X-Git-Url: http://git.smho.de/gw/?p=owSlave2.git;a=blobdiff_plain;f=common%2FI2C%2FCDM7160.c;fp=common%2FI2C%2FCDM7160.c;h=65fc39329c87bddaf1efac78581e02625f44abdc;hp=0000000000000000000000000000000000000000;hb=22b81b6c288ca56f58d064627c310e437f9453a4;hpb=b57c0ca6b523661b0d4e4a0bfb3626df890dfb99

diff --git a/common/I2C/CDM7160.c b/common/I2C/CDM7160.c
new file mode 100644
index 0000000..65fc393
--- /dev/null
+++ b/common/I2C/CDM7160.c
@@ -0,0 +1,137 @@
+// 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
+#include <avr/io.h>
+
+#include <util/delay.h>
+
+
+#include "USI_TWI_Master.h"
+#include "CDM7160.h"
+
+
+
+
+uint16_t CDM7160getCO2_() {
+	volatile uint8_t b1,b2;
+	while((PINA&(1<<PINA0))!=0);
+	I2c_StartCondition();
+	I2c_WriteByte(0b11010010);
+	I2c_WriteByte(0x03);
+	I2c_StartCondition();
+	I2c_WriteByte (0b11010011);
+	b1 =I2c_ReadByte(ACK);
+	b2 =I2c_ReadByte(NO_ACK);
+	I2c_StopCondition();
+	
+	return b1|(b2<<8);
+	
+	
+
+}
+uint16_t CDM7160getCO2() {
+	volatile uint8_t b[16],i;
+	while((PINA&(1<<PINA0))!=0);
+	I2c_StartCondition();
+	I2c_WriteByte(0b11010010);
+	I2c_WriteByte(0x00);
+	I2c_StartCondition();
+	I2c_WriteByte (0b11010011);
+	for(i=0;i<15;i++) {
+		b[i] =I2c_ReadByte(ACK);
+	}
+	b[15] =I2c_ReadByte(NO_ACK);
+	I2c_StopCondition();
+	
+	return b[3]|(b[4]<<8);
+	
+	
+
+}
+
+void CDM7160setMode(uint8_t mode) {
+	while((PINA&(1<<PINA0))!=0);
+	I2c_StartCondition();
+	I2c_WriteByte(0b11010010);
+	I2c_WriteByte(0x01);
+	I2c_StartCondition();
+	I2c_WriteByte (0b11010011);
+	uint8_t b =I2c_ReadByte(NO_ACK);
+	I2c_StopCondition();
+	_delay_ms(2);
+	b&=0xFC;
+	b|=(mode<<1)&0x3;
+	I2c_StartCondition();
+	I2c_WriteByte(0b11010010);
+	I2c_WriteByte(0x01);
+	I2c_WriteByte(b);
+	I2c_StopCondition();
+}
+
+void CDM7160softReset() {
+	while((PINA&(1<<PINA0))!=0);
+	I2c_StartCondition();
+	I2c_WriteByte(0b11010010);
+	I2c_WriteByte(0x00);
+	I2c_WriteByte(0x01);
+	I2c_StopCondition();
+}
+
+
+void CDM7160setFMode(uint8_t fmode) //Set Filtermode 0 average, 1 IIR
+{
+	while((PINA&(1<<PINA0))!=0);
+	I2c_StartCondition();
+	I2c_WriteByte(0b11010010);
+	I2c_WriteByte(0x01);
+	I2c_StartCondition();
+	I2c_WriteByte (0b11010011);
+	volatile uint8_t b =I2c_ReadByte(NO_ACK);
+	I2c_StopCondition();
+	_delay_ms(2);
+	b&=0xFB;
+	b|=((fmode&1)<<2);
+	I2c_StartCondition();
+	I2c_WriteByte(0b11010010);
+	I2c_WriteByte(0x01);
+	I2c_WriteByte(b);
+	I2c_StopCondition();
+}
+void CDM7160setAvCount(uint8_t count) {//Set the Averaging count
+	while((PINA&(	1<<PINA0))!=0);
+	I2c_StartCondition();
+	I2c_WriteByte(0b11010010);
+	I2c_WriteByte(0x07);
+	I2c_WriteByte(count&0x3F);
+	I2c_StopCondition();
+
+};