Birkbeck College Mobile and Ubiquitous Computing IoT Lab Exercise 2
Dependencies: BLE_API_Native_blog
mbed/BusInOut.h@0:e8fdba0ed044, 2015-03-07 (annotated)
- Committer:
- gkroussos
- Date:
- Sat Mar 07 16:34:53 2015 +0000
- Revision:
- 0:e8fdba0ed044
MUC IoT Workshop v1.0
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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gkroussos | 0:e8fdba0ed044 | 1 | /* mbed Microcontroller Library |
gkroussos | 0:e8fdba0ed044 | 2 | * Copyright (c) 2006-2013 ARM Limited |
gkroussos | 0:e8fdba0ed044 | 3 | * |
gkroussos | 0:e8fdba0ed044 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
gkroussos | 0:e8fdba0ed044 | 5 | * you may not use this file except in compliance with the License. |
gkroussos | 0:e8fdba0ed044 | 6 | * You may obtain a copy of the License at |
gkroussos | 0:e8fdba0ed044 | 7 | * |
gkroussos | 0:e8fdba0ed044 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
gkroussos | 0:e8fdba0ed044 | 9 | * |
gkroussos | 0:e8fdba0ed044 | 10 | * Unless required by applicable law or agreed to in writing, software |
gkroussos | 0:e8fdba0ed044 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
gkroussos | 0:e8fdba0ed044 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
gkroussos | 0:e8fdba0ed044 | 13 | * See the License for the specific language governing permissions and |
gkroussos | 0:e8fdba0ed044 | 14 | * limitations under the License. |
gkroussos | 0:e8fdba0ed044 | 15 | */ |
gkroussos | 0:e8fdba0ed044 | 16 | #ifndef MBED_BUSINOUT_H |
gkroussos | 0:e8fdba0ed044 | 17 | #define MBED_BUSINOUT_H |
gkroussos | 0:e8fdba0ed044 | 18 | |
gkroussos | 0:e8fdba0ed044 | 19 | #include "DigitalInOut.h" |
gkroussos | 0:e8fdba0ed044 | 20 | |
gkroussos | 0:e8fdba0ed044 | 21 | namespace mbed { |
gkroussos | 0:e8fdba0ed044 | 22 | |
gkroussos | 0:e8fdba0ed044 | 23 | /** A digital input output bus, used for setting the state of a collection of pins |
gkroussos | 0:e8fdba0ed044 | 24 | */ |
gkroussos | 0:e8fdba0ed044 | 25 | class BusInOut { |
gkroussos | 0:e8fdba0ed044 | 26 | |
gkroussos | 0:e8fdba0ed044 | 27 | public: |
gkroussos | 0:e8fdba0ed044 | 28 | |
gkroussos | 0:e8fdba0ed044 | 29 | /** Create an BusInOut, connected to the specified pins |
gkroussos | 0:e8fdba0ed044 | 30 | * |
gkroussos | 0:e8fdba0ed044 | 31 | * @param p<n> DigitalInOut pin to connect to bus bit p<n> (p5-p30, NC) |
gkroussos | 0:e8fdba0ed044 | 32 | * |
gkroussos | 0:e8fdba0ed044 | 33 | * @note |
gkroussos | 0:e8fdba0ed044 | 34 | * It is only required to specify as many pin variables as is required |
gkroussos | 0:e8fdba0ed044 | 35 | * for the bus; the rest will default to NC (not connected) |
gkroussos | 0:e8fdba0ed044 | 36 | */ |
gkroussos | 0:e8fdba0ed044 | 37 | BusInOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC, |
gkroussos | 0:e8fdba0ed044 | 38 | PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC, |
