DS18B20_Thermocouble_DS2438_SHT/DS18B20_DS2438.c

   1 \r
   2 // Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de\r
   3 // All rights reserved.\r
   4 //\r
   5 // Redistribution and use in source and binary forms, with or without\r
   6 // modification, are permitted provided that the following conditions are\r
   7 // met:\r
   8 //\r
   9 //  * Redistributions of source code must retain the above copyright\r
  10 //    notice, this list of conditions and the following disclaimer.\r
  11 //  * Redistributions in binary form must reproduce the above copyright\r
  12 //    notice, this list of conditions and the following disclaimer in the\r
  13 //    documentation and/or other materials provided with the\r
  14 //    distribution.\r
  15 //  * All advertising materials mentioning features or use of this\r
  16 //    software must display the following acknowledgement: This product\r
  17 //    includes software developed by tm3d.de and its contributors.\r
  18 //  * Neither the name of tm3d.de nor the names of its contributors may\r
  19 //    be used to endorse or promote products derived from this software\r
  20 //    without specific prior written permission.\r
  21 //\r
  22 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\r
  23 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\r
  24 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\r
  25 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\r
  26 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\r
  27 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\r
  28 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\r
  29 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\r
  30 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
  31 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\r
  32 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\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/SHT2x.h"\r
  43 \r
  44 \r
  45 extern void OWINIT();\r
  46 extern void EXTERN_SLEEP();\r
  47 \r
  48 const float k_rs[54] PROGMEM ={0.000000,24.125000,48.585366,72.731707,96.829268,121.097561,145.700000,170.600000,195.650000,220.625000,245.365854,269.853659,294.119048,318.195122,342.166667,366.000000,389.761905,413.428571,437.023810,460.558140,484.047619,507.511628,530.976190,554.418605,577.883721,601.395349,624.952381,648.571429,672.285714,696.073171,719.976190,744.000000,768.146341,792.439024,816.853659,841.414634,866.125000,890.975000,916.000000,941.179487,966.525000,992.025641,1017.717949,1043.589744,1069.657895,1095.945946,1122.432432,1149.184211,1176.189189,1203.472222,1231.083333,1259.000000,1287.285714,1315.941176};\r
  49 //const float j_rs[70] PROGMEM ={0, 18.302913, 34.830476, 50.783019, 70.653704, 90.505455, 110.341818, 130.165455, 149.163636, 160.791071, 180.596364, 200.398214, 220.200000, 240.000000, 250.882883, 270.603636, 290.409091, 310.216364, 330.025455, 342.472727, 360.649091, 380.461818, 400.275000, 420.087273, 435.275676, 450.703636, 470.503636, 490.298214, 510.082456, 523.486726, 540.621053, 560.370175, 580.105172, 591.979487, 610.527119, 630.213559, 644.601653, 660.534426, 680.168852, 690.787097, 710.391935, 729.123810, 740.559375, 760.126562, 770.684615, 790.235385, 800.782812, 820.331250, 834.681250, 850.446032, 870.017460, 880.600000, 900.196774, 911.099187, 930.432787, 950.073333, 960.728333, 980.396667, 1000.078333, 1010.772881, 1030.475862, 1050.187931, 1065.717241, 1080.631034, 1100.358621, 1120.089655, 1131.840000,1150.556897, 1170.294737, 1190.035088};\r
  50 double gettemp_rs(double V) {\r
  51         uint8_t iv=(uint8_t)(V);\r
  52         float t0=pgm_read_float(&(k_rs[iv]));\r
  53         float t1=pgm_read_float(&(k_rs[iv+1]));\r
  54         return t0+(t1-t0)/1*(V-iv);\r
  55 }\r
  56 \r
  57 \r
  58 \r
  59 \r
  60 \r
  61 uint8_t owid1[8]={0x28, 0xA6, 0xD9, 0x84, 0x00, 0x00, 0x03, 0x68};/**/\r
  62 uint8_t owid2[8]={0x26, 0xA7, 0xD9, 0x84, 0x00, 0x00, 0x03, 0x20};/**/\r
  63 uint8_t config_info1[16]={0x01,0x02 ,0x00,0x00, 0x00,0x00, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; \r
  64 uint8_t config_info2[16]={0x01,0x06, 0x05,0x08, 0x04,0x07, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; \r
  65         \r
  66 #if (owid>128) \r
  67 #error "Variable not correct"\r
  68 #endif\r
  69 \r
  70 extern uint8_t mode;\r
  71 extern uint8_t gcontrol;\r
  72 extern uint8_t reset_indicator;\r
  73 extern uint8_t alarmflag;\r
  74 volatile uint8_t wdcounter=5;\r
  75 \r
  76 \r
  77 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)\r
  78 ISR(WATCHDOG_vect) {\r
  79 #else\r
  80 ISR(WDT_vect) {\r
  81 #endif \r
  82         //sleep_disable();          // Disable Sleep on Wakeup\r
