Maxim Integrated / Mbed 2 deprecated MAXREFDES99_demo

Demo for MAXREFDES99

Dependencies:   MAX7219 mbed

maxrefdes99.cpp@0:6b0161c3e440, 2016-01-12 (annotated)

Committer:
j3
Date:
Tue Jan 12 23:44:43 2016 +0000
Revision:
0:6b0161c3e440
Child:
2:9fdd01cf0f88
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
j3 0:6b0161c3e440 1 /******************************************************************//**
j3 0:6b0161c3e440 2 * @file maxrefdes99.cpp
j3 0:6b0161c3e440 3 *
j3 0:6b0161c3e440 4 * @author Justin Jordan
j3 0:6b0161c3e440 5 *
j3 0:6b0161c3e440 6 * @version 0.0
j3 0:6b0161c3e440 7 *
j3 0:6b0161c3e440 8 * Started: 08JAN16
j3 0:6b0161c3e440 9 *
j3 0:6b0161c3e440 10 * Updated:
j3 0:6b0161c3e440 11 *
j3 0:6b0161c3e440 12 * @brief Source file for maxrefdes99 demo
j3 0:6b0161c3e440 13 ***********************************************************************
j3 0:6b0161c3e440 14 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
j3 0:6b0161c3e440 15 *
j3 0:6b0161c3e440 16 * Permission is hereby granted, free of charge, to any person obtaining a
j3 0:6b0161c3e440 17 * copy of this software and associated documentation files (the "Software"),
j3 0:6b0161c3e440 18 * to deal in the Software without restriction, including without limitation
j3 0:6b0161c3e440 19 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
j3 0:6b0161c3e440 20 * and/or sell copies of the Software, and to permit persons to whom the
j3 0:6b0161c3e440 21 * Software is furnished to do so, subject to the following conditions:
j3 0:6b0161c3e440 22 *
j3 0:6b0161c3e440 23 * The above copyright notice and this permission notice shall be included
j3 0:6b0161c3e440 24 * in all copies or substantial portions of the Software.
j3 0:6b0161c3e440 25 *
j3 0:6b0161c3e440 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
j3 0:6b0161c3e440 27 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
j3 0:6b0161c3e440 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
j3 0:6b0161c3e440 29 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
j3 0:6b0161c3e440 30 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
j3 0:6b0161c3e440 31 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
j3 0:6b0161c3e440 32 * OTHER DEALINGS IN THE SOFTWARE.
j3 0:6b0161c3e440 33 *
j3 0:6b0161c3e440 34 * Except as contained in this notice, the name of Maxim Integrated
j3 0:6b0161c3e440 35 * Products, Inc. shall not be used except as stated in the Maxim Integrated
j3 0:6b0161c3e440 36 * Products, Inc. Branding Policy.
j3 0:6b0161c3e440 37 *
j3 0:6b0161c3e440 38 * The mere transfer of this software does not imply any licenses
j3 0:6b0161c3e440 39 * of trade secrets, proprietary technology, copyrights, patents,
j3 0:6b0161c3e440 40 * trademarks, maskwork rights, or any other form of intellectual
j3 0:6b0161c3e440 41 * property whatsoever. Maxim Integrated Products, Inc. retains all
j3 0:6b0161c3e440 42 * ownership rights.
j3 0:6b0161c3e440 43 **********************************************************************/
j3 0:6b0161c3e440 44
j3 0:6b0161c3e440 45
j3 0:6b0161c3e440 46 #include "maxrefdes99.h"
j3 0:6b0161c3e440 47
j3 0:6b0161c3e440 48
j3 0:6b0161c3e440 49 //5x7 character bit map
j3 0:6b0161c3e440 50 static const uint8_t font_5x7[95][6] = {
j3 0:6b0161c3e440 51 {0x00,0x00,0x00,0x00,0x00,0x00}, // SPACE
j3 0:6b0161c3e440 52 {0x00,0x00,0x00,0x4F,0x00,0x00}, // !
j3 0:6b0161c3e440 53 {0x00,0x00,0x07,0x00,0x07,0x00}, // "
j3 0:6b0161c3e440 54 {0x00,0x14,0x7F,0x14,0x7F,0x14}, // #
j3 0:6b0161c3e440 55 {0x00,0x24,0x2A,0x7F,0x2A,0x12}, // $
j3 0:6b0161c3e440 56 {0x00,0x23,0x13,0x08,0x64,0x62}, // %
j3 0:6b0161c3e440 57 {0x00,0x36,0x49,0x55,0x22,0x50}, // &
j3 0:6b0161c3e440 58 {0x00,0x00,0x05,0x03,0x00,0x00}, // '
j3 0:6b0161c3e440 59 {0x00,0x00,0x1C,0x22,0x41,0x00}, // (
j3 0:6b0161c3e440 60 {0x00,0x00,0x41,0x22,0x1C,0x00}, // )
j3 0:6b0161c3e440 61 {0x00,0x14,0x08,0x3E,0x08,0x14}, // *
j3 0:6b0161c3e440 62 {0x00,0x08,0x08,0x3E,0x08,0x08}, // +
j3 0:6b0161c3e440 63 {0x00,0x00,0x50,0x30,0x00,0x00}, // ,
j3 0:6b0161c3e440 64 {0x00,0x08,0x08,0x08,0x08,0x08}, // -
j3 0:6b0161c3e440 65 {0x00,0x00,0x60,0x60,0x00,0x00}, // .
