-// 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 F_CPU 8000000UL
-#define FP_CALC
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include <avr/wdt.h>
-#include <avr/sleep.h>
-
-extern void OWINIT();
-
-
-uint8_t owid[8]={0x26, 0xA2, 0xD9, 0x84, 0xDD, 0xDD, 0x05, 0xCE};/**/
-uint8_t config_info[16]={0x01,0x06, 0x05,0x08, 0x04,0x07, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-
-
-extern uint8_t mode;
-extern uint8_t gcontrol;
-extern uint8_t reset_indicator;
-extern uint8_t alarmflag;
-
-volatile uint8_t wdcounter;
-
-
-typedef union {
-#if defined(__AVR_ATtiny25__)
- volatile uint8_t bytes[16];
-#else
- volatile uint8_t bytes[64];
-#endif
- struct {
- uint8_t status; //1
- int16_t temp; //2
- uint16_t voltage; //4
- uint16_t current; //6
- uint8_t threshold; //8
-
- uint8_t page1[8]; //9
-#if defined(__AVR_ATtiny25__)
-#else
- uint8_t page2[8]; //17
- uint8_t page3[8]; //25
- uint8_t page4[8]; //33
- uint8_t page5[8]; //41
- uint8_t page6[8]; //49
- uint8_t page7[8]; //57
- //uint8_t crc; //65
-#endif
- };
-} pack_t;
-volatile pack_t pack;
-
-#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
-
-#define DDR_SENSOR DDRB
-#define PORT_SENSOR PORTB
-#define PIN_SENSOR PINB
-#define SENSOR PB4
-#endif
-
-#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
-#define DDR_SENSOR DDRA
-#define PORT_SENSOR PORTA
-#define PIN_SENSOR PINA
-#define SENSOR PINA2
-#endif
-
-
-
-#define SENSOR_sda_out DDR_SENSOR |= (1 << SENSOR)
-#define SENSOR_sda_in DDR_SENSOR &= ~(1 << SENSOR);PORT_SENSOR |= (1 << SENSOR) // release sda => hi in consequence of pullup
-#define SENSOR_sda_low PORT_SENSOR &= ~(1 << SENSOR)
-#define SENSOR_is_hi PIN_SENSOR & (1 << SENSOR)
-#define SENSOR_is_low !(PIN_SENSOR & (1 << SENSOR))
-
-volatile int16_t am2302_temp;
-volatile uint16_t am2302_hum;
-
-
-uint8_t am_wait(uint8_t _time,uint8_t _signal){
- TCNT1=0;
- while(TCNT1==0);
- if (_signal)
- while((SENSOR_is_hi)&&(TCNT1<_time)) {}
- else
- while((SENSOR_is_low)&&(TCNT1<_time)) {}
-
- if (TCNT1>=_time) {return 1;}
- return 0;
-}
-
-volatile uint8_t am2302_mode=0;
-volatile uint8_t timeout=0;
-
-
-
-#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
- sleep_disable(); // Disable Sleep on Wakeup
- am2302_mode++;
- if (reset_indicator==1) reset_indicator++;
- else if (reset_indicator==2) mode=0;
-/* if (timeout==2) {
- DIS_TIMER;
- EN_OWINT;
- mode=OWM_SLEEP;
- }
- timeout++;*/
- sleep_enable(); // Enable Sleep Mode
-
-}
-
-int testSW() {
- uint8_t r;
- DDRB&=~(1<<PORTB0); //Eingang
- __asm__ __volatile__ ("nop");
- PORTB|=(1<<PORTB0); //Pullup
- __asm__ __volatile__ ("nop");
- __asm__ __volatile__ ("nop");
- __asm__ __volatile__ ("nop");
- __asm__ __volatile__ ("nop");
- __asm__ __volatile__ ("nop");
- r=PINB&(1<<PORTB0);
- __asm__ __volatile__ ("nop");
