The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
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mbed 2
This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.
drivers/BusIn.h@128:9bcdf88f62b0, 2016-10-27 (annotated)
- Committer:
- <>
- Date:
- Thu Oct 27 16:45:56 2016 +0100
- Revision:
- 128:9bcdf88f62b0
- Child:
- 145:64910690c574
Release 128 of the mbed library
Ports for Upcoming Targets
Fixes and Changes
2966: Add kw24 support https://github.com/ARMmbed/mbed-os/pull/2966
3068: MultiTech mDot - clean up PeripheralPins.c and add new pin names https://github.com/ARMmbed/mbed-os/pull/3068
3089: Kinetis HAL: Remove clock initialization code from serial and ticker https://github.com/ARMmbed/mbed-os/pull/3089
2943: [NRF5] NVIC_SetVector functionality https://github.com/ARMmbed/mbed-os/pull/2943
2938: InterruptIn changes in NCS36510 HAL. https://github.com/ARMmbed/mbed-os/pull/2938
3108: Fix sleep function for NRF52. https://github.com/ARMmbed/mbed-os/pull/3108
3076: STM32F1: Correct timer master value reading https://github.com/ARMmbed/mbed-os/pull/3076
3085: Add LOWPOWERTIMER capability for NUCLEO_F303ZE https://github.com/ARMmbed/mbed-os/pull/3085
3046: [BEETLE] Update BLE stack on Beetle board https://github.com/ARMmbed/mbed-os/pull/3046
3122: [Silicon Labs] Update of Silicon Labs HAL https://github.com/ARMmbed/mbed-os/pull/3122
3022: OnSemi RAM usage fix https://github.com/ARMmbed/mbed-os/pull/3022
3121: STM32F3: Correct UART4 and UART5 defines when using DEVICE_SERIAL_ASYNCH https://github.com/ARMmbed/mbed-os/pull/3121
3142: Targets- NUMAKER_PFM_NUC47216 remove mbed 2 https://github.com/ARMmbed/mbed-os/pull/3142
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 128:9bcdf88f62b0 | 1 | /* mbed Microcontroller Library |
<> | 128:9bcdf88f62b0 | 2 | * Copyright (c) 2006-2013 ARM Limited |
<> | 128:9bcdf88f62b0 | 3 | * |
<> | 128:9bcdf88f62b0 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
<> | 128:9bcdf88f62b0 | 5 | * you may not use this file except in compliance with the License. |
<> | 128:9bcdf88f62b0 | 6 | * You may obtain a copy of the License at |
<> | 128:9bcdf88f62b0 | 7 | * |
<> | 128:9bcdf88f62b0 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
<> | 128:9bcdf88f62b0 | 9 | * |
<> | 128:9bcdf88f62b0 | 10 | * Unless required by applicable law or agreed to in writing, software |
<> | 128:9bcdf88f62b0 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
<> | 128:9bcdf88f62b0 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
<> | 128:9bcdf88f62b0 | 13 | * See the License for the specific language governing permissions and |
<> | 128:9bcdf88f62b0 | 14 | * limitations under the License. |
<> | 128:9bcdf88f62b0 | 15 | */ |
<> | 128:9bcdf88f62b0 | 16 | #ifndef MBED_BUSIN_H |
<> | 128:9bcdf88f62b0 | 17 | #define MBED_BUSIN_H |
<> | 128:9bcdf88f62b0 | 18 | |
<> | 128:9bcdf88f62b0 | 19 | #include "platform/platform.h" |
<> | 128:9bcdf88f62b0 | 20 | #include "drivers/DigitalIn.h" |
<> | 128:9bcdf88f62b0 | 21 | #include "platform/PlatformMutex.h" |
<> | 128:9bcdf88f62b0 | 22 | |
<> | 128:9bcdf88f62b0 | 23 | namespace mbed { |
<> | 128:9bcdf88f62b0 | 24 | /** \addtogroup drivers */ |
<> | 128:9bcdf88f62b0 | 25 | /** @{*/ |
<> | 128:9bcdf88f62b0 | 26 | |
<> | 128:9bcdf88f62b0 | 27 | /** A digital input bus, used for reading the state of a collection of pins |
<> | 128:9bcdf88f62b0 | 28 | * |
<> | 128:9bcdf88f62b0 | 29 | * @Note Synchronization level: Thread safe |
<> | 128:9bcdf88f62b0 | 30 | */ |
<> | 128:9bcdf88f62b0 | 31 | class BusIn { |
<> | 128:9bcdf88f62b0 | 32 | |
<> | 128:9bcdf88f62b0 | 33 | public: |
<> | 128:9bcdf88f62b0 | 34 | /* Group: Configuration Methods */ |
<> | 128:9bcdf88f62b0 | 35 | |
<> | 128:9bcdf88f62b0 | 36 | /** Create an BusIn, connected to the specified pins |
<> | 128:9bcdf88f62b0 | 37 | * |
