This repo contains the libraries of Mbed for LPC1549 with following changes: - IAP commands. - EEPROM write and read. - UART write and read (public) - CAN can_s -> LPC_C_CAN0_Type *can
mbed/BusInOut.h@0:820a69dfd200, 2015-04-14 (annotated)
- Committer:
- gmatarrubia
- Date:
- Tue Apr 14 15:00:13 2015 +0200
- Revision:
- 0:820a69dfd200
Initial repo. IAP commands, EEPROM write/read, UART write/read, CAN
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
gmatarrubia |
0:820a69dfd200 | 1 | /* mbed Microcontroller Library |
gmatarrubia |
0:820a69dfd200 | 2 | * Copyright (c) 2006-2013 ARM Limited |
gmatarrubia |
0:820a69dfd200 | 3 | * |
gmatarrubia |
0:820a69dfd200 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
gmatarrubia |
0:820a69dfd200 | 5 | * you may not use this file except in compliance with the License. |
gmatarrubia |
0:820a69dfd200 | 6 | * You may obtain a copy of the License at |
gmatarrubia |
0:820a69dfd200 | 7 | * |
gmatarrubia |
0:820a69dfd200 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
gmatarrubia |
0:820a69dfd200 | 9 | * |
gmatarrubia |
0:820a69dfd200 | 10 | * Unless required by applicable law or agreed to in writing, software |
gmatarrubia |
0:820a69dfd200 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
gmatarrubia |
0:820a69dfd200 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
gmatarrubia |
0:820a69dfd200 | 13 | * See the License for the specific language governing permissions and |
gmatarrubia |
0:820a69dfd200 | 14 | * limitations under the License. |
gmatarrubia |
0:820a69dfd200 | 15 | */ |
gmatarrubia |
0:820a69dfd200 | 16 | #ifndef MBED_BUSINOUT_H |
gmatarrubia |
0:820a69dfd200 | 17 | #define MBED_BUSINOUT_H |
gmatarrubia |
0:820a69dfd200 | 18 | |
gmatarrubia |
0:820a69dfd200 | 19 | #include "DigitalInOut.h" |
gmatarrubia |
0:820a69dfd200 | 20 | |
gmatarrubia |
0:820a69dfd200 | 21 | namespace mbed { |
gmatarrubia |
0:820a69dfd200 | 22 | |
gmatarrubia |
0:820a69dfd200 | 23 | /** A digital input output bus, used for setting the state of a collection of pins |
gmatarrubia |
0:820a69dfd200 | 24 | */ |
gmatarrubia |
0:820a69dfd200 | 25 | class BusInOut { |
gmatarrubia |
0:820a69dfd200 | 26 | |
gmatarrubia |
0:820a69dfd200 | 27 | public: |
gmatarrubia |
0:820a69dfd200 | 28 | |
gmatarrubia |
0:820a69dfd200 | 29 | /** Create an BusInOut, connected to the specified pins |
gmatarrubia |
0:820a69dfd200 | 30 | * |
gmatarrubia |
0:820a69dfd200 | 31 | * @param p<n> DigitalInOut pin to connect to bus bit p<n> (p5-p30, NC) |
gmatarrubia |
0:820a69dfd200 | 32 | * |
gmatarrubia |
0:820a69dfd200 | 33 | * @note |
gmatarrubia |
0:820a69dfd200 | 34 | * It is only required to specify as many pin variables as is required |
gmatarrubia |
0:820a69dfd200 | 35 | * for the bus; the rest will default to NC (not connected) |
gmatarrubia |
0:820a69dfd200 | 36 | */ |
gmatarrubia |
0:820a69dfd200 | 37 | BusInOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC, |
gmatarrubia |
0:820a69dfd200 | 38 | PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC, |
gmatarrubia |
0:820a69dfd200 | 39 | PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC, |
gmatarrubia |
0:820a69dfd200 | 40 | PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC); |
gmatarrubia |
0:820a69dfd200 | 41 | |
gmatarrubia |
0:820a69dfd200 | 42 | BusInOut(PinName pins[16]); |
gmatarrubia |
0:820a69dfd200 | 43 | |
gmatarrubia |
0:820a69dfd200 | 44 | virtual ~BusInOut(); |
gmatarrubia |
0:820a69dfd200 | 45 | |
gmatarrubia |
0:820a69dfd200 | 46 | /* Group: Access Methods */ |
gmatarrubia |
0:820a69dfd200 | 47 | |
gmatarrubia |
0:820a69dfd200 | 48 | /** Write the value to the output bus |
gmatarrubia |
0:820a69dfd200 | 49 | * |
gmatarrubia |
0:820a69dfd200 | 50 | * @param value An integer specifying a bit to write for every corresponding DigitalInOut pin |
