Diff: ADXL35x/ADXL355.h

Revision:

7:5aaa09c40283

Parent:

6:45d2393ef468

Child:

8:9e6ead2ee8d7

--- a/ADXL35x/ADXL355.h	Tue Aug 14 06:49:07 2018 +0000
+++ b/ADXL35x/ADXL355.h	Tue Aug 14 11:33:30 2018 +0000
@@ -5,11 +5,32 @@
 class ADXL355
 {
 public: 
+    // -------------------------- //
+    // CONST AND VARIABLES        // 
+    // -------------------------- //
+    typedef struct {
+        // sensitivity
+        float Sxx;  
+        float Sxy;
+        float Sxz;
+        float Syx;
+        float Syy;
+        float Syz;
+        float Szx;
+        float Szy;
+        float Szz;
+        float St;
+        // 0g offset
+        float Bx;
+        float By;
+        float Bz;
+        float Bt;
+    } ADXL355_calib_t;   
     const static float t_sens = -9.05;    
     const static float t_bias = 1852;    
     float axis355_sens;
     float axis357_sens;
-             
+    ADXL355_calib_t calib_data;      
     // -------------------------- //
     // REGISTERS                  // 
     // -------------------------- //
@@ -115,7 +136,6 @@
         ST2 = 0x02,
         ST1 = 0x01
     } ADXL355_int_ctl_t;
-    
     // -------------------------- //
     // FUNCTIONS                  //  
     // -------------------------- //
@@ -161,8 +181,12 @@
     void fifo_setup(uint8_t nr_of_entries);
     uint32_t fifo_read_u32();
     uint64_t fifo_scan();
-    // ADXL tilt methods and calibration
-    // TBD
+    // ADXL calibration
+    float convert(uint32_t data);
+    ADXL355_calib_t convert_2p();
+    ADXL355_calib_t convert_3to8p();
+    ADXL355_calib_t convert_12p();
+    
 private:
     // SPI adxl355;                 ///< SPI instance of the ADXL
     SPI adxl355; DigitalOut cs;