<> | 128:9bcdf88f62b0 | 38 | * @param <n> DigitalIn pin to connect to bus bit <n> (p5-p30, NC) |
<> | 128:9bcdf88f62b0 | 39 | * |
<> | 128:9bcdf88f62b0 | 40 | * @note |
<> | 128:9bcdf88f62b0 | 41 | * It is only required to specify as many pin variables as is required |
<> | 128:9bcdf88f62b0 | 42 | * for the bus; the rest will default to NC (not connected) |
<> | 128:9bcdf88f62b0 | 43 | */ |
<> | 128:9bcdf88f62b0 | 44 | BusIn(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC, |
<> | 128:9bcdf88f62b0 | 45 | PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC, |
<> | 128:9bcdf88f62b0 | 46 | PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC, |
<> | 128:9bcdf88f62b0 | 47 | PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC); |
<> | 128:9bcdf88f62b0 | 48 | |
<> | 128:9bcdf88f62b0 | 49 | BusIn(PinName pins[16]); |
<> | 128:9bcdf88f62b0 | 50 | |
<> | 128:9bcdf88f62b0 | 51 | virtual ~BusIn(); |
<> | 128:9bcdf88f62b0 | 52 | |
<> | 128:9bcdf88f62b0 | 53 | /** Read the value of the input bus |
<> | 128:9bcdf88f62b0 | 54 | * |
<> | 128:9bcdf88f62b0 | 55 | * @returns |
<> | 128:9bcdf88f62b0 | 56 | * An integer with each bit corresponding to the value read from the associated DigitalIn pin |
<> | 128:9bcdf88f62b0 | 57 | */ |
<> | 128:9bcdf88f62b0 | 58 | int read(); |
<> | 128:9bcdf88f62b0 | 59 | |
<> | 128:9bcdf88f62b0 | 60 | /** Set the input pin mode |
<> | 128:9bcdf88f62b0 | 61 | * |
<> | 128:9bcdf88f62b0 | 62 | * @param mode PullUp, PullDown, PullNone |
<> | 128:9bcdf88f62b0 | 63 | */ |
<> | 128:9bcdf88f62b0 | 64 | void mode(PinMode pull); |
<> | 128:9bcdf88f62b0 | 65 | |
<> | 128:9bcdf88f62b0 | 66 | /** Binary mask of bus pins connected to actual pins (not NC pins) |
<> | 128:9bcdf88f62b0 | 67 | * If bus pin is in NC state make corresponding bit will be cleared (set to 0), else bit will be set to 1 |
<> | 128:9bcdf88f62b0 | 68 | * |
<> | 128:9bcdf88f62b0 | 69 | * @returns |
<> | 128:9bcdf88f62b0 | 70 | * Binary mask of connected pins |
<> | 128:9bcdf88f62b0 | 71 | */ |
<> | 128:9bcdf88f62b0 | 72 | int mask() { |
<> | 128:9bcdf88f62b0 | 73 | // No lock needed since _nc_mask is not modified outside the constructor |
<> | 128:9bcdf88f62b0 | 74 | return _nc_mask; |
<> | 128:9bcdf88f62b0 | 75 | } |
<> | 128:9bcdf88f62b0 | 76 | |
<> | 128:9bcdf88f62b0 | 77 | /** A shorthand for read() |
<> | 128:9bcdf88f62b0 | 78 | */ |
<> | 128:9bcdf88f62b0 | 79 | operator int(); |
<> | 128:9bcdf88f62b0 | 80 | |
<> | 128:9bcdf88f62b0 | 81 | /** Access to particular bit in random-iterator fashion |
<> | 128:9bcdf88f62b0 | 82 | */ |
<> | 128:9bcdf88f62b0 | 83 | DigitalIn & operator[] (int index); |
<> | 128:9bcdf88f62b0 | 84 | |
<> | 128:9bcdf88f62b0 | 85 | protected: |
<> | 128:9bcdf88f62b0 | 86 | DigitalIn* _pin[16]; |
<> | 128:9bcdf88f62b0 | 87 | |
<> | 128:9bcdf88f62b0 | 88 | /** Mask of bus's NC pins |
<> | 128:9bcdf88f62b0 | 89 | * If bit[n] is set to 1 - pin is connected |
<> | 128:9bcdf88f62b0 | 90 | * if bit[n] is cleared - pin is not connected (NC) |
<> | 128:9bcdf88f62b0 | 91 | */ |
<> | 128:9bcdf88f62b0 | 92 | int _nc_mask; |
<> | 128:9bcdf88f62b0 | 93 | |
<> | 128:9bcdf88f62b0 | 94 | PlatformMutex _mutex; |
<> | 128:9bcdf88f62b0 | 95 | |
<> | 128:9bcdf88f62b0 | 96 | /* disallow copy constructor and assignment operators */ |
<> | 128:9bcdf88f62b0 | 97 | private: |
<> | 128:9bcdf88f62b0 | 98 | virtual void lock(); |
<> | 128:9bcdf88f62b0 | 99 | virtual void unlock(); |
<> | 128:9bcdf88f62b0 | 100 | BusIn(const BusIn&); |
<> | 128:9bcdf88f62b0 | 101 | BusIn & operator = (const BusIn&); |
<> | 128:9bcdf88f62b0 | 102 | }; |
<> | 128:9bcdf88f62b0 | 103 | |
<> | 128:9bcdf88f62b0 | 104 | } // namespace mbed |
<> | 128:9bcdf88f62b0 | 105 | |
<> | 128:9bcdf88f62b0 | 106 | #endif |
<> | 128:9bcdf88f62b0 | 107 | |
<> | 128:9bcdf88f62b0 | 108 | /** @}*/ |