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/PortIn.h@140:97feb9bacc10, 2017-04-12 (annotated)
- Committer:
- <>
- Date:
- Wed Apr 12 16:07:08 2017 +0100
- Revision:
- 140:97feb9bacc10
- Parent:
- 138:093f2bd7b9eb
- Child:
- 145:64910690c574
Release 140 of the mbed library
Ports for Upcoming Targets
3841: Add nRf52840 target https://github.com/ARMmbed/mbed-os/pull/3841
3992: Introducing UBLOX_C030 platform. https://github.com/ARMmbed/mbed-os/pull/3992
Fixes and Changes
3951: [NUCLEO_F303ZE] Correct ARDUINO pin https://github.com/ARMmbed/mbed-os/pull/3951
4021: Fixing a macro to detect when RTOS was in use for the NRF52840_DK https://github.com/ARMmbed/mbed-os/pull/4021
3979: KW24D: Add missing SPI defines and Arduino connector definitions https://github.com/ARMmbed/mbed-os/pull/3979
3990: UBLOX_C027: construct a ticker-based wait, rather than calling wait_ms(), in the https://github.com/ARMmbed/mbed-os/pull/3990
4003: Fixed OBOE in async serial tx for NRF52 target, fixes #4002 https://github.com/ARMmbed/mbed-os/pull/4003
4012: STM32: Correct I2C master error handling https://github.com/ARMmbed/mbed-os/pull/4012
4020: NUCLEO_L011K4 remove unsupported tool chain files https://github.com/ARMmbed/mbed-os/pull/4020
4065: K66F: Move bss section to m_data_2 Section https://github.com/ARMmbed/mbed-os/pull/4065
4014: Issue 3763: Reduce heap allocation in the GCC linker file https://github.com/ARMmbed/mbed-os/pull/4014
4030: [STM32L0] reduce IAR heap and stack size for small targets https://github.com/ARMmbed/mbed-os/pull/4030
4109: NUCLEO_L476RG : minor serial pin update https://github.com/ARMmbed/mbed-os/pull/4109
3982: Ticker - kl25z bugfix for handling events in the past https://github.com/ARMmbed/mbed-os/pull/3982
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_PORTIN_H |
<> | 128:9bcdf88f62b0 | 17 | #define MBED_PORTIN_H |
<> | 128:9bcdf88f62b0 | 18 | |
<> | 128:9bcdf88f62b0 | 19 | #include "platform/platform.h" |
<> | 128:9bcdf88f62b0 | 20 | |
<> | 128:9bcdf88f62b0 | 21 | #if DEVICE_PORTIN |
<> | 128:9bcdf88f62b0 | 22 | |
<> | 128:9bcdf88f62b0 | 23 | #include "hal/port_api.h" |
<> | 138:093f2bd7b9eb | 24 | #include "platform/mbed_critical.h" |
<> | 128:9bcdf88f62b0 | 25 | |
<> | 128:9bcdf88f62b0 | 26 | namespace mbed { |
<> | 128:9bcdf88f62b0 | 27 | /** \addtogroup drivers */ |
<> | 128:9bcdf88f62b0 | 28 | /** @{*/ |
<> | 128:9bcdf88f62b0 | 29 | |
<> | 128:9bcdf88f62b0 | 30 | /** A multiple pin digital input |
<> | 128:9bcdf88f62b0 | 31 | * |
<> | 128:9bcdf88f62b0 | 32 | * @Note Synchronization level: Interrupt safe |
<> | 128:9bcdf88f62b0 | 33 | * |
<> | 128:9bcdf88f62b0 | 34 | * Example: |
<> | 128:9bcdf88f62b0 | 35 | * @code |
<> | 128:9bcdf88f62b0 | 36 | * // Switch on an LED if any of mbed pins 21-26 is high |
<> | 128:9bcdf88f62b0 | 37 | * |
<> | 128:9bcdf88f62b0 | 38 | * #include "mbed.h" |
<> | 128:9bcdf88f62b0 | 39 | * |
<> | 128:9bcdf88f62b0 | 40 | * PortIn p(Port2, 0x0000003F); // p21-p26 |
<> | 128:9bcdf88f62b0 | 41 | * DigitalOut ind(LED4); |
