Diff: MyRFID.cpp

Revision:

0:d441275f622f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MyRFID.cpp	Mon Aug 09 07:01:43 2010 +0000
@@ -0,0 +1,40 @@
+#include "MyRFID.h"
+#include "mbed.h"
+
+using namespace mbed;
+
+MyRFID::MyRFID(PinName tx, PinName rx)
+        : _rfid(tx,rx) {}
+
+
+
+int MyRFID::readable(void) {
+    return (_rfid.readable());
+}
+
+void MyRFID::baud(int baudrate) {
+    return (_rfid.baud(baudrate));
+}
+
+unsigned int MyRFID::read(void) {
+
+    unsigned int id=0;
+    int len,i;
+
+    _rfid.getc();//header
+    _rfid.getc();//header
+    len = _rfid.getc();
+
+    char data[len];
+    for (i=0;i<len;i++) {
+        data[i]=_rfid.getc();
+    }
+    if (data[0]==0x50) {//success
+        for (i=0;i<4;i++) {
+            id |= (data[4-i] << (i * 8));
+        }
+    } else {//failre
+    }
+
+    return id;
+}
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