Revision 1:a542052a259f, committed 2018-01-20

Comitter:

dhenis

Date:

Sat Jan 20 23:03:07 2018 +0000

Parent:

0:83abbbeb9a3d

Commit message:

1 lab number 5

Changed in this revision

--- a/main.cpp	Sat Jan 13 18:26:10 2018 +0000
+++ b/main.cpp	Sat Jan 20 23:03:07 2018 +0000
@@ -3,30 +3,151 @@
 
 #include "mbed.h"
 
+#include "rtos.h"
+
+Serial pc(USBTX, USBRX); // tx, rx
 // Variable for a second thread
 Thread thread;
 
-DigitalOut ledA(LED1); // Red LED
-DigitalOut ledB(LED2); // Green LED
+DigitalOut myled1(LED1);
+DigitalOut myled2(LED2);
+DigitalOut myled3(LED3);
 
+int speed = 200; // global variable
 // This method is run in the second thread
 void ledB_thread() {
-    while (true) {
-        Thread::wait(250);
-        ledB = !ledB;
-    }
+    
+    // serial
+    
+    char c ;
+    pc.printf("Enter a character>");
+    while(1) {
+        myled1 = 1;  // turn on
+        c = pc.getc();
+        pc.putc(c);
+        pc.putc('\r');
+        pc.putc('\n');
+        Thread::wait(200);
+        pc.printf("Enter 'S' for slower and 'F' for faster : ");
+        pc.putc('\n');
+
+// 200ms, 400ms, 800ms and 1600ms
+
+        if(c == 'f'){
+            
+              speed /= 2;
+              
+              // interlocking
+              if (speed <=200){ speed = 200;}
+              
+            
+            }else if(c == 's'){
+                
+              speed *= 2;
+            
+              // interlocking
+              if (speed >=1600){ speed = 1600;}
+            }
+            
+            
+        
+//yled1 = 0;  // turn off
+}
+//
+//    while (true) {
+//        Thread::wait(1000);
+//        myled1 = 1;
+//    }
 }
 
 // This is the main thread
 int main (void) {
-    ledA = 1 ; // off
-    ledB = 1 ; // off
+    
     
     // start the second thread
     thread.start(callback(ledB_thread));
+    
+    
+// blinky led in step 3
 
-    while (true) {
-        Thread::wait(400);
-        ledA = !ledA;
+    int state = 1;
+    while(1) {
+        Thread::wait(speed);
+        switch(state){
+//            case 0:
+//                Thread::wait(1500);
+//                myled1 = 1;
+//
+//            break;
+
+            case 1:
+
+
+                myled1 = 1; // turn off
+
+                myled2 = 1;
+
+                myled3 = 1;
+
+
+            break;
+
+            case 2:
+
+
+                myled1 = 0; // turn on
+
+                myled2 = 1;
+
+                myled3 = 1;
+
+
+
+
+            break;
+
+            case 3:
+
+
+                myled1 = 0; // turn on
+
+                myled2 = 0;
+
+                myled3 = 1;
+
+
+            break;
+
+            case 4:
+
+                myled1 = 0; // turn on
+
+                myled2 = 0;
+
+                myled3 = 0;
+
+
+            break;
+
+            }
+
+        state ++;
+
+        if(state >4){
+        state =1 ;
+        }
     }
+
+
+//
+//    while (true) {
+//        Thread::wait(400);
+//        // blinky led
+//        
+//        
+//        
+//        
+//        
+//        ledA = !ledA;
+//    }
 }