Paul van der Wielen / Mbed 2 deprecated Wiegand

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Dependencies:   mbed

Diff: wiegand.h

Revision:
1:024f831fa51e
Parent:
0:033aa4854957
--- a/wiegand.h	Thu Feb 03 18:48:04 2011 +0000
+++ b/wiegand.h	Sun Jan 19 14:19:09 2014 +0000
@@ -32,6 +32,7 @@
  */
  
 #include "mbed.h"
+#define W_PULSES 26
 
 class Wiegand {
 public:
@@ -46,11 +47,11 @@
      * Interrupt driven signal from data0 data line
      */
     void data_0() {
-        if (_pulses == 26) {
+        if (_pulses == W_PULSES) {
             clear();
         }
         _wiegand = ((_wiegand << 1) & 0x3ffffff) + 0x00;
-        if (_pulses < 13) {
+        if (_pulses < W_PULSES / 2) {
             _e_par = (_e_par & 0x01);
         } else {
             _e_par = (_e_par & 0x01);
@@ -62,11 +63,11 @@
      * Interrupt driven signal from data1 data line
      */
     void data_1() {
-        if (_pulses == 26) {
+        if (_pulses == W_PULSES) {
             clear();
         }
         _wiegand = ((_wiegand << 1) & 0x3ffffff) + 0x01;
-        if (_pulses < 13) {
+        if (_pulses < W_PULSES / 2) {
             _o_par = (_o_par & 0x01) + 0x01;
         } else {
             _o_par = (_o_par & 0x01) + 0x01;
@@ -93,7 +94,7 @@
      * returns true if we have read all pulses and we have proper parity for both data halves
      */
     bool readable() {
-        if (( _pulses == 26) && (_e_par == 0) && (_o_par == 1)) {
+        if (( _pulses == W_PULSES) && (_e_par == 0) && (_o_par == 1)) {
             return true;
         } else {
             return false;