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Dependents: hello SerialTestv11 SerialTestv12 Sierpinski ... more
BusOut.h@122:f9eeca106725, 2016-07-07 (annotated)
- Committer:
- Kojto
- Date:
- Thu Jul 07 14:34:11 2016 +0100
- Revision:
- 122:f9eeca106725
- Parent:
- 93:e188a91d3eaa
- Child:
- 123:b0220dba8be7
Release 122 of the mbed library
Changes:
- new targets - Nucleo L432KC, Beetle, Nucleo F446ZE, Nucleo L011K4
- Thread safety addition - mbed API should contain a statement about thread safety
- critical section API addition
- CAS API (core_util_atomic_incr/decr)
- DEVICE_ are generated from targets.json file, device.h deprecated
- Callback replaces FunctionPointer to provide std like interface
- mbed HAL API docs improvements
- toolchain - prexif attributes with MBED_
- add new attributes - packed, weak, forcedinline, align
- target.json - contains targets definitions
- ST - L1XX - Cube update to 1.5
- SPI clock selection fix (clock from APB domain)
- F7 - Cube update v1.4.0
- L0 - baudrate init fix
- L1 - Cube update v1.5
- F3 - baudrate init fix, 3 targets CAN support
- F4 - Cube update v1.12.0, 3 targets CAN support
- L4XX - Cube update v1.5.1
- F0 - update Cube to v1.5.0
- L4 - 2 targets (L476RG/VG) CAN support
- NXP - pwm clock fix for KSDK2 MCU
- LPC2368 - remove ARM toolchain support - due to regression
- KSDK2 - fix SPI , I2C address and repeat start
- Silabs - some fixes backported from mbed 3
- Renesas - RZ_A1H - SystemCoreClockUpdate addition
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_BUSOUT_H |
bogdanm | 65:5798e58a58b1 | 17 | #define MBED_BUSOUT_H |
bogdanm | 65:5798e58a58b1 | 18 | |
bogdanm | 65:5798e58a58b1 | 19 | #include "DigitalOut.h" |
bogdanm | 65:5798e58a58b1 | 20 | |
bogdanm | 65:5798e58a58b1 | 21 | namespace mbed { |
bogdanm | 65:5798e58a58b1 | 22 | |
bogdanm | 65:5798e58a58b1 | 23 | /** A digital output bus, used for setting the state of a collection of pins |
bogdanm | 65:5798e58a58b1 | 24 | */ |
bogdanm | 65:5798e58a58b1 | 25 | class BusOut { |
bogdanm | 65:5798e58a58b1 | 26 | |
bogdanm | 65:5798e58a58b1 | 27 | public: |
bogdanm | 65:5798e58a58b1 | 28 | |
bogdanm | 65:5798e58a58b1 | 29 | /** Create an BusOut, connected to the specified pins |
bogdanm | 65:5798e58a58b1 | 30 | * |
bogdanm | 65:5798e58a58b1 | 31 | * @param p<n> DigitalOut pin to connect to bus bit <n> (p5-p30, NC) |
bogdanm | 65:5798e58a58b1 | 32 | * |
Kojto | 122:f9eeca106725 | 33 | * @Note Synchronization level: Thread safe |
Kojto | 122:f9eeca106725 | 34 | * |
bogdanm | 65:5798e58a58b1 | 35 | * @note |
bogdanm | 65:5798e58a58b1 | 36 | * It is only required to specify as many pin variables as is required |
bogdanm | 65:5798e58a58b1 | 37 | * for the bus; the rest will default to NC (not connected) |
bogdanm | 65:5798e58a58b1 | 38 | */ |
bogdanm | 65:5798e58a58b1 | 39 | BusOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC, |
bogdanm | 65:5798e58a58b1 | 40 | PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC, |
bogdanm | 65:5798e58a58b1 | 41 | PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC, |
bogdanm | 65:5798e58a58b1 | 42 | PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC); |
bogdanm | 65:5798e58a58b1 | 43 | |
bogdanm | 65:5798e58a58b1 | 44 | BusOut(PinName pins[16]); |
bogdanm | 65:5798e58a58b1 | 45 | |
bogdanm | 65:5798e58a58b1 | 46 | virtual ~BusOut(); |
bogdanm | 65:5798e58a58b1 | 47 | |
