DS18B20_DS2438/DS18B20_DS2438.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 #include "../common/I2C/SHT2x.h"
  44
  45
  46 extern void OWINIT();
  47
  48
  49
  50 uint8_t owid1[8]={0x28, 0xA3, 0xD9, 0x84, 0x00, 0x16, 0x05, 0x18};/**/
  51 uint8_t owid2[8]={0x26, 0xA2, 0xD9, 0x84, 0x00, 0x00, 0x01, 0x77};/**/
  52 uint8_t config_info1[16]={0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  53 uint8_t config_info2[16]={0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  54
  55 #if (owid>128)
  56 #error "Variable not correct"
  57 #endif
  58
  59 extern uint8_t mode;
  60 extern uint8_t gcontrol;
  61 extern uint8_t reset_indicator;
  62 extern uint8_t alarmflag;
  63 volatile uint8_t wdcounter;
  64
  65
  66 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)
  67 ISR(WATCHDOG_vect) {
  68 #else
  69 ISR(WDT_vect) {
  70 #endif
  71         //sleep_disable();          // Disable Sleep on Wakeup
  72         wdcounter++;
  73         if (reset_indicator==1) reset_indicator++;
  74         else if (reset_indicator==2) mode=0;
  75 /*      if (timeout==2) {
  76                 DIS_TIMER;
  77                 EN_OWINT;
  78                 mode=OWM_SLEEP;
  79         }
  80         timeout++;*/
  81         //sleep_enable();           // Enable Sleep Mode
  82
  83 }
  84
  85
  86 typedef union {
  87         volatile uint8_t bytes[8];
  88         struct {
  89                 uint16_t temp;  //0
  90                 uint8_t TH;  //2
  91                 uint8_t TL;  //3
  92                 uint8_t config;  //4
  93                 uint8_t rrFF; //5
  94                 uint8_t rr00; //6
  95                 uint8_t rr10; //7
  96         };
  97 } pack1_t;
  98 volatile pack1_t pack1;
  99
 100
 101
 102 typedef union {
 103         #if  defined(__AVR_ATtiny25__)
 104         volatile uint8_t bytes[16];
 105         #else
 106         volatile uint8_t bytes[64];
 107         #endif
 108         struct {
 109                 uint8_t status;  //1
 110                 int16_t temp;  //2
 111                 uint16_t voltage;  //4
 112                 uint16_t current;  //6
 113                 uint8_t threshold; //8
 114
 115                 uint8_t page1[8]; //9
 116                 #if  defined(__AVR_ATtiny25__)
 117                 #else
 118                 uint8_t page2[8]; //17
 119                 uint8_t page3[8]; //25
 120                 uint8_t page4[8];  //33
 121                 uint8_t page5[8];  //41
 122                 uint8_t page6[8];  //49
 123                 uint8_t page7[8];  //57
 124                 //uint8_t crc;  //65
 125                 #endif
 126         };
 127 } pack2_t;
 128 volatile pack2_t pack2;
 129
 130
 131
 132
 133 volatile int16_t am2302_temp;
 134 volatile uint16_t am2302_hum;
 135
 136
 137 uint8_t userRegister[1];
 138 int16_t sRH,sT;
 139 volatile double temperatureC,humidityRH;
 140 volatile double l;
 141
 142
 143 int main(void){
 144     PRR|=(1<<PRADC);  // adc for save Power
 145         pack1.temp=0x0550;
 146         pack1.config=0x7F;
 147         pack1.TH=75;
 148         pack1.TL=70;
 149         pack1.rrFF=0xFF;
 150         pack1.rr00=0;
 151         pack1.rr10=0x10;
 152         PORTA=0xFF;
 153         PORTB=0xFF;
 154         OWINIT();
 155
 156         MCUCR &=~(1<<PUD); //All Pins Pullup...
 157         MCUCR |=(1<<BODS);
 158
 159         WDTCSR |= ((1<<WDCE) );   // Enable the WD Change Bit//| (1<<WDE)
 160         WDTCSR |=   (1<<WDIE) |              // Enable WDT Interrupt
 161         (1<<WDP2) | (1<<WDP1);   // Set Timeout to ~1 seconds
 162
 163         MCUSR=0;
 164         USI_TWI_Master_Initialise();
 165         SHT2x_SoftReset();
 166         SHT2x_ReadUserRegister(userRegister);
 167         //(userRegister & ~SHT2x_RES_MASK) | SHT2x_RES_10_13BIT;
 168         SHT2x_WriteUserRegister(userRegister); //write changed user reg
 169         // --- measure humidity with "Hold Master Mode (HM)" ---
 170         SHT2x_MeasurePoll(HUMIDITY, &sRH);
 171         // --- measure temperature with "Polling Mode" (no hold master) ---
 172         SHT2x_MeasurePoll(TEMP, &sT);
 173         //-- calculate humidity and temperature --
 174         temperatureC = SHT2x_CalcTemperatureC(sT);
 175         humidityRH = SHT2x_CalcRH(sRH);
 176
 177         gcontrol=1;
 178         sei();
 179     while(1)   {
 180                 if (wdcounter>0) {
 181                         SHT2x_MeasurePoll(HUMIDITY, &sRH);
 182                         // --- measure temperature with "Polling Mode" (no hold master) ---
 183                         SHT2x_MeasurePoll(TEMP, &sT);
 184                         //-- calculate humidity and temperature --
 185                         temperatureC = SHT2x_CalcTemperatureC(sT)*10.0;
 186                         humidityRH = SHT2x_CalcRH(sRH)*10.0;
 187                         double hhum=(1.0546-0.000216*temperatureC)*(humidityRH);
 188                         am2302_hum=0.318*hhum +76.0;
 189                         am2302_temp=temperatureC*25.6;
 190                         wdcounter=0;
 191                 }
 192
 193                 if (gcontrol==1) {
 194                         l=MAX44009getlux();
 195                         if (l<0.030) l=0.030; //Darf nicht 0 sein. minimum -35°C Sensor minimum 0.045
 196                         //double l=1000;
 197                         l=log(l)*10*16;
 198                         uint16_t w=l;
 199                         uint8_t t8=w>>4;
 200                         uint8_t af=0;
 201                         if (t8>pack1.TH) af=1;
 202                         if (t8<=pack1.TL) af=1;
 203                         cli();
 204                         pack1.temp=w;
 205                         //pack.temp++;
 206                         alarmflag=af;
 207                         sei();
 208                         gcontrol=0;
 209                 }
 210                 if ((gcontrol==2)||(gcontrol==3)) {
 211                         gcontrol=0;
 212
 213                 }
 214
 215
 216 #if  defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__)  || defined(__AVR_ATtiny85__)
 217                         if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))
 218 #endif
 219 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) ||defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)
 220                         if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))
 221 #endif
 222                           {
 223
 224                         MCUCR|=(1<<SE)|(1<<SM1);
 225                         MCUCR&=~(1<<ISC01);
 226                 } else {
 227                         MCUCR|=(1<<SE);
 228                         MCUCR&=~(1<<SM1);
 229                 }
 230                 //MCUCR&=~(1<<ISC01);
 231                 asm("SLEEP");
 232    }
 233
 234
 235 }