Diff: main.cpp

Revision:

0:d46c7e391377

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Apr 24 15:31:13 2014 +0000
@@ -0,0 +1,92 @@
+#include "mbed.h"
+#include "TSISensor.h"
+
+//DigitalOut myled(LED_BLUE);
+Serial pc(USBTX, USBRX);
+//PwmOut led(LED_GREEN);
+//TSISensor tsi;
+PwmOut r (LED_RED);
+PwmOut g (LED_GREEN);
+PwmOut b (LED_BLUE);
+Ticker tick;
+Timer t;
+
+#define  n    1000//1125
+#define  len  10*n/3
+void colorswing(void);
+int main() 
+{
+    int   i, j, k, q, x, nines, predigit,digits,total;
+    int  a[len];
+    
+    r.period(0.0001);
+    g.period(0.0001);
+    b.period(0.0001);
+    
+    tick.attach(&colorswing, 0.01);
+    
+    pc.baud(115200);
+    pc.printf("\nStart Pi Generator!\n");
+    total=0;
+    while(1)
+    {
+        //myled = !myled;
+        t.start();
+        digits=0;
+        for (j=1;j<=len;j++)
+            a[j] = 2;      
+        nines = 0;
+        predigit = 0;//               {First predigit is a 0}
+        for (j=1;j<=n;j++)
+        {
+            q = 0;
+            for(i=len;i>0;i--)
+            {
+                x    = 10*a[i] + q*i;
+                a[i] = x % (2*i - 1);
+                q    = x / (2*i - 1);
+                
+            }
+            a[1] = q % 10;
+            q = q / 10;
+            if (q == 9)
+            {    nines++;}
+            else
+            {    if (q == 10)
+                {
+                    pc.printf("%d",predigit+1);
+                    for (k=1;k<=nines;k++)// to nines do
+                        pc.printf("0");//            {zeros}
+                    predigit = 0;
+                    nines = 0;
+                }
+                else
+                {
+                    pc.printf("%d",predigit);
+                    predigit = q;
+                    if (nines != 0)// then
+                    {
+                        for(k=1;k<=nines;k++)// do
+                            pc.printf("9");
+                        nines = 0;
+                    }
+                }
+                digits++;digits+=nines;
+                
+            }
+        }t.stop();
+        pc.printf("%d\r\nDigits=%d\r\nTotal=%d\r\nTimerRequired=%fsec\r\n",predigit,digits,++total,t.read());
+        //led = 1.0 - tsi.readPercentage();
+        t.reset();
+    }
+}
+
+void colorswing()
+{
+    static float p=0;
+    p += 0.003;
+    if(p>3)p=0;
+    r = 1.0 - ((p < 1.0) ? 1.0 - p : (p > 2.0) ? p - 2.0 : 0.0);
+    g = 1.0 - ((p < 1.0) ? p : (p > 2.0) ? 0.0 : 2.0 - p);
+    b = 1.0 - ((p < 1.0) ? 0.0 : (p > 2.0) ? 3.0 - p : p - 1.0);        
+}
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