Thu, 06 Apr 2023 20:53:06 +0200
Set the new measured deep sleep current consumption. This is half of the Wemos D1 system.
1
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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1 | /* |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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2 | * Copyright (c) 2016 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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3 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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4 | * Redistribution and use in source and binary forms, with or without |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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5 | * modification, are permitted provided that the following conditions are met: |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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6 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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7 | * 1. Redistributions of source code must retain the above copyright notice, |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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8 | * this list of conditions and the following disclaimer. |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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9 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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10 | * this list of conditions and the following disclaimer in the documentation |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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11 | * and/or other materials provided with the distribution. |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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12 | * 3. Neither the name of the copyright holder nor the names of itscontributors |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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13 | * may be used to endorse or promote products derived from this software without |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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14 | * specific prior written permission. |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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15 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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19 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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22 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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23 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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25 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
1c9894662795
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26 | */ |
1c9894662795
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27 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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28 | /** |
1c9894662795
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29 | * @file hd44780.c |
1c9894662795
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30 | * |
1c9894662795
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31 | * ESP-IDF driver for HD44780 compatible LCD text displays |
1c9894662795
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32 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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33 | * Ported from esp-open-rtos |
1c9894662795
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34 | * |
1c9894662795
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35 | * Copyright (c) 2016 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
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36 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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37 | * BSD Licensed as described in the file LICENSE |
1c9894662795
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38 | */ |
1c9894662795
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39 | #include <string.h> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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40 | #include <esp_system.h> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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41 | #include <esp_idf_lib_helpers.h> |
1c9894662795
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42 | #include <ets_sys.h> |
1c9894662795
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43 | #include "hd44780.h" |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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44 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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45 | #define MS 1000 |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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46 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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47 | #define BV(x) (1 << (x)) |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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48 | #define GPIO_BIT(x) (1ULL << (x)) |
1c9894662795
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49 | |
1c9894662795
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50 | #define DELAY_CMD_LONG (3 * MS) // >1.53ms according to datasheet |
1c9894662795
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51 | #define DELAY_CMD_SHORT (60) // >39us according to datasheet |
1c9894662795
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52 | #define DELAY_TOGGLE (1) // E cycle time >= 1μs, E pulse width >= 450ns, Data set-up time >= 195ns |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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53 | #define DELAY_INIT (5 * MS) |
1c9894662795
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54 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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55 | #define CMD_CLEAR 0x01 |
1c9894662795
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56 | #define CMD_RETURN_HOME 0x02 |
1c9894662795
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57 | #define CMD_ENTRY_MODE 0x04 |
1c9894662795
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58 | #define CMD_DISPLAY_CTRL 0x08 |
1c9894662795
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59 | #define CMD_SHIFT 0x10 |
1c9894662795
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60 | #define CMD_FUNC_SET 0x20 |
1c9894662795
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61 | #define CMD_CGRAM_ADDR 0x40 |
1c9894662795
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62 | #define CMD_DDRAM_ADDR 0x80 |
1c9894662795
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63 | |
1c9894662795
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64 | #define ARG_MOVE_RIGHT 0x04 |
1c9894662795
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65 | #define ARG_MOVE_LEFT 0x00 |
1c9894662795
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66 | #define CMD_SHIFT_LEFT (CMD_SHIFT | CMD_DISPLAY_CTRL | ARG_MOVE_LEFT) |
1c9894662795
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67 | #define CMD_SHIFT_RIGHT (CMD_SHIFT | CMD_DISPLAY_CTRL | ARG_MOVE_RIGHT) |
1c9894662795
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68 | |
1c9894662795
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69 | // CMD_ENTRY_MODE |
1c9894662795
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70 | #define ARG_EM_INCREMENT BV(1) |
1c9894662795
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71 | #define ARG_EM_SHIFT (1) |
1c9894662795
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72 | |
1c9894662795
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73 | // CMD_DISPLAY_CTRL |
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74 | #define ARG_DC_DISPLAY_ON BV(2) |
1c9894662795
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75 | #define ARG_DC_CURSOR_ON BV(1) |
1c9894662795
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76 | #define ARG_DC_CURSOR_BLINK (1) |
1c9894662795
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77 | |
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78 | // CMD_FUNC_SET |
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79 | #define ARG_FS_8_BIT BV(4) |
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80 | #define ARG_FS_2_LINES BV(3) |
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81 | #define ARG_FS_FONT_5X10 BV(2) |
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82 | |