- PORTB&=~(1<<PORTB0);
- __asm__ __volatile__ ("nop");
- DDRB|=(1<<PORTB0); //Eingang
- return (r==0);
-
-
-}
-
-uint8_t am2302_1() {
- int16_t lam2302_temp;
- uint16_t lam2302_hum;
- uint8_t rSREG;
- uint8_t sensor_data[5];
-#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
- TCCR1=(1<<CS12); //Clock/8 1µs
-#endif
-
-#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
- TCCR1B=(1<<CS11); //Clock/8 1µs
-#endif
- SENSOR_sda_out;
- SENSOR_sda_low; // MCU start signal
- TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)
- TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)
- SENSOR_sda_in;
- if (am_wait(200,1)) return 2;
-
- // AM2302 response signal min: 75us typ:80us max:85us
- if (am_wait(100,0)) return 3;
- if (am_wait(100,1)) return 4;
-
- for(uint8_t i = 0; i < 5; i++) {
- uint8_t sensor_byte = 0;
- for(uint8_t j = 1; j <= 8; j++) {// get 8 bits from sensor
- if (am_wait(88,0)) return 5;
-
- TCNT1=0;while(TCNT1==0);;while(TCNT1<35) ;
- sensor_byte <<= 1; // add new lower byte
- if (SENSOR_is_hi) {// if sda high after 30us => bit=1 else bit=0
- sensor_byte |= 1;
- if (am_wait(45,1)) return 6;// 30us - 75us = 45us
- }
- }
- sensor_data[i] = sensor_byte;
- }
-
- // checksum
- if ( ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ) != sensor_data[4])
- {
- // debug output
- //printf("%b %b %b %b %b %b" CR, sensor_data[0], sensor_data[1], sensor_data[2], sensor_data[3], sensor_data[4], ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ));
- PORTB&=~(1<<PINB0);
- return 7;
- }
- if (!testSW()) {
-#ifdef FP_CALC
- double htemp;
- if (sensor_data[2]&0x80) { //min
- sensor_data[2]&=~(0x80);
- htemp=-((sensor_data[2]<<8) + sensor_data[3]);
- } else
- htemp=((sensor_data[2]<<8) + sensor_data[3]);
- double hhum=(1.0546-0.000216*htemp)*((sensor_data[0]<<8) + sensor_data[1]);
-
- lam2302_hum=0.318*hhum +76;
- lam2302_temp=htemp*25.6;
-#else
-
- if (sensor_data[2]&0x80) { //minus
- sensor_data[2]&=~(0x80);
- lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3]);
- } else
- lam2302_temp=((sensor_data[2]<<8) + sensor_data[3]);
-
- lam2302_hum=((sensor_data[0]<<8) + sensor_data[1]);
- volatile uint32_t h1=lam2302_temp*lam2302_hum*3/44803;
- lam2302_hum=lam2302_hum*16/49-h1+80;
- //lam2302_temp=lam2302_temp*128/5;
-
- int16_t h2=lam2302_temp%5;
- lam2302_temp=lam2302_temp/5;
- lam2302_temp*=128;
- lam2302_temp+=h2*128/5;
-#endif
- config_info[5]=7;
- }
- else {
- if (sensor_data[2]&0x80) { //minus
- sensor_data[2]&=~(0x80);
- lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3]);
- } else
- lam2302_temp=((sensor_data[2]<<8) + sensor_data[3])*25.6;;
-
- lam2302_hum=((sensor_data[0]<<8) + sensor_data[1]);
- config_info[5]=12;
- }
- rSREG=SREG;
- cli();
- am2302_hum=lam2302_hum;
- am2302_temp=lam2302_temp;
- SREG=rSREG;
