Diff: main.cpp

Revision:

0:d80410b1dfec

Child:

1:8c34bb700858

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Feb 20 04:55:43 2014 +0000
@@ -0,0 +1,73 @@
+#include "mbed.h"
+#include "common.h"
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);  
+Serial pc(USBTX, USBRX);
+
+typedef union bytes {
+    double d ;
+    char c[8];
+}bytes;
+
+void printDoubleToHex(double d){
+    bytes b;
+    b.d = d;
+    pc.printf("double to hex:\r\n");
+    pc.printf("%f -> %x %x %x %x %x %x %x %x\r\n", b.d, b.c[0], b.c[1], b.c[2], b.c[3], b.c[4], b.c[5], b.c[6], b.c[7]);
+     
+}
+
+
+void printHexToDouble(char *arr){
+    bytes b;
+    for (int i=0; i<8; ++i)
+        b.c[i] = arr[i]; 
+    pc.printf("received hex: %x %x %x %x %x %x %x %x \r\n", b.c[0], b.c[1], b.c[2], b.c[3], b.c[4], b.c[5], b.c[6], b.c[7]);
+    pc.printf("convert to: %f\r\n", b.d);
+     
+}
+
+// Serial Interrupt
+const int len = 64;
+char inCmd[len];
+bool inCmdReady = false;
+
+void rxCallback() {
+    static int idx = 0; 
+    toggle(led2); 
+    char c = pc.getc();           
+    switch (c){      
+        case '\n': 
+            break;
+        case '\r':
+            inCmd[idx]='\0';
+            idx=0;
+            inCmdReady = true;  
+            break;       
+        default:
+            if(idx<len){
+                inCmd[idx++] = c;
+            }
+            break;
+    }
+}
+
+int main() {
+    pc.attach(&rxCallback, Serial::RxIrq); 
+    pc.printf("\r\n\r\n\r\n");
+    pc.printf("Shalab - Tutorial_BinarySerialCom\r\n");  
+    
+    while(1) {
+        if (inCmdReady)
+        {
+            toggle(led3);
+            printHexToDouble(inCmd); 
+            inCmdReady = false;
+        }
+        led1 != led1;
+        wait(0.1);
+    }
+}