Orignal AVR Tiny USI Based I2C slave Charlieplexing 7SEG LED Driver.
My7SEG.cpp@2:e7362bcb9e1f, 2013-12-12 (annotated)
- Committer:
- bant62
- Date:
- Thu Dec 12 00:35:39 2013 +0000
- Revision:
- 2:e7362bcb9e1f
- Parent:
- 1:1ae1e21ba67f
Fixed the software description;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bant62 | 0:1c9f9768e990 | 1 | /** |
bant62 | 0:1c9f9768e990 | 2 | ***************************************************************************** |
bant62 | 0:1c9f9768e990 | 3 | * File Name : My7SEG.cpp |
bant62 | 0:1c9f9768e990 | 4 | * |
bant62 | 0:1c9f9768e990 | 5 | * Title : ORGINAL I2C LCD Display Claass Source File |
bant62 | 0:1c9f9768e990 | 6 | * Revision : 0.1 |
bant62 | 0:1c9f9768e990 | 7 | * Notes : |
bant62 | 0:1c9f9768e990 | 8 | * Target Board : mbed NXP LPC1768, mbed LPC1114FN28 etc |
bant62 | 0:1c9f9768e990 | 9 | * Tool Chain : ???? |
bant62 | 0:1c9f9768e990 | 10 | * |
bant62 | 0:1c9f9768e990 | 11 | * Revision History: |
bant62 | 0:1c9f9768e990 | 12 | * When Who Description of change |
bant62 | 0:1c9f9768e990 | 13 | * ----------- ----------- ----------------------- |
bant62 | 2:e7362bcb9e1f | 14 | * 2013/12/11 Hiroshi M init |
bant62 | 0:1c9f9768e990 | 15 | ***************************************************************************** |
bant62 | 0:1c9f9768e990 | 16 | * |
bant62 | 0:1c9f9768e990 | 17 | * Copyright (C) 2013 Hiroshi M, MIT License |
bant62 | 0:1c9f9768e990 | 18 | * |
bant62 | 0:1c9f9768e990 | 19 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
bant62 | 0:1c9f9768e990 | 20 | * and associated documentation files (the "Software"), to deal in the Software without restriction, |
bant62 | 0:1c9f9768e990 | 21 | * including without limitation the rights to use, copy, modify, merge, publish, distribute, |
bant62 | 0:1c9f9768e990 | 22 | * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
bant62 | 0:1c9f9768e990 | 23 | * furnished to do so, subject to the following conditions: |
bant62 | 0:1c9f9768e990 | 24 | * |
bant62 | 0:1c9f9768e990 | 25 | * The above copyright notice and this permission notice shall be included in all copies or |
bant62 | 0:1c9f9768e990 | 26 | * substantial portions of the Software. |
bant62 | 0:1c9f9768e990 | 27 | * |
bant62 | 0:1c9f9768e990 | 28 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
bant62 | 0:1c9f9768e990 | 29 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
bant62 | 0:1c9f9768e990 | 30 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
bant62 | 0:1c9f9768e990 | 31 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
bant62 | 0:1c9f9768e990 | 32 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
bant62 | 0:1c9f9768e990 | 33 | * |
bant62 | 0:1c9f9768e990 | 34 | **/ |
bant62 | 0:1c9f9768e990 | 35 | |
bant62 | 0:1c9f9768e990 | 36 | /* Includes ----------------------------------------------------------------- */ |
bant62 | 0:1c9f9768e990 | 37 | #include "mbed.h" |
bant62 | 0:1c9f9768e990 | 38 | #include "My7SEG.h" |
bant62 | 0:1c9f9768e990 | 39 | |
