lzbp li / mbed-stm32l0l1-src-un

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Fork of mbed-stm32l0/l1-src by lzbp li

api/BusIn.h@212:34d62c0b2af6, 2014-05-26 (annotated)

Committer:
mbed_official
Date:
Mon May 26 18:15:07 2014 +0100
Revision:
212:34d62c0b2af6
Parent:
160:6870f452afa4
Child:
455:8bc3a354916d
Synchronized with git revision f65b7d907785089e8dd942446f1c974b3a213a39



Full URL: https://github.com/mbedmicro/mbed/commit/f65b7d907785089e8dd942446f1c974b3a213a39/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 13:0645d8841f51 1 /* mbed Microcontroller Library
bogdanm 13:0645d8841f51 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 13:0645d8841f51 3 *
bogdanm 13:0645d8841f51 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 13:0645d8841f51 5 * you may not use this file except in compliance with the License.
bogdanm 13:0645d8841f51 6 * You may obtain a copy of the License at
bogdanm 13:0645d8841f51 7 *
bogdanm 13:0645d8841f51 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 13:0645d8841f51 9 *
bogdanm 13:0645d8841f51 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 13:0645d8841f51 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 13:0645d8841f51 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 13:0645d8841f51 13 * See the License for the specific language governing permissions and
bogdanm 13:0645d8841f51 14 * limitations under the License.
bogdanm 13:0645d8841f51 15 */
bogdanm 13:0645d8841f51 16 #ifndef MBED_BUSIN_H
bogdanm 13:0645d8841f51 17 #define MBED_BUSIN_H
bogdanm 13:0645d8841f51 18
bogdanm 13:0645d8841f51 19 #include "platform.h"
bogdanm 13:0645d8841f51 20 #include "DigitalIn.h"
bogdanm 13:0645d8841f51 21
bogdanm 13:0645d8841f51 22 namespace mbed {
bogdanm 13:0645d8841f51 23
bogdanm 13:0645d8841f51 24 /** A digital input bus, used for reading the state of a collection of pins
bogdanm 13:0645d8841f51 25 */
bogdanm 13:0645d8841f51 26 class BusIn {
bogdanm 13:0645d8841f51 27
bogdanm 13:0645d8841f51 28 public:
bogdanm 13:0645d8841f51 29 /* Group: Configuration Methods */
bogdanm 13:0645d8841f51 30
bogdanm 13:0645d8841f51 31 /** Create an BusIn, connected to the specified pins
bogdanm 13:0645d8841f51 32 *
bogdanm 13:0645d8841f51 33 * @param <n> DigitalIn pin to connect to bus bit <n> (p5-p30, NC)
bogdanm 13:0645d8841f51 34 *
bogdanm 13:0645d8841f51 35 * @note
bogdanm 13:0645d8841f51 36 * It is only required to specify as many pin variables as is required
bogdanm 13:0645d8841f51 37 * for the bus; the rest will default to NC (not connected)
bogdanm 13:0645d8841f51 38 */
bogdanm 13:0645d8841f51 39 BusIn(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC,
bogdanm 13:0645d8841f51 40 PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC,
bogdanm 13:0645d8841f51 41 PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC,
bogdanm 13:0645d8841f51 42 PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC);
bogdanm 13:0645d8841f51 43
bogdanm 13:0645d8841f51 44 BusIn(PinName pins[16]);
bogdanm 13:0645d8841f51 45
bogdanm 13:0645d8841f51 46 virtual ~BusIn();
bogdanm 13:0645d8841f51 47
bogdanm 13:0645d8841f51 48 /** Read the value of the input bus
bogdanm 13:0645d8841f51 49 *
bogdanm 13:0645d8841f51 50 * @returns
bogdanm 13:0645d8841f51 51 * An integer with each bit corresponding to the value read from the associated DigitalIn pin
bogdanm 13:0645d8841f51 52 */
bogdanm 13:0645d8841f51 53 int read();
mbed_official 212:34d62c0b2af6 54
mbed_official 160:6870f452afa4 55 /** Set the input pin mode
mbed_official 160:6870f452afa4 56 *
mbed_official 160:6870f452afa4 57 * @param mode PullUp, PullDown, PullNone
mbed_official 160:6870f452afa4 58 */
mbed_official 160:6870f452afa4 59 void mode(PinMode pull);
mbed_official 212:34d62c0b2af6 60
bogdanm 13:0645d8841f51 61 #ifdef MBED_OPERATORS
bogdanm 13:0645d8841f51 62 /** A shorthand for read()
bogdanm 13:0645d8841f51 63 */
bogdanm 13:0645d8841f51 64 operator int();
bogdanm 13:0645d8841f51 65 #endif
bogdanm 13:0645d8841f51 66
bogdanm 13:0645d8841f51 67 protected:
bogdanm 13:0645d8841f51 68 DigitalIn* _pin[16];
mbed_official 212:34d62c0b2af6 69
mbed_official 212:34d62c0b2af6 70 /* disallow copy constructor and assignment operators */
mbed_official 212:34d62c0b2af6 71 private:
mbed_official 212:34d62c0b2af6 72 BusIn(const BusIn&);
mbed_official 212:34d62c0b2af6 73 BusIn & operator = (const BusIn&);
bogdanm 13:0645d8841f51 74 };
bogdanm 13:0645d8841f51 75
bogdanm 13:0645d8841f51 76 } // namespace mbed
bogdanm 13:0645d8841f51 77
bogdanm 13:0645d8841f51 78 #endif