- return 0;
-}
-
-
-uint8_t am2302_2() { //4mhz
- int16_t lam2302_temp;
- uint16_t lam2302_hum;
- uint8_t rSREG;
- uint8_t sensor_data[5];
- #if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
- TCCR1=(1<<CS11)|(1<<CS10); //Clock/8 1µs
- #endif
-
- #if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
- TCCR1B=(1<<CS11); //Clock/8 1µs
- #endif
- SENSOR_sda_out;
- SENSOR_sda_low; // MCU start signal
- TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)
- TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)
- SENSOR_sda_in;
- if (am_wait(200,1)) return 2;
-
- // AM2302 response signal min: 75us typ:80us max:85us
- if (am_wait(100,0)) return 3;
- if (am_wait(100,1)) return 4;
-
- for(uint8_t i = 0; i < 5; i++) {
- uint8_t sensor_byte = 0;
- for(uint8_t j = 1; j <= 8; j++) {// get 8 bits from sensor
- if (am_wait(88,0)) return 5;
-
- TCNT1=0;while(TCNT1==0);;while(TCNT1<35) ;
- sensor_byte <<= 1; // add new lower byte
- if (SENSOR_is_hi) {// if sda high after 30us => bit=1 else bit=0
- sensor_byte |= 1;
- if (am_wait(45,1)) return 6;// 30us - 75us = 45us
- }
- }
- sensor_data[i] = sensor_byte;
- }
-
- // checksum
- if ( ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ) != sensor_data[4])
- {
- // debug output
- //printf("%b %b %b %b %b %b" CR, sensor_data[0], sensor_data[1], sensor_data[2], sensor_data[3], sensor_data[4], ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ));
- PORTB&=~(1<<PINB0);
- return 7;
- }
-#ifdef FP_CALC
- lam2302_hum=0.318* ((sensor_data[0]<<8) + sensor_data[1])+76;
- if (sensor_data[2]&0x80) { //minus
- sensor_data[2]&=~(0x80);
- lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3])*25.6;
- } else
- lam2302_temp=((sensor_data[2]<<8) + sensor_data[3])*25.6;
-#else
-
-
- if (sensor_data[2]&0x80) { //minus
- sensor_data[2]&=~(0x80);
- lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3]);
- } else
- lam2302_temp=((sensor_data[2]<<8) + sensor_data[3]);
-
- lam2302_hum=((sensor_data[0]<<8) + sensor_data[1]);
- volatile uint32_t h1=lam2302_temp*lam2302_hum*3/44803;
- lam2302_hum=lam2302_hum*16/49-h1+80;
- //lam2302_temp=lam2302_temp*128/5;
-
- int16_t h2=lam2302_temp%5;
- lam2302_temp=lam2302_temp/5;
- lam2302_temp*=128;
- lam2302_temp+=h2*128/5;
-#endif
-
-
- rSREG=SREG;
- cli();
- am2302_hum=lam2302_hum;
- am2302_temp=lam2302_temp;
- SREG=rSREG;
- return 0;
-}
-
-
-
-int main(void){
- PRR|=(1<<PRUSI)|(1<<PRADC); //Switch off usi and adc for save Power
-#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
- PORTA=0xFF;
- PORTB=0xFF-(1<<PORTB0); //Schalter kann gegen Masse sein und zieht dann immer Strom
- DDRB|=(1<<PORTB0); //Als Ausgang und 0
-#endif
- OWINIT();
-
- ACSR|=(1<<ACD); //Disable Comparator
- ADCSRB|=(1<<ACME); //Disable Analog multiplexer
- MCUCR &=~(1<<PUD); //All Pins Pullup...
