Jake Billingham / Mbed 2 deprecated mbed_settingsproto

sdvsv

Dependencies:   mbed

main.cpp@0:e040d34c2969, 2017-10-22 (annotated)

Committer:
jbillingham
Date:
Sun Oct 22 18:16:23 2017 +0000
Revision:
0:e040d34c2969
dsfcsdv

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jbillingham 0:e040d34c2969 1 //Import libraries
jbillingham 0:e040d34c2969 2 #include "mbed.h"
jbillingham 0:e040d34c2969 3 #include "stdio.h"
jbillingham 0:e040d34c2969 4 #include "math.h"
jbillingham 0:e040d34c2969 5
jbillingham 0:e040d34c2969 6 //Establish serial connection
jbillingham 0:e040d34c2969 7 Serial pc(USBTX, USBRX);
jbillingham 0:e040d34c2969 8 //Create the local filesystem
jbillingham 0:e040d34c2969 9 LocalFileSystem local("local");
jbillingham 0:e040d34c2969 10
jbillingham 0:e040d34c2969 11 //Define variables
jbillingham 0:e040d34c2969 12 int N = 50; //Number of samples
jbillingham 0:e040d34c2969 13 float T = 0.1; //Sample period
jbillingham 0:e040d34c2969 14
jbillingham 0:e040d34c2969 15 int main()
jbillingham 0:e040d34c2969 16 {
jbillingham 0:e040d34c2969 17 FILE *settings; //Create file with pointer
jbillingham 0:e040d34c2969 18
jbillingham 0:e040d34c2969 19 settings = fopen("/local/settings.txt", "w");//Open file for writing
jbillingham 0:e040d34c2969 20 pc.printf("File open.\n"); //Indicates file open
jbillingham 0:e040d34c2969 21 fprintf(settings, "%i %f", N, T); //Writes settings values onto file
jbillingham 0:e040d34c2969 22 fclose(settings); //Close file
jbillingham 0:e040d34c2969 23 pc.printf("Settings saved.\n");
jbillingham 0:e040d34c2969 24
jbillingham 0:e040d34c2969 25 //Define variables for output
jbillingham 0:e040d34c2969 26 int value1;
jbillingham 0:e040d34c2969 27 float value2;
jbillingham 0:e040d34c2969 28
jbillingham 0:e040d34c2969 29 settings = fopen("/local/settings.txt" , "r"); //Open file for reading
jbillingham 0:e040d34c2969 30 fseek(settings, 0 ,SEEK_SET); //Sets cursor to start of file
jbillingham 0:e040d34c2969 31 fscanf(settings, "%i", &value1); //Scans for first number
jbillingham 0:e040d34c2969 32 pc.printf("Settings are:\n");
jbillingham 0:e040d34c2969 33 pc.printf("%i\n", value1); //Outputs first number
jbillingham 0:e040d34c2969 34 fseek(settings, sizeof(int), SEEK_SET); //Sets cursor to after first number
jbillingham 0:e040d34c2969 35 fscanf(settings, "%f", &value2); //Scans for second number
jbillingham 0:e040d34c2969 36 pc.printf("%f\n", value2); //Outputs second number
jbillingham 0:e040d34c2969 37 fclose(settings); //Close file
jbillingham 0:e040d34c2969 38 }