Diff: main.cpp

Revision:

18:f6ecd5ea145f

Parent:

15:792eb5103e9e

--- a/main.cpp	Sun Jul 09 09:30:54 2017 +0000
+++ b/main.cpp	Sat Aug 05 12:36:29 2017 +0000
@@ -27,6 +27,7 @@
 #define time_between_para_opening_ms 4000//パラシュート展開用の電熱線の加熱時間(msec) 
 #define conv2Gravity 1./(32768./Acc_range)//加速度センサの値の単位をGに変換
 #define AT24C1024_address 0x50
+#define eeprom_byte_size 100000
 
 DigitalOut myled1(LED1);
 DigitalOut myled2(LED2);
@@ -105,7 +106,7 @@
         } while (seed > 1000);//0~999のunsigned_int型に変換
         srand(seed);
         result_num = rand();
-        sprintf(filename, "result_%d.dat", result_num);
+        sprintf(filename, "result_%d.csv", result_num);
         mkdir("/sd/mydir", 0777);
     }
 
@@ -129,9 +130,9 @@
 
         /*SDカードに書き込み*/
 
-        FILE *fp = fopen("/sd/mydir/filename", "w");
+        FILE *fp = fopen("/sd/mydir/data.csv", "a");
         if (fp == NULL)error("Could not open SD Card for write\n");
-        fprintf(fp, "%f %f %f %f %f %f %f %f %f %f %f %f %f %f\n", time, temp, pres, acc[0], acc[1], acc[2], gyro[0], gyro[1], gyro[2], latitude, longitude);
+        fprintf(fp, "%f,%f,%f,%f,%f,%f,%f,%f,%f,%f,%f,%f,%f,%f\n", val, temp, pres, acc[0], acc[1], acc[2], gyro[0], gyro[1], gyro[2], mag[0], mag[1], mag[2], latitude, longitude);
         fclose(fp);
 
     }
@@ -158,7 +159,13 @@
     }
 
     void delete_eeprom() { //eepromの中身を全消去
-
+        char *del;
+        char emp='0';//eepromの初期化は"0"
+        eeprom.nbyte_read(0,del,1);
+        for(int32_t n=0;del[0]!='\0'&&n<eeprom_byte_size;n++){//終端文字か指定バイトの数まで初期化
+            eeprom.byte_write(n,emp);
+            eeprom.nbyte_read(n+1,del,1);
+            }
 
     }