--- /dev/null
+
+// Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the
+// distribution.
+// * All advertising materials mentioning features or use of this
+// software must display the following acknowledgement: This product
+// includes software developed by tm3d.de and its contributors.
+// * Neither the name of tm3d.de nor the names of its contributors may
+// be used to endorse or promote products derived from this software
+// without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#define _4_COUNTERS_
+#define _EEPROM_SAVE_
+//#define _CPULLUP_
+
+#define F_CPU 8000000UL
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <avr/wdt.h>
+#include <avr/sleep.h>
+#include "../common/I2C/USI_TWI_Master.h"
+#include "../common/I2C/BMP280.h"
+
+
+
+extern void OWINIT();
+extern void EXTERN_SLEEP();
+
+uint8_t owid[8]={0x1D, 0xA2, 0xD9, 0x84, 0x00, 0x26, 0x02, 0x5C};/**/
+uint8_t config_info[16]={0x09,0x0D,0x09,0x0D,0x01,0x08,0x02,0x08,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+
+
+
+extern volatile uint8_t mode;
+extern uint8_t gcontrol;
+extern uint8_t reset_indicator;
+
+
+volatile uint8_t wdcounter;
+
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
+ISR(WATCHDOG_vect) {
+#else
+ISR(WDT_vect) {
+#endif
+ wdcounter++;
+ //if (reset_indicator==1) reset_indicator++;
+ //else if (reset_indicator==2) mode=0;
+}
+
+
+typedef union {
+ volatile uint8_t bytes[45];
+ struct {
+ uint16_t addr;
+ uint8_t status;
+ uint8_t scratch[32];//3
+ uint32_t counter; //35
+ uint32_t zero; //39
+ uint16_t crc; //43
+ };
+} counterpack_t;
+counterpack_t pack;
+
+volatile uint8_t lastcps;
+typedef union {
+ uint32_t c32[4];
+ uint8_t c8[16];
+} counters_t;
+
+volatile counters_t counters;
+
+volatile uint8_t istat;
+
+
+volatile uint8_t wdcounter;
+
+int main(void){
+ PRR|=(1<<PRADC); // adc for save Power
+ PORTA=0xFF;
+ PORTB=0xFF-(1<<PORTB0); //Schalter kann gegen Masse sein und zieht dann immer Strom
+ DDRB|=(1<<PORTB0); //Als Ausgang und 0
+
+
+ OWINIT();
+
+ ACSR|=(1<<ACD); //Disable Comparator
+ ADCSRB|=(1<<ACME); //Disable Analog multiplexer
+ MCUCR &=~(1<<PUD); //All Pins Pullup...
+ MCUCR |=(1<<BODS);
+
+
+ WDTCSR |= ((1<<WDCE) ); // Enable the WD Change Bit//| (1<<WDE)
+ WDTCSR |= (1<<WDIE) | // Enable WDT Interrupt
+ (1<<WDP3) | (1<<WDP0); // Set Timeout to ~8 seconds
+
+
+ pack.zero=0;
+ counters.c32[0]=0;
+ counters.c32[2]=0;
+ counters.c32[1]=0;
+ counters.c32[3]=0;
+ ACSR|=(1<<ACD); //Disable Comparator
+ ADCSRB|=(1<<ACME); //Disable Analog multiplexer
+ MCUCR &=~(1<<PUD); //All Pins Pullup...
+
+ USI_TWI_Master_Initialise();
+ bmp280Init();
+
+ uint32_t P;
+ int32_t t;
+ bmp280ConvertInt(&t,&P,1);
+ _delay_ms(200);
+ bmp280ConvertInt(&t,&P,1);
+ counters.c32[3]=P;
+ counters.c32[2]=t;
+ wdcounter=100;
+ sei();
+ while(1) {
+
+ if (wdcounter>2) {
+ bmp280ConvertInt(&t,&P,1);
+ while (mode!=0) ;
+ cli();
+ counters.c32[3]=P;
+ counters.c32[2]=t;
+ sei();
+
+ wdcounter=0;
+ }
+
+ if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0)) {
+ MCUCR|=(1<<SE)|(1<<SM1);
+ MCUCR&=~(1<<ISC01);
+ } else {
+ MCUCR|=(1<<SE);
+ MCUCR&=~(1<<SM1);
+ }
+ asm("SLEEP");
+ }
+}
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