j3 0:6b0161c3e440 66 {0x00,0x20,0x10,0x08,0x04,0x02}, // /
j3 0:6b0161c3e440 67 {0x00,0x3E,0x51,0x49,0x45,0x3E}, // 0
j3 0:6b0161c3e440 68 {0x00,0x00,0x42,0x7F,0x40,0x00}, // 1
j3 0:6b0161c3e440 69 {0x00,0x42,0x61,0x51,0x49,0x46}, // 2
j3 0:6b0161c3e440 70 {0x00,0x21,0x41,0x45,0x4B,0x31}, // 3
j3 0:6b0161c3e440 71 {0x00,0x18,0x14,0x12,0x7F,0x10}, // 4
j3 0:6b0161c3e440 72 {0x00,0x27,0x45,0x45,0x45,0x39}, // 5
j3 0:6b0161c3e440 73 {0x00,0x3C,0x4A,0x49,0x49,0x30}, // 6
j3 0:6b0161c3e440 74 {0x00,0x01,0x71,0x09,0x05,0x03}, // 7
j3 0:6b0161c3e440 75 {0x00,0x36,0x49,0x49,0x49,0x36}, // 8
j3 0:6b0161c3e440 76 {0x00,0x06,0x49,0x49,0x29,0x1E}, // 9
j3 0:6b0161c3e440 77 {0x00,0x36,0x36,0x00,0x00,0x00}, // :
j3 0:6b0161c3e440 78 {0x00,0x56,0x36,0x00,0x00,0x00}, // ;
j3 0:6b0161c3e440 79 {0x00,0x08,0x14,0x22,0x41,0x00}, // <
j3 0:6b0161c3e440 80 {0x00,0x14,0x14,0x14,0x14,0x14}, // =
j3 0:6b0161c3e440 81 {0x00,0x00,0x41,0x22,0x14,0x08}, // >
j3 0:6b0161c3e440 82 {0x00,0x02,0x01,0x51,0x09,0x06}, // ?
j3 0:6b0161c3e440 83 {0x00,0x30,0x49,0x79,0x41,0x3E}, // @
j3 0:6b0161c3e440 84 {0x00,0x7E,0x11,0x11,0x11,0x7E}, // A
j3 0:6b0161c3e440 85 {0x00,0x7F,0x49,0x49,0x49,0x36}, // B
j3 0:6b0161c3e440 86 {0x00,0x3E,0x41,0x41,0x41,0x22}, // C
j3 0:6b0161c3e440 87 {0x00,0x7F,0x41,0x41,0x22,0x1C}, // D
j3 0:6b0161c3e440 88 {0x00,0x7F,0x49,0x49,0x49,0x41}, // E
j3 0:6b0161c3e440 89 {0x00,0x7F,0x09,0x09,0x09,0x01}, // F
j3 0:6b0161c3e440 90 {0x00,0x3E,0x41,0x49,0x49,0x7A}, // G
j3 0:6b0161c3e440 91 {0x00,0x7F,0x08,0x08,0x08,0x7F}, // H
j3 0:6b0161c3e440 92 {0x00,0x00,0x41,0x7F,0x41,0x00}, // I
j3 0:6b0161c3e440 93 {0x00,0x20,0x40,0x41,0x3F,0x01}, // J
j3 0:6b0161c3e440 94 {0x00,0x7F,0x08,0x14,0x22,0x41}, // K
j3 0:6b0161c3e440 95 {0x00,0x7F,0x40,0x40,0x40,0x40}, // L
j3 0:6b0161c3e440 96 {0x00,0x7F,0x02,0x0C,0x02,0x7F}, // M
j3 0:6b0161c3e440 97 {0x00,0x7F,0x04,0x08,0x10,0x7F}, // N
j3 0:6b0161c3e440 98 {0x00,0x3E,0x41,0x41,0x41,0x3E}, // O
j3 0:6b0161c3e440 99 {0x00,0x7F,0x09,0x09,0x09,0x06}, // P
j3 0:6b0161c3e440 100 {0x00,0x3E,0x41,0x51,0x21,0x5E}, // Q
j3 0:6b0161c3e440 101 {0x00,0x7F,0x09,0x19,0x29,0x46}, // R
j3 0:6b0161c3e440 102 {0x00,0x46,0x49,0x49,0x49,0x31}, // S
j3 0:6b0161c3e440 103 {0x00,0x01,0x01,0x7F,0x01,0x01}, // T
j3 0:6b0161c3e440 104 {0x00,0x3F,0x40,0x40,0x40,0x3F}, // U
j3 0:6b0161c3e440 105 {0x00,0x1F,0x20,0x40,0x20,0x1F}, // V
j3 0:6b0161c3e440 106 {0x00,0x3F,0x40,0x30,0x40,0x3F}, // W
j3 0:6b0161c3e440 107 {0x00,0x63,0x14,0x08,0x14,0x63}, // X
j3 0:6b0161c3e440 108 {0x00,0x07,0x08,0x70,0x08,0x07}, // Y
j3 0:6b0161c3e440 109 {0x00,0x61,0x51,0x49,0x45,0x43}, // Z
j3 0:6b0161c3e440 110 {0x00,0x00,0x7F,0x41,0x41,0x00}, // [
j3 0:6b0161c3e440 111 {0x00,0x02,0x04,0x08,0x10,0x20}, // backslash
j3 0:6b0161c3e440 112 {0x00,0x00,0x41,0x41,0x7F,0x00}, // ]
j3 0:6b0161c3e440 113 {0x00,0x04,0x02,0x01,0x02,0x04}, // ^
j3 0:6b0161c3e440 114 {0x00,0x40,0x40,0x40,0x40,0x40}, // _
j3 0:6b0161c3e440 115 {0x00,0x00,0x01,0x02,0x04,0x00}, // `
j3 0:6b0161c3e440 116 {0x00,0x20,0x54,0x54,0x54,0x78}, // a
j3 0:6b0161c3e440 117 {0x00,0x7F,0x50,0x48,0x48,0x30}, // b
j3 0:6b0161c3e440 118 {0x00,0x38,0x44,0x44,0x44,0x20}, // c
j3 0:6b0161c3e440 119 {0x00,0x38,0x44,0x44,0x48,0x7F}, // d
j3 0:6b0161c3e440 120 {0x00,0x38,0x54,0x54,0x54,0x18}, // e
j3 0:6b0161c3e440 121 {0x00,0x08,0x7E,0x09,0x01,0x02}, // f
j3 0:6b0161c3e440 122 {0x00,0x0C,0x52,0x52,0x52,0x3E}, // g
j3 0:6b0161c3e440 123 {0x00,0x7F,0x08,0x04,0x04,0x78}, // h
j3 0:6b0161c3e440 124 {0x00,0x00,0x44,0x7D,0x40,0x00}, // i
j3 0:6b0161c3e440 125 {0x00,0x20,0x40,0x44,0x3D,0x00}, // j
j3 0:6b0161c3e440 126 {0x00,0x7F,0x10,0x28,0x44,0x00}, // k
j3 0:6b0161c3e440 127 {0x00,0x00,0x41,0x7F,0x40,0x00}, // l
j3 0:6b0161c3e440 128 {0x00,0x78,0x04,0x58,0x44,0x78}, // m
j3 0:6b0161c3e440 129 {0x00,0x7C,0x08,0x04,0x04,0x78}, // n
