Dataloger
PortOut.h@0:666850d06c9f, 2015-08-20 (annotated)
- Committer:
- jhon309
- Date:
- Thu Aug 20 00:37:14 2015 +0000
- Revision:
- 0:666850d06c9f
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Who changed what in which revision?
User | Revision | Line number | New contents of line |
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jhon309 | 0:666850d06c9f | 1 | /* mbed Microcontroller Library |
jhon309 | 0:666850d06c9f | 2 | * Copyright (c) 2006-2013 ARM Limited |
jhon309 | 0:666850d06c9f | 3 | * |
jhon309 | 0:666850d06c9f | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
jhon309 | 0:666850d06c9f | 5 | * you may not use this file except in compliance with the License. |
jhon309 | 0:666850d06c9f | 6 | * You may obtain a copy of the License at |
jhon309 | 0:666850d06c9f | 7 | * |
jhon309 | 0:666850d06c9f | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
jhon309 | 0:666850d06c9f | 9 | * |
jhon309 | 0:666850d06c9f | 10 | * Unless required by applicable law or agreed to in writing, software |
jhon309 | 0:666850d06c9f | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
jhon309 | 0:666850d06c9f | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
jhon309 | 0:666850d06c9f | 13 | * See the License for the specific language governing permissions and |
jhon309 | 0:666850d06c9f | 14 | * limitations under the License. |
jhon309 | 0:666850d06c9f | 15 | */ |
jhon309 | 0:666850d06c9f | 16 | #ifndef MBED_PORTOUT_H |
jhon309 | 0:666850d06c9f | 17 | #define MBED_PORTOUT_H |
jhon309 | 0:666850d06c9f | 18 | |
jhon309 | 0:666850d06c9f | 19 | #include "platform.h" |
jhon309 | 0:666850d06c9f | 20 | |
jhon309 | 0:666850d06c9f | 21 | #if DEVICE_PORTOUT |
jhon309 | 0:666850d06c9f | 22 | |
jhon309 | 0:666850d06c9f | 23 | #include "port_api.h" |
jhon309 | 0:666850d06c9f | 24 | |
jhon309 | 0:666850d06c9f | 25 | namespace mbed { |
jhon309 | 0:666850d06c9f | 26 | /** A multiple pin digital out |
jhon309 | 0:666850d06c9f | 27 | * |
jhon309 | 0:666850d06c9f | 28 | * Example: |
jhon309 | 0:666850d06c9f | 29 | * @code |
jhon309 | 0:666850d06c9f | 30 | * // Toggle all four LEDs |
jhon309 | 0:666850d06c9f | 31 | * |
jhon309 | 0:666850d06c9f | 32 | * #include "mbed.h" |
jhon309 | 0:666850d06c9f | 33 | * |
jhon309 | 0:666850d06c9f | 34 | * // LED1 = P1.18 LED2 = P1.20 LED3 = P1.21 LED4 = P1.23 |
jhon309 | 0:666850d06c9f | 35 | * #define LED_MASK 0x00B40000 |
jhon309 | 0:666850d06c9f | 36 | * |
jhon309 | 0:666850d06c9f | 37 | * PortOut ledport(Port1, LED_MASK); |
jhon309 | 0:666850d06c9f | 38 | * |
jhon309 | 0:666850d06c9f | 39 | * int main() { |
jhon309 | 0:666850d06c9f | 40 | * while(1) { |
jhon309 | 0:666850d06c9f | 41 | * ledport = LED_MASK; |
jhon309 | 0:666850d06c9f | 42 | * wait(1); |
jhon309 | 0:666850d06c9f | 43 | * ledport = 0; |
jhon309 | 0:666850d06c9f | 44 | * wait(1); |
jhon309 | 0:666850d06c9f | 45 | * } |
jhon309 | 0:666850d06c9f | 46 | * } |
jhon309 | 0:666850d06c9f | 47 | * @endcode |
