Diff: main.cpp

Revision:

0:8d245bbd9c2b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Feb 26 18:20:58 2010 +0000
@@ -0,0 +1,160 @@
+#include "mbed.h"
+#include "TextLCD.h"
+
+//#include "MAX6662.h"
+// Create the local filesystem under the name "local"
+
+LocalFileSystem local("local");
+TextLCD lcd(p24, p25, p26, p27, p28, p29, p30); // rs, rw, e, d0, d1, d2, d3
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalIn button(p12);
+
+AnalogIn grx(p16);  // gyroscope x-axis
+AnalogIn gry(p17);  // gyroscope y-axis
+AnalogIn acx(p18);  // accelerometer x-axis
+AnalogIn acy(p19);  // accelerometer y-axis
+AnalogIn acz(p20);  // accelerometer z-axis
+
+
+
+char direct[]= "local";
+char file[20];
+char next_file[20];
+int file_no;
+int count;
+bool not_found;
+bool check;
+
+//*********************************************
+//sub for filename search
+bool exists(char * root, char *filename) {
+
+    DIR *d;
+    struct dirent *p;
+    d = opendir("/local");
+
+    //printf("\nList of files in the directory %s:\n", root);
+    bool found = false;
+    if ( d != NULL ) {
+        while ( !found && (p = readdir(d)) != NULL ) {
+            //printf(" - %s\n", p->d_name);
+            if ( strcmp(p->d_name, filename) == 0 )
+                found = true;
+        }
+    }
+    closedir(d);
+    not_found=!found;
+    return found;
+}
+
+//*********************************************
+
+// this routine could check the last number of file it is
+// last file _no = file_no - 1;
+
+//not_found=false; // intial
+
+
+//*********************************************
+//sub to search for filename
+int search( void ) {
+
+    not_found=false;
+    led1=button;
+    file_no=1;
+    count=0;
+
+    while (not_found==false) {
+        sprintf(file, "TEMP%d.CSV", file_no);
+//        wait(.1);
+        if ( exists(direct, file) ) {
+          
+           // lcd.cls();
+            //lcd.locate(0,0);
+            //lcd.printf("Found %s",file);
+        } else {
+
+            lcd.cls();
+            //lcd.locate(0,0);
+            lcd.printf("Not %s", file);
+        }
+        file_no++;
+       // lcd.locate(0,1);
+        //lcd.printf("%d", file_no-1);
+    }
+    check=1;
+    led2=check;
+    return file_no;
+}
+
+//***************************************************
+
+//**************************************************
+//sub to delay input button
+//avoid bouncing effect
+
+int button_delay(bool b) {
+    bool c = false;
+    if (b==true) {
+        wait(.5);
+        c=true;
+    } else {
+        c=false;
+    }
+    return c;
+}
+
+//*******************************************************
+//main program start here
+
+bool sw;
+int no;
+
+int main() {
+
+    while (1) {
+
+
+        sw=button_delay(button);
+        led1=sw;
+
+        if (sw == false and no == 0) {
+            led3=1;
+            no=search();
+            lcd.locate(0,1);
+            lcd.printf("it is %d", no-1);
+            sprintf(next_file, "/local/temp%d.csv", file_no-1);
+        }
+
+
+        if (sw == true and no != 0) {
+            no=0;
+            led3=0;
+
+            FILE *fp = fopen(next_file, "w");
+            //while (button) {
+            while (button_delay(button)) {
+                led2 = !led2;
+                // time,data<cr>
+                fprintf(fp,"%.2f,%.2f,%.2f,%.2f,%.2f\n",grx.read()*3.3, gry.read()*3.3,acx.read()*3.3,acy.read()*3.3,acz.read()*3.3);
+                //pc.printf("%f,%f,%f\n",acx.read(),acy.read(),acz.read());
+                lcd.locate(0,0);
+                lcd.printf("gx=%.2f,gy=%.2f",grx.read()*3.3, gry.read()*3.3);
+                //lcd.printf("%.2f", f);
+                lcd.locate(0,1);
+                lcd.printf("ax=%.2f,ay=%.2f,az=%.2f",acx.read()*3.3,acy.read()*3.3,acz.read()*3.3);
+                wait (.01);
+            }
+            fclose(fp);
+           // lcd.cls();
+            //lcd.locate(0,0);
+            ///lcd.printf("Press button to start");
+           // wait(.1);
+        }
+    }
+}
+
+
+