Revision 3:3da5bf0df3ab, committed 2017-06-20

Comitter:

ODEM

Date:

Tue Jun 20 07:46:04 2017 +0000

Parent:

2:29e536aabd5b

Commit message:

I2C MPL3115A2

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MPL3115A2.lib	Tue Jun 20 07:46:04 2017 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/teams/mmotor/code/MPL3115A2/#c0ee6755d57f

--- a/main.cpp	Wed Jun 14 13:49:06 2017 +0000
+++ b/main.cpp	Tue Jun 20 07:46:04 2017 +0000
@@ -1,91 +1,54 @@
-// Read from I2C slave at address 0x62
-
 #include "mbed.h"
-
-I2C i2c(p9, p10);
-int SlaveAddress = 0xc0;
-//set to Altimeter
-int SetA1 = 0x26;
-int SetA2 = 0xB8;
-//enable data flag
-int flag1 = 0x13;
-int flag2 = 0x07;
-//Set Active
-int active1 = 0x26;
-int active2 = 0xB9;
-//read status register
-int status1 = 0x00;
-
-
-//
-int OUT_P_MSB=0;
-char data_OUT_P_MSB[1];
-char STA;
-
-
-
-/******************************main**********************************/
-int main()
-{
-    char data_OUT_P_MSB[1];
-    data_OUT_P_MSB[0] = 0x01;
-
-    //cmd    = 0x60;
-
-    char data[2];
-    data[0]=SetA1;
-    data[1]=SetA2;
-
-    char flags[2];
-    flags[0]=flag1;
-    flags[1]=flag2;
-
-    char active[2];
-    active[0]=active1;
-    active[1]=active2;
+#include "MPL3115A2.h"
+ 
+I2C i2c(p9, p10);       // sda, scl
+Serial pc(USBTX, USBRX); // tx, rx
+MPL3115A2 sensor(&i2c, &pc);
+ 
+DigitalOut myled(LED1);     
+DigitalOut powerPin(p21);   
 
-    char status [1];
-    status[0]=status1;
-    char cmd[2];
-    const int addr = 0xc1;
-
-    // wait(0.1);
-    //WRITE
-    //set to Altimeter
-    i2c.write(SlaveAddress, data, 2);
-    //enable data flag
-    i2c.write(SlaveAddress, flags, 2);
-    //Set Active
-    i2c.write(SlaveAddress, active, 2);
-
-    while(1) {
-
-        /*//READ
-        //read status register
-        STA=i2c.read(SlaveAddress, status, 2,false);
-
-
-        if (STA&&0x08==1) {
-            OUT_P_MSB=i2c.read(SlaveAddress, data_OUT_P_MSB, 1);
-        }
-
-
-        printf("data= %04X\n", OUT_P_MSB);
-        printf("data= %d\n", STA);*/
+int main() {
+    
+    powerPin = 1;
+    wait_ms(300);
+ 
+    pc.printf("** MPL3115A2 SENSOR **\r\n");
+ 
+    sensor.init();
+ 
+    pc.printf("Who Am I: 0x%X\r\n", sensor.whoAmI());
+ 
+    Altitude a;
+    Temperature t;
+    Pressure p;
+    
+    // Offsets for Dacula, GA
+    sensor.setOffsetAltitude(83);
+    sensor.setOffsetTemperature(20);
+    sensor.setOffsetPressure(-32);
+    
+    while(1) 
+    {
+        sensor.readAltitude(&a);
+        sensor.readTemperature(&t);
         
-        cmd[0] = 0x01;
-        cmd[1] = 0x00;
-        i2c.write(addr, cmd, 2);
+        sensor.setModeStandby();
+        sensor.setModeBarometer();
+        sensor.setModeActive();
+        sensor.readPressure(&p);
+        
+        pc.printf("Altitude: %sm, Temp: %s°C, Pressure: %sPa\r\n", a.print(), t.print(), p.print());
+        pc.printf("OFF_H: 0x%X, OFF_T: 0x%X, OFF_P: 0x%X\r\n", sensor.offsetAltitude(), sensor.offsetTemperature(), sensor.offsetPressure());
+    
+        myled = 1;
+        wait(5);
+        myled = 0;
+        wait(5);
  
-        wait(0.5);
-        cmd[0] = 0x00;
-        i2c.write(addr, cmd, 1);
-        i2c.read(addr, cmd, 2);
-        printf("Temp = %d\n", cmd);
-        float tmp = (float((cmd[0]<<8)|cmd[1]) / 256.0);
-        printf("Temp = %.2f\n", tmp);
+        sensor.setModeStandby();
+        sensor.setModeAltimeter();
+        sensor.setModeActive();
+        
     }
-}
-
-
-
+}
\ No newline at end of file