DS2438_HIH9121/DS2438_HIH9121.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 \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/MAX44009.h"\r
  43 #include "../common/I2C/SHT2x.h"\r
  44 \r
  45 extern void OWINIT();\r
  46 extern void EXTERN_SLEEP();\r
  47 \r
  48 uint8_t owid[8]={0x26, 0xA2, 0xD9, 0x84, 0x00, 0x00, 0x05, 0x16};/**/\r
  49 uint8_t config_info[26]={0x01,0x06, 0x05,0x08, 0x04,0x07, 0x00,0x00, 0x02,0x10,0x00,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};\r
  50         \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 \r
  57 volatile uint8_t wdcounter;\r
  58 \r
  59 \r
  60 typedef union {\r
  61 \r
  62         volatile uint8_t bytes[64];\r
  63         struct {\r
  64                 uint8_t status;  //1\r
  65                 int16_t temp;  //2\r
  66                 uint16_t voltage;  //4\r
  67                 uint16_t current;  //6\r
  68                 uint8_t threshold; //8\r
  69                 \r
  70                 uint8_t page1[8]; //9\r
  71                 uint8_t page2[8]; //17\r
  72                 uint8_t page3[8]; //25\r
  73                 uint8_t page4[8];  //33\r
  74                 uint8_t page5[8];  //41\r
  75                 uint8_t page6[8];  //49\r
  76                 uint8_t page7[8];  //57\r
  77                 //uint8_t crc;  //65\r
  78         };\r
  79 } pack_t;\r
  80 volatile pack_t pack;\r
  81 \r
  82 \r
  83 \r
  84 volatile int16_t am2302_temp;\r
  85 volatile uint16_t am2302_hum;\r
  86 \r
  87 uint8_t userRegister[1];\r
  88 int16_t sRH,sT;\r
  89 volatile double temperatureC,humidityRH;\r
  90 volatile double l;\r
  91 \r
  92 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)\r
  93 ISR(WATCHDOG_vect) {\r
  94 #else\r
  95 ISR(WDT_vect) {\r
  96 #endif \r
  97         wdcounter++;\r
  98         if (reset_indicator==1) reset_indicator++;\r
  99         else if (reset_indicator==2) mode=0;\r
 100 \r
 101 \r
 102 }\r
 103 \r
 104 int testSW(void) {\r
 105         uint8_t r;\r
 106         DDRB&=~(1<<PORTB0);  //Eingang\r
 107          __asm__ __volatile__ ("nop"); \r
 108          PORTB|=(1<<PORTB0); //Pullup\r
 109          __asm__ __volatile__ ("nop"); \r
 110          __asm__ __volatile__ ("nop"); \r
 111          __asm__ __volatile__ ("nop"); \r
 112          __asm__ __volatile__ ("nop"); \r
 113          __asm__ __volatile__ ("nop"); \r
 114          r=PINB&(1<<PORTB0);\r
 115          __asm__ __volatile__ ("nop");  \r
 116          PORTB&=~(1<<PORTB0); \r
 117          __asm__ __volatile__ ("nop"); \r
 118         DDRB|=(1<<PORTB0);  //Eingang\r
 119         return (r==0);\r
 120          \r
 121          \r
 122 }\r
 123 \r
 124 int main(void){\r
 125      PRR|=(1<<PRADC);  // adc for save Power\r
 126         PORTA=0xFF;\r
 127         PORTB=0xFF-(1<<PORTB0); //Schalter kann gegen Masse sein und zieht dann immer Strom\r
 128         DDRB|=(1<<PORTB0); //Als Ausgang und 0\r
 129         \r
 130         \r
 131         OWINIT();\r
 132 \r
 133         ACSR|=(1<<ACD);  //Disable Comparator\r
 134         ADCSRB|=(1<<ACME); //Disable Analog multiplexer\r
 135         MCUCR &=~(1<<PUD); //All Pins Pullup...\r
 136         MCUCR |=(1<<BODS);\r
 137 \r
 138         \r
 139         WDTCSR |= ((1<<WDCE) );   // Enable the WD Change Bit//| (1<<WDE)\r
 140         WDTCSR |=   (1<<WDIE) |              // Enable WDT Interrupt\r
 141         (1<<WDP3) | (1<<WDP0);   // Set Timeout to ~8 seconds\r
 142          if (testSW()) {\r
 143                 config_info[5]=8;\r
 144         }else{\r
