mbed library sources
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Diff: cpp/BusOut.h
- Revision:
- 9:0ce32e54c9a7
- Parent:
- 8:4e25b8576136
- Child:
- 10:3bc89ef62ce7
--- a/cpp/BusOut.h Thu May 30 16:59:31 2013 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,76 +0,0 @@ -/* mbed Microcontroller Library - * Copyright (c) 2006-2013 ARM Limited - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -#ifndef MBED_BUSOUT_H -#define MBED_BUSOUT_H - -#include "DigitalOut.h" - -namespace mbed { - -/** A digital output bus, used for setting the state of a collection of pins - */ -class BusOut { - -public: - - /** Create an BusOut, connected to the specified pins - * - * @param p<n> DigitalOut pin to connect to bus bit <n> (p5-p30, NC) - * - * @note - * It is only required to specify as many pin variables as is required - * for the bus; the rest will default to NC (not connected) - */ - BusOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC, - PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC, - PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC, - PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC); - - BusOut(PinName pins[16]); - - virtual ~BusOut(); - - /** Write the value to the output bus - * - * @param value An integer specifying a bit to write for every corresponding DigitalOut pin - */ - void write(int value); - - /** Read the value currently output on the bus - * - * @returns - * An integer with each bit corresponding to associated DigitalOut pin setting - */ - int read(); - -#ifdef MBED_OPERATORS - /** A shorthand for write() - */ - BusOut& operator= (int v); - BusOut& operator= (BusOut& rhs); - - /** A shorthand for read() - */ - operator int(); -#endif - -protected: - DigitalOut* _pin[16]; -}; - -} // namespace mbed - -#endif