<> | 128:9bcdf88f62b0 | 42 | * |
<> | 128:9bcdf88f62b0 | 43 | * int main() { |
<> | 128:9bcdf88f62b0 | 44 | * while(1) { |
<> | 128:9bcdf88f62b0 | 45 | * int pins = p.read(); |
<> | 128:9bcdf88f62b0 | 46 | * if(pins) { |
<> | 128:9bcdf88f62b0 | 47 | * ind = 1; |
<> | 128:9bcdf88f62b0 | 48 | * } else { |
<> | 128:9bcdf88f62b0 | 49 | * ind = 0; |
<> | 128:9bcdf88f62b0 | 50 | * } |
<> | 128:9bcdf88f62b0 | 51 | * } |
<> | 128:9bcdf88f62b0 | 52 | * } |
<> | 128:9bcdf88f62b0 | 53 | * @endcode |
<> | 128:9bcdf88f62b0 | 54 | */ |
<> | 128:9bcdf88f62b0 | 55 | class PortIn { |
<> | 128:9bcdf88f62b0 | 56 | public: |
<> | 128:9bcdf88f62b0 | 57 | |
<> | 128:9bcdf88f62b0 | 58 | /** Create an PortIn, connected to the specified port |
<> | 128:9bcdf88f62b0 | 59 | * |
<> | 128:9bcdf88f62b0 | 60 | * @param port Port to connect to (Port0-Port5) |
<> | 128:9bcdf88f62b0 | 61 | * @param mask A bitmask to identify which bits in the port should be included (0 - ignore) |
<> | 128:9bcdf88f62b0 | 62 | */ |
<> | 128:9bcdf88f62b0 | 63 | PortIn(PortName port, int mask = 0xFFFFFFFF) { |
<> | 128:9bcdf88f62b0 | 64 | core_util_critical_section_enter(); |
<> | 128:9bcdf88f62b0 | 65 | port_init(&_port, port, mask, PIN_INPUT); |
<> | 128:9bcdf88f62b0 | 66 | core_util_critical_section_exit(); |
<> | 128:9bcdf88f62b0 | 67 | } |
<> | 128:9bcdf88f62b0 | 68 | |
<> | 128:9bcdf88f62b0 | 69 | /** Read the value currently output on the port |
<> | 128:9bcdf88f62b0 | 70 | * |
<> | 128:9bcdf88f62b0 | 71 | * @returns |
<> | 128:9bcdf88f62b0 | 72 | * An integer with each bit corresponding to associated port pin setting |
<> | 128:9bcdf88f62b0 | 73 | */ |
<> | 128:9bcdf88f62b0 | 74 | int read() { |
<> | 128:9bcdf88f62b0 | 75 | return port_read(&_port); |
<> | 128:9bcdf88f62b0 | 76 | } |
<> | 128:9bcdf88f62b0 | 77 | |
<> | 128:9bcdf88f62b0 | 78 | /** Set the input pin mode |
<> | 128:9bcdf88f62b0 | 79 | * |
<> | 128:9bcdf88f62b0 | 80 | * @param mode PullUp, PullDown, PullNone, OpenDrain |
<> | 128:9bcdf88f62b0 | 81 | */ |
<> | 128:9bcdf88f62b0 | 82 | void mode(PinMode mode) { |
<> | 128:9bcdf88f62b0 | 83 | core_util_critical_section_enter(); |
<> | 128:9bcdf88f62b0 | 84 | port_mode(&_port, mode); |
<> | 128:9bcdf88f62b0 | 85 | core_util_critical_section_exit(); |
<> | 128:9bcdf88f62b0 | 86 | } |
<> | 128:9bcdf88f62b0 | 87 | |
<> | 128:9bcdf88f62b0 | 88 | /** A shorthand for read() |
<> | 128:9bcdf88f62b0 | 89 | */ |
<> | 128:9bcdf88f62b0 | 90 | operator int() { |
<> | 128:9bcdf88f62b0 | 91 | return read(); |
<> | 128:9bcdf88f62b0 | 92 | } |
<> | 128:9bcdf88f62b0 | 93 | |
<> | 128:9bcdf88f62b0 | 94 | private: |
<> | 128:9bcdf88f62b0 | 95 | port_t _port; |
<> | 128:9bcdf88f62b0 | 96 | }; |
<> | 128:9bcdf88f62b0 | 97 | |
<> | 128:9bcdf88f62b0 | 98 | } // namespace mbed |
<> | 128:9bcdf88f62b0 | 99 | |
<> | 128:9bcdf88f62b0 | 100 | #endif |
<> | 128:9bcdf88f62b0 | 101 | |
<> | 128:9bcdf88f62b0 | 102 | #endif |
<> | 128:9bcdf88f62b0 | 103 | |
<> | 128:9bcdf88f62b0 | 104 | /** @}*/ |