Diff: main.cpp

Revision:

0:b426109564a6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Apr 20 00:13:30 2012 +0000
@@ -0,0 +1,46 @@
+#include "mbed.h"
+
+Serial pc(USBTX, USBRX);
+
+AnalogIn input(p20);
+InterruptIn int_reset(p21);
+DigitalOut myled(LED1);
+
+int reset; // init enable 
+int i; // time counter (*10sec)
+int sum_time; // reset time
+double bat_volt; // touch pen battery (0.0 --> 1.0 * 3.3V)  
+
+
+void reset_det() {
+
+    reset = 1;           
+    sum_time = i * 10;
+
+}
+
+
+int main() {
+
+    // initialize
+    reset = 0;
+    i = 0;
+    sum_time = 0;
+    bat_volt = 0;
+
+    int_reset.fall(&reset_det); // interrupt
+
+    while(1) {
+
+       bat_volt = input.read() * 3.3;       
+       wait(10);
+       i++;
+       myled = !myled;    
+  
+       if (reset == 0)        
+           pc.printf("time = %d sec, reset time = %d, battery volt = %f V\r\n",i*10,sum_time,bat_volt);                       
+       else         
+           pc.printf("---reset detect--- : time = %d sec, reset time = %d, battery volt = %f V\r\n",i*10,sum_time,bat_volt);                                
+       
+    }
+}