Diff: Xtra_Sensors/TFMini_i2c.h

Revision:

2:e7874762cc25

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Xtra_Sensors/TFMini_i2c.h	Mon Oct 21 17:16:11 2019 +0000
@@ -0,0 +1,143 @@
+#ifndef TFMINI_I2C_H
+#define TFMINI_I2C_H
+
+# include <cstdint>
+# include "mbed.h"
+
+# define TFMINI_ADDRESS_DEFAULT         0x10
+
+// data register address
+#define TFMINI_READ_DATA_REG_H          0x01
+#define TFMINI_READ_DATA_REG_L          0x02
+
+// general parameter register address
+#define TFMINI_RNG_GEAR_H               0x00
+#define TFMINI_RNG_GEAR_L               0x50
+
+#define TFMINI_DET_PAT_H                0x00
+#define TFMINI_DET_PAT_L                0x51
+
+#define TFMINI_SET_RNG_LIM_H            0x00
+#define TFMINI_SET_RNG_LIM_L            0x55
+
+#define TFMINI_RNG_OUT_LIM_THR_H        0x00
+#define TFMINI_RNG_OUT_LIM_THR_L        0x56
+
+#define TFMINI_STREN_THR_LOW_H          0x00
+#define TFMINI_STREN_THR_LOW_L          0x58
+
+#define TFMINI_STREN_THR_UPP_H          0x00
+#define TFMINI_STREN_THR_UPP_L          0x5A
+
+#define TFMINI_OUT_VAL_SGN_STREN_H      0x00
+#define TFMINI_OUT_VAL_SGN_STREN_L      0x5C
+
+#define TFMINI_UNIT_DIST_H              0x00
+#define TFMINI_UNIT_DIST_L              0x66
+
+// special parameter register address
+#define TFMINI_SLAVE_ADDR_H             0x00
+#define TFMINI_SLAVE_ADDR_L             0x26
+
+#define TFMINI_TRIG_MOD_H               0x00
+#define TFMINI_TRIG_MOD_L               0x27
+
+#define TFMINI_EXT_COM_TRIG_REG_H       0x01
+#define TFMINI_EXT_COM_TRIG_REG_L       0x00
+
+#define TFMINI_RESET_H                  0x00
+#define TFMINI_RESET_L                  0x70
+
+enum ranging_gear_mode_t {
+    SHORTE = 0x00,
+    MIDDLE = 0x03,
+    LONGE = 0x07,
+};
+
+enum detection_pattern_t {
+    AUTO_ = 0x00,
+    FIX = 0x01,
+};
+
+enum setting_range_limit_t {
+    ENABLED = 0x00,
+    DISABLED = 0x01,
+};
+
+enum unit_distance_t {
+    MILLIMETER = 0x00,
+    CENTIMETER = 0x01,
+};
+
+enum trigger_mode_t {
+    INTERNAL = 0x00,
+    EXTERNAL = 0x01,
+};
+
+
+class TFMini_i2c
+{
+public:
+    //  constructor
+    TFMini_i2c(I2C * i2c, const uint8_t & addr = TFMINI_ADDRESS_DEFAULT);
+
+    // deconstructor
+    virtual ~TFMini_i2c();
+
+    operator float();
+
+    // Methods
+
+public:
+
+    void initialize();
+
+    //Reading Data from TFmini-I2C
+    void readRegister( const char &reg_h, const char &reg_l, char * bufIn, const uint8_t & len );
+    void readMeasurement( uint16_t * dist, uint16_t * stren, uint8_t * mode );
+
+    // General Parameter Configuration
+    void setRangingGearMode( detection_pattern_t mode, const ranging_gear_mode_t dist = SHORTE);
+
+    void setRangeLimit( setting_range_limit_t mode, const uint16_t & threshold = 0x2EE0 );
+
+    void setLowerLimitOfSignalStrengthThreshold( uint16_t & threshold );
+
+    void setUpperLimitOfSignalStrengthThreshold( uint16_t & threshold );
+
+    void setOutputValueOfSignalStrengthThresholdAtHighestPoint(  uint16_t & val );
+
+    void setDistanceUnit( unit_distance_t unit );
+
+
+    // Special Parameter Configuration
+    void setSlaveAddress(const uint8_t &addr );
+
+    void setTriggerMode( trigger_mode_t mode );
+
+    void externalCommandTrigger( void );
+
+    void reset( void );
+
+
+private:
+
+    I2C * i2c_;
+    uint8_t addr_ ;
+
+    uint8_t waitTime_ms_;
+
+    bool isInitialized_;
+
+    void setSlaveAddrActive( void );
+
+    void write8( const char &reg_h, const char &reg_l, const uint8_t &val );
+    void write16( const char &reg_h, const char &reg_l, const uint16_t &val );
+
+    void read( const char &reg_h, const char &reg_l, char * bufIn,
+               const uint8_t &len = 0 );
+
+
+};
+
+#endif
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