Revision 5:aefb5974f42a, committed 2018-01-18

Comitter:

vinajarr

Date:

Thu Jan 18 07:52:57 2018 +0000

Parent:

4:c4d879a39775

Commit message:

implement interrupt

Changed in this revision

--- a/MMA8451Q.cpp	Fri Oct 12 11:35:07 2012 +0000
+++ b/MMA8451Q.cpp	Thu Jan 18 07:52:57 2018 +0000
@@ -26,10 +26,27 @@
 
 #define UINT14_MAX        16383
 
-MMA8451Q::MMA8451Q(PinName sda, PinName scl, int addr) : m_i2c(sda, scl), m_addr(addr) {
+
+
+MMA8451Q::MMA8451Q(I2C * puntero , int addr) : m_i2c(puntero), m_addr(addr) {
     // activate the peripheral
-    uint8_t data[2] = {REG_CTRL_REG_1, 0x01};
+    uint8_t data[2] = {REG_CTRL_REG_1, 0x00}; //Permitir escribir en los registros de control
     writeRegs(data, 2);
+    data[0]=REG_CTRL_REG_1;
+    data[1]=0x0C;
+    writeRegs(data, 2);// definir velocidad de 400Hz Low Noise 
+    data[0]=0x2b;
+    data[1]=0x09;
+    writeRegs(data, 2);//Moodo de alta resolucion
+    data[0]=0x2D;
+    data[1]=0x01;
+    writeRegs(data, 2);//Activar interrupcion por data-ready
+    data[0]=0x2E;
+    data[1]=0x01;
+    writeRegs(data, 2);//Rutear interrupcion al pin INT1
+    data[0]=REG_CTRL_REG_1;
+    data[1]=0x0D;
+    writeRegs(data, 2);//Activar el modulo
 }
 
 MMA8451Q::~MMA8451Q() { }
@@ -37,10 +54,12 @@
 uint8_t MMA8451Q::getWhoAmI() {
     uint8_t who_am_i = 0;
     readRegs(REG_WHO_AM_I, &who_am_i, 1);
+    
     return who_am_i;
 }
 
 float MMA8451Q::getAccX() {
+    
     return (float(getAccAxis(REG_OUT_X_MSB))/4096.0);
 }
 
@@ -72,10 +91,10 @@
 
 void MMA8451Q::readRegs(int addr, uint8_t * data, int len) {
     char t[1] = {addr};
-    m_i2c.write(m_addr, t, 1, true);
-    m_i2c.read(m_addr, (char *)data, len);
+    m_i2c->write(m_addr, t, 1, true);
+    m_i2c->read(m_addr, (char *)data, len);
 }
 
 void MMA8451Q::writeRegs(uint8_t * data, int len) {
-    m_i2c.write(m_addr, (char *)data, len);
+    m_i2c->write(m_addr, (char *)data, len);
 }

--- a/MMA8451Q.h	Fri Oct 12 11:35:07 2012 +0000
+++ b/MMA8451Q.h	Thu Jan 18 07:52:57 2018 +0000
@@ -56,7 +56,7 @@
   * @param sdl SCL pin
   * @param addr addr of the I2C peripheral
   */
-  MMA8451Q(PinName sda, PinName scl, int addr);
+  MMA8451Q(I2C * puntero, int addr);
 
   /**
   * MMA8451Q destructor
@@ -97,11 +97,13 @@
    * @param res array where acceleration data will be stored
    */
   void getAccAllAxis(float * res);
-
+    
+    
+  void readRegs(int addr, uint8_t * data, int len);  
 private:
-  I2C m_i2c;
+  I2C *m_i2c;
   int m_addr;
-  void readRegs(int addr, uint8_t * data, int len);
+  
   void writeRegs(uint8_t * data, int len);
   int16_t getAccAxis(uint8_t addr);