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/DigitalOut.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_DIGITALOUT_H
tushki7 0:60d829a0353a 17 #define MBED_DIGITALOUT_H
tushki7 0:60d829a0353a 18
tushki7 0:60d829a0353a 19 #include "platform.h"
tushki7 0:60d829a0353a 20 #include "gpio_api.h"
tushki7 0:60d829a0353a 21
tushki7 0:60d829a0353a 22 namespace mbed {
tushki7 0:60d829a0353a 23
tushki7 0:60d829a0353a 24 /** A digital output, used for setting the state of a pin
tushki7 0:60d829a0353a 25 *
tushki7 0:60d829a0353a 26 * Example:
tushki7 0:60d829a0353a 27 * @code
tushki7 0:60d829a0353a 28 * // Toggle a LED
tushki7 0:60d829a0353a 29 * #include "mbed.h"
tushki7 0:60d829a0353a 30 *
tushki7 0:60d829a0353a 31 * DigitalOut led(LED1);
tushki7 0:60d829a0353a 32 *
tushki7 0:60d829a0353a 33 * int main() {
tushki7 0:60d829a0353a 34 * while(1) {
tushki7 0:60d829a0353a 35 * led = !led;
tushki7 0:60d829a0353a 36 * wait(0.2);
tushki7 0:60d829a0353a 37 * }
tushki7 0:60d829a0353a 38 * }
tushki7 0:60d829a0353a 39 * @endcode
tushki7 0:60d829a0353a 40 */
tushki7 0:60d829a0353a 41 class DigitalOut {
tushki7 0:60d829a0353a 42
tushki7 0:60d829a0353a 43 public:
tushki7 0:60d829a0353a 44 /** Create a DigitalOut connected to the specified pin
tushki7 0:60d829a0353a 45 *
tushki7 0:60d829a0353a 46 * @param pin DigitalOut pin to connect to
tushki7 0:60d829a0353a 47 */
tushki7 0:60d829a0353a 48 DigitalOut(PinName pin) : gpio() {
tushki7 0:60d829a0353a 49 gpio_init_out(&gpio, pin);
tushki7 0:60d829a0353a 50 }
tushki7 0:60d829a0353a 51
tushki7 0:60d829a0353a 52 /** Create a DigitalOut connected to the specified pin
tushki7 0:60d829a0353a 53 *
tushki7 0:60d829a0353a 54 * @param pin DigitalOut pin to connect to
tushki7 0:60d829a0353a 55 * @param value the initial pin value
tushki7 0:60d829a0353a 56 */
tushki7 0:60d829a0353a 57 DigitalOut(PinName pin, int value) : gpio() {
tushki7 0:60d829a0353a 58 gpio_init_out_ex(&gpio, pin, value);
tushki7 0:60d829a0353a 59 }
tushki7 0:60d829a0353a 60
tushki7 0:60d829a0353a 61 /** Set the output, specified as 0 or 1 (int)
tushki7 0:60d829a0353a 62 *
tushki7 0:60d829a0353a 63 * @param value An integer specifying the pin output value,
tushki7 0:60d829a0353a 64 * 0 for logical 0, 1 (or any other non-zero value) for logical 1
tushki7 0:60d829a0353a 65 */
tushki7 0:60d829a0353a 66 void write(int value) {
tushki7 0:60d829a0353a 67 gpio_write(&gpio, value);
tushki7 0:60d829a0353a 68 }
tushki7 0:60d829a0353a 69
tushki7 0:60d829a0353a 70 /** Return the output setting, represented as 0 or 1 (int)
tushki7 0:60d829a0353a 71 *
tushki7 0:60d829a0353a 72 * @returns
tushki7 0:60d829a0353a 73 * an integer representing the output setting of the pin,
tushki7 0:60d829a0353a 74 * 0 for logical 0, 1 for logical 1
tushki7 0:60d829a0353a 75 */
tushki7 0:60d829a0353a 76 int read() {
tushki7 0:60d829a0353a 77 return gpio_read(&gpio);
tushki7 0:60d829a0353a 78 }
tushki7 0:60d829a0353a 79
tushki7 0:60d829a0353a 80 /** Return the output setting, represented as 0 or 1 (int)
tushki7 0:60d829a0353a 81 *
tushki7 0:60d829a0353a 82 * @returns
tushki7 0:60d829a0353a 83 * Non zero value if pin is connected to uc GPIO
tushki7 0:60d829a0353a 84 * 0 if gpio object was initialized with NC
tushki7 0:60d829a0353a 85 */
tushki7 0:60d829a0353a 86 int is_connected() {
tushki7 0:60d829a0353a 87 return gpio_is_connected(&gpio);
tushki7 0:60d829a0353a 88 }
tushki7 0:60d829a0353a 89
tushki7 0:60d829a0353a 90 #ifdef MBED_OPERATORS
tushki7 0:60d829a0353a 91 /** A shorthand for write()
tushki7 0:60d829a0353a 92 */
tushki7 0:60d829a0353a 93 DigitalOut& operator= (int value) {
tushki7 0:60d829a0353a 94 write(value);
tushki7 0:60d829a0353a 95 return *this;
tushki7 0:60d829a0353a 96 }
tushki7 0:60d829a0353a 97
tushki7 0:60d829a0353a 98 DigitalOut& operator= (DigitalOut& rhs) {
tushki7 0:60d829a0353a 99 write(rhs.read());
tushki7 0:60d829a0353a 100 return *this;
tushki7 0:60d829a0353a 101 }
tushki7 0:60d829a0353a 102
tushki7 0:60d829a0353a 103 /** A shorthand for read()
tushki7 0:60d829a0353a 104 */
tushki7 0:60d829a0353a 105 operator int() {
tushki7 0:60d829a0353a 106 return read();
tushki7 0:60d829a0353a 107 }
tushki7 0:60d829a0353a 108 #endif
tushki7 0:60d829a0353a 109
tushki7 0:60d829a0353a 110 protected:
tushki7 0:60d829a0353a 111 gpio_t gpio;
tushki7 0:60d829a0353a 112 };
tushki7 0:60d829a0353a 113
tushki7 0:60d829a0353a 114 } // namespace mbed
tushki7 0:60d829a0353a 115
tushki7 0:60d829a0353a 116 #endif