j3 0:6b0161c3e440 130 {0x00,0x38,0x44,0x44,0x44,0x38}, // o
j3 0:6b0161c3e440 131 {0x00,0x7C,0x14,0x14,0x14,0x08}, // p
j3 0:6b0161c3e440 132 {0x00,0x08,0x14,0x14,0x18,0x7C}, // q
j3 0:6b0161c3e440 133 {0x00,0x7C,0x08,0x04,0x04,0x08}, // r
j3 0:6b0161c3e440 134 {0x00,0x48,0x54,0x54,0x54,0x20}, // s
j3 0:6b0161c3e440 135 {0x00,0x04,0x3F,0x44,0x40,0x20}, // t
j3 0:6b0161c3e440 136 {0x00,0x3C,0x40,0x40,0x20,0x7C}, // u
j3 0:6b0161c3e440 137 {0x00,0x1C,0x20,0x40,0x20,0x1C}, // v
j3 0:6b0161c3e440 138 {0x00,0x3C,0x40,0x30,0x40,0x3C}, // w
j3 0:6b0161c3e440 139 {0x00,0x44,0x28,0x10,0x28,0x44}, // x
j3 0:6b0161c3e440 140 {0x00,0x0C,0x50,0x50,0x50,0x3C}, // y
j3 0:6b0161c3e440 141 {0x00,0x44,0x64,0x54,0x4C,0x44}, // z
j3 0:6b0161c3e440 142 {0x00,0x00,0x08,0x36,0x41,0x00}, // {
j3 0:6b0161c3e440 143 {0x00,0x00,0x00,0x7F,0x00,0x00}, // |
j3 0:6b0161c3e440 144 {0x00,0x00,0x41,0x36,0x08,0x00}, // }
j3 0:6b0161c3e440 145 {0x00,0x0C,0x02,0x0C,0x10,0x0C} // ~
j3 0:6b0161c3e440 146 };
j3 0:6b0161c3e440 147
j3 0:6b0161c3e440 148
j3 0:6b0161c3e440 149 static uint8_t display_buff[256];
j3 0:6b0161c3e440 150 static uint8_t temp_buff[256];
j3 0:6b0161c3e440 151
j3 0:6b0161c3e440 152 static const uint8_t DISPLAY_BUFF_START = 112;
j3 0:6b0161c3e440 153 static const uint8_t DISPLAY_BUFF_END = 143;
j3 0:6b0161c3e440 154
j3 0:6b0161c3e440 155 static const uint32_t MAX_STRING_LENGTH = 32;
j3 0:6b0161c3e440 156 static char str[MAX_STRING_LENGTH];
j3 0:6b0161c3e440 157
j3 0:6b0161c3e440 158
j3 0:6b0161c3e440 159 //*********************************************************************
j3 0:6b0161c3e440 160 void get_5x7_character(char c, uint8_t *char_buff)
j3 0:6b0161c3e440 161 {
j3 0:6b0161c3e440 162 uint16_t temp_data;
j3 0:6b0161c3e440 163 uint8_t idx, idy;
j3 0:6b0161c3e440 164
j3 0:6b0161c3e440 165 for(idx = 0; idx < 6; idx++)
j3 0:6b0161c3e440 166 {
j3 0:6b0161c3e440 167 //get byte of char from map and flip it, bit 0 becomes bit 7 and so on
j3 0:6b0161c3e440 168 temp_data = (0x00FF & (font_5x7[c - 0x20][idx]));
j3 0:6b0161c3e440 169 for(idy = 0; idy < 8; idy++)
j3 0:6b0161c3e440 170 {
j3 0:6b0161c3e440 171 temp_data = (temp_data | (((temp_data & (1 << idy)) << (15 - (idy*2)))));
j3 0:6b0161c3e440 172 }
j3 0:6b0161c3e440 173 temp_data = ((temp_data >> 8) & 0x00FF);
j3 0:6b0161c3e440 174
j3 0:6b0161c3e440 175 char_buff[idx] = ((uint8_t) temp_data);
j3 0:6b0161c3e440 176 }
j3 0:6b0161c3e440 177 }
j3 0:6b0161c3e440 178
j3 0:6b0161c3e440 179
j3 0:6b0161c3e440 180 //*********************************************************************
j3 0:6b0161c3e440 181 void print_char(Max7219 *p_display, uint8_t position, char c)
j3 0:6b0161c3e440 182 {
j3 0:6b0161c3e440 183 uint8_t idx;
j3 0:6b0161c3e440 184 uint8_t wrap_device;
j3 0:6b0161c3e440 185 uint8_t wrap_idx;
j3 0:6b0161c3e440 186 uint8_t char_buff[6];
j3 0:6b0161c3e440 187 uint8_t device;
j3 0:6b0161c3e440 188 uint8_t display_buff_idx = 0;
j3 0:6b0161c3e440 189
j3 0:6b0161c3e440 190 get_5x7_character(c, char_buff);
j3 0:6b0161c3e440 191
j3 0:6b0161c3e440 192 //get device and device_position
j3 0:6b0161c3e440 193 if(position > 8)
j3 0:6b0161c3e440 194 {
j3 0:6b0161c3e440 195 if(position%8)
j3 0:6b0161c3e440 196 {
j3 0:6b0161c3e440 197 device = ((position/8) + 1);
j3 0:6b0161c3e440 198 position = position%8;
j3 0:6b0161c3e440 199 }
j3 0:6b0161c3e440 200 else
j3 0:6b0161c3e440 201 {
j3 0:6b0161c3e440 202 device = position/8;
j3 0:6b0161c3e440 203 position = 8;
j3 0:6b0161c3e440 204 }
j3 0:6b0161c3e440 205 }
j3 0:6b0161c3e440 206 else
j3 0:6b0161c3e440 207 {
j3 0:6b0161c3e440 208 device = 1;
j3 0:6b0161c3e440 209 }
j3 0:6b0161c3e440 210
j3 0:6b0161c3e440 211 //check for dispaly wrap around
j3 0:6b0161c3e440 212 //(moving to next 8x8 grid cause character doesn't fit on current one)
j3 0:6b0161c3e440 213 if(position > 3)