- MCUCR |=(1<<BODS);
- MCUCR &=~(1<<PUD);
-
-#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
-
- PORTB|=(1<<PINB0)|(1<<PINB1)|(1<<PINB3)|(1<<PINB4)|(1<<PINB5);
- DDRB|=(1<<PINB1); //DBLINE
-#define SENSON PORTB|=(1<<PINB0);
-#define SENSOFF PORTB&=~(1<<PINB0);
- DDRB|=(1<<PINB0); //stromversorgung
-
- // Set up Watch Dog Timer for Inactivity
- WDTCR |= ((1<<WDCE) | (1<<WDE)); // Enable the WD Change Bit
- WDTCR = (1<<WDIE) | // Enable WDT Interrupt
- (1<<WDP2) | (1<<WDP1); // Set Timeout to ~2 seconds
-#endif
-
-#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
-
-
- DDRA|=(1<<PINA1); //stromversorgung
-#define SENSON PORTA|=(1<<PINA1);
-#define SENSOFF PORTA&=~(1<<PINA1);
-
- // Set up Watch Dog Timer for Inactivity
- WDTCSR |= (1<<WDCE) ; // Enable the WD Change Bit
- WDTCSR = (1<<WDIE) | // Enable WDT Interrupt
- (1<<WDP2) | (1<<WDP1); // Set Timeout to ~2 seconds
-#endif
-
-
- uint8_t i;
- uint8_t err;
-#if defined(__AVR_ATtiny25__)
- for(i=0;i<16;i++) pack.bytes[i]=0;
-#else
- uint8_t pn=1;
- for(i=0;i<64;i++) pack.bytes[i]=0;
-#endif
- //pack.bytes[0]=1;
- //pack.bytes[1]=2;
- SENSON
- _delay_ms(4000);
- err =am2302_1();
- sei();
- while(1) {
- alarmflag=1;
- if (am2302_mode==2) {
- err=am2302_1();
- if (err!=0) {
-#if defined(__AVR_ATtiny25__)
-#else
- pack.page3[pn]=err;
- pn=pn+1;if (pn>31) pn=1;
-#endif
- }
- SENSOFF
- am2302_mode=3;
- }
- if (am2302_mode>=8) {
- am2302_mode=0;
- SENSON
- }
-#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
- if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))
-#endif
-#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
- if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))
-#endif
- {
-// CLKPR=(1<<CLKPCE);
- // CLKPR=(1<<CLKPS2); /*0.5Mhz*/
- //PORTB&=~(1<<PINB1);
- MCUCR|=(1<<SE)|(1<<SM1);
- MCUCR&=~(1<<ISC01);
- } else {
- MCUCR|=(1<<SE);
- MCUCR&=~(1<<SM1);
- }
- asm("SLEEP");
- }
-
-
+// Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de\r
+// All rights reserved.\r
+//\r
+// Redistribution and use in source and binary forms, with or without\r
+// modification, are permitted provided that the following conditions are\r
+// met:\r
+//\r
+// * Redistributions of source code must retain the above copyright\r
+// notice, this list of conditions and the following disclaimer.\r
+// * Redistributions in binary form must reproduce the above copyright\r
+// notice, this list of conditions and the following disclaimer in the\r
+// documentation and/or other materials provided with the\r
+// distribution.\r
+// * All advertising materials mentioning features or use of this\r
+// software must display the following acknowledgement: This product\r
+// includes software developed by tm3d.de and its contributors.\r
+// * Neither the name of tm3d.de nor the names of its contributors may\r
+// be used to endorse or promote products derived from this software\r
+// without specific prior written permission.\r
+//\r