bant62 | 0:1c9f9768e990 | 40 | /* Private typedef ---------------------------------------------------------- */ |
bant62 | 0:1c9f9768e990 | 41 | /* Private define ----------------------------------------------------------- */ |
bant62 | 0:1c9f9768e990 | 42 | /* Private macro ------------------------------------------------------------ */ |
bant62 | 0:1c9f9768e990 | 43 | /* Private variables -------------------------------------------------------- */ |
bant62 | 0:1c9f9768e990 | 44 | /* member fanctions --------------------------------------------------------- */ |
bant62 | 0:1c9f9768e990 | 45 | |
bant62 | 0:1c9f9768e990 | 46 | // Constractor |
bant62 | 0:1c9f9768e990 | 47 | My7SEG::My7SEG(I2C *i2c): _i2c(i2c) |
bant62 | 0:1c9f9768e990 | 48 | { |
bant62 | 0:1c9f9768e990 | 49 | } |
bant62 | 0:1c9f9768e990 | 50 | |
bant62 | 0:1c9f9768e990 | 51 | int My7SEG::writeBytes(const char *data, int length, bool repeated) |
bant62 | 0:1c9f9768e990 | 52 | { |
bant62 | 0:1c9f9768e990 | 53 | wait_us(i2c_bit_wait_us); |
bant62 | 0:1c9f9768e990 | 54 | _i2c->start(); |
bant62 | 0:1c9f9768e990 | 55 | |
bant62 | 0:1c9f9768e990 | 56 | wait_us(i2c_bit_wait_us); |
bant62 | 0:1c9f9768e990 | 57 | if (_i2c->write(i2c_addr) != 1) |
bant62 | 0:1c9f9768e990 | 58 | { |
bant62 | 0:1c9f9768e990 | 59 | wait_us(i2c_bit_wait_us); |
bant62 | 0:1c9f9768e990 | 60 | _i2c->stop(); |
bant62 | 0:1c9f9768e990 | 61 | return _i2cFAILURE; |
bant62 | 0:1c9f9768e990 | 62 | } |
bant62 | 0:1c9f9768e990 | 63 | |
bant62 | 0:1c9f9768e990 | 64 | for (int i = 0; i < length; i++) |
bant62 | 0:1c9f9768e990 | 65 | { |
bant62 | 0:1c9f9768e990 | 66 | wait_us(i2c_bit_wait_us); |
bant62 | 0:1c9f9768e990 | 67 | if (_i2c->write(data[i]) != 1) |
bant62 | 0:1c9f9768e990 | 68 | { |
bant62 | 0:1c9f9768e990 | 69 | wait_us(i2c_bit_wait_us); |
bant62 | 0:1c9f9768e990 | 70 | _i2c->stop(); |
bant62 | 0:1c9f9768e990 | 71 | return _i2cFAILURE; |
bant62 | 0:1c9f9768e990 | 72 | } |
bant62 | 0:1c9f9768e990 | 73 | } |
bant62 | 0:1c9f9768e990 | 74 | if (!repeated) |
bant62 | 0:1c9f9768e990 | 75 | { |
bant62 | 0:1c9f9768e990 | 76 | wait_us(i2c_bit_wait_us); |
bant62 | 0:1c9f9768e990 | 77 | _i2c->stop(); |
bant62 | 0:1c9f9768e990 | 78 | } |
bant62 | 0:1c9f9768e990 | 79 | return _i2cSUCCESS; |
bant62 | 0:1c9f9768e990 | 80 | } |
bant62 | 0:1c9f9768e990 | 81 | |
bant62 | 0:1c9f9768e990 | 82 | int My7SEG::clear(void) |
bant62 | 0:1c9f9768e990 | 83 | { |
bant62 | 0:1c9f9768e990 | 84 | char buff[2] = { ESC, 'C' }; |
bant62 | 0:1c9f9768e990 | 85 | |
bant62 | 0:1c9f9768e990 | 86 | return writeBytes(buff, sizeof(buff)); |
bant62 | 0:1c9f9768e990 | 87 | } |
bant62 | 0:1c9f9768e990 | 88 | |
bant62 | 0:1c9f9768e990 | 89 | int My7SEG::shift_left(void) |
bant62 | 0:1c9f9768e990 | 90 | { |
bant62 | 0:1c9f9768e990 | 91 | char buff[2] = { ESC, '<' }; |
bant62 | 0:1c9f9768e990 | 92 | |
bant62 | 0:1c9f9768e990 | 93 | return writeBytes(buff, sizeof(buff)); |
bant62 | 0:1c9f9768e990 | 94 | } |
bant62 | 0:1c9f9768e990 | 95 | |