gkroussos | 0:e8fdba0ed044 | 39 | PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC, |
gkroussos | 0:e8fdba0ed044 | 40 | PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC); |
gkroussos | 0:e8fdba0ed044 | 41 | |
gkroussos | 0:e8fdba0ed044 | 42 | BusInOut(PinName pins[16]); |
gkroussos | 0:e8fdba0ed044 | 43 | |
gkroussos | 0:e8fdba0ed044 | 44 | virtual ~BusInOut(); |
gkroussos | 0:e8fdba0ed044 | 45 | |
gkroussos | 0:e8fdba0ed044 | 46 | /* Group: Access Methods */ |
gkroussos | 0:e8fdba0ed044 | 47 | |
gkroussos | 0:e8fdba0ed044 | 48 | /** Write the value to the output bus |
gkroussos | 0:e8fdba0ed044 | 49 | * |
gkroussos | 0:e8fdba0ed044 | 50 | * @param value An integer specifying a bit to write for every corresponding DigitalInOut pin |
gkroussos | 0:e8fdba0ed044 | 51 | */ |
gkroussos | 0:e8fdba0ed044 | 52 | void write(int value); |
gkroussos | 0:e8fdba0ed044 | 53 | |
gkroussos | 0:e8fdba0ed044 | 54 | |
gkroussos | 0:e8fdba0ed044 | 55 | /** Read the value currently output on the bus |
gkroussos | 0:e8fdba0ed044 | 56 | * |
gkroussos | 0:e8fdba0ed044 | 57 | * @returns |
gkroussos | 0:e8fdba0ed044 | 58 | * An integer with each bit corresponding to associated DigitalInOut pin setting |
gkroussos | 0:e8fdba0ed044 | 59 | */ |
gkroussos | 0:e8fdba0ed044 | 60 | int read(); |
gkroussos | 0:e8fdba0ed044 | 61 | |
gkroussos | 0:e8fdba0ed044 | 62 | /** Set as an output |
gkroussos | 0:e8fdba0ed044 | 63 | */ |
gkroussos | 0:e8fdba0ed044 | 64 | void output(); |
gkroussos | 0:e8fdba0ed044 | 65 | |
gkroussos | 0:e8fdba0ed044 | 66 | /** Set as an input |
gkroussos | 0:e8fdba0ed044 | 67 | */ |
gkroussos | 0:e8fdba0ed044 | 68 | void input(); |
gkroussos | 0:e8fdba0ed044 | 69 | |
gkroussos | 0:e8fdba0ed044 | 70 | /** Set the input pin mode |
gkroussos | 0:e8fdba0ed044 | 71 | * |
gkroussos | 0:e8fdba0ed044 | 72 | * @param mode PullUp, PullDown, PullNone |
gkroussos | 0:e8fdba0ed044 | 73 | */ |
gkroussos | 0:e8fdba0ed044 | 74 | void mode(PinMode pull); |
gkroussos | 0:e8fdba0ed044 | 75 | |
gkroussos | 0:e8fdba0ed044 | 76 | #ifdef MBED_OPERATORS |
gkroussos | 0:e8fdba0ed044 | 77 | /** A shorthand for write() |
gkroussos | 0:e8fdba0ed044 | 78 | */ |
gkroussos | 0:e8fdba0ed044 | 79 | BusInOut& operator= (int v); |
gkroussos | 0:e8fdba0ed044 | 80 | BusInOut& operator= (BusInOut& rhs); |
gkroussos | 0:e8fdba0ed044 | 81 | |
gkroussos | 0:e8fdba0ed044 | 82 | /** A shorthand for read() |
gkroussos | 0:e8fdba0ed044 | 83 | */ |
gkroussos | 0:e8fdba0ed044 | 84 | operator int(); |
gkroussos | 0:e8fdba0ed044 | 85 | #endif |
gkroussos | 0:e8fdba0ed044 | 86 | |
gkroussos | 0:e8fdba0ed044 | 87 | protected: |
gkroussos | 0:e8fdba0ed044 | 88 | DigitalInOut* _pin[16]; |
gkroussos | 0:e8fdba0ed044 | 89 | }; |
gkroussos | 0:e8fdba0ed044 | 90 | |
gkroussos | 0:e8fdba0ed044 | 91 | } // namespace mbed |
gkroussos | 0:e8fdba0ed044 | 92 | |
gkroussos | 0:e8fdba0ed044 | 93 | #endif |