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/DigitalIn.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_DIGITALIN_H
tushki7 0:60d829a0353a 17 #define MBED_DIGITALIN_H
tushki7 0:60d829a0353a 18
tushki7 0:60d829a0353a 19 #include "platform.h"
tushki7 0:60d829a0353a 20
tushki7 0:60d829a0353a 21 #include "gpio_api.h"
tushki7 0:60d829a0353a 22
tushki7 0:60d829a0353a 23 namespace mbed {
tushki7 0:60d829a0353a 24
tushki7 0:60d829a0353a 25 /** A digital input, used for reading the state of a pin
tushki7 0:60d829a0353a 26 *
tushki7 0:60d829a0353a 27 * Example:
tushki7 0:60d829a0353a 28 * @code
tushki7 0:60d829a0353a 29 * // Flash an LED while a DigitalIn is true
tushki7 0:60d829a0353a 30 *
tushki7 0:60d829a0353a 31 * #include "mbed.h"
tushki7 0:60d829a0353a 32 *
tushki7 0:60d829a0353a 33 * DigitalIn enable(p5);
tushki7 0:60d829a0353a 34 * DigitalOut led(LED1);
tushki7 0:60d829a0353a 35 *
tushki7 0:60d829a0353a 36 * int main() {
tushki7 0:60d829a0353a 37 * while(1) {
tushki7 0:60d829a0353a 38 * if(enable) {
tushki7 0:60d829a0353a 39 * led = !led;
tushki7 0:60d829a0353a 40 * }
tushki7 0:60d829a0353a 41 * wait(0.25);
tushki7 0:60d829a0353a 42 * }
tushki7 0:60d829a0353a 43 * }
tushki7 0:60d829a0353a 44 * @endcode
tushki7 0:60d829a0353a 45 */
tushki7 0:60d829a0353a 46 class DigitalIn {
tushki7 0:60d829a0353a 47
tushki7 0:60d829a0353a 48 public:
tushki7 0:60d829a0353a 49 /** Create a DigitalIn connected to the specified pin
tushki7 0:60d829a0353a 50 *
tushki7 0:60d829a0353a 51 * @param pin DigitalIn pin to connect to
tushki7 0:60d829a0353a 52 */
tushki7 0:60d829a0353a 53 DigitalIn(PinName pin) : gpio() {
tushki7 0:60d829a0353a 54 gpio_init_in(&gpio, pin);
tushki7 0:60d829a0353a 55 }
tushki7 0:60d829a0353a 56
tushki7 0:60d829a0353a 57 /** Create a DigitalIn connected to the specified pin
tushki7 0:60d829a0353a 58 *
tushki7 0:60d829a0353a 59 * @param pin DigitalIn pin to connect to
tushki7 0:60d829a0353a 60 * @param mode the initial mode of the pin
tushki7 0:60d829a0353a 61 */
tushki7 0:60d829a0353a 62 DigitalIn(PinName pin, PinMode mode) : gpio() {
tushki7 0:60d829a0353a 63 gpio_init_in_ex(&gpio, pin, mode);
tushki7 0:60d829a0353a 64 }
tushki7 0:60d829a0353a 65 /** Read the input, represented as 0 or 1 (int)
tushki7 0:60d829a0353a 66 *
tushki7 0:60d829a0353a 67 * @returns
tushki7 0:60d829a0353a 68 * An integer representing the state of the input pin,
tushki7 0:60d829a0353a 69 * 0 for logical 0, 1 for logical 1
tushki7 0:60d829a0353a 70 */
tushki7 0:60d829a0353a 71 int read() {
tushki7 0:60d829a0353a 72 return gpio_read(&gpio);
tushki7 0:60d829a0353a 73 }
tushki7 0:60d829a0353a 74
tushki7 0:60d829a0353a 75 /** Set the input pin mode
tushki7 0:60d829a0353a 76 *
tushki7 0:60d829a0353a 77 * @param mode PullUp, PullDown, PullNone, OpenDrain
tushki7 0:60d829a0353a 78 */
tushki7 0:60d829a0353a 79 void mode(PinMode pull) {
tushki7 0:60d829a0353a 80 gpio_mode(&gpio, pull);
tushki7 0:60d829a0353a 81 }
tushki7 0:60d829a0353a 82
tushki7 0:60d829a0353a 83 /** Return the output setting, represented as 0 or 1 (int)
tushki7 0:60d829a0353a 84 *
tushki7 0:60d829a0353a 85 * @returns
tushki7 0:60d829a0353a 86 * Non zero value if pin is connected to uc GPIO
tushki7 0:60d829a0353a 87 * 0 if gpio object was initialized with NC
tushki7 0:60d829a0353a 88 */
tushki7 0:60d829a0353a 89 int is_connected() {
tushki7 0:60d829a0353a 90 return gpio_is_connected(&gpio);
tushki7 0:60d829a0353a 91 }
tushki7 0:60d829a0353a 92
tushki7 0:60d829a0353a 93 #ifdef MBED_OPERATORS
tushki7 0:60d829a0353a 94 /** An operator shorthand for read()
tushki7 0:60d829a0353a 95 */
tushki7 0:60d829a0353a 96 operator int() {
tushki7 0:60d829a0353a 97 return read();
tushki7 0:60d829a0353a 98 }
tushki7 0:60d829a0353a 99 #endif
tushki7 0:60d829a0353a 100
tushki7 0:60d829a0353a 101 protected:
tushki7 0:60d829a0353a 102 gpio_t gpio;
tushki7 0:60d829a0353a 103 };
tushki7 0:60d829a0353a 104
tushki7 0:60d829a0353a 105 } // namespace mbed
tushki7 0:60d829a0353a 106
tushki7 0:60d829a0353a 107 #endif