cc

Dependencies:   mbed

Fork of AS5048 by Saxion Lectoraat MT

as5048spi.h

Committer:
JSpikker
Date:
2014-09-18
Revision:
0:3edcf58e51e7
Child:
2:2958500883e0

File content as of revision 0:3edcf58e51e7:

#include "mbed.h"
typedef enum {
    AS_FLAG_PARITY = 0x8000,
    AS_FLAG_READ = 0x4000,
} As5048Flag;

typedef enum {
    AS_CMD_NOP = 0x0000,
    AS_CMD_ERROR = 0x0001 | AS_FLAG_READ, // Reads error ireguster and clear error flags
    AS_CMD_DIAGNOSTICS = 0x3FFD |  AS_FLAG_READ, // Reads automatic gain control and diagnostics info
    AS_CMD_MAGNITUDE = 0x3FFE | AS_FLAG_READ,
    
    AS_CMD_ANGLE = 0x3FFF| AS_FLAG_PARITY | AS_FLAG_READ,
} As5048Command;



class As5048Spi
{
public:
    As5048Spi(PinName mosi, PinName miso, PinName sclk, PinName chipselect, int nDevices = 1);
    ~As5048Spi();
    
    bool error(int device = -1);
    void frequency(int frequency = 1000000);
    const int* read(As5048Command command);
    const int* read_sequential(As5048Command command);
    
    const int* read_angle();
    const int* read_angle_sequential();

    
    static int mask(int sensor_result);
   
    static bool parity_check(int sensor_result);
    static int degrees(int sensor_result);
    static int radian(int sensor_result);
    

protected:
    int _nDevices;
    DigitalOut _chipSelectN;
    SPI _spi;
    
    int* _readBuffer; // Stores the results of the last sequential read
    
    int* _read(As5048Command command);
};