FRDM-K64F, Avnet M14A2A, Grove Shield, to create smart home system. In use with AT&Ts M2x & Flow.
Dependencies: mbed FXOS8700CQ MODSERIAL
mbed/BusOut.h@84:fc8c9b39723a, 2019-03-06 (annotated)
- Committer:
- jwhammel
- Date:
- Wed Mar 06 21:11:49 2019 +0000
- Revision:
- 84:fc8c9b39723a
Embedded Systems Midterm Project Spring 2019
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
jwhammel | 84:fc8c9b39723a | 1 | /* mbed Microcontroller Library |
jwhammel | 84:fc8c9b39723a | 2 | * Copyright (c) 2006-2013 ARM Limited |
jwhammel | 84:fc8c9b39723a | 3 | * |
jwhammel | 84:fc8c9b39723a | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
jwhammel | 84:fc8c9b39723a | 5 | * you may not use this file except in compliance with the License. |
jwhammel | 84:fc8c9b39723a | 6 | * You may obtain a copy of the License at |
jwhammel | 84:fc8c9b39723a | 7 | * |
jwhammel | 84:fc8c9b39723a | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
jwhammel | 84:fc8c9b39723a | 9 | * |
jwhammel | 84:fc8c9b39723a | 10 | * Unless required by applicable law or agreed to in writing, software |
jwhammel | 84:fc8c9b39723a | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
jwhammel | 84:fc8c9b39723a | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
jwhammel | 84:fc8c9b39723a | 13 | * See the License for the specific language governing permissions and |
jwhammel | 84:fc8c9b39723a | 14 | * limitations under the License. |
jwhammel | 84:fc8c9b39723a | 15 | */ |
jwhammel | 84:fc8c9b39723a | 16 | #ifndef MBED_BUSOUT_H |
jwhammel | 84:fc8c9b39723a | 17 | #define MBED_BUSOUT_H |
jwhammel | 84:fc8c9b39723a | 18 | |
jwhammel | 84:fc8c9b39723a | 19 | #include "DigitalOut.h" |
jwhammel | 84:fc8c9b39723a | 20 | |
jwhammel | 84:fc8c9b39723a | 21 | namespace mbed { |
jwhammel | 84:fc8c9b39723a | 22 | |
jwhammel | 84:fc8c9b39723a | 23 | /** A digital output bus, used for setting the state of a collection of pins |
jwhammel | 84:fc8c9b39723a | 24 | */ |
jwhammel | 84:fc8c9b39723a | 25 | class BusOut { |
jwhammel | 84:fc8c9b39723a | 26 | |
jwhammel | 84:fc8c9b39723a | 27 | public: |
jwhammel | 84:fc8c9b39723a | 28 | |
jwhammel | 84:fc8c9b39723a | 29 | /** Create an BusOut, connected to the specified pins |
jwhammel | 84:fc8c9b39723a | 30 | * |
jwhammel | 84:fc8c9b39723a | 31 | * @param p<n> DigitalOut pin to connect to bus bit <n> (p5-p30, NC) |
jwhammel | 84:fc8c9b39723a | 32 | * |
jwhammel | 84:fc8c9b39723a | 33 | * @note |
jwhammel | 84:fc8c9b39723a | 34 | * It is only required to specify as many pin variables as is required |
jwhammel | 84:fc8c9b39723a | 35 | * for the bus; the rest will default to NC (not connected) |
jwhammel | 84:fc8c9b39723a | 36 | */ |
jwhammel | 84:fc8c9b39723a | 37 | BusOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC, |
jwhammel | 84:fc8c9b39723a | 38 | PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC, |
jwhammel | 84:fc8c9b39723a | 39 | PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC, |
jwhammel | 84:fc8c9b39723a | 40 | PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC); |
jwhammel | 84:fc8c9b39723a | 41 | |
jwhammel | 84:fc8c9b39723a | 42 | BusOut(PinName pins[16]); |
jwhammel | 84:fc8c9b39723a | 43 | |
jwhammel | 84:fc8c9b39723a | 44 | virtual ~BusOut(); |
jwhammel | 84:fc8c9b39723a | 45 | |
jwhammel | 84:fc8c9b39723a | 46 | /** Write the value to the output bus |
jwhammel | 84:fc8c9b39723a | 47 | * |
jwhammel | 84:fc8c9b39723a | 48 | * @param value An integer specifying a bit to write for every corresponding DigitalOut pin |
jwhammel | 84:fc8c9b39723a | 49 | */ |
jwhammel | 84:fc8c9b39723a | 50 | void write(int value); |
jwhammel | 84:fc8c9b39723a | 51 | |
jwhammel | 84:fc8c9b39723a | 52 | /** Read the value currently output on the bus |
jwhammel | 84:fc8c9b39723a | 53 | * |
jwhammel | 84:fc8c9b39723a | 54 | * @returns |
jwhammel | 84:fc8c9b39723a | 55 | * An integer with each bit corresponding to associated DigitalOut pin setting |
jwhammel | 84:fc8c9b39723a | 56 | */ |
jwhammel | 84:fc8c9b39723a | 57 | int read(); |
jwhammel | 84:fc8c9b39723a | 58 | |
jwhammel | 84:fc8c9b39723a | 59 | #ifdef MBED_OPERATORS |
jwhammel | 84:fc8c9b39723a | 60 | /** A shorthand for write() |
jwhammel | 84:fc8c9b39723a | 61 | */ |
jwhammel | 84:fc8c9b39723a | 62 | BusOut& operator= (int v); |
jwhammel | 84:fc8c9b39723a | 63 | BusOut& operator= (BusOut& rhs); |
jwhammel | 84:fc8c9b39723a | 64 | |
jwhammel | 84:fc8c9b39723a | 65 | /** A shorthand for read() |
jwhammel | 84:fc8c9b39723a | 66 | */ |
jwhammel | 84:fc8c9b39723a | 67 | operator int(); |
jwhammel | 84:fc8c9b39723a | 68 | #endif |
jwhammel | 84:fc8c9b39723a | 69 | |
jwhammel | 84:fc8c9b39723a | 70 | protected: |
jwhammel | 84:fc8c9b39723a | 71 | DigitalOut* _pin[16]; |
jwhammel | 84:fc8c9b39723a | 72 | |
jwhammel | 84:fc8c9b39723a | 73 | /* disallow copy constructor and assignment operators */ |
jwhammel | 84:fc8c9b39723a | 74 | private: |
jwhammel | 84:fc8c9b39723a | 75 | BusOut(const BusOut&); |
jwhammel | 84:fc8c9b39723a | 76 | BusOut & operator = (const BusOut&); |
jwhammel | 84:fc8c9b39723a | 77 | }; |
jwhammel | 84:fc8c9b39723a | 78 | |
jwhammel | 84:fc8c9b39723a | 79 | } // namespace mbed |
jwhammel | 84:fc8c9b39723a | 80 | |
jwhammel | 84:fc8c9b39723a | 81 | #endif |
jwhammel | 84:fc8c9b39723a | 82 |