DS2423 - Autosave/DS2423.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 _CPULLUP_\r
  34 \r
  35 #define F_CPU 8000000UL\r
  36 #include <avr/io.h>\r
  37 #include <avr/interrupt.h>\r
  38 #include <util/delay.h>\r
  39 #include <avr/wdt.h>\r
  40 #include <avr/sleep.h>\r
  41 \r
  42 \r
  43 \r
  44 extern void OWINIT();\r
  45 \r
  46 uint8_t owid[8]={0x1D, 0xA2, 0xD9, 0x84, 0x00, 0x26, 0x02, 0x5C};/**/\r
  47 uint8_t config_info[26]={9,13,9,13,9,13,9,13,0x02,19,19,19,19,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; //+2 for CRC\r
  48 \r
  49         \r
  50 \r
  51 extern uint8_t mode;\r
  52 extern uint8_t gcontrol;\r
  53 extern uint8_t reset_indicator;\r
  54 \r
  55 \r
  56 \r
  57 \r
  58 \r
  59 \r
  60 typedef union {\r
  61         volatile uint8_t bytes[45];\r
  62         struct {\r
  63                 uint16_t addr;\r
  64                 uint8_t status;\r
  65                 uint8_t scratch[32];//3\r
  66                 uint32_t counter;  //35\r
  67                 uint32_t zero;   //39\r
  68                 uint16_t crc;  //43\r
  69         };\r
  70 } counterpack_t;\r
  71 counterpack_t pack;\r
  72 \r
  73 volatile uint8_t lastcps;\r
  74 typedef union {\r
  75         uint32_t c32[4];\r
  76         uint8_t c8[16];\r
  77 } counters_t;\r
  78 \r
  79 volatile counters_t counters;\r
  80 \r
  81 volatile uint8_t istat;\r
  82 volatile uint8_t changefromeeprom;\r
  83 \r
  84 \r
  85 \r
  86 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)\r
  87 #define PCINT_VECTOR PCINT0_vect\r
  88 #define PIN_REG PINA\r
  89 #define PIN_DDR DDRA\r
  90 #define PIN_CH2 (1<<PINA4)\r
  91 #define PIN_CH3 (1<<PINA5)\r
  92 #define PIN_CH0 (1<<PINA6)\r
  93 #define PIN_CH1 (1<<PINA7)\r
  94 #define PORT_EE PINA //WARNING have to be the same PORT like PINREG because of istat\r
  95 #define PIN_EE (1<<PINA0)\r
  96 #define TEST_TIMER  ((TIMSK0 & (1<<TOIE0))==0)\r
  97 \r
  98 #endif\r
  99 \r
 100 \r
 101 ISR(PCINT0_vect) {\r
 102         if (((PIN_REG&PIN_CH2)==0)&&((istat&PIN_CH2)==PIN_CH2)) {       counters.c32[2]++;      }\r
 103         if (((PIN_REG&PIN_CH3)==0)&&((istat&PIN_CH3)==PIN_CH3)) {       counters.c32[3]++;      }\r
 104         if (((PIN_REG&PIN_CH0)==0)&&((istat&PIN_CH0)==PIN_CH0)) {       counters.c32[0]++;      }\r
 105         if (((PIN_REG&PIN_CH1)==0)&&((istat&PIN_CH1)==PIN_CH1)) {       counters.c32[1]++;      }\r
 106         istat=PIN_REG;\r
 107         changefromeeprom=1;\r
 108 }\r
 109 \r
 110 \r
 111 ISR(ANA_COMP_vect) {\r
 112         if (changefromeeprom==0) return;\r
 113         if ((ACSR&(1<<ACO))!=0) {\r
 114                 _delay_ms(5);\r
 115                 if ((ACSR&(1<<ACO))!=0) {\r
 116                         CLKPR=0x80;//Switch to 4 MHz \r
 117                         CLKPR=01;                       \r
 118                         \r
 119                         PORTB|=(1<<PINB1);\r
 120                         EEARH=0;\r
 121                         for(uint8_t i=0;i<16;i++) {\r
 122                                 uint8_t addr=i^0x0C;\r
 123                                 while(EECR & (1<<EEPE));\r
 124                                 EECR = (0<<EEPM1)|(0<<EEPM0);\r
 125                                 EEARL = i;\r
 126                                 EEDR = counters.c8[addr];\r
 127                                 EECR |= (1<<EEMPE);\r
 128                                 EECR |= (1<<EEPE);\r
 129                         }\r
 130                         changefromeeprom=0;\r
 131                         PORTB&=~(1<<PINB1);\r
 132                         CLKPR=0x80;\r
 133                         CLKPR=0;\r
 134                         GIFR|=(1<<INTF0);\r
 135                 }\r
 136         }\r
 137         \r
 138 }\r
 139 \r
 140 int testSW(void) {\r
 141         uint8_t r;\r
 142         DDRB&=~(1<<PORTB0);  //Eingang\r
 143         __asm__ __volatile__ ("nop");\r