j3 0:6b0161c3e440 214 {
j3 0:6b0161c3e440 215 wrap_idx = (9 - position);
j3 0:6b0161c3e440 216 if(device < 4)
j3 0:6b0161c3e440 217 {
j3 0:6b0161c3e440 218 wrap_device = (device + 1);
j3 0:6b0161c3e440 219 }
j3 0:6b0161c3e440 220 else
j3 0:6b0161c3e440 221 {
j3 0:6b0161c3e440 222 wrap_device = 1;
j3 0:6b0161c3e440 223 }
j3 0:6b0161c3e440 224 }
j3 0:6b0161c3e440 225 else
j3 0:6b0161c3e440 226 {
j3 0:6b0161c3e440 227 wrap_idx = 6; //make bigger than idx, not used
j3 0:6b0161c3e440 228 wrap_device = 0; //not used
j3 0:6b0161c3e440 229 }
j3 0:6b0161c3e440 230
j3 0:6b0161c3e440 231 //print character to position
j3 0:6b0161c3e440 232 for(idx = 0; idx < 6; idx++)
j3 0:6b0161c3e440 233 {
j3 0:6b0161c3e440 234 //check for wrap
j3 0:6b0161c3e440 235 if(idx >= wrap_idx)
j3 0:6b0161c3e440 236 {
j3 0:6b0161c3e440 237 p_display->write_digit(wrap_device, ((idx - wrap_idx) + 1), char_buff[idx]);
j3 0:6b0161c3e440 238 }
j3 0:6b0161c3e440 239 else
j3 0:6b0161c3e440 240 {
j3 0:6b0161c3e440 241 p_display->write_digit(device, (position + idx), char_buff[idx]);
j3 0:6b0161c3e440 242 }
j3 0:6b0161c3e440 243
j3 0:6b0161c3e440 244 //get index for display buffer, keeps image of display for shifting
j3 0:6b0161c3e440 245 display_buff_idx = (((device - 1) * 8) + (position - 1) + idx + DISPLAY_BUFF_START);
j3 0:6b0161c3e440 246 //wrap buff back around
j3 0:6b0161c3e440 247 if(display_buff_idx > 255)
j3 0:6b0161c3e440 248 {
j3 0:6b0161c3e440 249 display_buff_idx = display_buff_idx - 256;
j3 0:6b0161c3e440 250 }
j3 0:6b0161c3e440 251 display_buff[display_buff_idx] = char_buff[idx];
j3 0:6b0161c3e440 252 }
j3 0:6b0161c3e440 253 }
j3 0:6b0161c3e440 254
j3 0:6b0161c3e440 255
j3 0:6b0161c3e440 256 //*********************************************************************
j3 0:6b0161c3e440 257 void print_string(Max7219 *p_display, uint8_t position, const char *s)
j3 0:6b0161c3e440 258 {
j3 0:6b0161c3e440 259 uint8_t idx = 0;
j3 0:6b0161c3e440 260
j3 0:6b0161c3e440 261 while(s[idx] != '\0')
j3 0:6b0161c3e440 262 {
j3 0:6b0161c3e440 263 print_char(p_display, (position + (idx*6)), s[idx]);
j3 0:6b0161c3e440 264 idx++;
j3 0:6b0161c3e440 265 }
j3 0:6b0161c3e440 266 }
j3 0:6b0161c3e440 267
j3 0:6b0161c3e440 268
j3 0:6b0161c3e440 269 //*********************************************************************
j3 0:6b0161c3e440 270 void shift_display_right(Max7219 *p_display, uint8_t count, uint8_t delay)
j3 0:6b0161c3e440 271 {
j3 0:6b0161c3e440 272 uint16_t idx, idy;
j3 0:6b0161c3e440 273 uint8_t position;
j3 0:6b0161c3e440 274
j3 0:6b0161c3e440 275 for(idx = 0; idx < count; idx++)
j3 0:6b0161c3e440 276 {
j3 0:6b0161c3e440 277 for(idy = 0; idy < 256; idy++)
j3 0:6b0161c3e440 278 {
j3 0:6b0161c3e440 279 if(idy == 255)
j3 0:6b0161c3e440 280 {
j3 0:6b0161c3e440 281 temp_buff[0] = display_buff[idy];
j3 0:6b0161c3e440 282 }
j3 0:6b0161c3e440 283 else
j3 0:6b0161c3e440 284 {
j3 0:6b0161c3e440 285 temp_buff[idy + 1] = display_buff[idy];
j3 0:6b0161c3e440 286 }
j3 0:6b0161c3e440 287 }
j3 0:6b0161c3e440 288
j3 0:6b0161c3e440 289 for(idy = 0; idy < 256; idy++)
j3 0:6b0161c3e440 290 {
j3 0:6b0161c3e440 291 //save shifted display in buffer
j3 0:6b0161c3e440 292 display_buff[idy] = temp_buff[idy];
j3 0:6b0161c3e440 293
j3 0:6b0161c3e440 294 if((idy >= DISPLAY_BUFF_START) && ( idy <= DISPLAY_BUFF_END))
j3 0:6b0161c3e440 295 {
j3 0:6b0161c3e440 296 position = ((idy - DISPLAY_BUFF_START) + 1);
j3 0:6b0161c3e440 297 if(position > 24)
j3 0:6b0161c3e440 298 {
j3 0:6b0161c3e440 299 if(position % 8)
j3 0:6b0161c3e440 300 {
j3 0:6b0161c3e440 301 position = position % 8;
j3 0:6b0161c3e440 302 }
j3 0:6b0161c3e440 303 else
j3 0:6b0161c3e440 304 {
j3 0:6b0161c3e440 305 position = 8;
j3 0:6b0161c3e440 306 }
j3 0:6b0161c3e440 307 p_display->write_digit(4, position, display_buff[idy]);
j3 0:6b0161c3e440 308 }
