DS2450_SHT2X_BMP280/DS2450_SHT2X_BMP280.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/SHT2x.h"\r
  42 #include "../common/I2C/BMP280.h"\r
  43 extern void OWINIT();\r
  44 extern void EXTERN_SLEEP();\r
  45 \r
  46 uint8_t owid[8]={0x20, 0xA2, 0xD9, 0x84, 0x00, 0x16, 0x02, 0x5D};/**/\r
  47 uint8_t config_info[26]={0x01,14,0x04,0x08, 0,0, 0x02,16,0x02,0x07,0x07,0x00,14,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};\r
  48 #if (owid>128) \r
  49 #error "Variable not correct"\r
  50 #endif\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 volatile uint8_t wdcounter=10;\r
  57 \r
  58 \r
  59 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)\r
  60 ISR(WATCHDOG_vect) {\r
  61 #else\r
  62 ISR(WDT_vect) {\r
  63 #endif \r
  64         wdcounter++;\r
  65         if (reset_indicator==1) reset_indicator++;\r
  66         else if (reset_indicator==2) mode=0;\r
  67 }\r
  68 \r
  69 typedef union {\r
  70         volatile uint8_t bytes[0x20];\r
  71         struct {\r
  72                 //Page0\r
  73                 uint16_t A;  //0\r
  74                 uint16_t B;  //2\r
  75                 uint16_t C;  //4\r
  76                 uint16_t D;  //6\r
  77                 //Page1\r
  78                 uint8_t CSA1;\r
  79                 uint8_t CSA2;\r
  80                 uint8_t CSB1;\r
  81                 uint8_t CSB2;\r
  82                 uint8_t CSC1;\r
  83                 uint8_t CSC2;\r
  84                 uint8_t CSD1;\r
  85                 uint8_t CSD2;\r
  86                 //Page2\r
  87                 uint8_t LA;\r
  88                 uint8_t HA;\r
  89                 uint8_t LB;\r
  90                 uint8_t HB;\r
  91                 uint8_t LC;\r
  92                 uint8_t HC;\r
  93                 uint8_t LD;\r
  94                 uint8_t HD;\r
  95                 //Page3\r
  96                 uint8_t FC1;\r
  97                 uint8_t FC2;\r
  98                 uint8_t FC3;\r
  99                 uint8_t FC4;\r
 100                 uint8_t VCCP;\r
 101                 uint8_t FC5;\r
 102                 uint8_t FC6;\r
 103                 uint8_t FC7;\r
 104                 uint8_t convc1;\r
 105                 uint8_t convc2;\r
 106                 \r
 107                 \r
 108         };\r
 109 } pack_t;\r
 110 volatile pack_t pack;\r
 111 \r
 112 \r
 113 \r
 114 volatile int16_t am2302_temp;\r
 115 volatile uint16_t am2302_hum;\r
 116 \r
 117 \r
 118 uint8_t userRegister[1];\r
 119 int16_t sRH,sT;\r
 120 volatile double temperatureC,humidityRH;\r
 121 uint32_t P;\r
 122 int32_t t;\r
 123 \r
 124 \r
 125 \r
 126 \r
 127 int main(void){\r
 128         pack.A=0;\r
 129         pack.B=0;\r
 130         pack.C=0;\r
 131         pack.D=0;\r
 132         pack.CSA1=0x08;\r
 133         pack.CSA2=0x8C;\r
 134         pack.CSB1=0x08;\r
 135         pack.CSB2=0x8C;\r
 136         pack.CSC1=0x08;\r
 137         pack.CSC2=0x8C;\r
 138         pack.CSD1=0x08;\r
 139         pack.CSD2=0x8C;\r
 140         pack.HA=0xFF;\r
 141         pack.LA=0x00;\r
 142         pack.HB=0xFF;\r
 143         pack.LB=0x00;\r
 144         pack.HC=0xFF;\r
 145         pack.LC=0x00;\r
 146         pack.HD=0xFF;\r
 147         pack.LD=0x00;\r
 148         pack.VCCP=0;\r
 149     PORTB=0xFF-(1<<PORTB0); //Schalter kann gegen Masse sein und zieht dann immer Strom\r
 150         DDRB|=(1<<PORTB0); //Als Ausgang und 0\r
 151         PORTA=0xFF;  //All Pull up;\r
 152          PRR|=(1<<PRADC);  // adc for save Power\r
 153 \r
 154         ACSR|=(1<<ACD);  //Disable Comparator\r
 155         OWINIT();\r
 156 \r
 157         MCUCR &=~(1<<PUD); //All Pins Pullup...\r
 158         MCUCR |=(1<<BODS);\r
 159         WDTCSR |= ((1<<WDCE) );   // Enable the WD Change Bit//| (1<<WDE)\r
 160         WDTCSR |=   (1<<WDIE) |              // Enable WDT Interrupt\r
 161         (1<<WDP3) | (1<<WDP0);   // Set Timeout to ~8 seconds\r
