X-Git-Url: https://git.smho.de/gw/?p=owSlave2.git;a=blobdiff_plain;f=DS2438_DHT22%2FDS2438_DHT22%20-%20Kopie.c;fp=DS2438_DHT22%2FDS2438_DHT22%20-%20Kopie.c;h=bbd175ccab20a195f94a27516373b613e6af681b;hp=0000000000000000000000000000000000000000;hb=cd92472e6fd63693741f8e168123a4182802651b;hpb=0f5b4d994ac87afdd294f6fc79692bcf92e337de

diff --git a/DS2438_DHT22/DS2438_DHT22 - Kopie.c b/DS2438_DHT22/DS2438_DHT22 - Kopie.c
new file mode 100644
index 0000000..bbd175c
--- /dev/null
+++ b/DS2438_DHT22/DS2438_DHT22 - Kopie.c	
@@ -0,0 +1,444 @@
+// 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");
+   }
+
+
+}
\ No newline at end of file