j3 0:6b0161c3e440 309 else if(position > 16)
j3 0:6b0161c3e440 310 {
j3 0:6b0161c3e440 311 if(position % 8)
j3 0:6b0161c3e440 312 {
j3 0:6b0161c3e440 313 position = position % 8;
j3 0:6b0161c3e440 314 }
j3 0:6b0161c3e440 315 else
j3 0:6b0161c3e440 316 {
j3 0:6b0161c3e440 317 position = 8;
j3 0:6b0161c3e440 318 }
j3 0:6b0161c3e440 319 p_display->write_digit(3, position, display_buff[idy]);
j3 0:6b0161c3e440 320 }
j3 0:6b0161c3e440 321 else if(position > 8)
j3 0:6b0161c3e440 322 {
j3 0:6b0161c3e440 323 if(position % 8)
j3 0:6b0161c3e440 324 {
j3 0:6b0161c3e440 325 position = position % 8;
j3 0:6b0161c3e440 326 }
j3 0:6b0161c3e440 327 else
j3 0:6b0161c3e440 328 {
j3 0:6b0161c3e440 329 position = 8;
j3 0:6b0161c3e440 330 }
j3 0:6b0161c3e440 331 p_display->write_digit(2, position, display_buff[idy]);
j3 0:6b0161c3e440 332 }
j3 0:6b0161c3e440 333 else
j3 0:6b0161c3e440 334 {
j3 0:6b0161c3e440 335 p_display->write_digit(1, position, display_buff[idy]);
j3 0:6b0161c3e440 336 }
j3 0:6b0161c3e440 337 }
j3 0:6b0161c3e440 338 }
j3 0:6b0161c3e440 339
j3 0:6b0161c3e440 340 wait_ms(delay);
j3 0:6b0161c3e440 341 }
j3 0:6b0161c3e440 342 }
j3 0:6b0161c3e440 343
j3 0:6b0161c3e440 344
j3 0:6b0161c3e440 345 void shift_display_left(Max7219 *p_display, uint8_t count, uint8_t delay)
j3 0:6b0161c3e440 346 {
j3 0:6b0161c3e440 347 uint16_t idx, idy;
j3 0:6b0161c3e440 348 uint8_t position;
j3 0:6b0161c3e440 349
j3 0:6b0161c3e440 350 for(idx = 0; idx < count; idx++)
j3 0:6b0161c3e440 351 {
j3 0:6b0161c3e440 352 for(idy = 0; idy < 256; idy++)
j3 0:6b0161c3e440 353 {
j3 0:6b0161c3e440 354 if(idy == 0)
j3 0:6b0161c3e440 355 {
j3 0:6b0161c3e440 356 temp_buff[255] = display_buff[idy];
j3 0:6b0161c3e440 357 }
j3 0:6b0161c3e440 358 else
j3 0:6b0161c3e440 359 {
j3 0:6b0161c3e440 360 temp_buff[idy - 1] = display_buff[idy];
j3 0:6b0161c3e440 361 }
j3 0:6b0161c3e440 362 }
j3 0:6b0161c3e440 363
j3 0:6b0161c3e440 364 for(idy = 0; idy < 256; idy++)
j3 0:6b0161c3e440 365 {
j3 0:6b0161c3e440 366 //save shifted display in buffer
j3 0:6b0161c3e440 367 display_buff[idy] = temp_buff[idy];
j3 0:6b0161c3e440 368
j3 0:6b0161c3e440 369 if((idy >= DISPLAY_BUFF_START) && ( idy <= DISPLAY_BUFF_END))
j3 0:6b0161c3e440 370 {
j3 0:6b0161c3e440 371 position = ((idy - DISPLAY_BUFF_START) + 1);
j3 0:6b0161c3e440 372 if(position > 24)
j3 0:6b0161c3e440 373 {
j3 0:6b0161c3e440 374 if(position % 8)
j3 0:6b0161c3e440 375 {
j3 0:6b0161c3e440 376 position = position % 8;
j3 0:6b0161c3e440 377 }
j3 0:6b0161c3e440 378 else
j3 0:6b0161c3e440 379 {
j3 0:6b0161c3e440 380 position = 8;
j3 0:6b0161c3e440 381 }
j3 0:6b0161c3e440 382 p_display->write_digit(4, position, display_buff[idy]);
j3 0:6b0161c3e440 383 }
j3 0:6b0161c3e440 384 else if(position > 16)
j3 0:6b0161c3e440 385 {
j3 0:6b0161c3e440 386 if(position % 8)
j3 0:6b0161c3e440 387 {
j3 0:6b0161c3e440 388 position = position % 8;
j3 0:6b0161c3e440 389 }
j3 0:6b0161c3e440 390 else
j3 0:6b0161c3e440 391 {
j3 0:6b0161c3e440 392 position = 8;
j3 0:6b0161c3e440 393 }
j3 0:6b0161c3e440 394 p_display->write_digit(3, position, display_buff[idy]);
j3 0:6b0161c3e440 395 }
j3 0:6b0161c3e440 396 else if(position > 8)
j3 0:6b0161c3e440 397 {
j3 0:6b0161c3e440 398 if(position % 8)
j3 0:6b0161c3e440 399 {
j3 0:6b0161c3e440 400 position = position % 8;
j3 0:6b0161c3e440 401 }
j3 0:6b0161c3e440 402 else
j3 0:6b0161c3e440 403 {
j3 0:6b0161c3e440 404 position = 8;
j3 0:6b0161c3e440 405 }
j3 0:6b0161c3e440 406 p_display->write_digit(2, position, display_buff[idy]);
j3 0:6b0161c3e440 407 }
j3 0:6b0161c3e440 408 else
j3 0:6b0161c3e440 409 {
j3 0:6b0161c3e440 410 p_display->write_digit(1, position, display_buff[idy]);
j3 0:6b0161c3e440 411 }
j3 0:6b0161c3e440 412 }
j3 0:6b0161c3e440 413 }
j3 0:6b0161c3e440 414
j3 0:6b0161c3e440 415 wait_ms(delay);
j3 0:6b0161c3e440 416 }
j3 0:6b0161c3e440 417 }