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\r
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\r
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\r
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\r
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\r
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\r
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\r
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\r
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\r
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+\r
+\r
+#define F_CPU 8000000UL\r
+#define FP_CALC\r
+#include <avr/io.h>\r
+#include <avr/interrupt.h>\r
+#include <util/delay.h>\r
+#include <avr/wdt.h>\r
+#include <avr/sleep.h>\r
+\r
+extern void OWINIT();\r
+\r
+\r
+uint8_t owid[8]={0x26, 0xA2, 0xD9, 0x84, 0xDD, 0xDD, 0x05, 0xCE};/**/\r
+uint8_t config_info[16]={0x01,0x06, 0x05,0x08, 0x04,0x07, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00};\r
+ \r
+\r
+extern uint8_t mode;\r
+extern uint8_t gcontrol;\r
+extern uint8_t reset_indicator;\r
+extern uint8_t alarmflag;\r
+\r
+volatile uint8_t wdcounter;\r
+\r
+\r
+typedef union {\r
+#if defined(__AVR_ATtiny25__)\r
+ volatile uint8_t bytes[16];\r
+#else\r
+ volatile uint8_t bytes[64];\r
+#endif\r
+ struct {\r
+ uint8_t status; //1\r
+ int16_t temp; //2\r
+ uint16_t voltage; //4\r
+ uint16_t current; //6\r
+ uint8_t threshold; //8\r
+ \r
+ uint8_t page1[8]; //9\r
+#if defined(__AVR_ATtiny25__)\r
+#else\r
+ uint8_t page2[8]; //17\r
+ uint8_t page3[8]; //25\r
+ uint8_t page4[8]; //33\r
+ uint8_t page5[8]; //41\r
+ uint8_t page6[8]; //49\r
+ uint8_t page7[8]; //57\r
+ //uint8_t crc; //65\r
+#endif\r
+ };\r
+} pack_t;\r
+volatile pack_t pack;\r
+\r
+#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)\r
+\r
+#define DDR_SENSOR DDRB \r
+#define PORT_SENSOR PORTB\r
+#define PIN_SENSOR PINB\r
+#define SENSOR PB4\r
+#endif\r
+\r
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)\r
+#define DDR_SENSOR DDRA\r
+#define PORT_SENSOR PORTA\r
+#define PIN_SENSOR PINA\r
+#define SENSOR PINA2\r
+#endif\r
+\r
+\r
+\r
+#define SENSOR_sda_out DDR_SENSOR |= (1 << SENSOR)\r
+#define SENSOR_sda_in DDR_SENSOR &= ~(1 << SENSOR);PORT_SENSOR |= (1 << SENSOR) // release sda => hi in consequence of pullup\r
+#define SENSOR_sda_low PORT_SENSOR &= ~(1 << SENSOR)\r
+#define SENSOR_is_hi PIN_SENSOR & (1 << SENSOR)\r
+#define SENSOR_is_low !(PIN_SENSOR & (1 << SENSOR))\r
+\r
+volatile int16_t am2302_temp;\r
+volatile uint16_t am2302_hum;\r
+\r
+\r
+uint8_t am_wait(uint8_t _time,uint8_t _signal){\r
+ TCNT1=0;\r
+ while(TCNT1==0);\r
+ if (_signal) \r
+ while((SENSOR_is_hi)&&(TCNT1<_time)) {}\r
+ else\r
+ while((SENSOR_is_low)&&(TCNT1<_time)) {}\r
+ \r
+ if (TCNT1>=_time) {return 1;}\r
+ return 0;\r
+}\r
+\r
+volatile uint8_t am2302_mode=0; \r
+volatile uint8_t timeout=0;\r
+\r
+\r
+\r
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)\r
+ISR(WATCHDOG_vect) {\r
+#else\r
