Kaitlyn Barros / MMA8452Q

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Dependents:   Barros_Assignment4

Files at this revision

API Documentation at this revision

Revision 2:1d10bcf263d2, committed 2017-12-07

Comitter:
Kaitlyn_Barros
Date:
Thu Dec 07 23:20:41 2017 +0000
Parent:
1:e70270d1025e
Commit message:
Assignment 6. Attempt to employ free fall register.

Changed in this revision

MMA8452Q.cpp Show annotated file Show diff for this revision Revisions of this file
MMA8452Q.h Show annotated file Show diff for this revision Revisions of this file 
diff -r e70270d1025e -r 1d10bcf263d2 MMA8452Q.cpp
--- a/MMA8452Q.cpp	Fri Nov 17 04:09:39 2017 +0000
+++ b/MMA8452Q.cpp	Thu Dec 07 23:20:41 2017 +0000
@@ -73,6 +73,20 @@
     writeRegister(REG_CTRL_REG1, c);    // Write back to CONTROL register
 }
 
+// Set accelerometer into standby mode
+void MMA8452Q::standby1()
+{
+    uint8_t k = readRegister(REG_FF_MT_CFG);
+    k &= ~(0x07);
+    writeRegister(REG_FF_MT_CFG, k);
+}
+void MMA8452Q::active1()
+{
+    uint8_t k = readRegister(REG_FF_MT_CFG);
+    k |= ~0x07;
+    writeRegister(REG_FF_MT_CFG, k);
+}
+
 // Read X registers
 float MMA8452Q::readX()
 {
@@ -172,4 +186,6 @@
     // Write the data to the register
     m_i2c.write(data);
     m_i2c.stop();
-}
\ No newline at end of file
+}
+
+ //IIC_RegWrite(0x15, 0xB8); //Enable Latch, Freefall, X-axis, Y-axis and Z-axis

diff -r e70270d1025e -r 1d10bcf263d2 MMA8452Q.h
--- a/MMA8452Q.h	Fri Nov 17 04:09:39 2017 +0000
+++ b/MMA8452Q.h	Thu Dec 07 23:20:41 2017 +0000
@@ -17,6 +17,7 @@
 #define REG_WHO_AM_I        0x0D
 #define REG_XYZ_DATA_CFG    0x0E
 #define REG_CTRL_REG1       0x2A
+#define REG_FF_MT_CFG       0x15
 
 // WHO_AM_I check
 #define FACTORY_ID          0x2A
@@ -53,6 +54,8 @@
         void setODR(uint8_t odr);
         void standby();
         void active();
+        void standby1();
+        void active1();
         float readX();
         float readY();
         float readZ();