Diff: main.cpp

Revision:

0:0e35751b8409

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Aug 18 11:33:21 2014 +0000
@@ -0,0 +1,76 @@
+#include "mbed.h"
+#define NUMDAT 15000
+#define DLY 250
+float micCB;
+char st[10];
+short dat[NUMDAT];
+int i;
+int k=0;
+
+LocalFileSystem local("local");    
+DigitalIn sw(p5);   
+AnalogIn micC(p16);     
+AnalogOut spOut(p18);
+BusOut   leds( LED4, LED3, LED2, LED1 ); 
+Ticker timer; 
+
+void offset(){
+    micCB=0;
+    for(i=0;i<100;i++) micCB+=micC; 
+    micCB/=100;
+}
+
+void fout(){
+    FILE *fp = fopen("/local/out.txt", "w");  
+    for(i=0;i<NUMDAT; i++){
+        fprintf(fp,"%d\n",dat[i]);
+    }
+    fclose(fp);
+}
+
+void fin(){
+    FILE *fp = fopen("/local/out.txt", "r");  
+    for(i=0;i<NUMDAT; i++){
+        fgets(st,10,fp);
+        dat[i]=atoi(st);
+    }
+    fclose(fp);
+}
+
+void record(){
+    for(i=0;i<NUMDAT; i++){
+        dat[i]=(int)((micC-micCB)*32768);
+        wait_us(DLY);
+    }
+}
+    
+void speak(){
+    for(i=0;i<NUMDAT; i++){
+        spOut=((float)dat[i])/32768*10+0.5; 
+        wait_us(DLY);
+    }
+}
+    
+
+int main() {
+    fin();
+    speak();
+    
+    leds=0;
+    offset();
+
+    while(1){
+        while(sw);
+        wait(2);    
+        leds=1;
+        record();
+        leds=0;    
+        wait(1);
+        speak();
+        fout();
+    }
+}
+
+
+
+