 144         PORTB|=(1<<PORTB0); //Pullup\r
 145         __asm__ __volatile__ ("nop");\r
 146         __asm__ __volatile__ ("nop");\r
 147         __asm__ __volatile__ ("nop");\r
 148         __asm__ __volatile__ ("nop");\r
 149         __asm__ __volatile__ ("nop");\r
 150         r=PINB&(1<<PORTB0);\r
 151         __asm__ __volatile__ ("nop");\r
 152         PORTB&=~(1<<PORTB0);\r
 153         __asm__ __volatile__ ("nop");\r
 154         DDRB|=(1<<PORTB0);  //Eingang\r
 155         return (r==0);\r
 156         \r
 157         \r
 158 }\r
 159 \r
 160 \r
 161 int main(void){\r
 162     PRR|=(1<<PRUSI)|(1<<PRADC);  //Switch off usi and adc for save Power\r
 163         OWINIT();\r
 164         \r
 165         pack.zero=0;\r
 166         counters.c32[0]=0;\r
 167         counters.c32[2]=0;\r
 168         counters.c32[1]=0;\r
 169         counters.c32[3]=0;\r
 170         changefromeeprom=1;\r
 171         ACSR|=(1<<ACD);  //Disable Comparator\r
 172         ADCSRB|=(1<<ACME); //Disable Analog multiplexer\r
 173         MCUCR &=~(1<<PUD); //All Pins Pullup...\r
 174         \r
 175 #if  defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__)  || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__)  || defined(__AVR_ATtiny84A__)\r
 176 \r
 177         PORTB|=0xFF-(1<<PINB2); //Make PullUp an all Pins but not OW_PIN\r
 178         PORTA|=0xFF;\r
 179         PORTA&=~(1<<PINA2); //AIN1 \r
 180 #ifndef _CPULLUP_\r
 181         PORTA&=~((1<<PINA4)|(1<<PINA5));\r
 182         PORTA&=~((1<<PINA6)|(1<<PINA7));\r
 183  #endif\r
 184 \r
 185         GIMSK|=(1<<PCIE0);\r
 186         PCMSK0=(1<<PCINT4)|(1<<PCINT5)\r
 187                 |(1<<PCINT6)|(1<<PCINT7);\r
 188                         \r
 189         \r
 190         istat=PINB;\r
 191 #endif\r
 192 \r
 193         EEARH=0;\r
 194                 \r
 195         uint8_t addr;\r
 196         \r
 197         if (testSW()) {  //Jumper gesetzt ->Ruecksetzen\r
 198                 for(uint8_t i=0;i<16;i++) {\r
 199                         while(EECR & (1<<EEPE));\r
 200                         EECR = (0<<EEPM1)|(0<<EEPM0);\r
 201                         EEARL = i;\r
 202                         EEDR = 0;\r
 203                         EECR |= (1<<EEMPE);\r
 204                         EECR |= (1<<EEPE);\r
 205                 }       \r
 206         }       \r
 207         \r
 208         \r
 209         for(uint8_t i=0;i<16;i++) {\r
 210                 addr=i^0x0C;\r
 211                 while(EECR & (1<<EEPE));   \r
 212                 EEARL=i;\r
 213                 EECR |= (1<<EERE);\r
 214                 counters.c8[addr]=EEDR;\r
 215         }\r
 216         changefromeeprom=0;  //Daten neu eingelesen\r
 217         for (uint8_t i=0;i<4;i++) {\r
 218                 if (counters.c32[i]==0xFFFFFFFF) {\r
 219                         counters.c32[i]=0;\r
 220                         changefromeeprom=1;  //Daten geaendert\r
 221                 }\r
 222                         //counters.c32[i]=0;\r
 223         }\r
 224         \r
 225 \r
 226                 /*for(uint8_t i=0;i<16;i++) {\r
 227                         while(EECR & (1<<EEPE));\r
 228                         EECR = (1<<EEPM0);\r
 229                         EEARL = i;\r
 230                         EECR |= (1<<EEMPE);\r
 231                         EECR |= (1<<EEPE);\r
 232                 }*/\r
 233         \r
 234    \r
 235 \r
 236 \r
 237         DIDR0|=(1<<ADC2D)|(1<<ADC1D); // Disable Digital input on Analog AIN0/AIN1  (PINA1 / PINA2)\r
 238         ACSR&=~(1<<ACD);\r
 239         ACSR|=(1<<ACIE)|(1<<ACIS1)|(1<<ACIS0)|(1<<ACBG); //Enabble comperator interrupt Rising edge....(1<<ACIS0)\r
 240 \r
 241         sei();\r
 242         DDRB|=(1<<PINB1);\r
 243         PORTB&=~(1<<PINB1);\r
 244     while(1)   {\r
 245                 \r
 246                 MCUCR|=(1<<SE);\r
 247                 MCUCR&=~(1<<SM1); \r
 248                 asm("SLEEP");\r
 249    }\r
 250 }