);\r
186                         MCUCR&=~(1<<ISC01);\r
187                 } else {\r
188                         MCUCR|=(1<<SE);\r
189                         MCUCR&=~(1<<SM1);\r
190                 }\r
191                 asm("SLEEP");\r
192         }\r
193 \r
194 \r
195 }