Thu, 06 Apr 2023 20:53:06 +0200
Set the new measured deep sleep current consumption. This is half of the Wemos D1 system.
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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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1 | /* |
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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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>
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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>
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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.
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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
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28 | /** |
1c9894662795
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29 | * @file mcp4725.c |
1c9894662795
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30 | * |
1c9894662795
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31 | * ESP-IDF Driver for 12-bit DAC MCP4725 |
1c9894662795
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32 | * |
1c9894662795
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33 | * Ported from esp-open-rtos |
1c9894662795
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34 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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35 | * Copyright (c) 2016, 2019 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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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
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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38 | */ |
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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39 | |
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_log.h> |
1c9894662795
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41 | #include <esp_idf_lib_helpers.h> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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42 | #include "mcp4725.h" |
1c9894662795
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43 | |
1c9894662795
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44 | static const char *TAG = "mcp4725"; |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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45 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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46 | #define I2C_FREQ_HZ 1000000 // Max 1MHz for esp-idf, but device supports up to 3.4Mhz |
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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47 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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48 | #define CMD_DAC 0x40 |
1c9894662795
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49 | #define CMD_EEPROM 0x60 |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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50 | #define BIT_READY 0x80 |
1c9894662795
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51 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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52 | #define CHECK(x) do { esp_err_t __; if ((__ = x) != ESP_OK) return __; } while (0) |
1c9894662795
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53 | #define CHECK_ARG(VAL) do { if (!(VAL)) return ESP_ERR_INVALID_ARG; } while (0) |
1c9894662795
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54 | |
1c9894662795
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55 | static esp_err_t read_data(i2c_dev_t *dev, void *data, uint8_t size) |
1c9894662795
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56 | { |
1c9894662795
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57 | I2C_DEV_TAKE_MUTEX(dev); |
1c9894662795
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58 | I2C_DEV_CHECK(dev, i2c_dev_read(dev, NULL, 0, data, size)); |
1c9894662795
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59 | I2C_DEV_GIVE_MUTEX(dev); |
1c9894662795
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60 | |
1c9894662795
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61 | return ESP_OK; |
1c9894662795
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62 | } |
1c9894662795
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63 | |
1c9894662795
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64 | esp_err_t mcp4725_init_desc(i2c_dev_t *dev, uint8_t addr, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio) |
1c9894662795
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65 | { |
1c9894662795
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66 | CHECK_ARG(dev); |
1c9894662795
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67 | if (addr < MCP4725A0_I2C_ADDR0 || addr > MCP4725A2_I2C_ADDR1) |
1c9894662795
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68 | { |
1c9894662795
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69 | ESP_LOGE(TAG, "Invalid device address: 0x%02x", addr); |
1c9894662795
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70 | return ESP_ERR_INVALID_ARG; |
1c9894662795
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71 | } |
1c9894662795
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72 | |
1c9894662795
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73 | dev->port = port; |
1c9894662795
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74 | dev->addr = addr; |
1c9894662795
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75 | dev->cfg.sda_io_num = sda_gpio; |
1c9894662795
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76 | dev->cfg.scl_io_num = scl_gpio; |
1c9894662795
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77 | #if HELPER_TARGET_IS_ESP32 |
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78 | dev->cfg.master.clk_speed = I2C_FREQ_HZ; |
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79 | #endif |
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80 | |
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81 | return i2c_dev_create_mutex(dev); |
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82 | } |
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83 | |
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84 | esp_err_t mcp4725_free_desc(i2c_dev_t *dev) |
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85 | { |
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86 | CHECK_ARG(dev); |
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87 | |
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88 | return i2c_dev_delete_mutex(dev); |
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89 | } |
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90 | |
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91 | esp_err_t mcp4725_eeprom_busy(i2c_dev_t *dev, bool *busy) |
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92 | { |
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93 | CHECK_ARG(dev && busy); |
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94 | |