 162         \r
 163         gcontrol=1;\r
 164         \r
 165         USI_TWI_Master_Initialise();\r
 166         bmp280Init();\r
 167         SHT2x_SoftReset();\r
 168         SHT2x_ReadUserRegister(userRegister);\r
 169         //(userRegister & ~SHT2x_RES_MASK) | SHT2x_RES_10_13BIT;\r
 170         SHT2x_WriteUserRegister(userRegister); //write changed user reg\r
 171         // --- measure humidity with "Hold Master Mode (HM)" ---\r
 172         //SHT2x_MeasurePoll(HUMIDITY, &sRH);\r
 173         // --- measure temperature with "Polling Mode" (no hold master) ---\r
 174         //SHT2x_MeasurePoll(TEMP, &sT);\r
 175         //-- calculate humidity and temperature --\r
 176         //temperatureC = SHT2x_CalcTemperatureC(sT);\r
 177         //humidityRH = SHT2x_CalcRH(sRH);\r
 178         \r
 179         sei();\r
 180         \r
 181         //DDRB|=(1<<PINB1);\r
 182 \r
 183     while(1)   {\r
 184         \r
 185         if (wdcounter>3) {      \r
 186                 SHT2x_MeasurePoll(HUMIDITY, &sRH);\r
 187                 // --- measure temperature with "Polling Mode" (no hold master) ---\r
 188                 SHT2x_MeasurePoll(TEMP, &sT);\r
 189                 //-- calculate humidity and temperature --\r
 190                 temperatureC = SHT2x_CalcTemperatureC(sT);\r
 191                 humidityRH = SHT2x_CalcRH(sRH);\r
 192                 bmp280ConvertInt(&t,&P,1);\r
 193                 wdcounter=0;\r
 194         }\r
 195         \r
 196 \r
 197                 \r
 198                 \r
 199 \r
 200 \r
 201                 if (gcontrol) {\r
 202                         //PORTB|=(1<<PINB1);\r
 203                         uint8_t bb=1;\r
 204                         uint8_t bb1=1;\r
 205                         for(uint8_t i=0;i<4;i++){\r
 206                                 if (pack.convc1&bb1) {\r
 207                                         if (pack.convc2&(bb)) {pack.bytes[i*2]=0;pack.bytes[i*2+1]=0;}\r
 208                                         bb=bb<<1;\r
 209                                         if (pack.convc2&(bb)) {pack.bytes[i*2]=0xFF;pack.bytes[i*2+1]=0xFF;}\r
 210                                         bb=bb<<1;\r
 211                                 } else bb=bb<<2;\r
 212                                 bb1=bb1<<1;                             \r
 213                         }\r
 214                         //CHanel A\r
 215                         if (pack.convc1&1) {\r
 216                                 /*if (pack.CSA2&0x01)   ADMUX=0; else ADMUX=0x80;\r
 217                                 _delay_us(100);\r
 218                                 ADCSRA|=(1<<ADSC);\r
 219                                 while ((ADCSRA&(1<<ADSC)));\r
 220                                 cli();pack.A=ADC;sei();*/\r
 221                                 uint16_t ct=(temperatureC*100.0)+32767;\r
 222                                 cli();pack.A=ct;sei();\r
 223                                 wdcounter=10;\r
 224                                 alarmflag=0;\r
 225                                 \r
 226                                 if (pack.CSA2&0x08)  //AEH\r
 227                                         if (pack.bytes[1]>pack.HA) {alarmflag=1;pack.CSA2|=0x20;}\r
 228                                 if (pack.CSA2&0x04)  //AEL\r
 229                                         if (pack.bytes[1]<pack.LA) {alarmflag=1;pack.CSA2|=0x10;}\r
 230                         }\r
 231 \r
 232                         if (pack.convc1&2) {\r
 233                                 /*if (pack.CSB2&0x01)   ADMUX=1; else ADMUX=0x81;\r
 234                                 _delay_us(100);\r
 235                                 ADCSRA|=(1<<ADSC);\r
 236                                 while ((ADCSRA&(1<<ADSC)));\r
 237                                 cli();pack.B=ADC;sei();*/\r
