Agra-GPS / FreePilot_V2-3

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Dependencies:   FreePilot PinDetect mbed-src

Fork of FreePilot_V2-2 by Agra-GPS

Diff: MODSERIAL.cpp

Revision:
18:21ef26402365
Parent:
9:b3cdae80e7a9
Child:
23:5c45c21f36b7
--- a/MODSERIAL.cpp	Tue Mar 08 01:42:25 2011 +0000
+++ b/MODSERIAL.cpp	Thu Apr 21 09:20:41 2011 +0000
@@ -105,5 +105,24 @@
     }
 }
 
+int 
+MODSERIAL::rxDiscardLastChar(void)
+{
+    // This function can only be called indirectly from
+    // an rxCallback function. Therefore, we know we 
+    // just placed a char into the buffer.
+    char c = buffer[RxIrq][buffer_in[RxIrq]];
+    
+    if (buffer_count[RxIrq]) {        
+        buffer_count[RxIrq]--;
+        buffer_in[RxIrq]--;
+        if (buffer_in[RxIrq] < 0) {
+            buffer_in[RxIrq] = buffer_size[RxIrq] - 1;
+        }
+    }
+    
+    return (int)c;
+}
+
 
 }; // namespace AjK ends