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Test program for PwmSound class. Provides tests (demos) for the various sound generating functions in the class. Includes several MML melodies and music clips to test the play() function. Tested on an mbed LPC1768.
FastOut/FastOut.h@1:46f098444d0c, 2014-05-06 (annotated)
- Committer:
- paulg
- Date:
- Tue May 06 13:23:02 2014 +0000
- Revision:
- 1:46f098444d0c
Play music written in Music Macro Language (MML) with your mbed! This program fully tests the revised PwmSound library including the new play() function. It includes several MML melodies and music clips.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
paulg | 1:46f098444d0c | 1 | /****************************************************************************** |
paulg | 1:46f098444d0c | 2 | * File: FastOut.h |
paulg | 1:46f098444d0c | 3 | * Author: Paul Griffith |
paulg | 1:46f098444d0c | 4 | * Created: 18 Jun 2011 |
paulg | 1:46f098444d0c | 5 | * Last Edit: 29 Sep 2013 |
paulg | 1:46f098444d0c | 6 | * Version: 1.10 |
paulg | 1:46f098444d0c | 7 | * |
paulg | 1:46f098444d0c | 8 | * Description: |
paulg | 1:46f098444d0c | 9 | * High-speed digital output class for mbed |
paulg | 1:46f098444d0c | 10 | * |
paulg | 1:46f098444d0c | 11 | * Usage: FastOut<PinName> name; |
paulg | 1:46f098444d0c | 12 | * PinName uses the same assignment operators as with DigitalOut |
paulg | 1:46f098444d0c | 13 | * Example: FastOut<LED2> led2; |
paulg | 1:46f098444d0c | 14 | * A simple loop as below takes 4 clocks. This gives a 24MHz output waveform |
paulg | 1:46f098444d0c | 15 | * while (1) { out = 1; out = 0; } |
paulg | 1:46f098444d0c | 16 | * |
paulg | 1:46f098444d0c | 17 | * Class code by Igor Skochinsky. Copied from posting by Sylvain Azerian: |
paulg | 1:46f098444d0c | 18 | * http://sylvain.azarian.org/doku.php?id=mbed. |
paulg | 1:46f098444d0c | 19 | * |
paulg | 1:46f098444d0c | 20 | * Copyright (c) 2011-2013 Paul Griffith, MIT License |
paulg | 1:46f098444d0c | 21 | * |
paulg | 1:46f098444d0c | 22 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
paulg | 1:46f098444d0c | 23 | * of this software and associated documentation files (the "Software"), to |
paulg | 1:46f098444d0c | 24 | * deal in the Software without restriction, including without limitation the |
paulg | 1:46f098444d0c | 25 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
paulg | 1:46f098444d0c | 26 | * sell copies of the Software, and to permit persons to whom the Software is |
paulg | 1:46f098444d0c | 27 | * furnished to do so, subject to the following conditions: |
paulg | 1:46f098444d0c | 28 | * |
paulg | 1:46f098444d0c | 29 | * The above copyright notice and this permission notice shall be included in |
paulg | 1:46f098444d0c | 30 | * all copies or substantial portions of the Software. |
paulg | 1:46f098444d0c | 31 | * |
paulg | 1:46f098444d0c | 32 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
paulg | 1:46f098444d0c | 33 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
paulg | 1:46f098444d0c | 34 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
paulg | 1:46f098444d0c | 35 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
paulg | 1:46f098444d0c | 36 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