bogdanm | 65:5798e58a58b1 | 48 | /** Write the value to the output bus |
bogdanm | 65:5798e58a58b1 | 49 | * |
bogdanm | 65:5798e58a58b1 | 50 | * @param value An integer specifying a bit to write for every corresponding DigitalOut pin |
bogdanm | 65:5798e58a58b1 | 51 | */ |
bogdanm | 65:5798e58a58b1 | 52 | void write(int value); |
bogdanm | 65:5798e58a58b1 | 53 | |
bogdanm | 65:5798e58a58b1 | 54 | /** Read the value currently output on the bus |
bogdanm | 65:5798e58a58b1 | 55 | * |
bogdanm | 65:5798e58a58b1 | 56 | * @returns |
bogdanm | 65:5798e58a58b1 | 57 | * An integer with each bit corresponding to associated DigitalOut pin setting |
bogdanm | 65:5798e58a58b1 | 58 | */ |
bogdanm | 65:5798e58a58b1 | 59 | int read(); |
bogdanm | 65:5798e58a58b1 | 60 | |
Kojto | 93:e188a91d3eaa | 61 | /** Binary mask of bus pins connected to actual pins (not NC pins) |
Kojto | 93:e188a91d3eaa | 62 | * If bus pin is in NC state make corresponding bit will be cleared (set to 0), else bit will be set to 1 |
Kojto | 93:e188a91d3eaa | 63 | * |
Kojto | 93:e188a91d3eaa | 64 | * @returns |
Kojto | 93:e188a91d3eaa | 65 | * Binary mask of connected pins |
Kojto | 93:e188a91d3eaa | 66 | */ |
Kojto | 93:e188a91d3eaa | 67 | int mask() { |
Kojto | 122:f9eeca106725 | 68 | // No lock needed since _nc_mask is not modified outside the constructor |
Kojto | 93:e188a91d3eaa | 69 | return _nc_mask; |
Kojto | 93:e188a91d3eaa | 70 | } |
Kojto | 93:e188a91d3eaa | 71 | |
bogdanm | 65:5798e58a58b1 | 72 | #ifdef MBED_OPERATORS |
bogdanm | 65:5798e58a58b1 | 73 | /** A shorthand for write() |
bogdanm | 65:5798e58a58b1 | 74 | */ |
bogdanm | 65:5798e58a58b1 | 75 | BusOut& operator= (int v); |
bogdanm | 65:5798e58a58b1 | 76 | BusOut& operator= (BusOut& rhs); |
bogdanm | 65:5798e58a58b1 | 77 | |
Kojto | 93:e188a91d3eaa | 78 | /** Access to particular bit in random-iterator fashion |
Kojto | 93:e188a91d3eaa | 79 | */ |
Kojto | 93:e188a91d3eaa | 80 | DigitalOut& operator[] (int index); |
Kojto | 93:e188a91d3eaa | 81 | |
bogdanm | 65:5798e58a58b1 | 82 | /** A shorthand for read() |
bogdanm | 65:5798e58a58b1 | 83 | */ |
bogdanm | 65:5798e58a58b1 | 84 | operator int(); |
bogdanm | 65:5798e58a58b1 | 85 | #endif |
bogdanm | 65:5798e58a58b1 | 86 | |
bogdanm | 65:5798e58a58b1 | 87 | protected: |
Kojto | 122:f9eeca106725 | 88 | virtual void lock(); |
Kojto | 122:f9eeca106725 | 89 | virtual void unlock(); |
bogdanm | 65:5798e58a58b1 | 90 | DigitalOut* _pin[16]; |
bogdanm | 85:024bf7f99721 | 91 | |
Kojto | 93:e188a91d3eaa | 92 | /** Mask of bus's NC pins |
Kojto | 93:e188a91d3eaa | 93 | * If bit[n] is set to 1 - pin is connected |
Kojto | 93:e188a91d3eaa | 94 | * if bit[n] is cleared - pin is not connected (NC) |
Kojto | 93:e188a91d3eaa | 95 | */ |
Kojto | 93:e188a91d3eaa | 96 | int _nc_mask; |
Kojto | 93:e188a91d3eaa | 97 | |
Kojto | 122:f9eeca106725 | 98 | PlatformMutex _mutex; |
Kojto | 122:f9eeca106725 | 99 | |
bogdanm | 85:024bf7f99721 | 100 | /* disallow copy constructor and assignment operators */ |
bogdanm | 85:024bf7f99721 | 101 | private: |
bogdanm | 85:024bf7f99721 | 102 | BusOut(const BusOut&); |
bogdanm | 85:024bf7f99721 | 103 | BusOut & operator = (const BusOut&); |
bogdanm | 65:5798e58a58b1 | 104 | }; |
bogdanm | 65:5798e58a58b1 | 105 | |
bogdanm | 65:5798e58a58b1 | 106 | } // namespace mbed |
bogdanm | 65:5798e58a58b1 | 107 | |
bogdanm | 65:5798e58a58b1 | 108 | #endif |