+ISR(WDT_vect) {\r
+#endif \r
+ sleep_disable(); // Disable Sleep on Wakeup\r
+ am2302_mode++;\r
+ if (reset_indicator==1) reset_indicator++;\r
+ else if (reset_indicator==2) mode=0;\r
+/* if (timeout==2) {\r
+ DIS_TIMER;\r
+ EN_OWINT;\r
+ mode=OWM_SLEEP;\r
+ }\r
+ timeout++;*/\r
+ sleep_enable(); // Enable Sleep Mode\r
+\r
+}\r
+\r
+int testSW() {\r
+ uint8_t r;\r
+ DDRB&=~(1<<PORTB0); //Eingang\r
+ __asm__ __volatile__ ("nop");\r
+ PORTB|=(1<<PORTB0); //Pullup\r
+ __asm__ __volatile__ ("nop");\r
+ __asm__ __volatile__ ("nop");\r
+ __asm__ __volatile__ ("nop");\r
+ __asm__ __volatile__ ("nop");\r
+ __asm__ __volatile__ ("nop");\r
+ r=PINB&(1<<PORTB0);\r
+ __asm__ __volatile__ ("nop");\r
+ PORTB&=~(1<<PORTB0);\r
+ __asm__ __volatile__ ("nop");\r
+ DDRB|=(1<<PORTB0); //Eingang\r
+ return (r==0);\r
+ \r
+ \r
+} \r
+ \r
+uint8_t am2302_1() {\r
+ int16_t lam2302_temp;\r
+ uint16_t lam2302_hum;\r
+ uint8_t rSREG;\r
+ uint8_t sensor_data[5];\r
+#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)\r
+ TCCR1=(1<<CS12); //Clock/8 1µs\r
+#endif\r
+\r
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)\r
+ TCCR1B=(1<<CS11); //Clock/8 1µs\r
+#endif\r
+ SENSOR_sda_out;\r
+ SENSOR_sda_low; // MCU start signal\r
+ TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)\r
+ TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)\r
+ SENSOR_sda_in;\r
+ if (am_wait(200,1)) return 2;\r
+\r
+ // AM2302 response signal min: 75us typ:80us max:85us\r
+ if (am_wait(100,0)) return 3;\r
+ if (am_wait(100,1)) return 4;\r
+ \r
+ for(uint8_t i = 0; i < 5; i++) {\r
+ uint8_t sensor_byte = 0;\r
+ for(uint8_t j = 1; j <= 8; j++) {// get 8 bits from sensor\r
+ if (am_wait(88,0)) return 5;\r
+ \r
+ TCNT1=0;while(TCNT1==0);;while(TCNT1<35) ;\r
+ sensor_byte <<= 1; // add new lower byte\r
+ if (SENSOR_is_hi) {// if sda high after 30us => bit=1 else bit=0\r
+ sensor_byte |= 1;\r
+ if (am_wait(45,1)) return 6;// 30us - 75us = 45us\r
+ }\r
+ }\r
+ sensor_data[i] = sensor_byte;\r
+ }\r
+\r
+ // checksum\r
+ if ( ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ) != sensor_data[4])\r
+ {\r
+ // debug output\r
+ //printf("%b %b %b %b %b %b" CR, sensor_data[0], sensor_data[1], sensor_data[2], sensor_data[3], sensor_data[4], ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ));\r
+ PORTB&=~(1<<PINB0);\r
+ return 7;\r
+ }\r
+ if (!testSW()) {\r
+#ifdef FP_CALC\r
+ double htemp;\r
+ if (sensor_data[2]&0x80) { //min\r
+ sensor_data[2]&=~(0x80);\r
+ htemp=-((sensor_data[2]<<8) + sensor_data[3]);\r
+ } else\r
+ htemp=((sensor_data[2]<<8) + sensor_data[3]);\r
+ double hhum=(1.0546-0.000216*htemp)*((sensor_data[0]<<8) + sensor_data[1]);\r
+ \r
+ lam2302_hum=0.318*hhum +76;\r
+ lam2302_temp=htemp*25.6;\r
+#else\r
+\r
+ if (sensor_data[2]&0x80) { //minus\r
+ sensor_data[2]&=~(0x80);\r
+ lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3]);\r
+ } else\r
+ lam2302_temp=((sensor_data[2]<<8) + sensor_data[3]);\r
+ \r
