Bresdin O'Malley / MMA8451Q8

HW 4.2.1 submission

Fork of MMA8451Q8b by Stanley Cohen

Files at this revision

API Documentation at this revision

Revision 9:84011f06d1ea, committed 2015-02-09

Comitter:
bomalley
Date:
Mon Feb 09 06:57:21 2015 +0000
Parent:
8:993bb9e96a4b
Commit message:
HW 4.2.1 submission

Changed in this revision

MMA8451Q8.cpp Show annotated file Show diff for this revision Revisions of this file
MMA8451Q8.h Show annotated file Show diff for this revision Revisions of this file 
diff -r 993bb9e96a4b -r 84011f06d1ea MMA8451Q8.cpp
--- a/MMA8451Q8.cpp	Tue Feb 03 17:59:00 2015 +0000
+++ b/MMA8451Q8.cpp	Mon Feb 09 06:57:21 2015 +0000
@@ -82,6 +82,19 @@
     data[DATA_INDEX] = 0x01;
     writeRegs(data, 2); // make active
 }
+void MMA8451Q::setRegisterInStandby(uint8_t regAddress, uint8_t regData) {
+    uint8_t configBits;   
+    uint8_t data[NUM_DATA] = {REG_CTRL_REG_1, 0x00}; // put in standby mode
+// set up configuration bits.
+    configBits = regData;
+    writeRegs(data, NUM_DATA); // put in standby
+    data[ADDRESS_INDEX ] = regAddress;
+    data[DATA_INDEX] = configBits;
+    writeRegs(data, NUM_DATA);
+    data[ADDRESS_INDEX ] = REG_CTRL_REG_1; // put back in active mode
+    data[DATA_INDEX] = 0x01;
+    writeRegs(data, 2); // make active    
+}
 float MMA8451Q::getAccX() {
     return (float(getAccAxis(REG_OUT_X_MSB))/gScaling[gChosen]);
 }

diff -r 993bb9e96a4b -r 84011f06d1ea MMA8451Q8.h
--- a/MMA8451Q8.h	Tue Feb 03 17:59:00 2015 +0000
+++ b/MMA8451Q8.h	Mon Feb 09 06:57:21 2015 +0000
@@ -111,7 +111,8 @@
   **/ 
   void setGLimit(int gSelect); 
   // added in .cpp file for tap configuration
-  void setPulseConfiguration(uint8_t latch,uint8_t axisSet);
+  void setPulseConfiguration(uint8_t latch, uint8_t axisSet);
+  void setRegisterInStandby(uint8_t regAddress,uint8_t regData);
   void readRegs(int addr, uint8_t * data, int len);
   void writeRegs(uint8_t * data, int len);