MCP23S17 Bufferd
ExioBufferedRotaryEncoder.cpp@6:cc3b65d44e9e, 2016-11-04 (annotated)
- Committer:
- ryood
- Date:
- Fri Nov 04 23:16:41 2016 +0000
- Revision:
- 6:cc3b65d44e9e
- Parent:
- 5:23d00c321cb1
Add: Test ExioBufferedPinDetect
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ryood | 4:acd6e59f8544 | 1 | /** |
ryood | 4:acd6e59f8544 | 2 | * ============================================================================= |
ryood | 4:acd6e59f8544 | 3 | * Rotary Encoder class (Version 0.0.1) |
ryood | 4:acd6e59f8544 | 4 | * ============================================================================= |
ryood | 4:acd6e59f8544 | 5 | * Copyright (c) 2010 Shinichiro Nakamura (CuBeatSystems) |
ryood | 4:acd6e59f8544 | 6 | * |
ryood | 4:acd6e59f8544 | 7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
ryood | 4:acd6e59f8544 | 8 | * of this software and associated documentation files (the "Software"), to deal |
ryood | 4:acd6e59f8544 | 9 | * in the Software without restriction, including without limitation the rights |
ryood | 4:acd6e59f8544 | 10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
ryood | 4:acd6e59f8544 | 11 | * copies of the Software, and to permit persons to whom the Software is |
ryood | 4:acd6e59f8544 | 12 | * furnished to do so, subject to the following conditions: |
ryood | 4:acd6e59f8544 | 13 | * |
ryood | 4:acd6e59f8544 | 14 | * The above copyright notice and this permission notice shall be included in |
ryood | 4:acd6e59f8544 | 15 | * all copies or substantial portions of the Software. |
ryood | 4:acd6e59f8544 | 16 | * |
ryood | 4:acd6e59f8544 | 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
ryood | 4:acd6e59f8544 | 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
ryood | 4:acd6e59f8544 | 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
ryood | 4:acd6e59f8544 | 20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
ryood | 4:acd6e59f8544 | 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
ryood | 4:acd6e59f8544 | 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
ryood | 4:acd6e59f8544 | 23 | * THE SOFTWARE. |
ryood | 4:acd6e59f8544 | 24 | * ============================================================================= |
ryood | 4:acd6e59f8544 | 25 | */ |
ryood | 4:acd6e59f8544 | 26 | |
ryood | 4:acd6e59f8544 | 27 | /* |
ryood | 4:acd6e59f8544 | 28 | * 2016.11.5 Customized for MCP23S17 Buffered Input by ryood |
ryood | 4:acd6e59f8544 | 29 | */ |
ryood | 4:acd6e59f8544 | 30 | #include "ExioBufferedRotaryEncoder.h" |
ryood | 4:acd6e59f8544 | 31 | |
ryood | 4:acd6e59f8544 | 32 | /** |
ryood | 4:acd6e59f8544 | 33 | * Create rotary encoder. |
ryood | 4:acd6e59f8544 | 34 | * @param buffer |
ryood | 4:acd6e59f8544 | 35 | * @param pin1 |
ryood | 4:acd6e59f8544 | 36 | * @param pin2 |
ryood | 4:acd6e59f8544 | 37 | * @param min Minimum value. |
ryood | 4:acd6e59f8544 | 38 | * @param max Maximum value. |
ryood | 4:acd6e59f8544 | 39 | * @param val Default value. |
ryood | 4:acd6e59f8544 | 40 | */ |
ryood | 4:acd6e59f8544 | 41 | ExioBufferedRotaryEncoder::ExioBufferedRotaryEncoder( |
ryood | 4:acd6e59f8544 | 42 | ExioInBuffer* buffer, int pin1, int pin2, |
ryood | 4:acd6e59f8544 | 43 | int min, int max, int val) |
ryood | 4:acd6e59f8544 | 44 | : min(min), max(max), val(val) |
ryood | 4:acd6e59f8544 | 45 | { |
ryood | 4:acd6e59f8544 | 46 | in1 = new ExioBufferedIn(buffer, pin1); |
ryood | 4:acd6e59f8544 | 47 | in2 = new ExioBufferedIn(buffer, pin2); |
ryood | 4:acd6e59f8544 | 48 | in1->mode(PullUp); |
ryood | 4:acd6e59f8544 | 49 | in2->mode(PullUp); |
ryood | 4:acd6e59f8544 | 50 | //ticker.attach_us(this, &ExioMcp23s17RotaryEncoder::func_ticker, 500); |
ryood | 4:acd6e59f8544 | 51 | } |
ryood | 4:acd6e59f8544 | 52 | |
ryood | 4:acd6e59f8544 | 53 | /** |
ryood | 4:acd6e59f8544 | 54 | * Dispose. |
ryood | 4:acd6e59f8544 | 55 | */ |
ryood | 4:acd6e59f8544 | 56 | ExioBufferedRotaryEncoder::~ExioBufferedRotaryEncoder() { |
ryood | 4:acd6e59f8544 | 57 | delete in1; |
ryood | 4:acd6e59f8544 | 58 | delete in2; |
ryood | 4:acd6e59f8544 | 59 | } |
ryood | 4:acd6e59f8544 | 60 | |
ryood | 4:acd6e59f8544 | 61 | /** |
ryood | 4:acd6e59f8544 | 62 | * Internal tick function. |
ryood | 4:acd6e59f8544 | 63 | */ |
ryood | 4:acd6e59f8544 | 64 | void ExioBufferedRotaryEncoder::func_ticker() { |
ryood | 4:acd6e59f8544 | 65 | //static uint8_t code; |
ryood | 4:acd6e59f8544 | 66 | |
ryood | 4:acd6e59f8544 | 67 | code = (code << 2) + (((in1->read() << 1) | (in2->read() << 0)) & 3); |
ryood | 4:acd6e59f8544 | 68 | code &= 15; |
ryood | 4:acd6e59f8544 | 69 | switch (code) { |
ryood | 4:acd6e59f8544 | 70 | case 0x7: |
ryood | 4:acd6e59f8544 | 71 | if (min < val) { |
ryood | 4:acd6e59f8544 | 72 | val--; |
ryood | 4:acd6e59f8544 | 73 | } else { |
ryood | 4:acd6e59f8544 | 74 | val = min; |
ryood | 4:acd6e59f8544 | 75 | } |
ryood | 4:acd6e59f8544 | 76 | break; |
ryood | 4:acd6e59f8544 | 77 | case 0xd: |
ryood | 4:acd6e59f8544 | 78 | if (val < max) { |
ryood | 4:acd6e59f8544 | 79 | val++; |
ryood | 4:acd6e59f8544 | 80 | } else { |
ryood | 4:acd6e59f8544 | 81 | val = max; |
ryood | 4:acd6e59f8544 | 82 | } |
ryood | 4:acd6e59f8544 | 83 | break; |
ryood | 4:acd6e59f8544 | 84 | } |
ryood | 4:acd6e59f8544 | 85 | } |