Jonne Valola / PokittoLib Featured

PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)

Dependents:   YATTT sd_map_test cPong SnowDemo ... more

PokittoLib

Library for programming Pokitto hardware

How to Use

  1. Import this library to online compiler (see button "import" on the right hand side
  2. DO NOT import mbed-src anymore, a better version is now included inside PokittoLib
  3. Change My_settings.h according to your project
  4. Start coding!

mbed-pokitto/api/AnalogOut.h@5:ea7377f3d1af, 2017-10-11 (annotated)

Committer:
Pokitto
Date:
Wed Oct 11 20:35:27 2017 +0000
Revision:
5:ea7377f3d1af
Fixed PokittoLib. Includes a working custom mbed-src

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 5:ea7377f3d1af 1 /* mbed Microcontroller Library
Pokitto 5:ea7377f3d1af 2 * Copyright (c) 2006-2013 ARM Limited
Pokitto 5:ea7377f3d1af 3 *
Pokitto 5:ea7377f3d1af 4 * Licensed under the Apache License, Version 2.0 (the "License");
Pokitto 5:ea7377f3d1af 5 * you may not use this file except in compliance with the License.
Pokitto 5:ea7377f3d1af 6 * You may obtain a copy of the License at
Pokitto 5:ea7377f3d1af 7 *
Pokitto 5:ea7377f3d1af 8 * http://www.apache.org/licenses/LICENSE-2.0
Pokitto 5:ea7377f3d1af 9 *
Pokitto 5:ea7377f3d1af 10 * Unless required by applicable law or agreed to in writing, software
Pokitto 5:ea7377f3d1af 11 * distributed under the License is distributed on an "AS IS" BASIS,
Pokitto 5:ea7377f3d1af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Pokitto 5:ea7377f3d1af 13 * See the License for the specific language governing permissions and
Pokitto 5:ea7377f3d1af 14 * limitations under the License.
Pokitto 5:ea7377f3d1af 15 */
Pokitto 5:ea7377f3d1af 16 #ifndef MBED_ANALOGOUT_H
Pokitto 5:ea7377f3d1af 17 #define MBED_ANALOGOUT_H
Pokitto 5:ea7377f3d1af 18
Pokitto 5:ea7377f3d1af 19 #include "platform.h"
Pokitto 5:ea7377f3d1af 20
Pokitto 5:ea7377f3d1af 21 #if DEVICE_ANALOGOUT
Pokitto 5:ea7377f3d1af 22
Pokitto 5:ea7377f3d1af 23 #include "analogout_api.h"
Pokitto 5:ea7377f3d1af 24
Pokitto 5:ea7377f3d1af 25 namespace mbed {
Pokitto 5:ea7377f3d1af 26
Pokitto 5:ea7377f3d1af 27 /** An analog output, used for setting the voltage on a pin
Pokitto 5:ea7377f3d1af 28 *
Pokitto 5:ea7377f3d1af 29 * Example:
Pokitto 5:ea7377f3d1af 30 * @code
Pokitto 5:ea7377f3d1af 31 * // Make a sawtooth output
Pokitto 5:ea7377f3d1af 32 *
Pokitto 5:ea7377f3d1af 33 * #include "mbed.h"
Pokitto 5:ea7377f3d1af 34 *
Pokitto 5:ea7377f3d1af 35 * AnalogOut tri(p18);
Pokitto 5:ea7377f3d1af 36 * int main() {
Pokitto 5:ea7377f3d1af 37 * while(1) {
Pokitto 5:ea7377f3d1af 38 * tri = tri + 0.01;
Pokitto 5:ea7377f3d1af 39 * wait_us(1);
Pokitto 5:ea7377f3d1af 40 * if(tri == 1) {
Pokitto 5:ea7377f3d1af 41 * tri = 0;
Pokitto 5:ea7377f3d1af 42 * }
Pokitto 5:ea7377f3d1af 43 * }
Pokitto 5:ea7377f3d1af 44 * }
Pokitto 5:ea7377f3d1af 45 * @endcode
Pokitto 5:ea7377f3d1af 46 */
Pokitto 5:ea7377f3d1af 47 class AnalogOut {
Pokitto 5:ea7377f3d1af 48
Pokitto 5:ea7377f3d1af 49 public:
Pokitto 5:ea7377f3d1af 50
Pokitto 5:ea7377f3d1af 51 /** Create an AnalogOut connected to the specified pin
Pokitto 5:ea7377f3d1af 52 *
Pokitto 5:ea7377f3d1af 53 * @param AnalogOut pin to connect to (18)
Pokitto 5:ea7377f3d1af 54 */
