File content as of revision 1:91f4ae33e6ac:

/*
説明
Nucleo-F303K8とGPSモジュールを使ったサンプルプログラム

参考
http://www.hiramine.com/physicalcomputing/general/gps_nmeaformat.html


以下ピン配置
Nucleo  GPSモジュール
GND-----GND-----------0V
５ｖ------VIN
D0------TX
D1------RX
*/
#include "mbed.h"

Serial gps(D1, D0);        // tx, rx
Serial pc(PA_2, PA_3);    // tx, rx

int main() {
      unsigned char c;
      int i,rlock;
      char gps_data[256],gps2_data[256];
      char ns,ew;
      float world_time,hokui,tokei;
      float g_hokui,g_tokei;
      float d_hokui,m_hokui,d_tokei,m_tokei;
      pc.baud(115200);
      gps.baud(9600);
      pc.printf("*** GPS GT-720F ***");

    while (1) {
      i=0;
      while(gps.getc()!='$'){
      }

      while((gps_data[i]=gps.getc()) != '\r'){
        i++;
        if(i==256){
           pc.printf("*** Div Error! ***\n");
           i=255;
           break;
         }
      }
      gps_data[i]='\0';
//      pc.printf("%s",gps_data);
      if( sscanf(gps_data, "$GPGGA,%f,%f,%c,%f,%c,%d",&world_time,&hokui,&ns,&tokei,&ew,&rlock) >= 1){
        if(rlock==1){
          pc.printf("Status:Lock(%d)\n\r",rlock);
         //logitude
          d_tokei= int(tokei/100);
          m_tokei= (tokei-d_tokei*100)/60;
          g_tokei= d_tokei+m_tokei;
          pc.printf("Log:%4.5f,",g_tokei);
         //Latitude
          d_hokui=int(hokui/100);
          m_hokui=(hokui-d_hokui*100)/60;
          g_hokui=d_hokui+m_hokui;
          pc.printf("Lat:%4.5f\n\r",g_hokui);

        }
        else{
          pc.printf("\n\rStatus:unLock(%d)\n\r",rlock);
          for(i=0;i<40;i++){
            pc.printf("%c",gps_data[i]);
          }
        }
      }//if
    }//while
}//main