+ lam2302_hum=((sensor_data[0]<<8) + sensor_data[1]);\r
+ volatile uint32_t h1=lam2302_temp*lam2302_hum*3/44803;\r
+ lam2302_hum=lam2302_hum*16/49-h1+80;\r
+ //lam2302_temp=lam2302_temp*128/5;\r
+\r
+ int16_t h2=lam2302_temp%5;\r
+ lam2302_temp=lam2302_temp/5;\r
+ lam2302_temp*=128;\r
+ lam2302_temp+=h2*128/5;\r
+#endif \r
+ config_info[5]=7;\r
+ }\r
+ else {\r
+ if (sensor_data[2]&0x80) { //minus\r
+ sensor_data[2]&=~(0x80);\r
+ lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3]);\r
+ } else\r
+ lam2302_temp=((sensor_data[2]<<8) + sensor_data[3])*25.6;;\r
+ \r
+ lam2302_hum=((sensor_data[0]<<8) + sensor_data[1]);\r
+ config_info[5]=12;\r
+ }\r
+ rSREG=SREG;\r
+ cli();\r
+ am2302_hum=lam2302_hum;\r
+ am2302_temp=lam2302_temp;\r
+ SREG=rSREG;\r
+ return 0;\r
+}\r
+\r
+\r
+uint8_t am2302_2() { //4mhz\r
+ int16_t lam2302_temp;\r
+ uint16_t lam2302_hum;\r
+ uint8_t rSREG;\r
+ uint8_t sensor_data[5];\r
+ #if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)\r
+ TCCR1=(1<<CS11)|(1<<CS10); //Clock/8 1µs\r
+ #endif\r
+\r
+ #if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)\r
+ TCCR1B=(1<<CS11); //Clock/8 1µs\r
+ #endif\r
+ SENSOR_sda_out;\r
+ SENSOR_sda_low; // MCU start signal\r
+ TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)\r
+ TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)\r
+ SENSOR_sda_in;\r
+ if (am_wait(200,1)) return 2;\r
+\r
+ // AM2302 response signal min: 75us typ:80us max:85us\r
+ if (am_wait(100,0)) return 3;\r
+ if (am_wait(100,1)) return 4;\r
+ \r
+ for(uint8_t i = 0; i < 5; i++) {\r
+ uint8_t sensor_byte = 0;\r
+ for(uint8_t j = 1; j <= 8; j++) {// get 8 bits from sensor\r
+ if (am_wait(88,0)) return 5;\r
+ \r
+ TCNT1=0;while(TCNT1==0);;while(TCNT1<35) ;\r
+ sensor_byte <<= 1; // add new lower byte\r
+ if (SENSOR_is_hi) {// if sda high after 30us => bit=1 else bit=0\r
+ sensor_byte |= 1;\r
+ if (am_wait(45,1)) return 6;// 30us - 75us = 45us\r
+ }\r
+ }\r
+ sensor_data[i] = sensor_byte;\r
+ }\r
+\r
+ // checksum\r
+ if ( ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ) != sensor_data[4])\r
+ {\r
+ // debug output\r
+ //printf("%b %b %b %b %b %b" CR, sensor_data[0], sensor_data[1], sensor_data[2], sensor_data[3], sensor_data[4], ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ));\r
+ PORTB&=~(1<<PINB0);\r
+ return 7;\r
+ }\r
+#ifdef FP_CALC\r
+ lam2302_hum=0.318* ((sensor_data[0]<<8) + sensor_data[1])+76;\r
+ if (sensor_data[2]&0x80) { //minus\r
+ sensor_data[2]&=~(0x80);\r
+ lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3])*25.6;\r
+ } else\r
+ lam2302_temp=((sensor_data[2]<<8) + sensor_data[3])*25.6;\r
+#else\r
+\r
+\r
+ if (sensor_data[2]&0x80) { //minus\r
+ sensor_data[2]&=~(0x80);\r
+ lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3]);\r
+ } else\r
+ lam2302_temp=((sensor_data[2]<<8) + sensor_data[3]);\r
+ \r
+ lam2302_hum=((sensor_data[0]<<8) + sensor_data[1]);\r
+ volatile uint32_t h1=lam2302_temp*lam2302_hum*3/44803;\r
