Diff: main.cpp

Revision:

0:e040d34c2969

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Oct 22 18:16:23 2017 +0000
@@ -0,0 +1,38 @@
+//Import libraries
+#include "mbed.h"
+#include "stdio.h"
+#include "math.h"
+
+//Establish serial connection
+Serial pc(USBTX, USBRX);
+//Create the local filesystem
+LocalFileSystem local("local"); 
+
+//Define variables
+int N = 50; //Number of samples
+float T = 0.1; //Sample period
+
+int main() 
+{
+    FILE *settings; //Create file with pointer
+
+    settings = fopen("/local/settings.txt", "w");//Open file for writing
+    pc.printf("File open.\n"); //Indicates file open
+    fprintf(settings, "%i %f", N, T); //Writes settings values onto file
+    fclose(settings); //Close file
+    pc.printf("Settings saved.\n");
+    
+    //Define variables for output
+    int value1;
+    float value2;
+    
+    settings = fopen("/local/settings.txt" , "r"); //Open file for reading
+    fseek(settings, 0 ,SEEK_SET); //Sets cursor to start of file
+    fscanf(settings, "%i", &value1);  //Scans for first number
+    pc.printf("Settings are:\n");
+    pc.printf("%i\n", value1); //Outputs first number
+    fseek(settings, sizeof(int), SEEK_SET); //Sets cursor to after first number
+    fscanf(settings, "%f", &value2); //Scans for second number
+    pc.printf("%f\n", value2); //Outputs second number
+    fclose(settings); //Close file
+}
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