j3 0:6b0161c3e440 418
j3 0:6b0161c3e440 419
j3 0:6b0161c3e440 420 //*********************************************************************
j3 0:6b0161c3e440 421 void quad_all_on(Max7219 *p_display, uint8_t quad)
j3 0:6b0161c3e440 422 {
j3 0:6b0161c3e440 423 if(quad > 1)
j3 0:6b0161c3e440 424 {
j3 0:6b0161c3e440 425 for(uint8_t idx = 0; idx < 8; idx++)
j3 0:6b0161c3e440 426 {
j3 0:6b0161c3e440 427 display_buff[((quad - 1)*8) + DISPLAY_BUFF_START + idx] = 0xFF;
j3 0:6b0161c3e440 428 }
j3 0:6b0161c3e440 429 }
j3 0:6b0161c3e440 430 else
j3 0:6b0161c3e440 431 {
j3 0:6b0161c3e440 432 for(uint8_t idx = 0; idx < 8; idx++)
j3 0:6b0161c3e440 433 {
j3 0:6b0161c3e440 434 display_buff[idx + DISPLAY_BUFF_START] = 0xFF;
j3 0:6b0161c3e440 435 }
j3 0:6b0161c3e440 436 }
j3 0:6b0161c3e440 437
j3 0:6b0161c3e440 438 p_display->device_all_on(quad);
j3 0:6b0161c3e440 439 }
j3 0:6b0161c3e440 440
j3 0:6b0161c3e440 441
j3 0:6b0161c3e440 442 //*********************************************************************
j3 0:6b0161c3e440 443 void quad_all_off(Max7219 *p_display, uint8_t quad)
j3 0:6b0161c3e440 444 {
j3 0:6b0161c3e440 445 if(quad > 1)
j3 0:6b0161c3e440 446 {
j3 0:6b0161c3e440 447 for(uint8_t idx = 0; idx < 8; idx++)
j3 0:6b0161c3e440 448 {
j3 0:6b0161c3e440 449 display_buff[((quad - 1)*8) + DISPLAY_BUFF_START + idx] = 0;
j3 0:6b0161c3e440 450 }
j3 0:6b0161c3e440 451 }
j3 0:6b0161c3e440 452 else
j3 0:6b0161c3e440 453 {
j3 0:6b0161c3e440 454 for(uint8_t idx = 0; idx < 8; idx++)
j3 0:6b0161c3e440 455 {
j3 0:6b0161c3e440 456 display_buff[idx + DISPLAY_BUFF_START] = 0;
j3 0:6b0161c3e440 457 }
j3 0:6b0161c3e440 458 }
j3 0:6b0161c3e440 459
j3 0:6b0161c3e440 460 p_display->device_all_off(quad);
j3 0:6b0161c3e440 461 }
j3 0:6b0161c3e440 462
j3 0:6b0161c3e440 463
j3 0:6b0161c3e440 464 //*********************************************************************
j3 0:6b0161c3e440 465 void all_on(Max7219 *p_display)
j3 0:6b0161c3e440 466 {
j3 0:6b0161c3e440 467 for(uint16_t idx = 0; idx < 256; idx++)
j3 0:6b0161c3e440 468 {
j3 0:6b0161c3e440 469 display_buff[idx] = 0xFF;
j3 0:6b0161c3e440 470 }
j3 0:6b0161c3e440 471
j3 0:6b0161c3e440 472 p_display->display_all_on();
j3 0:6b0161c3e440 473 }
j3 0:6b0161c3e440 474
j3 0:6b0161c3e440 475
j3 0:6b0161c3e440 476 //*********************************************************************
j3 0:6b0161c3e440 477 void all_off(Max7219 *p_display)
j3 0:6b0161c3e440 478 {
j3 0:6b0161c3e440 479 for(uint16_t idx = 0; idx < 256; idx++)
j3 0:6b0161c3e440 480 {
j3 0:6b0161c3e440 481 display_buff[idx] = 0;
j3 0:6b0161c3e440 482 }
j3 0:6b0161c3e440 483
j3 0:6b0161c3e440 484 p_display->display_all_off();
j3 0:6b0161c3e440 485 }
j3 0:6b0161c3e440 486
j3 0:6b0161c3e440 487
j3 0:6b0161c3e440 488 //*********************************************************************
j3 0:6b0161c3e440 489 void demo(Max7219 *display, max7219_configuration_t display_config, bool endless_loop)
j3 0:6b0161c3e440 490 {
j3 0:6b0161c3e440 491 uint8_t position = 1;
j3 0:6b0161c3e440 492 uint8_t idx = 0;
j3 0:6b0161c3e440 493
j3 0:6b0161c3e440 494 do
j3 0:6b0161c3e440 495 {
j3 0:6b0161c3e440 496 all_off(display);
j3 0:6b0161c3e440 497
j3 0:6b0161c3e440 498 if(position > 25)
j3 0:6b0161c3e440 499 {
j3 0:6b0161c3e440 500 position = 1;
j3 0:6b0161c3e440 501 }
j3 0:6b0161c3e440 502 printf("\nPosition = %d\n", position);
j3 0:6b0161c3e440 503
j3 0:6b0161c3e440 504 for(idx = 0x20; idx < 0x7F; idx++)
j3 0:6b0161c3e440 505 {
j3 0:6b0161c3e440 506 print_char(display, position, (char) idx);
j3 0:6b0161c3e440 507 wait(0.25);
j3 0:6b0161c3e440 508 }
j3 0:6b0161c3e440 509 position = (position + 8);
j3 0:6b0161c3e440 510
j3 0:6b0161c3e440 511 all_on(display);
j3 0:6b0161c3e440 512
j3 0:6b0161c3e440 513 for(idx = 0; idx < 16; idx++)
j3 0:6b0161c3e440 514 {
j3 0:6b0161c3e440 515 display_config.intensity = 15 - idx;