  83         wdcounter++;\r
  84         if (reset_indicator==1) reset_indicator++;\r
  85         else if (reset_indicator==2) mode=0;\r
  86 /*      if (timeout==2) {\r
  87                 DIS_TIMER;\r
  88                 EN_OWINT;\r
  89                 mode=OWM_SLEEP;\r
  90         }\r
  91         timeout++;*/\r
  92         //sleep_enable();           // Enable Sleep Mode\r
  93 \r
  94 }\r
  95 \r
  96 int testSW(void) {\r
  97         uint8_t r;\r
  98         DDRB&=~(1<<PORTB0);  //Eingang\r
  99         __asm__ __volatile__ ("nop");\r
 100         PORTB|=(1<<PORTB0); //Pullup\r
 101         __asm__ __volatile__ ("nop");\r
 102         __asm__ __volatile__ ("nop");\r
 103         __asm__ __volatile__ ("nop");\r
 104         __asm__ __volatile__ ("nop");\r
 105         __asm__ __volatile__ ("nop");\r
 106         r=PINB&(1<<PORTB0);\r
 107         __asm__ __volatile__ ("nop");\r
 108         PORTB&=~(1<<PORTB0);\r
 109         __asm__ __volatile__ ("nop");\r
 110         DDRB|=(1<<PORTB0);  //Eingang\r
 111         return (r==0);\r
 112         \r
 113         \r
 114 }\r
 115 \r
 116 \r
 117 typedef union {\r
 118         volatile uint8_t bytes[8];\r
 119         struct {\r
 120                 uint16_t temp;  //0\r
 121                 uint8_t TH;  //2\r
 122                 uint8_t TL;  //3\r
 123                 uint8_t config;  //4\r
 124                 uint8_t rrFF; //5\r
 125                 uint8_t rr00; //6\r
 126                 uint8_t rr10; //7\r
 127         };\r
 128 } pack1_t;\r
 129 volatile pack1_t pack1;\r
 130 \r
 131 \r
 132 \r
 133 typedef union {\r
 134         #if  defined(__AVR_ATtiny25__)\r
 135         volatile uint8_t bytes[16];\r
 136         #else\r
 137         volatile uint8_t bytes[64];\r
 138         #endif\r
 139         struct {\r
 140                 uint8_t status;  //1\r
 141                 int16_t temp;  //2\r
 142                 uint16_t voltage;  //4\r
 143                 uint16_t current;  //6\r
 144                 uint8_t threshold; //8\r
 145                 \r
 146                 uint8_t page1[8]; //9\r
 147                 #if  defined(__AVR_ATtiny25__)\r
 148                 #else\r
 149                 uint8_t page2[8]; //17\r
 150                 uint8_t page3[8]; //25\r
 151                 uint8_t page4[8];  //33\r
 152                 uint8_t page5[8];  //41\r
 153                 uint8_t page6[8];  //49\r
 154                 uint8_t page7[8];  //57\r
 155                 //uint8_t crc;  //65\r
 156                 #endif\r
 157         };\r
 158 } pack2_t;\r
 159 volatile pack2_t pack2;\r
 160 \r
 161 \r
 162 volatile double V,ktemp;\r
 163 \r
 164 uint16_t ADmess() {\r
 165         ADMUX=0b10101101;\r
 166         ADCSRA|=(1<<ADSC);\r
 167         while ((ADCSRA&(1<<ADSC)));\r
 168         return ADC;\r
 169 }\r
 170 \r
 171 volatile int16_t am2302_temp;\r
 172 volatile uint16_t am2302_hum;\r
 173 \r
 174 \r
 175 uint8_t userRegister[1];\r
 176 int16_t sRH,sT;\r
 177 volatile double temperatureC,humidityRH;\r
 178 volatile double l;\r
 179 \r
 180 uint8_t max_adr=0;\r
 181 \r
 182 int main(void){\r
 183     //PRR|=(1<<PRADC);  // adc for save Power\r
 184         pack1.temp=0x0550;\r
 185         pack1.config=0x7F;\r
 186         pack1.TH=75;\r
 187         pack1.TL=70;\r
 188         pack1.rrFF=0xFF;\r
 189         pack1.rr00=0;\r
 190         pack1.rr10=0x10;\r
 191         PORTA=0xFF-(1<<PINA1)-(1<<PINA2);\r
 192         PORTB=0xFF;\r
 193         OWINIT();\r
 194 \r
 195         MCUCR &=~(1<<PUD); //All Pins Pullup...\r
 196         MCUCR |=(1<<BODS);\r
 197 \r
 198         WDTCSR |= ((1<<WDCE) );   // Enable the WD Change Bit//| (1<<WDE)\r
 199         WDTCSR |=   (1<<WDIE) |              // Enable WDT Interrupt\r
 200         (1<<WDP2) | (1<<WDP1);   // Set Timeout to ~1 seconds\r
 201         if (testSW()) {\r
 202                 config_info2[5]=8;\r
 203                 }else{\r
 204                 config_info2[5]=7;\r
 205         }\r
 206         MCUSR=0;\r
 207         USI_TWI_Master_Initialise();\r
 208         SHT2x_SoftReset();\r
 209         SHT2x_ReadUserRegister(userRegister);\r
 210         //(userRegister & ~SHT2x_RES_MASK) | SHT2x_RES_10_13BIT;\r
 211         SHT2x_WriteUserRegister(userRegister); //write changed user reg\r
 212         // --- measure humidity with "Hold Master Mode (HM)" ---\r
 213         SHT2x_MeasurePoll(HUMIDITY, &sRH);\r
 214         // --- measure temperature with "Polling Mode" (no hold master) ---\r
 215         SHT2x_MeasurePoll(TEMP, &sT);\r
 216         //-- calculate humidity and temperature --\r
 217         //temperatureC = SHT2x_CalcTemperatureC(sT);\r
