Diff: main.cpp

Revision:

2:8e2c44115ce0

Parent:

1:bee807884a79

Child:

3:9e69b148d807

--- a/main.cpp	Tue Nov 16 15:24:46 2021 +0000
+++ b/main.cpp	Wed Nov 17 00:14:02 2021 +0000
@@ -1,10 +1,10 @@
-//Example Code for Accelerometer
-//Can be used as a starting point for Assignment #5
-//Stephen Licht
+//Assignment 5 Accelerometer and Servo with Data Logging
+//Starter code from Stephen Licht
 //Created 11/9/2021
 
 #include "mbed.h"
 #include "MMA8452Q.h"
+#include "SDFileSystem.h"
 
 //Define constants for timing of read and write:
 #define READTIME 0.2
@@ -14,6 +14,7 @@
 DigitalOut Led2(LED2);
 DigitalOut Led3(LED3);
 MMA8452Q accel(p28,p27,0x1D);
+SDFileSystem sd(p5, p6, p7, p8, "sd");
 Serial pc(USBTX,USBRX);
 
 Ticker accel_reading;
@@ -28,8 +29,12 @@
     accZ_g = accel.readZ();
 }
 
+Timer t;
+
 int main()
 {
+    float count = 1; //define count as starting at 1
+    t.start();
     //Initialize accelerometer:
     accel.init();
 
@@ -39,6 +44,7 @@
     //Begin serial write timer for the first time:
     serial_reporting.start();
 
+
     while(1) {
         //Use a timer to manage writing to the serial port (approximate timing):
         if(serial_reporting.read()>WRITETIME) {
@@ -60,7 +66,25 @@
                 Led2=0;
                 Led3=1;
             }
+
         }
+        
+        mkdir("/sd/mydir", 0777);
+        char file_name[100];
+        sprintf(file_name,"/sd/mydir/%ddd.txt","count");
+        FILE *fp;
+
+        fp = fopen(file_name,"w");
+        if(fp == NULL) {
+            error("Could not open file for write /n");
+        }
+
+        pc.printf("$ACC, Time Since Start %f [MS],X Acceleration %f [G],Y Acceleration %f [G],Z Acceleration %f [G] \r\n", t.read(), accX_g, accY_g, accZ_g);
+        fprintf(fp, "Time Since Start= %f \r\n", t.read());
+        fprintf(fp, "X Acceleration= %f[G], Y Acceleration= %f[G], Z Acceleration= %f[G] \r\n", accX_g, accY_g, accZ_g);
+        fclose(fp);
+
+        count=count+1; 
     }
 
 }