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/owSlave_tools.h"\r
  41 #include "../common/I2C/USI_TWI_Master.h"\r
  42 #include "../common/I2C/CDM7160.h"\r
  43 \r
  44 \r
  45 OWST_EXTERN_VARS\r
  46 \r
  47 uint8_t owid[8]={0x28, 0xA2, 0xD9, 0x84, 0x00, 0x16, 0x77, 0x6B};/**/\r
  48 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
  49         \r
  50 \r
  51 OWST_WDT_ISR\r
  52 \r
  53 typedef union {\r
  54         volatile uint8_t bytes[8];\r
  55         struct {\r
  56                 int16_t temp;  //0\r
  57                 uint8_t TH;  //2\r
  58                 uint8_t TL;  //3\r
  59                 uint8_t config;  //4\r
  60                 uint8_t rrFF; //5\r
  61                 uint8_t rr00; //6\r
  62                 uint8_t rr10; //7\r
  63         };\r
  64 } pack_t;\r
  65 volatile pack_t pack;\r
  66 \r
  67 \r
  68 \r
  69 \r
  70 \r
  71 \r
  72 \r
  73 \r
  74 int main(void) {\r
  75         OWST_INIT_USI_ON\r
  76 \r
  77 \r
  78         pack.temp=0x0550;\r
  79         pack.config=0x7F;\r
  80         pack.TH=75;\r
  81         pack.TL=70;\r
  82         pack.rrFF=0xFF;\r
  83         pack.rr00=0;\r
  84         pack.rr10=0x10;\r
  85         PORTA=0xFF;\r
  86         PORTB=0xFF;\r
  87         OWINIT();\r
  88         PORTB&=~(1<<PINB1);\r
  89         DDRB|=(1<<PINB1);\r
  90         PORTA&=~(1<<PINA0);\r
  91 \r
  92         OWST_EN_PULLUP\r
  93         OWST_WDR_CONFIG8\r
  94 \r
  95         _delay_ms(100);\r
  96         USI_TWI_Master_Initialise();\r
  97         CDM7160softReset();\r
  98         _delay_ms(200);\r
  99         \r
 100         CDM7160setMode(0); //Power Down Mode\r
 101         _delay_ms(200);\r
 102         CDM7160setAvCount(0x3F);\r
 103         CDM7160setFMode(1);\r
 104         pack.temp=CDM7160getCO2();\r
 105         CDM7160setMode(1);\r
 106         _delay_ms(200);\r
 107         gcontrol=1;\r
 108         //DDRB|=(1<<PINB1);\r
 109         //while (1)                     {volatile double l=CDM7160getCO2();}\r
 110 \r
 111         sei();\r
 112         #define PBR 1\r
 113     while(1)   {\r
 114         \r
 115                 if (gcontrol) {\r
 116                         if (wdcounter<PBR)      wdcounter=PBR;\r
 117                         gcontrol=0;\r
 118                 }\r
 119                 if ( wdcounter==PBR) {\r
 120                         //CDM7160setMode(1);\r
 121                 }\r
 122                 if (wdcounter>(PBR+1)) {\r
 123                         wdcounter=0;\r
 124                         //PORTB|=(1<<PINB1); //Dauer 2.3ms\r
 125                         volatile int16_t l=(int16_t)CDM7160getCO2()-1280;       \r
 126                         int16_t w=l;\r
 127                         int8_t t8=w/16;\r
 128                         int8_t af=0;\r
 129                         if (t8>pack.TH) af=1;\r
 130                         if (t8<=pack.TL) af=1; \r
 131                         cli();\r
 132                         pack.temp=w;\r
 133                         //pack.temp++;\r
 134                         alarmflag=af;\r
 135                         sei();  \r
 136                         //CDM7160setMode(0);\r
 137                         EXTERN_SLEEP();         \r
 138                         //PORTB&=~(1<<PINB1);\r
 139                                         \r
 140                 }\r
 141 \r
 142                 \r
 143                 OWST_MAIN_END\r
 144    }\r
 145 \r
 146 \r
 147 }