Diff: main.cpp

Revision:

2:bae4b43dc1ef

Parent:

1:84b9a3e560fe

Child:

3:1238aecec770

--- a/main.cpp	Thu Mar 01 16:04:03 2018 +0000
+++ b/main.cpp	Fri Mar 02 17:36:53 2018 +0000
@@ -9,21 +9,21 @@
 // Selects SCL on I2C1_SCL on pin PB_6
 // The I2C address of the pressure sensor is fixed at 0x60. 
 MPL3115A2 pressure_sensor(PB_7,PB_6,0x60);
-
-
-
-
 int mpl3115_reg_print(int start, int length);
 
-
 int main() {
     pc.printf("starting program\n\r");
-    int i;
-    int arraySize = 100;
-    double altitudeReading[arraySize];    
-    while (1) { 
-        while(event.read()) {
-            pc.printf("starting to read\r\n");
+    int i = 0;
+    int arraySize = 1000;
+    double altitudeReading[arraySize];
+    
+    for (i = 0; i < arraySize; i++) { 
+        altitudeReading[i] = -1;
+    }
+    i = 0;
+    while (1) {
+        if(event.read()) {
+            pc.printf("reading an altitude at this point\r\n");
             altitudeReading[i] = pressure_sensor.getAltitude();
             i++;
             if (i > arraySize) {
@@ -37,10 +37,11 @@
                 pc.printf("read a p\r\n");
                 int j = 0;
                 for (j = 0; j < arraySize; j++) { 
-                    pc.printf("j = %d, altitude = %f\r\n", i, altitudeReading[j]);                
+                    pc.printf("j = %d, altitude = %f\r\n", j, altitudeReading[j]);                
                 }
             }
         }
+        wait_ms(500);
     }
 }
     
@@ -95,8 +96,7 @@
         pc.printf("Error: Unable to read from WHO_AM_I register\n\r");
         return -1;
     }
-    
-    
+    // array of names of the registries
     char regNames [0x2E][30] = {
         "STATUS", "OUT_P_MSB", "OUT_P_CSB",
         "OUT_P_LSB", "OUT_T_MSB", "OUT_T_LSB",
@@ -114,6 +114,7 @@
         "CTRL_REG2","CTRL_REG3","CTRL_REG4",
         "CTRL_REG5", "OFF_P", "OFF_T", "OFF_H" 
         };
+    // For loop to print out each registry value
     for (int i = start; i < end; i++) { 
         pressure_sensor.readRegs(i,&data,8);
         pc.printf("%#04x: %s=%#04x\n\r", i, regNames[i], data); // Print register