The official mbed C/C SDK provides the software platform and libraries to build your applications.
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PortIn.h@65:5798e58a58b1, 2013-08-12 (annotated)
- Committer:
- bogdanm
- Date:
- Mon Aug 12 13:17:46 2013 +0300
- Revision:
- 65:5798e58a58b1
- Parent:
- 59:0883845fe643
New target (LPC4088), new features (interrupt chaining), bug fixes (KL25Z I2C).
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bogdanm | 65:5798e58a58b1 | 1 | /* mbed Microcontroller Library |
bogdanm | 65:5798e58a58b1 | 2 | * Copyright (c) 2006-2013 ARM Limited |
bogdanm | 65:5798e58a58b1 | 3 | * |
bogdanm | 65:5798e58a58b1 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
bogdanm | 65:5798e58a58b1 | 5 | * you may not use this file except in compliance with the License. |
bogdanm | 65:5798e58a58b1 | 6 | * You may obtain a copy of the License at |
bogdanm | 65:5798e58a58b1 | 7 | * |
bogdanm | 65:5798e58a58b1 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
bogdanm | 65:5798e58a58b1 | 9 | * |
bogdanm | 65:5798e58a58b1 | 10 | * Unless required by applicable law or agreed to in writing, software |
bogdanm | 65:5798e58a58b1 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
bogdanm | 65:5798e58a58b1 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
bogdanm | 65:5798e58a58b1 | 13 | * See the License for the specific language governing permissions and |
bogdanm | 65:5798e58a58b1 | 14 | * limitations under the License. |
bogdanm | 65:5798e58a58b1 | 15 | */ |
bogdanm | 65:5798e58a58b1 | 16 | #ifndef MBED_PORTIN_H |
bogdanm | 65:5798e58a58b1 | 17 | #define MBED_PORTIN_H |
bogdanm | 65:5798e58a58b1 | 18 | |
bogdanm | 65:5798e58a58b1 | 19 | #include "platform.h" |
bogdanm | 65:5798e58a58b1 | 20 | |
bogdanm | 65:5798e58a58b1 | 21 | #if DEVICE_PORTIN |
bogdanm | 65:5798e58a58b1 | 22 | |
bogdanm | 65:5798e58a58b1 | 23 | #include "port_api.h" |
bogdanm | 65:5798e58a58b1 | 24 | |
bogdanm | 65:5798e58a58b1 | 25 | namespace mbed { |
bogdanm | 65:5798e58a58b1 | 26 | |
bogdanm | 65:5798e58a58b1 | 27 | /** A multiple pin digital input |
bogdanm | 65:5798e58a58b1 | 28 | * |
bogdanm | 65:5798e58a58b1 | 29 | * Example: |
bogdanm | 65:5798e58a58b1 | 30 | * @code |
bogdanm | 65:5798e58a58b1 | 31 | * // Switch on an LED if any of mbed pins 21-26 is high |
bogdanm | 65:5798e58a58b1 | 32 | * |
bogdanm | 65:5798e58a58b1 | 33 | * #include "mbed.h" |
bogdanm | 65:5798e58a58b1 | 34 | * |
bogdanm | 65:5798e58a58b1 | 35 | * PortIn p(Port2, 0x0000003F); // p21-p26 |
bogdanm | 65:5798e58a58b1 | 36 | * DigitalOut ind(LED4); |
bogdanm | 65:5798e58a58b1 | 37 | * |
bogdanm | 65:5798e58a58b1 | 38 | * int main() { |
bogdanm | 65:5798e58a58b1 | 39 | * while(1) { |
