Diff: main.cpp

Revision:

0:8c3382ecf351

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jan 16 08:20:39 2018 +0000
@@ -0,0 +1,107 @@
+
+//GPS GT-720F Logger01
+
+#include "mbed.h"
+#include "SDFileSystem.h"
+#define ON 1
+#define OFF 0
+
+DigitalOut mled0(LED1);
+DigitalOut mled1(LED2);
+DigitalIn sw1(p5);
+
+SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board
+FILE *fp;//ポインタ指定
+
+Serial gps(p9,p10); 
+
+Ticker flipper;
+
+float g_hokui,g_tokei;
+int fp_count=0;
+
+void gps_rec() {
+   
+   fp = fopen("/sd/nmea.csv", "w");
+        if(fp == NULL) {
+        error("Could not open file for write\n");
+        }
+    fprintf(fp,"%4.6f,%3.6f,\n",g_tokei,g_hokui);
+     fclose(fp);                        
+}
+
+int main() {
+    
+
+      char c;
+      int i,rlock=0,stn=0;
+      char gps_data[256];
+      char ns,ew;
+      float time,hokui,tokei;
+ 
+      float d_hokui,m_hokui,d_tokei,m_tokei;
+      int h_time=0,m_time=0,s_time=0;
+      int rec_flag=0;
+      
+      gps.baud(9600);//GT-720Fボーレート
+      
+ 
+      
+    while (1) {
+            
+      i=0;
+      while(gps.getc()!='$'){
+      }
+      
+      while( (gps_data[i]=gps.getc()) != '\r'){
+        i++;
+        if(i==256){//上限文字数250文字
+           i=255;
+           break;
+         }
+      }
+      gps_data[i]='\0';
+      
+      //test
+      /* Test data
+       rlock=1;
+       stn=3;
+       hokui=3532.25024; //=>35.537502
+       tokei=13751.86820;//=>137.864471
+       time=114107.046;
+      */  
+      
+      //正常に作動
+      //GPGGAセンテンスを見つける
+      if( sscanf(gps_data, "GPGGA,%f,%f,%c,%f,%c,%d,%d",&time,&hokui,&ns,&tokei,&ew,&rlock,&stn) >= 1){
+        if(rlock >= 1){//衛星ロック、緯度経度計測開始
+
+        //hokui　北緯の処理
+        
+          d_hokui=int(hokui/100);
+          m_hokui=(hokui-d_hokui*100)/60;
+          g_hokui=d_hokui+m_hokui;
+         //tokei 東経の処理
+         
+          d_tokei=int(tokei/100);
+          m_tokei=(tokei-d_tokei*100)/60;
+          g_tokei=d_tokei+m_tokei;
+         //g_hokui=int(hokui/100)+(hokui-int(hokui/100))/60;
+         //g_tokei=int(tokei/100)+(tokei-int(tokei/100))/60;
+          
+         //time set
+          h_time=int(time/10000);
+          m_time=int((time-h_time*10000)/100);
+          s_time=int(time-h_time*10000-m_time*100);
+          h_time=h_time+9;//UTC =>JST
+          
+     
+           flipper.attach(&gps_rec, 1.0);//ロギング割り込み開始
+           
+        }//if(rclock>1)
+
+        }//if sscanf
+    }//while
+}//main
+
+