 238                                 wdcounter=10;\r
 239                                 cli();pack.B=humidityRH*100;sei();\r
 240                                 if (pack.CSB2&0x08)  //AEH\r
 241                                         if (pack.bytes[1]>pack.HB) {alarmflag=1;pack.CSB2|=0x20;}\r
 242                                 if (pack.CSB2&0x04)  //AEL\r
 243                                         if (pack.bytes[1]<pack.LB) {alarmflag=1;pack.CSB2|=0x10;}\r
 244                         }\r
 245 \r
 246                         if (pack.convc1&4) {\r
 247                                 /*if (pack.CSC2&0x01)   ADMUX=2; else ADMUX=0x82;\r
 248                                 _delay_us(100);\r
 249                                 ADCSRA|=(1<<ADSC);\r
 250                                 while ((ADCSRA&(1<<ADSC)));\r
 251                                 cli();pack.C=ADC;sei();*/\r
 252                                 wdcounter=10;\r
 253                                 cli();pack.C=0;sei();\r
 254                                 if (pack.CSC2&0x08)  //AEH\r
 255                                         if (pack.bytes[1]>pack.HC) {alarmflag=1;pack.CSC2|=0x20;}\r
 256                                 if (pack.CSC2&0x04)  //AEL\r
 257                                         if (pack.bytes[1]<pack.LC) {alarmflag=1;pack.CSC2|=0x10;}\r
 258                         } \r
 259                         if (pack.convc1&8) {\r
 260                                 /*if (pack.CSD2&0x01)   ADMUX=3; else ADMUX=0x83;\r
 261                                 _delay_us(100);\r
 262                                 ADCSRA|=(1<<ADSC);\r
 263                                 while ((ADCSRA&(1<<ADSC)));\r
 264                                 cli();pack.D=ADC;sei();*/\r
 265                                 wdcounter=10;\r
 266                                 cli();pack.D=P/100.0*32.0;sei();\r
 267                                 if (pack.CSD2&0x08)  //AEH\r
 268                                         if (pack.bytes[1]>pack.HD) {alarmflag=1;pack.CSD2|=0x20;}\r
 269                                 if (pack.CSD2&0x04)  //AEL\r
 270                                         if (pack.bytes[1]<pack.LD) {alarmflag=1;pack.CSD2|=0x10;}\r
 271                         }\r
 272                         \r
 273                         EXTERN_SLEEP();\r
 274                         //PORTB&=~(1<<PINB1);\r
 275                 }\r
 276 \r
 277                 /*uint8_t bb=1;\r
 278                 for(uint8_t i=0;i<4;i++) {\r
 279                         if (pack.bytes[8+i*2]&0x80) {  //Chanel as output\r
 280                                 if (pack.bytes[8+i*2]&0x40) {\r
 281                                         DDRA|=bb;\r
 282                                 } else {\r
 283                                         DDRA&=~bb;\r
 284                                 }\r
 285                         } else {\r
 286                                 DDRA&=~bb;\r
 287                         }\r
 288                         bb=bb*2;\r
 289                 }*/\r
 290                 \r
 291 #if  defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__)  || defined(__AVR_ATtiny85__)\r
 292                         if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))\r
 293 #endif                  \r
 294 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) ||defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)\r
 295                         if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))\r
 296 #endif\r
 297                           {\r
 298 \r
 299                         MCUCR|=(1<<SE)|(1<<SM1);\r
 300                         MCUCR&=~(1<<ISC01);\r
 301                 } else {\r
 302                         MCUCR|=(1<<SE);\r
 303                         MCUCR&=~(1<<SM1);\r
 304                 }\r
 305         //      asm("SLEEP");\r
 306    }\r
 307 \r
 308 \r
 309 }