j3 0:6b0161c3e440 516 display->init_display(display_config);
j3 0:6b0161c3e440 517 wait_ms(50);
j3 0:6b0161c3e440 518 }
j3 0:6b0161c3e440 519
j3 0:6b0161c3e440 520 for(idx = 0; idx < 16; idx++)
j3 0:6b0161c3e440 521 {
j3 0:6b0161c3e440 522 display_config.intensity = idx;
j3 0:6b0161c3e440 523 display->init_display(display_config);
j3 0:6b0161c3e440 524 wait_ms(100);
j3 0:6b0161c3e440 525 }
j3 0:6b0161c3e440 526
j3 0:6b0161c3e440 527 wait_ms(100);
j3 0:6b0161c3e440 528 all_off(display);
j3 0:6b0161c3e440 529 wait_ms(100);
j3 0:6b0161c3e440 530
j3 0:6b0161c3e440 531 quad_all_on(display, 1);
j3 0:6b0161c3e440 532 wait_ms(500);
j3 0:6b0161c3e440 533 shift_display_right(display, 32, 100);
j3 0:6b0161c3e440 534 shift_display_left(display, 32, 100);
j3 0:6b0161c3e440 535 all_off(display);
j3 0:6b0161c3e440 536 wait_ms(100);
j3 0:6b0161c3e440 537
j3 0:6b0161c3e440 538 print_string(display, 1, "Maxim");
j3 0:6b0161c3e440 539 wait_ms(100);
j3 0:6b0161c3e440 540 shift_display_right(display, 32, 100);
j3 0:6b0161c3e440 541 shift_display_left(display, 32, 100);
j3 0:6b0161c3e440 542 wait_ms(100);
j3 0:6b0161c3e440 543 }
j3 0:6b0161c3e440 544 while(endless_loop);
j3 0:6b0161c3e440 545 }
j3 0:6b0161c3e440 546
j3 0:6b0161c3e440 547
j3 0:6b0161c3e440 548 //*********************************************************************
j3 0:6b0161c3e440 549 void endless_scroll_display(Max7219 *display, uint32_t scroll_right)
j3 0:6b0161c3e440 550 {
j3 0:6b0161c3e440 551 if(scroll_right)
j3 0:6b0161c3e440 552 {
j3 0:6b0161c3e440 553 printf("\nScrolling Right\n");
j3 0:6b0161c3e440 554 while(1)
j3 0:6b0161c3e440 555 {
j3 0:6b0161c3e440 556 shift_display_right(display, 1, 100);
j3 0:6b0161c3e440 557 }
j3 0:6b0161c3e440 558 }
j3 0:6b0161c3e440 559 else
j3 0:6b0161c3e440 560 {
j3 0:6b0161c3e440 561 printf("\nScrolling Left\n");
j3 0:6b0161c3e440 562 while(1)
j3 0:6b0161c3e440 563 {
j3 0:6b0161c3e440 564 shift_display_left(display, 1, 100);
j3 0:6b0161c3e440 565 }
j3 0:6b0161c3e440 566 }
j3 0:6b0161c3e440 567 }
j3 0:6b0161c3e440 568
j3 0:6b0161c3e440 569
j3 0:6b0161c3e440 570 //*********************************************************************
j3 0:6b0161c3e440 571 uint32_t print_menu(void)
j3 0:6b0161c3e440 572 {
j3 0:6b0161c3e440 573 uint32_t user_input;
j3 0:6b0161c3e440 574
j3 0:6b0161c3e440 575 printf("\nPlease select an option below:\n");
j3 0:6b0161c3e440 576 printf("%t1. Set Brightness\n");
j3 0:6b0161c3e440 577 printf("%t2. Print a characther to given position\n");
j3 0:6b0161c3e440 578 printf("%t3. Print a string to position\n");//TODO fix this case
j3 0:6b0161c3e440 579 printf("%t4. Shift display given number of position and direction\n"); //TODO fix this case
j3 0:6b0161c3e440 580 printf("%t5. Clear display\n");
j3 0:6b0161c3e440 581 printf("%t6. Run the Demo Rotuine\n");
j3 0:6b0161c3e440 582 printf("%t7. Run the Demo Rotuine In Endless Loop\n");
j3 0:6b0161c3e440 583 printf("%t8. Scroll Display In Endless Loop, left or right\n");
j3 0:6b0161c3e440 584 printf("%t9. Quit\n\n");
j3 0:6b0161c3e440 585
j3 0:6b0161c3e440 586 user_input = get_user_input(NULL, 9);
j3 0:6b0161c3e440 587
j3 0:6b0161c3e440 588 return(user_input);
j3 0:6b0161c3e440 589 }
j3 0:6b0161c3e440 590
j3 0:6b0161c3e440 591
j3 0:6b0161c3e440 592 //*********************************************************************
j3 0:6b0161c3e440 593 uint32_t get_user_input(char *msg, uint32_t max_val)
j3 0:6b0161c3e440 594 {
j3 0:6b0161c3e440 595 uint32_t user_input;
j3 0:6b0161c3e440 596
j3 0:6b0161c3e440 597 do
j3 0:6b0161c3e440 598 {
j3 0:6b0161c3e440 599 printf(msg);
j3 0:6b0161c3e440 600
j3 0:6b0161c3e440 601 //get user input
j3 0:6b0161c3e440 602 fgets(str, MAX_STRING_LENGTH, stdin);
j3 0:6b0161c3e440 603
j3 0:6b0161c3e440 604 //Remove trailing newline and CR, if there.