Pokitto 5:ea7377f3d1af 55 AnalogOut(PinName pin) {
Pokitto 5:ea7377f3d1af 56 analogout_init(&_dac, pin);
Pokitto 5:ea7377f3d1af 57 }
Pokitto 5:ea7377f3d1af 58
Pokitto 5:ea7377f3d1af 59 /** Set the output voltage, specified as a percentage (float)
Pokitto 5:ea7377f3d1af 60 *
Pokitto 5:ea7377f3d1af 61 * @param value A floating-point value representing the output voltage,
Pokitto 5:ea7377f3d1af 62 * specified as a percentage. The value should lie between
Pokitto 5:ea7377f3d1af 63 * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%).
Pokitto 5:ea7377f3d1af 64 * Values outside this range will be saturated to 0.0f or 1.0f.
Pokitto 5:ea7377f3d1af 65 */
Pokitto 5:ea7377f3d1af 66 void write(float value) {
Pokitto 5:ea7377f3d1af 67 analogout_write(&_dac, value);
Pokitto 5:ea7377f3d1af 68 }
Pokitto 5:ea7377f3d1af 69
Pokitto 5:ea7377f3d1af 70 /** Set the output voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
Pokitto 5:ea7377f3d1af 71 *
Pokitto 5:ea7377f3d1af 72 * @param value 16-bit unsigned short representing the output voltage,
Pokitto 5:ea7377f3d1af 73 * normalised to a 16-bit value (0x0000 = 0v, 0xFFFF = 3.3v)
Pokitto 5:ea7377f3d1af 74 */
Pokitto 5:ea7377f3d1af 75 void write_u16(unsigned short value) {
Pokitto 5:ea7377f3d1af 76 analogout_write_u16(&_dac, value);
Pokitto 5:ea7377f3d1af 77 }
Pokitto 5:ea7377f3d1af 78
Pokitto 5:ea7377f3d1af 79 /** Return the current output voltage setting, measured as a percentage (float)
Pokitto 5:ea7377f3d1af 80 *
Pokitto 5:ea7377f3d1af 81 * @returns
Pokitto 5:ea7377f3d1af 82 * A floating-point value representing the current voltage being output on the pin,
Pokitto 5:ea7377f3d1af 83 * measured as a percentage. The returned value will lie between
Pokitto 5:ea7377f3d1af 84 * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%).
Pokitto 5:ea7377f3d1af 85 *
Pokitto 5:ea7377f3d1af 86 * @note
Pokitto 5:ea7377f3d1af 87 * This value may not match exactly the value set by a previous write().
Pokitto 5:ea7377f3d1af 88 */
Pokitto 5:ea7377f3d1af 89 float read() {
Pokitto 5:ea7377f3d1af 90 return analogout_read(&_dac);
Pokitto 5:ea7377f3d1af 91 }
Pokitto 5:ea7377f3d1af 92
Pokitto 5:ea7377f3d1af 93 #ifdef MBED_OPERATORS
Pokitto 5:ea7377f3d1af 94 /** An operator shorthand for write()
Pokitto 5:ea7377f3d1af 95 */
Pokitto 5:ea7377f3d1af 96 AnalogOut& operator= (float percent) {
Pokitto 5:ea7377f3d1af 97 write(percent);
Pokitto 5:ea7377f3d1af 98 return *this;
Pokitto 5:ea7377f3d1af 99 }
Pokitto 5:ea7377f3d1af 100
Pokitto 5:ea7377f3d1af 101 AnalogOut& operator= (AnalogOut& rhs) {
Pokitto 5:ea7377f3d1af 102 write(rhs.read());
Pokitto 5:ea7377f3d1af 103 return *this;
Pokitto 5:ea7377f3d1af 104 }
Pokitto 5:ea7377f3d1af 105
Pokitto 5:ea7377f3d1af 106 /** An operator shorthand for read()
Pokitto 5:ea7377f3d1af 107 */
Pokitto 5:ea7377f3d1af 108 operator float() {
Pokitto 5:ea7377f3d1af 109 return read();
Pokitto 5:ea7377f3d1af 110 }
Pokitto 5:ea7377f3d1af 111 #endif
Pokitto 5:ea7377f3d1af 112
Pokitto 5:ea7377f3d1af 113 protected:
Pokitto 5:ea7377f3d1af 114 dac_t _dac;
Pokitto 5:ea7377f3d1af 115 };
Pokitto 5:ea7377f3d1af 116
Pokitto 5:ea7377f3d1af 117 } // namespace mbed
Pokitto 5:ea7377f3d1af 118
Pokitto 5:ea7377f3d1af 119 #endif
Pokitto 5:ea7377f3d1af 120
Pokitto 5:ea7377f3d1af 121 #endif