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95 | uint8_t res; |
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96 | CHECK(read_data(dev, &res, 1)); |
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97 | |
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98 | *busy = !(res & BIT_READY); |
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99 | |
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100 | return ESP_OK; |
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101 | } |
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102 | |
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103 | esp_err_t mcp4725_get_power_mode(i2c_dev_t *dev, bool eeprom, mcp4725_power_mode_t *mode) |
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104 | { |
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105 | CHECK_ARG(dev && mode); |
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106 | |
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107 | uint8_t buf[4]; |
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108 | CHECK(read_data(dev, buf, eeprom ? 4 : 1)); |
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109 | |
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110 | *mode = (eeprom ? buf[3] >> 5 : buf[0] >> 1) & 0x03; |
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111 | |
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112 | return ESP_OK; |
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113 | } |
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114 | |
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115 | esp_err_t mcp4725_set_power_mode(i2c_dev_t *dev, bool eeprom, mcp4725_power_mode_t mode) |
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116 | { |
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117 | CHECK_ARG(dev); |
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118 | |
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119 | uint16_t value; |
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120 | CHECK(mcp4725_get_raw_output(dev, eeprom, &value)); |
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121 | |
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122 | uint8_t data[] = { |
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123 | (eeprom ? CMD_EEPROM : CMD_DAC) | (((uint8_t)mode & 3) << 1), |
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124 | value >> 4, |
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125 | value << 4 |
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126 | }; |
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127 | |
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128 | I2C_DEV_TAKE_MUTEX(dev); |
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129 | I2C_DEV_CHECK(dev, i2c_dev_write(dev, NULL, 0, data, 3)); |
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130 | I2C_DEV_GIVE_MUTEX(dev); |
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131 | |
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132 | return ESP_OK; |
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133 | } |
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134 | |
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135 | esp_err_t mcp4725_get_raw_output(i2c_dev_t *dev, bool eeprom, uint16_t *value) |
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136 | { |
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137 | CHECK_ARG(dev && value); |
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138 | |
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139 | uint8_t buf[5]; |
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140 | CHECK(read_data(dev, buf, eeprom ? 5 : 3)); |
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141 | |
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142 | *value = eeprom |
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143 | ? ((uint16_t)(buf[3] & 0x0f) << 8) | buf[4] |
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144 | : ((uint16_t)buf[0] << 4) | (buf[1] >> 4); |
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145 | |
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146 | return ESP_OK; |
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147 | } |
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148 | |
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149 | esp_err_t mcp4725_set_raw_output(i2c_dev_t *dev, uint16_t value, bool eeprom) |
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150 | { |
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151 | CHECK_ARG(dev); |
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152 | |
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153 | uint8_t data[] = { |
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154 | (eeprom ? CMD_EEPROM : CMD_DAC), |
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155 | value >> 4, |
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156 | value << 4 |
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157 | }; |
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158 | |
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159 | ESP_LOGV(TAG, "Set output value to %u", value); |
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160 | |
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161 | I2C_DEV_TAKE_MUTEX(dev); |
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162 | I2C_DEV_CHECK(dev, i2c_dev_write(dev, NULL, 0, data, 3)); |
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163 | I2C_DEV_GIVE_MUTEX(dev); |
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164 | |
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165 | return ESP_OK; |
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166 | } |
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167 | |
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168 | esp_err_t mcp4725_get_voltage(i2c_dev_t *dev, float vdd, bool eeprom, float *voltage) |
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169 | { |
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170 | CHECK_ARG(voltage); |
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171 | |
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172 | uint16_t value; |
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173 | CHECK(mcp4725_get_raw_output(dev, eeprom, &value)); |
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174 | |
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175 | *voltage = vdd / MCP4725_MAX_VALUE * value; |
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176 | |
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177 | return ESP_OK; |
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178 | } |
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179 | |
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180 | esp_err_t mcp4725_set_voltage(i2c_dev_t *dev, float vdd, float value, bool eeprom) |
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181 | { |
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182 | return mcp4725_set_raw_output(dev, MCP4725_MAX_VALUE / vdd * value, eeprom); |
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183 | } |
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184 |