 218         //humidityRH = SHT2x_CalcRH(sRH);\r
 219         \r
 220         gcontrol=1;\r
 221         sei();\r
 222         ADCSRA=(1<<ADEN)|(1<<ADPS2)|(1<<ADPS1)|(1<<ADPS0);\r
 223         //DDRB|=(1<<PINB1);\r
 224 \r
 225         uint16_t ares[16],sum;\r
 226         uint8_t par=0;\r
 227         ares[0]=0;//ADmess();\r
 228         for (par=1;par<16;par++) {\r
 229                 ares[par]=ares[0];\r
 230         }\r
 231         par=0;\r
 232     while(1)   {\r
 233                 if ((gcontrol==2)||(gcontrol==3)) {\r
 234                         wdcounter=1;\r
 235                         gcontrol=0;\r
 236                         \r
 237                 }\r
 238                 \r
 239                 if (wdcounter>0) {\r
 240                         if (par==0) {\r
 241                                 //PORTB|=(1<<PINB1); //Dauer 440ms\r
 242                                 SHT2x_MeasurePoll(HUMIDITY, &sRH);\r
 243                                 // --- measure temperature with "Polling Mode" (no hold master) ---\r
 244                                 SHT2x_MeasurePoll(TEMP, &sT);\r
 245                                 //-- calculate humidity and temperature --\r
 246                                 temperatureC = SHT2x_CalcTemperatureC(sT)*10.0-2;\r
 247                                 humidityRH = SHT2x_CalcRH(sRH)*10.0+5;\r
 248                                 if (humidityRH>1000) humidityRH=1000;\r
 249                                 if (testSW()) {\r
 250                                         am2302_hum= humidityRH*10.0;\r
 251                                         am2302_temp=temperatureC*25.6;\r
 252                                         //\r
 253                                         config_info2[5]=8;\r
 254                                 }else{\r
 255                                         double hhum=(1.0546-0.000216*temperatureC)*(humidityRH);\r
 256                                         //am2302_hum=0.318*hhum +76.0;\r
 257                                         am2302_hum=0.31*hhum +80;\r
 258                                         am2302_temp=temperatureC*25.6;\r
 259                                         //am2302_temp=am2302_temp-45;\r
 260                                         config_info2[5]=7;\r
 261                                 }\r
 262                         }\r
 263                         ares[par]=ADmess();\r
 264                         par++;\r
 265                         if (par>15) par=0;\r
 266                         wdcounter=0;\r
 267                 }\r
 268         \r
 269                 if (gcontrol==1) {\r
 270                         gcontrol=0;\r
 271                         sum=0;\r
 272                         for(uint8_t i=0;i<16;i++) {\r
 273                                 sum+=ares[i];\r
 274                         }\r
 275                         V=sum/20.0/1024.0*1.12*1000.0/16.0;\r
 276                         //V=sum/20.0/1024.0*1.01*1000.0/16.0;\r
 277                         uint16_t htemp;\r
 278                         ktemp=gettemp_rs(V);\r
 279                         //htemp=(ktemp*16)/10;\r
 280                         htemp=(ktemp*16+temperatureC*1.6)/10;\r
 281 \r
 282                         uint16_t w=htemp;\r
 283                         uint8_t t8=w>>4;\r
 284                         uint8_t af=0;\r
 285                         if (t8>pack1.TH) af=1;\r
 286                         if (t8<=pack1.TL) af=1; \r
 287                         cli();\r
 288                         pack1.temp=w;\r
 289                         //pack.temp++;\r
 290                         alarmflag=af;\r
 291                         sei();                  \r
 292                         EXTERN_SLEEP();         \r
 293                 }\r
 294                 \r
 295 \r
 296                 \r
 297 #if  defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__)  || defined(__AVR_ATtiny85__)\r
 298                         if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))\r
 299 #endif                  \r
 300 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) ||defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)\r
 301                         if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))\r
 302 #endif\r
 303                           {\r
 304 \r
 305                         MCUCR|=(1<<SE)|(1<<SM1);\r
 306                         MCUCR&=~(1<<ISC01);\r
 307                 } else {\r
 308                         MCUCR|=(1<<SE);\r
 309                         MCUCR&=~(1<<SM1);\r
 310                 }\r
 311                 asm("SLEEP");\r
 312    }\r
 313 \r
 314 \r
 315 }