+ lam2302_hum=lam2302_hum*16/49-h1+80;\r
+ //lam2302_temp=lam2302_temp*128/5;\r
+\r
+ int16_t h2=lam2302_temp%5;\r
+ lam2302_temp=lam2302_temp/5;\r
+ lam2302_temp*=128;\r
+ lam2302_temp+=h2*128/5;\r
+#endif \r
+ \r
+ \r
+ rSREG=SREG;\r
+ cli();\r
+ am2302_hum=lam2302_hum;\r
+ am2302_temp=lam2302_temp;\r
+ SREG=rSREG;\r
+ return 0;\r
+}\r
+\r
+\r
+\r
+int main(void){\r
+ PRR|=(1<<PRUSI)|(1<<PRADC); //Switch off usi and adc for save Power\r
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)\r
+ PORTA=0xFF;\r
+ PORTB=0xFF-(1<<PORTB0); //Schalter kann gegen Masse sein und zieht dann immer Strom\r
+ DDRB|=(1<<PORTB0); //Als Ausgang und 0\r
+#endif\r
+ OWINIT();\r
+\r
+ ACSR|=(1<<ACD); //Disable Comparator\r
+ ADCSRB|=(1<<ACME); //Disable Analog multiplexer\r
+ MCUCR &=~(1<<PUD); //All Pins Pullup...\r
+ MCUCR |=(1<<BODS);\r
+ MCUCR &=~(1<<PUD);\r
+ \r
+#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)\r
+\r
+ PORTB|=(1<<PINB0)|(1<<PINB1)|(1<<PINB3)|(1<<PINB4)|(1<<PINB5);\r
+ DDRB|=(1<<PINB1); //DBLINE\r
+#define SENSON PORTB|=(1<<PINB0);\r
+#define SENSOFF PORTB&=~(1<<PINB0);\r
+ DDRB|=(1<<PINB0); //stromversorgung\r
+ \r
+ // Set up Watch Dog Timer for Inactivity\r
+ WDTCR |= ((1<<WDCE) | (1<<WDE)); // Enable the WD Change Bit\r
+ WDTCR = (1<<WDIE) | // Enable WDT Interrupt\r
+ (1<<WDP2) | (1<<WDP1); // Set Timeout to ~2 seconds\r
+#endif\r
+\r
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)\r
+\r
+\r
+ DDRA|=(1<<PINA1); //stromversorgung\r
+#define SENSON PORTA|=(1<<PINA1);\r
+#define SENSOFF PORTA&=~(1<<PINA1);\r
+\r
+ // Set up Watch Dog Timer for Inactivity\r
+ WDTCSR |= (1<<WDCE) ; // Enable the WD Change Bit\r
+ WDTCSR = (1<<WDIE) | // Enable WDT Interrupt\r
+ (1<<WDP2) | (1<<WDP1); // Set Timeout to ~2 seconds\r
+#endif\r
+\r
+ \r
+ uint8_t i;\r
+ uint8_t err;\r
+#if defined(__AVR_ATtiny25__)\r
+ for(i=0;i<16;i++) pack.bytes[i]=0;\r
+#else\r
+ uint8_t pn=1;\r
+ for(i=0;i<64;i++) pack.bytes[i]=0;\r
+#endif\r
+ //pack.bytes[0]=1;\r
+ //pack.bytes[1]=2;\r
+ SENSON\r
+ _delay_ms(4000);\r
+ err =am2302_1();\r
+ sei();\r
+ while(1) {\r
+ alarmflag=1;\r
+ if (am2302_mode==2) {\r
+ err=am2302_1();\r
+ if (err!=0) {\r
+#if defined(__AVR_ATtiny25__)\r
+#else\r
+ pack.page3[pn]=err;\r
+ pn=pn+1;if (pn>31) pn=1;\r
+#endif\r
+ }\r
+ SENSOFF\r
+ am2302_mode=3;\r
+ }\r
+ if (am2302_mode>=8) {\r
+ am2302_mode=0;\r
+ SENSON\r
+ }\r
+#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)\r
+ if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))\r
+#endif \r
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)\r
+ if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))\r
+#endif\r
+ {\r
+// CLKPR=(1<<CLKPCE);\r
+ // CLKPR=(1<<CLKPS2); /*0.5Mhz*/\r
+ //PORTB&=~(1<<PINB1);\r
+ MCUCR|=(1<<SE)|(1<<SM1);\r
+ MCUCR&=~(1<<ISC01);\r
+ } else {\r
+ MCUCR|=(1<<SE);\r
+ MCUCR&=~(1<<SM1);\r
+ }\r
+ asm("SLEEP");\r
+ }\r
+\r
+\r
}
\ No newline at end of file
tm3d / owSlave2.git / blobdiff