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83 | #define init_delay() do { ets_delay_us(DELAY_INIT); } while (0) |
1c9894662795
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84 | #define short_delay() do { ets_delay_us(DELAY_CMD_SHORT); } while (0) |
1c9894662795
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85 | #define long_delay() do { ets_delay_us(DELAY_CMD_LONG); } while (0) |
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86 | #define toggle_delay() do { ets_delay_us(DELAY_TOGGLE); } while (0) |
1c9894662795
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87 | |
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88 | #define CHECK_ARG(VAL) do { if (!(VAL)) return ESP_ERR_INVALID_ARG; } while (0) |
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89 | #define CHECK(x) do { esp_err_t __; if ((__ = x) != ESP_OK) return __; } while (0) |
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90 | |
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91 | static const uint8_t line_addr[] = { 0x00, 0x40, 0x14, 0x54 }; |
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92 | |
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93 | static esp_err_t write_nibble(const hd44780_t *lcd, uint8_t b, bool rs) |
1c9894662795
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94 | { |
1c9894662795
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95 | if (lcd->write_cb) |
1c9894662795
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96 | { |
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97 | uint8_t data = (((b >> 3) & 1) << lcd->pins.d7) |
1c9894662795
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98 | | (((b >> 2) & 1) << lcd->pins.d6) |
1c9894662795
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99 | | (((b >> 1) & 1) << lcd->pins.d5) |
1c9894662795
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100 | | ((b & 1) << lcd->pins.d4) |
1c9894662795
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101 | | (rs ? 1 << lcd->pins.rs : 0) |
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102 | | (lcd->backlight ? 1 << lcd->pins.bl : 0); |
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103 | CHECK(lcd->write_cb(lcd, data | (1 << lcd->pins.e))); |
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104 | toggle_delay(); |
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105 | CHECK(lcd->write_cb(lcd, data)); |
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106 | } |
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107 | else |
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108 | { |
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109 | CHECK(gpio_set_level(lcd->pins.rs, rs)); |
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110 | ets_delay_us(1); // Address Setup time >= 60ns. |
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111 | CHECK(gpio_set_level(lcd->pins.e, true)); |
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112 | CHECK(gpio_set_level(lcd->pins.d7, (b >> 3) & 1)); |
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113 | CHECK(gpio_set_level(lcd->pins.d6, (b >> 2) & 1)); |
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114 | CHECK(gpio_set_level(lcd->pins.d5, (b >> 1) & 1)); |
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115 | CHECK(gpio_set_level(lcd->pins.d4, b & 1)); |
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116 | toggle_delay(); |
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117 | CHECK(gpio_set_level(lcd->pins.e, false)); |
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118 | } |
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119 | |
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120 | return ESP_OK; |
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121 | } |
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122 | |
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123 | static esp_err_t write_byte(const hd44780_t *lcd, uint8_t b, bool rs) |
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124 | { |
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125 | CHECK(write_nibble(lcd, b >> 4, rs)); |
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126 | CHECK(write_nibble(lcd, b, rs)); |
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127 | |
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128 | return ESP_OK; |
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129 | } |
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130 | |
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131 | esp_err_t hd44780_init(const hd44780_t *lcd) |
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132 | { |
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133 | CHECK_ARG(lcd && lcd->lines > 0 && lcd->lines < 5); |
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134 | |
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135 | if (!lcd->write_cb) |
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136 | { |
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137 | gpio_config_t io_conf; |
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138 | memset(&io_conf, 0, sizeof(gpio_config_t)); |
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139 | io_conf.mode = GPIO_MODE_OUTPUT; |
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140 | io_conf.pin_bit_mask = |
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141 | GPIO_BIT(lcd->pins.rs) | |
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142 | GPIO_BIT(lcd->pins.e) | |
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143 | GPIO_BIT(lcd->pins.d4) | |
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144 | GPIO_BIT(lcd->pins.d5) | |
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145 | GPIO_BIT(lcd->pins.d6) | |
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146 | GPIO_BIT(lcd->pins.d7); |
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147 | if (lcd->pins.bl != HD44780_NOT_USED) |
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148 | io_conf.pin_bit_mask |= GPIO_BIT(lcd->pins.bl); |
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149 | CHECK(gpio_config(&io_conf)); |
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150 | } |
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151 | |
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152 | // switch to 4 bit mode |
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153 | for (uint8_t i = 0; i < 3; i ++) |
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154 | { |
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155 | CHECK(write_nibble(lcd, (CMD_FUNC_SET | ARG_FS_8_BIT) >> 4, false)); |
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156 | init_delay(); |
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157 | } |
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158 | CHECK(write_nibble(lcd, CMD_FUNC_SET >> 4, false)); |
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159 | short_delay(); |
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160 | |
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161 | // Specify the number of display lines and character font |
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162 | CHECK(write_byte(lcd, |
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163 | CMD_FUNC_SET |
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164 | | (lcd->lines > 1 ? ARG_FS_2_LINES : 0) |
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165 | | (lcd->font == HD44780_FONT_5X10 ? ARG_FS_FONT_5X10 : 0), |
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166 | false)); |
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167 | short_delay(); |
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168 | // Display off |
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169 | CHECK(hd44780_control(lcd, false, false, false)); |
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170 | // Clear |
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171 | CHECK(hd44780_clear(lcd)); |
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172 | // Entry mode set |
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173 | CHECK(write_byte(lcd, CMD_ENTRY_MODE | ARG_EM_INCREMENT, false)); |
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174 | short_delay(); |
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175 | // Display on |
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176 | CHECK(hd44780_control(lcd, true, false, false)); |
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177 | |
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178 | return ESP_OK; |
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179 | } |