bant62 | 0:1c9f9768e990 | 96 | int My7SEG::shift_right(void) |
bant62 | 0:1c9f9768e990 | 97 | { |
bant62 | 0:1c9f9768e990 | 98 | char buff[2] = { ESC, '>' }; |
bant62 | 0:1c9f9768e990 | 99 | |
bant62 | 0:1c9f9768e990 | 100 | return writeBytes(buff, sizeof(buff)); |
bant62 | 0:1c9f9768e990 | 101 | } |
bant62 | 0:1c9f9768e990 | 102 | |
bant62 | 0:1c9f9768e990 | 103 | int My7SEG::rotato_left(void) |
bant62 | 0:1c9f9768e990 | 104 | { |
bant62 | 0:1c9f9768e990 | 105 | char buff[2] = { ESC, '[' }; |
bant62 | 0:1c9f9768e990 | 106 | |
bant62 | 0:1c9f9768e990 | 107 | return writeBytes(buff, sizeof(buff)); |
bant62 | 0:1c9f9768e990 | 108 | } |
bant62 | 0:1c9f9768e990 | 109 | |
bant62 | 0:1c9f9768e990 | 110 | int My7SEG::rotato_right(void) |
bant62 | 0:1c9f9768e990 | 111 | { |
bant62 | 0:1c9f9768e990 | 112 | char buff[2] = { ESC, ']' }; |
bant62 | 0:1c9f9768e990 | 113 | |
bant62 | 0:1c9f9768e990 | 114 | return writeBytes(buff, sizeof(buff)); |
bant62 | 0:1c9f9768e990 | 115 | } |
bant62 | 0:1c9f9768e990 | 116 | |
bant62 | 0:1c9f9768e990 | 117 | // 一文字表示 |
bant62 | 0:1c9f9768e990 | 118 | int My7SEG::printChar(char c) |
bant62 | 0:1c9f9768e990 | 119 | { |
bant62 | 0:1c9f9768e990 | 120 | return writeBytes(&c, 1); |
bant62 | 0:1c9f9768e990 | 121 | } |
bant62 | 0:1c9f9768e990 | 122 | |
bant62 | 0:1c9f9768e990 | 123 | int My7SEG::printPosChar(int pos, char chr) |
bant62 | 0:1c9f9768e990 | 124 | { |
bant62 | 0:1c9f9768e990 | 125 | char buff[4]; |
bant62 | 0:1c9f9768e990 | 126 | |
bant62 | 1:1ae1e21ba67f | 127 | if( pos < 0 && 7 < pos ) |
bant62 | 0:1c9f9768e990 | 128 | { |
bant62 | 0:1c9f9768e990 | 129 | return _i2cFAILURE; |
bant62 | 0:1c9f9768e990 | 130 | } |
bant62 | 0:1c9f9768e990 | 131 | |
bant62 | 0:1c9f9768e990 | 132 | buff[0] = ESC; |
bant62 | 0:1c9f9768e990 | 133 | buff[1] = 'L'; |
bant62 | 0:1c9f9768e990 | 134 | buff[2] = '0' + pos; |
bant62 | 0:1c9f9768e990 | 135 | buff[3] = chr; |
bant62 | 0:1c9f9768e990 | 136 | |
bant62 | 0:1c9f9768e990 | 137 | return writeBytes(buff, sizeof(buff)); |
bant62 | 0:1c9f9768e990 | 138 | } |
bant62 | 0:1c9f9768e990 | 139 | |
bant62 | 0:1c9f9768e990 | 140 | int My7SEG::printStr(const char *s) |
bant62 | 0:1c9f9768e990 | 141 | { |
bant62 | 0:1c9f9768e990 | 142 | int ret; |
bant62 | 0:1c9f9768e990 | 143 | char c; |
bant62 | 0:1c9f9768e990 | 144 | |
bant62 | 0:1c9f9768e990 | 145 | ret = _i2cSUCCESS; |
bant62 | 0:1c9f9768e990 | 146 | while ((c = *s++)!=NULL) |
bant62 | 0:1c9f9768e990 | 147 | { |
bant62 | 0:1c9f9768e990 | 148 | ret = writeBytes(&c, 1); |
bant62 | 0:1c9f9768e990 | 149 | if (ret == _i2cFAILURE) |
bant62 | 0:1c9f9768e990 | 150 | { |
bant62 | 0:1c9f9768e990 | 151 | return ret; |
bant62 | 0:1c9f9768e990 | 152 | } |
bant62 | 0:1c9f9768e990 | 153 | } |
bant62 | 0:1c9f9768e990 | 154 | |
bant62 | 0:1c9f9768e990 | 155 | return ret; |
bant62 | 0:1c9f9768e990 | 156 | } |
bant62 | 0:1c9f9768e990 | 157 | |
bant62 | 0:1c9f9768e990 | 158 | /////////////////////////////////////////////// |