main.cpp

00001 /* Program Example 10.1: read and write char data bytes
00002                                                              */
00003 #include "mbed.h"
00004 Serial pc(USBTX,USBRX);               // setup terminal link
00005 LocalFileSystem local("local");      // define local file system
00006 int write_var;
00007 int read_var;                           // create data variables
00008 
00009 int main ()
00010 {
00011   FILE* File1 = fopen("/local/datafile.txt","w");       // open file
00012   write_var=0x23;                                       // example data
00013   fputc(write_var, File1);               // put char (data value) into file
00014   fclose(File1);                       // close file  
00015 
00016   FILE* File2 = fopen ("/local/datafile.txt","r");  // open file for reading
00017   read_var = fgetc(File2);                            // read first data value
00018   fclose(File2);                                      // close file
00019   pc.printf("input value = %i \n",read_var);     // display read data value 
00020 }
00021