Diff: ADXL35x/ADXL355.cpp

Revision:

6:45d2393ef468

Parent:

4:23b53636b576

Child:

7:5aaa09c40283

diff -r 05af38b6375a -r 45d2393ef468 ADXL35x/ADXL355.cpp
--- a/ADXL35x/ADXL355.cpp	Wed Aug 08 12:13:05 2018 +0000
+++ b/ADXL35x/ADXL355.cpp	Tue Aug 14 06:49:07 2018 +0000
@@ -3,7 +3,6 @@
 #include "ADXL355.h"
 
 
-//DigitalOut(cs);                  ///< DigitalOut instance for the chipselect of the ADXL
 //DigitalOut int1;                ///< DigitalOut instance for the chipselect of the ADXL
 //DigitalOut int2;                ///< DigitalOut instance for the chipselect of the ADXL
 
@@ -12,6 +11,8 @@
     cs = 1;
     adxl355.format(8,_SPI_MODE);
     adxl355.lock();
+    axis355_sens = 3.9e-6;
+    axis357_sens = 19.5e-6;
 }
 
 /** SPI bus frequency   */
@@ -28,6 +29,8 @@
     // Writing Code 0x52 (representing the letter, R, in ASCII or unicode) to this register immediately resets the ADXL362.
     write_reg(RESET, _RESET);
     cs = true;
+    axis355_sens = 3.9e-6;
+    axis357_sens = 19.5e-6;
 }
 /** ----------------------------------- */
 /** Writes the reg register with data   */
@@ -72,12 +75,12 @@
     cs = true;
     return ret_val;
 }
-uint32_t ADXL355::read_reg_u32(ADXL355_register_t reg){
+uint32_t ADXL355::read_reg_u20(ADXL355_register_t reg){
     uint32_t ret_val = 0;
     adxl355.format(8, _SPI_MODE);
     cs = false;
     adxl355.write((reg<<1) | _READ_REG_CMD);
-    ret_val = adxl355.write(_DUMMY_BYTE);
+    ret_val = 0x0f & adxl355.write(_DUMMY_BYTE);
     ret_val = (ret_val<<8) | adxl355.write(_DUMMY_BYTE);
     ret_val = (ret_val<<8) | adxl355.write(_DUMMY_BYTE);
     cs = true;
@@ -97,6 +100,20 @@
 }
 void ADXL355::set_device(ADXL355_range_ctl_t range) {
     write_reg(RANGE, static_cast<uint8_t>(range));
+    switch(range){
+        case 0x01:
+            axis355_sens = 3.9e-6;
+            axis357_sens = 19.5e-6;
+            break;
+        case 0x02:
+            axis355_sens = 7.8e-6;
+            axis357_sens = 39e-6;
+            break;
+        case 0x03:
+            axis355_sens = 15.6e-6;
+            axis357_sens = 78e-6;
+            break;
+        }
 }
 /** ----------------------------------- */
 /** Read the STATUS registers           */
@@ -109,26 +126,37 @@
 /** mode to read the data registers     */
 /** ----------------------------------- */
 uint32_t ADXL355::scanx(){
-    return read_reg_u32(XDATA3);
+    return read_reg_u20(XDATA3);
 }
 uint32_t ADXL355::scany(){
-    return read_reg_u32(YDATA3);
+    return read_reg_u20(YDATA3);
 }
 uint32_t ADXL355::scanz(){
-    return read_reg_u32(ZDATA3);
+    return read_reg_u20(ZDATA3);
 }
 uint16_t ADXL355::scant(){
     return read_reg_u16(TEMP2);
 }
 /** ----------------------------------- */
+/** Activity SetUp - the measured       */
+/** acceleration on any axis is above   */ 
+/** the ACT_THRESH bits for ACT_COUNT   */
+/** consecutive measurements.           */
 /** ----------------------------------- */
-void ADXL355::set_activity_axis(ADXL355_act_ctl_t axis) {}
-void ADXL355::set_activity_cnt(uint8_t count) {}
+
+void ADXL355::set_activity_axis(ADXL355_act_ctl_t axis) {
+    write_reg(ACT_EN, axis);
+}
+void ADXL355::set_activity_cnt(uint8_t count) {
+    write_reg(ACT_COUNT, count);
+}
 void ADXL355::set_activity_threshold(uint8_t data_h, uint8_t data_l) {
     uint16_t ret_val = static_cast<uint16_t>((data_h<<8)|data_l);
     write_reg_u16(ACT_THRESH_H, ret_val);
 }
-void ADXL355::set_inactivity() {}
+void ADXL355::set_inactivity() {
+    write_reg(ACT_EN, 0x00);
+}
 /** ----------------------------------- */
 /** ----------------------------------- */
 void ADXL355::set_interrupt1_pin(PinName in, ADXL355_intmap_ctl_t mode) {}