Wei Chang Shen / mbed-src

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of mbed-src by mbed official

Diff: api/BusOut.h

Revision:
455:8bc3a354916d
Parent:
212:34d62c0b2af6
diff -r a07e52520545 -r 8bc3a354916d api/BusOut.h
--- a/api/BusOut.h	Tue Jan 27 07:15:07 2015 +0000
+++ b/api/BusOut.h	Tue Jan 27 13:30:08 2015 +0000
@@ -56,12 +56,26 @@
      */
     int read();
 
+    /** Binary mask of bus pins connected to actual pins (not NC pins)
+     *  If bus pin is in NC state make corresponding bit will be cleared (set to 0), else bit will be set to 1
+     *
+     *  @returns
+     *    Binary mask of connected pins
+     */
+    int mask() {
+        return _nc_mask;
+    }
+
 #ifdef MBED_OPERATORS
     /** A shorthand for write()
      */
     BusOut& operator= (int v);
     BusOut& operator= (BusOut& rhs);
 
+    /** Access to particular bit in random-iterator fashion
+     */
+    DigitalOut& operator[] (int index);
+
     /** A shorthand for read()
      */
     operator int();
@@ -70,6 +84,12 @@
 protected:
     DigitalOut* _pin[16];
 
+    /** Mask of bus's NC pins
+     * If bit[n] is set to 1 - pin is connected
+     * if bit[n] is cleared - pin is not connected (NC)
+     */
+    int _nc_mask;
+
    /* disallow copy constructor and assignment operators */
 private:
     BusOut(const BusOut&);