Diff: AD7730.h

Revision:

0:c584a588c24f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AD7730.h	Fri Dec 16 20:31:01 2011 +0000
@@ -0,0 +1,85 @@
+#ifndef AD7730_H
+#define AD7730_H
+
+#include "mbed.h"
+
+class AD7730{
+
+    public:
+        AD7730(PinName mosi, PinName miso, PinName sclk, PinName ready, PinName cs);
+        ~AD7730(void);
+        
+        int readRegistry(int registry);
+        int writeRegistry(int registry, int value);
+        int initialize(void);
+        int systemLowCal(double wgt);
+        int systemHighCal(double wgt, double fullScale);
+        int read();
+        int startConversion(bool wait); 
+        void setFilter(int SF, bool chop, int filter2);
+        void setFilterSF(int SF);
+        void setFilterMode(int mode);
+        void setFilterChop(int enabled);
+        void reset(bool fullReset);
+        int adjustDAC(int direction);
+        void start(void);
+        void stop(void);
+        bool isReady(void);
+        double getHz(void);
+
+    
+    private:
+    
+        SPI _spi;
+        DigitalOut _cs;
+        DigitalIn _readyDig;
+        DigitalOut _LED3;
+        InterruptIn *_interruptReady;
+        PinName  _readyPin;
+        double _fullScaleWeight;
+        double _minWeight;
+        double _maxWeight;
+        int _readBuffer[100];
+        int _bufferCount;
+        int _lastValue;
+        bool _continous;
+        int _frequency;
+        Timer _tmr;
+        
+        //Registry value constants
+        static const int STATUS_REG = 0;
+        static const int DATA_REG = 1;
+        static const int MODE_REG = 2;
+        static const int FILTER_REG = 3;
+        static const int DAC_REG = 4;
+        static const int OFFSET_REG = 5;
+        static const int GAIN_REG = 6;
+        static const int TEST_REG = 7;
+        
+        //define empty spi command
+        static const int EMPTY_SPI = 0xFF;
+        
+        //internal registries
+        int _mode;
+        int _filter;
+        int _dac;
+        int _offset;
+        int _gain;
+        
+        
+        //timing variables
+        Timer _exeTmr;
+        int _exeTime;
+        
+        //error variables
+        int _exeError;
+        
+        //private functions
+        int internalZeroCal(void);
+        int internalFullCal(void); 
+        void interruptRead(void);       
+        
+        
+};
+
+#endif