jhon309 | 0:666850d06c9f | 48 | */ |
jhon309 | 0:666850d06c9f | 49 | class PortOut { |
jhon309 | 0:666850d06c9f | 50 | public: |
jhon309 | 0:666850d06c9f | 51 | |
jhon309 | 0:666850d06c9f | 52 | /** Create an PortOut, connected to the specified port |
jhon309 | 0:666850d06c9f | 53 | * |
jhon309 | 0:666850d06c9f | 54 | * @param port Port to connect to (Port0-Port5) |
jhon309 | 0:666850d06c9f | 55 | * @param mask A bitmask to identify which bits in the port should be included (0 - ignore) |
jhon309 | 0:666850d06c9f | 56 | */ |
jhon309 | 0:666850d06c9f | 57 | PortOut(PortName port, int mask = 0xFFFFFFFF) { |
jhon309 | 0:666850d06c9f | 58 | port_init(&_port, port, mask, PIN_OUTPUT); |
jhon309 | 0:666850d06c9f | 59 | } |
jhon309 | 0:666850d06c9f | 60 | |
jhon309 | 0:666850d06c9f | 61 | /** Write the value to the output port |
jhon309 | 0:666850d06c9f | 62 | * |
jhon309 | 0:666850d06c9f | 63 | * @param value An integer specifying a bit to write for every corresponding PortOut pin |
jhon309 | 0:666850d06c9f | 64 | */ |
jhon309 | 0:666850d06c9f | 65 | void write(int value) { |
jhon309 | 0:666850d06c9f | 66 | port_write(&_port, value); |
jhon309 | 0:666850d06c9f | 67 | } |
jhon309 | 0:666850d06c9f | 68 | |
jhon309 | 0:666850d06c9f | 69 | /** Read the value currently output on the port |
jhon309 | 0:666850d06c9f | 70 | * |
jhon309 | 0:666850d06c9f | 71 | * @returns |
jhon309 | 0:666850d06c9f | 72 | * An integer with each bit corresponding to associated PortOut pin setting |
jhon309 | 0:666850d06c9f | 73 | */ |
jhon309 | 0:666850d06c9f | 74 | int read() { |
jhon309 | 0:666850d06c9f | 75 | return port_read(&_port); |
jhon309 | 0:666850d06c9f | 76 | } |
jhon309 | 0:666850d06c9f | 77 | |
jhon309 | 0:666850d06c9f | 78 | /** A shorthand for write() |
jhon309 | 0:666850d06c9f | 79 | */ |
jhon309 | 0:666850d06c9f | 80 | PortOut& operator= (int value) { |
jhon309 | 0:666850d06c9f | 81 | write(value); |
jhon309 | 0:666850d06c9f | 82 | return *this; |
jhon309 | 0:666850d06c9f | 83 | } |
jhon309 | 0:666850d06c9f | 84 | |
jhon309 | 0:666850d06c9f | 85 | PortOut& operator= (PortOut& rhs) { |
jhon309 | 0:666850d06c9f | 86 | write(rhs.read()); |
jhon309 | 0:666850d06c9f | 87 | return *this; |
jhon309 | 0:666850d06c9f | 88 | } |
jhon309 | 0:666850d06c9f | 89 | |
jhon309 | 0:666850d06c9f | 90 | /** A shorthand for read() |
jhon309 | 0:666850d06c9f | 91 | */ |
jhon309 | 0:666850d06c9f | 92 | operator int() { |
jhon309 | 0:666850d06c9f | 93 | return read(); |
jhon309 | 0:666850d06c9f | 94 | } |
jhon309 | 0:666850d06c9f | 95 | |
jhon309 | 0:666850d06c9f | 96 | private: |
jhon309 | 0:666850d06c9f | 97 | port_t _port; |
jhon309 | 0:666850d06c9f | 98 | }; |
jhon309 | 0:666850d06c9f | 99 | |
jhon309 | 0:666850d06c9f | 100 | } // namespace mbed |
jhon309 | 0:666850d06c9f | 101 | |
jhon309 | 0:666850d06c9f | 102 | #endif |
jhon309 | 0:666850d06c9f | 103 | |
jhon309 | 0:666850d06c9f | 104 | #endif |