paulg | 1:46f098444d0c | 37 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
paulg | 1:46f098444d0c | 38 | * IN THE SOFTWARE. |
paulg | 1:46f098444d0c | 39 | * |
paulg | 1:46f098444d0c | 40 | * Modifications: |
paulg | 1:46f098444d0c | 41 | * Ver Date By Details |
paulg | 1:46f098444d0c | 42 | * 1.00 18Jun11 PG File created. |
paulg | 1:46f098444d0c | 43 | * 1.01 20Jun11 PG Tidied up, added header block. |
paulg | 1:46f098444d0c | 44 | * 1.10 29Sep13 PG Replaced link to MIT Licence with full MIT Licence text. |
paulg | 1:46f098444d0c | 45 | * |
paulg | 1:46f098444d0c | 46 | ******************************************************************************/ |
paulg | 1:46f098444d0c | 47 | |
paulg | 1:46f098444d0c | 48 | #ifndef MBED_FASTOUT_H |
paulg | 1:46f098444d0c | 49 | #define MBED_FASTOUT_H |
paulg | 1:46f098444d0c | 50 | |
paulg | 1:46f098444d0c | 51 | #include "mbed.h" |
paulg | 1:46f098444d0c | 52 | |
paulg | 1:46f098444d0c | 53 | template <PinName pin> class FastOut { |
paulg | 1:46f098444d0c | 54 | // pin = LPC_GPIO0_BASE + port * 32 + bit |
paulg | 1:46f098444d0c | 55 | // port = (pin - LPC_GPIO0_BASE) / 32 |
paulg | 1:46f098444d0c | 56 | // bit = (pin - LPC_GPIO0_BASE) % 32 |
paulg | 1:46f098444d0c | 57 | |
paulg | 1:46f098444d0c | 58 | // helper function to calculate the GPIO port definition for the pin |
paulg | 1:46f098444d0c | 59 | // we rely on the fact that port structs are 0x20 bytes apart |
paulg | 1:46f098444d0c | 60 | inline LPC_GPIO_TypeDef* portdef() { |
paulg | 1:46f098444d0c | 61 | return (LPC_GPIO_TypeDef*)(LPC_GPIO0_BASE + ((pin - P0_0)/32)*0x20); |
paulg | 1:46f098444d0c | 62 | }; |
paulg | 1:46f098444d0c | 63 | |
paulg | 1:46f098444d0c | 64 | // helper function to calculate the mask for the pin's bit in the port |
paulg | 1:46f098444d0c | 65 | inline uint32_t mask() { |
paulg | 1:46f098444d0c | 66 | return 1UL<<((pin - LPC_GPIO0_BASE) % 32); |
paulg | 1:46f098444d0c | 67 | }; |
paulg | 1:46f098444d0c | 68 | |
paulg | 1:46f098444d0c | 69 | public: |
paulg | 1:46f098444d0c | 70 | FastOut() { |
paulg | 1:46f098444d0c | 71 | // set FIODIR bit to 1 (output) |
paulg | 1:46f098444d0c | 72 | portdef()->FIODIR |= mask(); |
paulg | 1:46f098444d0c | 73 | } |
paulg | 1:46f098444d0c | 74 | void write(int value) { |
paulg | 1:46f098444d0c | 75 | if ( value ) |
paulg | 1:46f098444d0c | 76 | portdef()->FIOSET = mask(); |
paulg | 1:46f098444d0c | 77 | else |
paulg | 1:46f098444d0c | 78 | portdef()->FIOCLR = mask(); |
paulg | 1:46f098444d0c | 79 | } |
paulg | 1:46f098444d0c | 80 | int read() { |
paulg | 1:46f098444d0c | 81 | return (portdef()->FIOPIN) & mask() != 0; |
paulg | 1:46f098444d0c | 82 | } |
paulg | 1:46f098444d0c | 83 | FastOut& operator= (int value) { |
paulg | 1:46f098444d0c | 84 | write(value); |
paulg | 1:46f098444d0c | 85 | return *this; |
paulg | 1:46f098444d0c | 86 | }; |
paulg | 1:46f098444d0c | 87 | FastOut& operator= (FastOut& rhs) { |
paulg | 1:46f098444d0c | 88 | return write(rhs.read()); |
paulg | 1:46f098444d0c | 89 | }; |
paulg | 1:46f098444d0c | 90 | operator int() { |
paulg | 1:46f098444d0c | 91 | return read(); |
paulg | 1:46f098444d0c | 92 | }; |
paulg | 1:46f098444d0c | 93 | }; |
paulg | 1:46f098444d0c | 94 | |
paulg | 1:46f098444d0c | 95 | #endif |
paulg | 1:46f098444d0c | 96 | |
paulg | 1:46f098444d0c | 97 | // END of FastOut.h |