Diff: seg_checker.cpp

Revision:

0:7116ad539a0c

diff -r 000000000000 -r 7116ad539a0c seg_checker.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/seg_checker.cpp	Sat Sep 26 20:53:53 2020 +0000
@@ -0,0 +1,40 @@
+/*
+Title:          7 Segment Checker
+Author:         David Ross 
+Date:           May 27th, 2016
+Description:    This program will individually light up segments
+                a, b, c, ... , h (dot) continually with a 0.5 second
+                delay between each segment displayed
+*/
+
+#include "mbed.h"
+
+// Declaration Section for seven_segs
+
+BusOut seven_segs (D2, D3, D4, D6, D7, D9, D10, D11);   // MSB=D11, LSB=D2
+int main(void)
+{
+    
+    unsigned char value=0x80;               // set value for CC Display
+    unsigned char temp;                     // temp value for troubleshooting
+    for(;;)                                 // loop forever
+    {
+        temp= ~value;                       // invert value for CA display
+        seven_segs= temp ;                  // send value to 7 segments
+        wait_ms(500);                       // wait 0.5 seconds
+        value=value >> 1;                   // shift  to select next segment
+        if(value < 1)                       // if value is 0
+        {
+            value=1;                        // then reset to 1
+            do                              // reverses pattern
+            {
+                temp= ~value;               // invert for CA display
+                seven_segs= temp;           // send value to 7 sements
+                wait_ms(500);               // wait 0.5 seconds
+                value = value <<1;          // shift to select next segment
+            }while (value<0x80);            // as long as < 0x80 
+            value=0x80;                     // then reset value to 0x80
+        }
+        
+    }       
+}
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