bogdanm | 65:5798e58a58b1 | 40 | * int pins = p.read(); |
bogdanm | 65:5798e58a58b1 | 41 | * if(pins) { |
bogdanm | 65:5798e58a58b1 | 42 | * ind = 1; |
bogdanm | 65:5798e58a58b1 | 43 | * } else { |
bogdanm | 65:5798e58a58b1 | 44 | * ind = 0; |
bogdanm | 65:5798e58a58b1 | 45 | * } |
bogdanm | 65:5798e58a58b1 | 46 | * } |
bogdanm | 65:5798e58a58b1 | 47 | * } |
bogdanm | 65:5798e58a58b1 | 48 | * @endcode |
bogdanm | 65:5798e58a58b1 | 49 | */ |
bogdanm | 65:5798e58a58b1 | 50 | class PortIn { |
bogdanm | 65:5798e58a58b1 | 51 | public: |
bogdanm | 65:5798e58a58b1 | 52 | |
bogdanm | 65:5798e58a58b1 | 53 | /** Create an PortIn, connected to the specified port |
bogdanm | 65:5798e58a58b1 | 54 | * |
bogdanm | 65:5798e58a58b1 | 55 | * @param port Port to connect to (Port0-Port5) |
bogdanm | 65:5798e58a58b1 | 56 | * @param mask A bitmask to identify which bits in the port should be included (0 - ignore) |
bogdanm | 65:5798e58a58b1 | 57 | */ |
bogdanm | 65:5798e58a58b1 | 58 | PortIn(PortName port, int mask = 0xFFFFFFFF) { |
bogdanm | 65:5798e58a58b1 | 59 | port_init(&_port, port, mask, PIN_INPUT); |
bogdanm | 65:5798e58a58b1 | 60 | } |
bogdanm | 65:5798e58a58b1 | 61 | |
bogdanm | 65:5798e58a58b1 | 62 | /** Read the value currently output on the port |
bogdanm | 65:5798e58a58b1 | 63 | * |
bogdanm | 65:5798e58a58b1 | 64 | * @returns |
bogdanm | 65:5798e58a58b1 | 65 | * An integer with each bit corresponding to associated port pin setting |
bogdanm | 65:5798e58a58b1 | 66 | */ |
bogdanm | 65:5798e58a58b1 | 67 | int read() { |
bogdanm | 65:5798e58a58b1 | 68 | return port_read(&_port); |
bogdanm | 65:5798e58a58b1 | 69 | } |
bogdanm | 65:5798e58a58b1 | 70 | |
bogdanm | 65:5798e58a58b1 | 71 | /** Set the input pin mode |
bogdanm | 65:5798e58a58b1 | 72 | * |
bogdanm | 65:5798e58a58b1 | 73 | * @param mode PullUp, PullDown, PullNone, OpenDrain |
bogdanm | 65:5798e58a58b1 | 74 | */ |
bogdanm | 65:5798e58a58b1 | 75 | void mode(PinMode mode) { |
bogdanm | 65:5798e58a58b1 | 76 | port_mode(&_port, mode); |
bogdanm | 65:5798e58a58b1 | 77 | } |
bogdanm | 65:5798e58a58b1 | 78 | |
bogdanm | 65:5798e58a58b1 | 79 | /** A shorthand for read() |
bogdanm | 65:5798e58a58b1 | 80 | */ |
bogdanm | 65:5798e58a58b1 | 81 | operator int() { |
bogdanm | 65:5798e58a58b1 | 82 | return read(); |
bogdanm | 65:5798e58a58b1 | 83 | } |
bogdanm | 65:5798e58a58b1 | 84 | |
bogdanm | 65:5798e58a58b1 | 85 | private: |
bogdanm | 65:5798e58a58b1 | 86 | port_t _port; |
bogdanm | 65:5798e58a58b1 | 87 | }; |
bogdanm | 65:5798e58a58b1 | 88 | |
bogdanm | 65:5798e58a58b1 | 89 | } // namespace mbed |
bogdanm | 65:5798e58a58b1 | 90 | |
bogdanm | 65:5798e58a58b1 | 91 | #endif |
bogdanm | 65:5798e58a58b1 | 92 | |
bogdanm | 65:5798e58a58b1 | 93 | #endif |