j3 0:6b0161c3e440 605 if((strlen(str) > 0 ) && (str[strlen(str) - 1] == 0x0A) && (str[strlen(str) - 2] == 0x0D))
j3 0:6b0161c3e440 606 {
j3 0:6b0161c3e440 607 str[strlen(str) - 1] = '\0';
j3 0:6b0161c3e440 608 str[strlen(str) - 1] = '\0';
j3 0:6b0161c3e440 609 }
j3 0:6b0161c3e440 610
j3 0:6b0161c3e440 611 user_input = strtoul(str, NULL, 0);
j3 0:6b0161c3e440 612
j3 0:6b0161c3e440 613 printf("\nYou entered = %d\n", user_input);
j3 0:6b0161c3e440 614
j3 0:6b0161c3e440 615 if(user_input > max_val)
j3 0:6b0161c3e440 616 {
j3 0:6b0161c3e440 617 printf("\nOut of range\n");
j3 0:6b0161c3e440 618 }
j3 0:6b0161c3e440 619
j3 0:6b0161c3e440 620 }
j3 0:6b0161c3e440 621 while(user_input > max_val);
j3 0:6b0161c3e440 622
j3 0:6b0161c3e440 623 return(user_input);
j3 0:6b0161c3e440 624 }
j3 0:6b0161c3e440 625
j3 0:6b0161c3e440 626
j3 0:6b0161c3e440 627 //*********************************************************************
j3 0:6b0161c3e440 628 char get_user_char(char *msg)
j3 0:6b0161c3e440 629 {
j3 0:6b0161c3e440 630
j3 0:6b0161c3e440 631 do
j3 0:6b0161c3e440 632 {
j3 0:6b0161c3e440 633 printf(msg);
j3 0:6b0161c3e440 634
j3 0:6b0161c3e440 635 //get user input
j3 0:6b0161c3e440 636 fgets(str, 2, stdin);
j3 0:6b0161c3e440 637
j3 0:6b0161c3e440 638 //Remove trailing newline and CR, if there.
j3 0:6b0161c3e440 639 if((strlen(str) > 0 ) && (str[strlen(str) - 1] == 0x0A) && (str[strlen(str) - 2] == 0x0D))
j3 0:6b0161c3e440 640 {
j3 0:6b0161c3e440 641 str[strlen(str) - 1] = '\0';
j3 0:6b0161c3e440 642 str[strlen(str) - 1] = '\0';
j3 0:6b0161c3e440 643 }
j3 0:6b0161c3e440 644
j3 0:6b0161c3e440 645 printf("\nYou entered = %c\n", str[0]);
j3 0:6b0161c3e440 646
j3 0:6b0161c3e440 647 if((str[0] < 0x20) || (str[0] > 0x7E))
j3 0:6b0161c3e440 648 {
j3 0:6b0161c3e440 649 printf("\nOut of range\n");
j3 0:6b0161c3e440 650 }
j3 0:6b0161c3e440 651 }
j3 0:6b0161c3e440 652 while((str[0] < 0x20) || (str[0] > 0x7E));
j3 0:6b0161c3e440 653
j3 0:6b0161c3e440 654 return(str[0]);
j3 0:6b0161c3e440 655 }
j3 0:6b0161c3e440 656
j3 0:6b0161c3e440 657
j3 0:6b0161c3e440 658 //*********************************************************************
j3 0:6b0161c3e440 659 char * get_user_string(char *msg)
j3 0:6b0161c3e440 660 {
j3 0:6b0161c3e440 661 printf(msg);
j3 0:6b0161c3e440 662 //get user input
j3 0:6b0161c3e440 663 fgets(str, MAX_STRING_LENGTH, stdin);
j3 0:6b0161c3e440 664 //Remove trailing newline and CR, if there.
j3 0:6b0161c3e440 665 if((strlen(str) > 0 ) && (str[strlen(str) - 1] == 0x0A) && (str[strlen(str) - 2] == 0x0D))
j3 0:6b0161c3e440 666 {
j3 0:6b0161c3e440 667 str[strlen(str) - 1] = '\0';
j3 0:6b0161c3e440 668 str[strlen(str) - 1] = '\0';
j3 0:6b0161c3e440 669 }
j3 0:6b0161c3e440 670
j3 0:6b0161c3e440 671 return(str);
j3 0:6b0161c3e440 672 }
j3 0:6b0161c3e440 673