ADS1232.h

00001 /*
00002   ADS1232.h - Library for reading from a ADS1232 24-bit ADC.
00003   Created by Jeffrey M. Kubascik, June 28, 2016.
00004   Released into the public domain.
00005 */
00006 #ifndef ADS1232_h
00007 #define ADS1232_h
00008 
00009 #include <mbed.h>
00010 
00011 
00012 typedef void (*cbptr_t)(void);
00013 
00014 typedef enum
00015 {
00016     IDLE,           // No operation currently ongoing
00017     CLEARING,       // In the process of clearing the display
00018     WRITING,        // In the process of sending a display update
00019     WAIT_CLEAR,     // Going to clear after CS pin timeout
00020     WAIT_WRITE,     // Going to write after CS pin timeout
00021     TRANSFERS_DONE, // Last transfer in progress
00022     DONE            // Done with transmission, waiting for CS pin to become high
00023 } ADS1232_state_t;
00024 
00025 typedef enum
00026 {
00027     GAIN1 = 1,
00028     GAIN2,
00029     GAIN64,
00030     GAIN128
00031 } Gain;
00032 
00033 typedef enum
00034 {
00035     SLOW = 0,
00036     FAST
00037 } Speed;
00038 
00039 typedef enum
00040 {
00041     AIN1 = 0,
00042     AIN2,
00043     TEMP
00044 } Channel;
00045 
00046 //namespace twtg {
00047 
00048 class ADS1232
00049 {
00050 public:
00051 
00052     //ADS1232(PinName pin_sck, PinName pin_din_rdy, PinName pin_pdwn, PinName pin_gain0, PinName pin_gain1, PinName pin_speed, PinName pin_a0, PinName pin_temp);
00053     ADS1232(PinName pin_sck, PinName pin_din_rdy, PinName pin_pdwn);
00054 
00055     void attach(void);
00056     void detach(void);
00057 
00058     // void setGain(Gain gain);
00059     // void setSpeed(Speed speed);
00060     // void setChannel(Channel channel);
00061 
00062     int32_t read(void);
00063 
00064 private:
00065     void waitDataReady(void);
00066 
00067     PinName _pin_sck;
00068     PinName _pin_din_rdy;
00069     PinName _pin_pdwn;
00070     // PinName _pin_gain0;
00071     // PinName _pin_gain1;
00072     // PinName _pin_speed;
00073     // PinName _pin_a0;
00074     // PinName _pin_temp;
00075 
00076     Channel currentChannel;
00077     Gain currentGain;
00078     Speed currentSpeed;
00079 
00080     bool configChanged;
00081 };
00082 
00083 //} // namespace twtg
00084 
00085 #endif /* #ifndef ADS1232_h */