gmatarrubia |
0:820a69dfd200 | 51 | */ |
gmatarrubia |
0:820a69dfd200 | 52 | void write(int value); |
gmatarrubia |
0:820a69dfd200 | 53 | |
gmatarrubia |
0:820a69dfd200 | 54 | /** Read the value currently output on the bus |
gmatarrubia |
0:820a69dfd200 | 55 | * |
gmatarrubia |
0:820a69dfd200 | 56 | * @returns |
gmatarrubia |
0:820a69dfd200 | 57 | * An integer with each bit corresponding to associated DigitalInOut pin setting |
gmatarrubia |
0:820a69dfd200 | 58 | */ |
gmatarrubia |
0:820a69dfd200 | 59 | int read(); |
gmatarrubia |
0:820a69dfd200 | 60 | |
gmatarrubia |
0:820a69dfd200 | 61 | /** Set as an output |
gmatarrubia |
0:820a69dfd200 | 62 | */ |
gmatarrubia |
0:820a69dfd200 | 63 | void output(); |
gmatarrubia |
0:820a69dfd200 | 64 | |
gmatarrubia |
0:820a69dfd200 | 65 | /** Set as an input |
gmatarrubia |
0:820a69dfd200 | 66 | */ |
gmatarrubia |
0:820a69dfd200 | 67 | void input(); |
gmatarrubia |
0:820a69dfd200 | 68 | |
gmatarrubia |
0:820a69dfd200 | 69 | /** Set the input pin mode |
gmatarrubia |
0:820a69dfd200 | 70 | * |
gmatarrubia |
0:820a69dfd200 | 71 | * @param mode PullUp, PullDown, PullNone |
gmatarrubia |
0:820a69dfd200 | 72 | */ |
gmatarrubia |
0:820a69dfd200 | 73 | void mode(PinMode pull); |
gmatarrubia |
0:820a69dfd200 | 74 | |
gmatarrubia |
0:820a69dfd200 | 75 | /** Binary mask of bus pins connected to actual pins (not NC pins) |
gmatarrubia |
0:820a69dfd200 | 76 | * If bus pin is in NC state make corresponding bit will be cleared (set to 0), else bit will be set to 1 |
gmatarrubia |
0:820a69dfd200 | 77 | * |
gmatarrubia |
0:820a69dfd200 | 78 | * @returns |
gmatarrubia |
0:820a69dfd200 | 79 | * Binary mask of connected pins |
gmatarrubia |
0:820a69dfd200 | 80 | */ |
gmatarrubia |
0:820a69dfd200 | 81 | int mask() { |
gmatarrubia |
0:820a69dfd200 | 82 | return _nc_mask; |
gmatarrubia |
0:820a69dfd200 | 83 | } |
gmatarrubia |
0:820a69dfd200 | 84 | |
gmatarrubia |
0:820a69dfd200 | 85 | #ifdef MBED_OPERATORS |
gmatarrubia |
0:820a69dfd200 | 86 | /** A shorthand for write() |
gmatarrubia |
0:820a69dfd200 | 87 | */ |
gmatarrubia |
0:820a69dfd200 | 88 | BusInOut& operator= (int v); |
gmatarrubia |
0:820a69dfd200 | 89 | BusInOut& operator= (BusInOut& rhs); |
gmatarrubia |
0:820a69dfd200 | 90 | |
gmatarrubia |
0:820a69dfd200 | 91 | /** Access to particular bit in random-iterator fashion |
gmatarrubia |
0:820a69dfd200 | 92 | */ |
gmatarrubia |
0:820a69dfd200 | 93 | DigitalInOut& operator[] (int index); |
gmatarrubia |
0:820a69dfd200 | 94 | |
gmatarrubia |
0:820a69dfd200 | 95 | /** A shorthand for read() |
gmatarrubia |
0:820a69dfd200 | 96 | */ |
gmatarrubia |
0:820a69dfd200 | 97 | operator int(); |
gmatarrubia |
0:820a69dfd200 | 98 | #endif |
gmatarrubia |
0:820a69dfd200 | 99 | |
gmatarrubia |
0:820a69dfd200 | 100 | protected: |
gmatarrubia |
0:820a69dfd200 | 101 | DigitalInOut* _pin[16]; |
gmatarrubia |
0:820a69dfd200 | 102 | |
gmatarrubia |
0:820a69dfd200 | 103 | /** Mask of bus's NC pins |
gmatarrubia |
0:820a69dfd200 | 104 | * If bit[n] is set to 1 - pin is connected |
gmatarrubia |
0:820a69dfd200 | 105 | * if bit[n] is cleared - pin is not connected (NC) |
gmatarrubia |
0:820a69dfd200 | 106 | */ |
gmatarrubia |
0:820a69dfd200 | 107 | int _nc_mask; |
gmatarrubia |
0:820a69dfd200 | 108 | |
gmatarrubia |
0:820a69dfd200 | 109 | /* disallow copy constructor and assignment operators */ |
gmatarrubia |
0:820a69dfd200 | 110 | private: |
gmatarrubia |
0:820a69dfd200 | 111 | BusInOut(const BusInOut&); |
gmatarrubia |
0:820a69dfd200 | 112 | BusInOut & operator = (const BusInOut&); |
gmatarrubia |
0:820a69dfd200 | 113 | }; |
gmatarrubia |
0:820a69dfd200 | 114 | |
gmatarrubia |
0:820a69dfd200 | 115 | } // namespace mbed |
gmatarrubia |
0:820a69dfd200 | 116 | |
gmatarrubia |
0:820a69dfd200 | 117 | #endif |