DS18B20_CDM7160/DS18B20_CDM7160.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 #define F_CPU 8000000UL\r
  34 #include <avr/io.h>\r
  35 #include <avr/interrupt.h>\r
  36 #include <util/delay.h>\r
  37 #include <avr/wdt.h>\r
  38 #include <avr/sleep.h>\r
  39 #include <avr/pgmspace.h>\r
  40 #include "../common/I2C/USI_TWI_Master.h"\r
  41 #include "../common/I2C/CDM7160.h"\r
  42 \r
  43 \r
  44 extern void OWINIT();\r
  45 \r
  46 extern void EXTERN_SLEEP();\r
  47 \r
  48 \r
  49 uint8_t owid[8]={0x28, 0xA2, 0xD9, 0x84, 0x00, 0x16, 0x77, 0x6B};/**/\r
  50 uint8_t config_info[26]={10,21, 0x00,0x00, 0x00,0x00, 0x00,0x00, 0x02,16,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};\r
  51         \r
  52 #if (owid>128) \r
  53 #error "Variable not correct"\r
  54 #endif\r
  55 \r
  56 extern uint8_t mode;\r
  57 extern uint8_t gcontrol;\r
  58 extern uint8_t reset_indicator;\r
  59 extern uint8_t alarmflag;\r
  60 volatile uint8_t wdcounter=5;\r
  61 \r
  62 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)\r
  63 ISR(WATCHDOG_vect) {\r
  64 #else\r
  65 ISR(WDT_vect) {\r
  66 #endif \r
  67         wdcounter++;\r
  68         if (reset_indicator==1) reset_indicator++;\r
  69         else if (reset_indicator==2) mode=0;\r
  70 \r
  71 \r
  72 }\r
  73 \r
  74 uint8_t max_adr=0;\r
  75 \r
  76 typedef union {\r
  77         volatile uint8_t bytes[8];\r
  78         struct {\r
  79                 int16_t temp;  //0\r
  80                 uint8_t TH;  //2\r
  81                 uint8_t TL;  //3\r
  82                 uint8_t config;  //4\r
  83                 uint8_t rrFF; //5\r
  84                 uint8_t rr00; //6\r
  85                 uint8_t rr10; //7\r
  86         };\r
  87 } pack_t;\r
  88 volatile pack_t pack;\r
  89 \r
  90 \r
  91 \r
  92 \r
  93 \r
  94 \r
  95 \r
  96 \r
  97 int main(void){\r
  98         PORTB&=~(1<<PINB1);\r
  99         DDRB|=(1<<PINB1);\r
 100     PRR|=(1<<PRADC);  // adc for save Power\r
 101         pack.temp=0x0550;\r
 102         pack.config=0x7F;\r
 103         pack.TH=75;\r
 104         pack.TL=70;\r
 105         pack.rrFF=0xFF;\r
 106         pack.rr00=0;\r
 107         pack.rr10=0x10;\r
 108         PORTA=0xFF;\r
 109         PORTB=0xFF;\r
 110         OWINIT();\r
 111         PORTB&=~(1<<PINB1);\r
 112         DDRB|=(1<<PINB1);\r
 113         \r
 114 \r
 115         PORTA&=~(1<<PINA0);\r
 116 \r
 117         MCUCR &=~(1<<PUD); //All Pins Pullup...\r
 118         MCUCR |=(1<<BODS);\r
 119 \r
 120         WDTCSR |= ((1<<WDCE) );   // Enable the WD Change Bit//| (1<<WDE)\r
 121         WDTCSR |=   (1<<WDIE) |              // Enable WDT Interrupt\r
 122         (1<<WDP3) | (1<<WDP0);   // Set Timeout to ~8 seconds\r
 123 \r
 124         MCUSR=0;\r
 125         _delay_ms(100);\r
 126         USI_TWI_Master_Initialise();\r
 127         CDM7160softReset();\r
 128         _delay_ms(200);\r
 129         \r
 130         CDM7160setMode(0); //Power Down Mode\r
 131         _delay_ms(200);\r
 132         CDM7160setAvCount(0x3F);\r
 133         CDM7160setFMode(1);\r
 134         pack.temp=CDM7160getCO2();\r
 135         CDM7160setMode(1);\r
 136         _delay_ms(200);\r
 137         gcontrol=1;\r
 138         //DDRB|=(1<<PINB1);\r
 139         //while (1)                     {volatile double l=CDM7160getCO2();}\r
 140 \r
 141         sei();\r
 142         #define PBR 1\r
 143     while(1)   {\r
 144         \r
 145                 if (gcontrol) {\r
 146                         if (wdcounter<PBR)      wdcounter=PBR;\r
 147                         gcontrol=0;\r
 148                 }\r
 149                 if ( wdcounter==PBR) {\r
 150                         //CDM7160setMode(1);\r
 151                 }\r
 152                 if (wdcounter>(PBR+1)) {\r
 153                         wdcounter=0;\r
 154                         //PORTB|=(1<<PINB1); //Dauer 2.3ms\r
 155                         volatile int16_t l=(int16_t)CDM7160getCO2()-1280;       \r
 156                         int16_t w=l;\r
 157                         int8_t t8=w/16;\r
 158                         int8_t af=0;\r
 159                         if (t8>pack.TH) af=1;\r
 160                         if (t8<=pack.TL) af=1; \r
 161                         cli();\r
 162                         pack.temp=w;\r
 163                         //pack.temp++;\r
 164                         alarmflag=af;\r
 165                         sei();  \r
 166                         //CDM7160setMode(0);\r
 167                         EXTERN_SLEEP();         \r
 168                         //PORTB&=~(1<<PINB1);\r
 169                                         \r
 170                 }\r
 171 \r
 172                 \r
 173 #if  defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__)  || defined(__AVR_ATtiny85__)\r
 174                         if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))\r
 175 #endif                  \r
 176 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) ||defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)\r
 177                         if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))\r
 178 #endif\r
 179                           {\r
 180 \r
 181                         MCUCR|=(1<<SE)|(1<<SM1);\r
 182                         MCUCR&=~(1<<ISC01);\r
 183                 } else {\r
 184                         MCUCR|=(1<<SE);\r
 185                         MCUCR&=~(1<<SM1);\r
 186                 }\r
 187                 //MCUCR&=~(1<<ISC01);\r
 188                 asm("SLEEP");\r
 189    }\r
 190 \r
 191 \r
 192 }