Diff: main.cpp

Revision:

2:bdd8b01141d1

Parent:

1:81b129bec569

--- a/main.cpp	Wed Jan 06 12:24:45 2016 +0000
+++ b/main.cpp	Wed Dec 20 11:40:20 2017 +0000
@@ -2,7 +2,7 @@
 
 2645_FSM_Counter
 
-Sample code from ELEC2645 Week 16 Lab
+Sample code from ELEC2645
 
 Demonstrates how to implement a simple FSM counter
 
@@ -20,16 +20,13 @@
 InterruptIn sw2(SW2);
 InterruptIn sw3(SW3);
 
-// LEDs to display counter output
-// connect up external LEDs to these pins with appropriate current-limiting resistor
-BusOut output(PTB2,PTB3,PTB10,PTB11);
+// LEDs on Gamepad (1 to 4) - active-low 0 = on and 1 = off
+BusOut output(PTA1,PTA2,PTC2,PTC3);
 
 // array of states in the FSM, each element is the output of the counter
-int fsm[4] = {1,2,4,8};
+// set the output in binary to make it easier, 0 is LED on, 1 is LED off
+int fsm[4] = {0b0111,0b1011,0b1101,0b1110};
 
-// function prototypes
-// error function hangs flashing an LED
-void error();
 // set-up the on-board LEDs and switches
 void init_K64F();
 
@@ -38,7 +35,7 @@
     init_K64F();
     // set inital state 
     int state = 0;
-
+    
     while(1) {  // loop forever
 
         output = fsm[state];  // output current state
@@ -58,12 +55,12 @@
                 state = 0;
                 break;
             default:
-                error();  //invalid state - call error routine
+                error("Invalid state");  //invalid state - call error routine
                 // or could jump to starting state i.e. state = 0
                 break;  
         }
 
-        wait(0.2);  // small delay
+        wait(0.5);  // small delay
 
     }
 }
@@ -80,14 +77,4 @@
     sw2.mode(PullNone);
     sw3.mode(PullNone);
 
-}
-
-void error()
-{
-    while(1) {  // if error, hang while flashing error message
-        r_led = 0;
-        wait(0.2);
-        r_led = 1;
-        wait(0.2);    
-    }    
 }
\ No newline at end of file