 145                 config_info[5]=7;\r
 146          }\r
 147         \r
 148     uint8_t i;\r
 149     for(i=0;i<64;i++) pack.bytes[i]=0;\r
 150         MCUSR=0;\r
 151         USI_TWI_Master_Initialise();\r
 152         volatile uint16_t res,res1;\r
 153         I2c_StartCondition();\r
 154         I2c_WriteByte (0b01001110);\r
 155         I2c_StopCondition();\r
 156         _delay_us(100);\r
 157         \r
 158         I2c_StartCondition();\r
 159         I2c_WriteByte (0b01001111);\r
 160         _delay_us(80);\r
 161         res=((int16_t)(I2c_ReadByte(ACK))&0x3F)<<8;\r
 162         res|=I2c_ReadByte(ACK);\r
 163         res1=((int16_t)(I2c_ReadByte(ACK)))<<6;\r
 164         res1|=I2c_ReadByte(NO_ACK)>>2;\r
 165 \r
 166         I2c_StopCondition();\r
 167         temperatureC=res1/16382.0*160.0-40.0;\r
 168         humidityRH=res/16382.0*100.0;\r
 169         //temperatureC = SHT2x_CalcTemperatureC(sT);\r
 170         //humidityRH = SHT2x_CalcRH(sRH);\r
 171         \r
 172         sei();\r
 173         \r
 174          while(1)   {\r
 175                  if (gcontrol) {\r
 176                          wdcounter=3;\r
 177                          gcontrol=0;\r
 178                  }\r
 179                  if (wdcounter>2) {\r
 180                          I2c_StartCondition();\r
 181                         I2c_WriteByte (0b01001110);\r
 182                         I2c_StopCondition();\r
 183                         _delay_us(100);\r
 184                         I2c_StartCondition();\r
 185                         I2c_WriteByte (0b01001111);\r
 186                         _delay_us(80);\r
 187                         res=((int16_t)(I2c_ReadByte(ACK))&0x3F)<<8;\r
 188                         res|=I2c_ReadByte(ACK);\r
 189                         res1=((int16_t)(I2c_ReadByte(ACK)))<<6;\r
 190                         res1|=I2c_ReadByte(NO_ACK)>>2;\r
 191 \r
 192                         I2c_StopCondition();\r
 193                         temperatureC=res1/16382.0*1650.0-400.0;\r
 194                         humidityRH=res/16382.0*1000.0;\r
 195 \r
 196                          if (testSW()) {\r
 197                                  am2302_hum= humidityRH*10.0;\r
 198                                  am2302_temp=temperatureC*25.6;\r
 199                                  //am2302_temp=am2302_temp-45;\r
 200                                  config_info[5]=8;      \r
 201                                  \r
 202                          }else{\r
 203                                  \r
 204                                 double hhum=(1.0546-0.000216*temperatureC)*(humidityRH);\r
 205                                 //am2302_hum=0.318*hhum +76.0;\r
 206                                 am2302_hum=0.31*hhum +80;\r
 207                                 am2302_temp=temperatureC*25.6;\r
 208                                 //am2302_temp=am2302_temp-45;\r
 209                                 config_info[5]=7;\r
 210                          }\r
 211                          //PORTB&=~(1<<PINB1);\r
 212                          wdcounter=0;\r
 213                  }\r
 214 \r
 215                 if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))       {\r
 216                         MCUCR|=(1<<SE)|(1<<SM1);\r
 217                         MCUCR&=~(1<<ISC01);\r
 218                 } else {\r
 219                         MCUCR|=(1<<SE);\r
 220                         MCUCR&=~(1<<SM1);\r
 221                 }\r
 222                 asm("SLEEP");\r
 223         }\r
 224 \r
 225 \r
 226 }