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180 | |
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181 | esp_err_t hd44780_control(const hd44780_t *lcd, bool on, bool cursor, bool cursor_blink) |
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182 | { |
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183 | CHECK_ARG(lcd); |
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184 | |
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185 | CHECK(write_byte(lcd, |
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186 | CMD_DISPLAY_CTRL |
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187 | | (on ? ARG_DC_DISPLAY_ON : 0) |
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188 | | (cursor ? ARG_DC_CURSOR_ON : 0) |
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189 | | (cursor_blink ? ARG_DC_CURSOR_BLINK : 0), |
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190 | false)); |
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191 | short_delay(); |
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192 | |
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193 | return ESP_OK; |
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194 | } |
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195 | |
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196 | esp_err_t hd44780_clear(const hd44780_t *lcd) |
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197 | { |
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198 | CHECK_ARG(lcd); |
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199 | |
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200 | CHECK(write_byte(lcd, CMD_CLEAR, false)); |
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201 | long_delay(); |
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202 | |
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203 | return ESP_OK; |
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204 | } |
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205 | |
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206 | esp_err_t hd44780_gotoxy(const hd44780_t *lcd, uint8_t col, uint8_t line) |
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207 | { |
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208 | CHECK_ARG(lcd && line < lcd->lines && line < sizeof(line_addr)); |
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209 | |
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210 | CHECK(write_byte(lcd, CMD_DDRAM_ADDR + line_addr[line] + col, false)); |
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211 | short_delay(); |
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212 | |
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213 | return ESP_OK; |
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214 | } |
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215 | |
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216 | esp_err_t hd44780_putc(const hd44780_t *lcd, char c) |
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217 | { |
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218 | CHECK_ARG(lcd); |
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219 | |
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220 | CHECK(write_byte(lcd, c, true)); |
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221 | short_delay(); |
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222 | |
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223 | return ESP_OK; |
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224 | } |
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225 | |
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226 | esp_err_t hd44780_puts(const hd44780_t *lcd, const char *s) |
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227 | { |
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228 | CHECK_ARG(lcd && s); |
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229 | |
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230 | while (*s) |
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231 | { |
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232 | CHECK(hd44780_putc(lcd, *s)); |
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233 | s++; |
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234 | } |
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235 | |
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236 | return ESP_OK; |
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237 | } |
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238 | |
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239 | esp_err_t hd44780_switch_backlight(hd44780_t *lcd, bool on) |
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240 | { |
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241 | CHECK_ARG(lcd); |
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242 | if (lcd->pins.bl == HD44780_NOT_USED) |
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243 | return ESP_ERR_NOT_SUPPORTED; |
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244 | |
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245 | if (!lcd->write_cb) |
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246 | CHECK(gpio_set_level(lcd->pins.bl, on)); |
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247 | else |
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248 | CHECK(lcd->write_cb(lcd, on ? BV(lcd->pins.bl) : 0)); |
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249 | |
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250 | lcd->backlight = on; |
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251 | |
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252 | return ESP_OK; |
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253 | } |
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254 | |
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255 | esp_err_t hd44780_upload_character(const hd44780_t *lcd, uint8_t num, const uint8_t *data) |
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256 | { |
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257 | CHECK_ARG(lcd && data && num < 8); |
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258 | |
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259 | uint8_t bytes = lcd->font == HD44780_FONT_5X8 ? 8 : 10; |
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260 | CHECK(write_byte(lcd, CMD_CGRAM_ADDR + num * bytes, false)); |
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261 | short_delay(); |
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262 | for (uint8_t i = 0; i < bytes; i ++) |
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263 | { |
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264 | CHECK(write_byte(lcd, data[i], true)); |
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265 | short_delay(); |
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266 | } |
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267 | |
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268 | CHECK(hd44780_gotoxy(lcd, 0, 0)); |
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269 | |
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270 | return ESP_OK; |
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271 | } |
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272 | |
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273 | esp_err_t hd44780_scroll_left(const hd44780_t *lcd) |
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274 | { |
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275 | CHECK_ARG(lcd); |
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276 | |
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277 | CHECK(write_byte(lcd, CMD_SHIFT_LEFT, false)); |
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278 | short_delay(); |
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279 | |
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280 | return ESP_OK; |
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281 | } |
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282 | |
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283 | esp_err_t hd44780_scroll_right(const hd44780_t *lcd) |
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284 | { |
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285 | CHECK_ARG(lcd); |
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286 | |
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287 | CHECK(write_byte(lcd, CMD_SHIFT_RIGHT, false)); |
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288 | short_delay(); |
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289 | |
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290 | return ESP_OK; |
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291 | } |