Diff: DS18B20Multiple/OneWireThermometer.h

Revision:

4:5213bee8158e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DS18B20Multiple/OneWireThermometer.h	Mon Apr 14 02:15:32 2014 +0000
@@ -0,0 +1,57 @@
+/*
+* OneWireThermometer. Base class for Maxim One-Wire Thermometers. 
+* Uses the OneWireCRC library.
+*
+* Copyright (C) <2010> Petras Saduikis <petras@petras.co.uk>
+*
+* This file is part of OneWireThermometer.
+*
+* OneWireThermometer is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+* 
+* OneWireThermometer is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with OneWireThermometer.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef SNATCH59_ONEWIRETHERMOMETER_H
+#define SNATCH59_ONEWIRETHERMOMETER_H
+
+#include <mbed.h>
+#include "OneWireCRC.h"
+#include "OneWireDefs.h"
+
+typedef unsigned char BYTE;    // something a byte wide
+typedef unsigned char DEVADDRESS[8];   // stores the address of one device
+
+class OneWireThermometer
+{
+public:
+    OneWireThermometer(PinName pin, int device_id);
+    
+    bool initialize();
+    float readTemperature(int device);
+    virtual void setResolution(eResolution resln) = 0; 
+    int getDeviceCount();
+
+protected:
+    OneWireCRC oneWire;
+    const int deviceId;
+    
+    eResolution resolution; 
+    BYTE address[8];
+    DEVADDRESS devices[10];
+    int deviceCount;
+   
+    void resetAndAddress();
+    bool readAndValidateData(BYTE* data);
+    virtual float calculateTemperature(BYTE* data) = 0;    // device specific
+};
+
+#endif
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