Tushar Sachdeva / FRDM_K64F_LCD

A simple 128x32 graphical LCD program to quickstart with LCD on ARM mbed IoT Starter Kit. This requires mbed Applciation Shield with FRDM-K64F platform.

Dependencies:   C12832

mbed/BusIn.h@1:eb68c94a8ee5, 2015-04-12 (annotated)

Committer:
tushki7
Date:
Sun Apr 12 15:45:52 2015 +0000
Revision:
1:eb68c94a8ee5
Parent:
0:60d829a0353a 
A simple 128x32 LCD program with ARM mbed IoT Starter Kit;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tushki7 0:60d829a0353a 1 /* mbed Microcontroller Library
tushki7 0:60d829a0353a 2 * Copyright (c) 2006-2013 ARM Limited
tushki7 0:60d829a0353a 3 *
tushki7 0:60d829a0353a 4 * Licensed under the Apache License, Version 2.0 (the "License");
tushki7 0:60d829a0353a 5 * you may not use this file except in compliance with the License.
tushki7 0:60d829a0353a 6 * You may obtain a copy of the License at
tushki7 0:60d829a0353a 7 *
tushki7 0:60d829a0353a 8 * http://www.apache.org/licenses/LICENSE-2.0
tushki7 0:60d829a0353a 9 *
tushki7 0:60d829a0353a 10 * Unless required by applicable law or agreed to in writing, software
tushki7 0:60d829a0353a 11 * distributed under the License is distributed on an "AS IS" BASIS,
tushki7 0:60d829a0353a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
tushki7 0:60d829a0353a 13 * See the License for the specific language governing permissions and
tushki7 0:60d829a0353a 14 * limitations under the License.
tushki7 0:60d829a0353a 15 */
tushki7 0:60d829a0353a 16 #ifndef MBED_BUSIN_H
tushki7 0:60d829a0353a 17 #define MBED_BUSIN_H
tushki7 0:60d829a0353a 18
tushki7 0:60d829a0353a 19 #include "platform.h"
tushki7 0:60d829a0353a 20 #include "DigitalIn.h"
tushki7 0:60d829a0353a 21
tushki7 0:60d829a0353a 22 namespace mbed {
tushki7 0:60d829a0353a 23
tushki7 0:60d829a0353a 24 /** A digital input bus, used for reading the state of a collection of pins
tushki7 0:60d829a0353a 25 */
tushki7 0:60d829a0353a 26 class BusIn {
tushki7 0:60d829a0353a 27
tushki7 0:60d829a0353a 28 public:
tushki7 0:60d829a0353a 29 /* Group: Configuration Methods */
tushki7 0:60d829a0353a 30
tushki7 0:60d829a0353a 31 /** Create an BusIn, connected to the specified pins
tushki7 0:60d829a0353a 32 *
tushki7 0:60d829a0353a 33 * @param <n> DigitalIn pin to connect to bus bit <n> (p5-p30, NC)
tushki7 0:60d829a0353a 34 *
tushki7 0:60d829a0353a 35 * @note
tushki7 0:60d829a0353a 36 * It is only required to specify as many pin variables as is required
tushki7 0:60d829a0353a 37 * for the bus; the rest will default to NC (not connected)
tushki7 0:60d829a0353a 38 */
tushki7 0:60d829a0353a 39 BusIn(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC,
tushki7 0:60d829a0353a 40 PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC,
tushki7 0:60d829a0353a 41 PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC,
tushki7 0:60d829a0353a 42 PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC);
tushki7 0:60d829a0353a 43
tushki7 0:60d829a0353a 44 BusIn(PinName pins[16]);
tushki7 0:60d829a0353a 45
tushki7 0:60d829a0353a 46 virtual ~BusIn();
tushki7 0:60d829a0353a 47
tushki7 0:60d829a0353a 48 /** Read the value of the input bus
tushki7 0:60d829a0353a 49 *
tushki7 0:60d829a0353a 50 * @returns
tushki7 0:60d829a0353a 51 * An integer with each bit corresponding to the value read from the associated DigitalIn pin
tushki7 0:60d829a0353a 52 */
tushki7 0:60d829a0353a 53 int read();
tushki7 0:60d829a0353a 54
tushki7 0:60d829a0353a 55 /** Set the input pin mode
tushki7 0:60d829a0353a 56 *
tushki7 0:60d829a0353a 57 * @param mode PullUp, PullDown, PullNone
tushki7 0:60d829a0353a 58 */
tushki7 0:60d829a0353a 59 void mode(PinMode pull);
tushki7 0:60d829a0353a 60
tushki7 0:60d829a0353a 61 /** Binary mask of bus pins connected to actual pins (not NC pins)
tushki7 0:60d829a0353a 62 * If bus pin is in NC state make corresponding bit will be cleared (set to 0), else bit will be set to 1
tushki7 0:60d829a0353a 63 *
tushki7 0:60d829a0353a 64 * @returns
tushki7 0:60d829a0353a 65 * Binary mask of connected pins
tushki7 0:60d829a0353a 66 */
tushki7 0:60d829a0353a 67 int mask() {
tushki7 0:60d829a0353a 68 return _nc_mask;
tushki7 0:60d829a0353a 69 }
tushki7 0:60d829a0353a 70
tushki7 0:60d829a0353a 71 #ifdef MBED_OPERATORS
tushki7 0:60d829a0353a 72 /** A shorthand for read()
tushki7 0:60d829a0353a 73 */
tushki7 0:60d829a0353a 74 operator int();
tushki7 0:60d829a0353a 75
tushki7 0:60d829a0353a 76 /** Access to particular bit in random-iterator fashion
tushki7 0:60d829a0353a 77 */
tushki7 0:60d829a0353a 78 DigitalIn & operator[] (int index);
tushki7 0:60d829a0353a 79 #endif
tushki7 0:60d829a0353a 80
tushki7 0:60d829a0353a 81 protected:
tushki7 0:60d829a0353a 82 DigitalIn* _pin[16];
tushki7 0:60d829a0353a 83
tushki7 0:60d829a0353a 84 /** Mask of bus's NC pins
tushki7 0:60d829a0353a 85 * If bit[n] is set to 1 - pin is connected
tushki7 0:60d829a0353a 86 * if bit[n] is cleared - pin is not connected (NC)
tushki7 0:60d829a0353a 87 */
tushki7 0:60d829a0353a 88 int _nc_mask;
tushki7 0:60d829a0353a 89
tushki7 0:60d829a0353a 90 /* disallow copy constructor and assignment operators */
tushki7 0:60d829a0353a 91 private:
tushki7 0:60d829a0353a 92 BusIn(const BusIn&);
tushki7 0:60d829a0353a 93 BusIn & operator = (const BusIn&);
tushki7 0:60d829a0353a 94 };
tushki7 0:60d829a0353a 95
tushki7 0:60d829a0353a 96 } // namespace mbed
tushki7 0:60d829a0353a 97
tushki7 0:60d829a0353a 98 #endif