Lab3-03_save_battery_voltage_lite

Dependencies:   mbed HEPTA_CDH_lite HEPTA_EPS_lite

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main.cpp

00001 #include "mbed.h"
00002 #include "HEPTA_EPS.h"
00003 #include "HEPTA_CDH.h"
00004 HEPTA_CDH cdh(PB_5, PB_4, PB_3, PA_8, "sd");
00005 HEPTA_EPS eps(PA_0,PA_4);
00006 Serial pc(USBTX,USBRX,9600);
00007 int main()
00008 {
00009     float btvol;
00010     char str[100];
00011     mkdir("/sd/mydir", 0777);
00012     FILE *fp = fopen("/sd/mydir/data.txt", "w");
00013     if(fp == NULL) {
00014         error("Could not open file for write\r\n");
00015     }
00016     for(int i=0;i<10;i++) {
00017         eps.vol(&btvol);
00018         fprintf(fp,"Voltage = %f\r\n",btvol);
00019         wait_ms(1000);
00020     }
00021     fclose(fp);
00022     fp = fopen("/sd/mydir/data.txt","r");
00023     for(int i=0;i<10;i++) {
00024         fgets(str,100,fp);
00025         pc.puts(str);
00026     }
00027     fclose(fp);
00028     pc.printf("Goodbye!\r\n");
00029 }