Revision 1:3d3fb5f81373, committed 2017-05-30

Comitter:

aaaaaYukiaaaaa

Date:

Tue May 30 04:55:17 2017 +0000

Parent:

0:bdbd3d6fc5d5

Child:

2:ee19d6b4dc98

Commit message:

This program is writing data only.

Changed in this revision

--- a/main.cpp	Fri Dec 07 11:25:01 2012 +0000
+++ b/main.cpp	Tue May 30 04:55:17 2017 +0000
@@ -2,18 +2,83 @@
 #include "SDFileSystem.h"
  
 SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board
+DigitalIn enable(p30);
+AnalogIn inpt(p20);
+DigitalOut myled(LED1);
  
-int main() {
+
+void SD(int num, double btry){
+    myled = 1;
+    
     printf("Hello World!\n");   
  
     mkdir("/sd/mydir", 0777);
     
-    FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
-    if(fp == NULL) {
+    FILE *fp_csv = fopen("/sd/mydir/sdtest.csv", "a");
+    if(fp_csv == NULL) {
+        error("Could not open file for write\n");
+    }
+    
+    fprintf(fp_csv, "%f,%f\n", btry, (float)num);
+    
+    fclose(fp_csv); 
+    
+    /////////////////
+    
+//    FILE *fp_txt = fopen("/sd/mydir/sdtest.txt", "a");
+//    if(fp_txt == NULL) {
+//        error("Could not open file for write\n");
+//    }
+//    fprintf(fp_txt, "Hello fun SD Card World!\n");
+//    fprintf(fp_txt, "Hello fun SD Card World!\n");
+//    fprintf(fp_txt, "%f,%f\n", btry, (float)num);
+//    
+//    fclose(fp_txt); 
+    
+    
+    printf("Goodbye World!\n");
+    myled = 0;
+}
+ 
+int main() {
+    float btry_lg = 0;
+    int nmbr_lg = 0;
+    
+    FILE *fp_csv = fopen("/sd/mydir/sdtest.csv", "w");
+    if(fp_csv == NULL) {
         error("Could not open file for write\n");
     }
-    fprintf(fp, "Hello fun SD Card World!");
-    fclose(fp); 
- 
-    printf("Goodbye World!\n");
+    fprintf(fp_csv, "baterry,number\n");
+    fclose(fp_csv); 
+    
+    
+//    FILE *fp_txt = fopen("/sd/mydir/sdtest.txt", "a");
+//    if(fp_txt == NULL) {
+//        error("Could not open file for write\n");
+//    }
+//    fclose(fp_txt); 
+    
+    
+    while(1){
+        // test the voltage on the initialized analog pin
+        //  and if greater than 0.3 * VCC set the digital pin
+        //  to a logic 1 otherwise a logic 0
+        btry_lg = inpt.read()*3.3;
+        
+        //if(ain > 0.3f) {
+            
+        //} else {
+            
+        //}
+        
+        // print the percentage and 16 bit normalized values
+        //printf("percentage: %3.3f%%\n", ain.read()*100.0f);
+        //printf("normalized: 0x%04X \n", ain.read_u16());
+        //wait(0.2f);
+        
+        nmbr_lg++;
+        SD(nmbr_lg, btry_lg);
+        
+        wait(0.1);
+    }
 }