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>
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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) 2020 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>
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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>
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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>
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6 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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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.
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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.
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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.
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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 tsys01.c |
1c9894662795
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30 | * |
1c9894662795
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31 | * ESP-IDF driver for digital temperature sensor TSYS01 |
1c9894662795
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32 | * |
1c9894662795
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33 | * Copyright (c) 2020 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
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34 | * |
1c9894662795
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35 | * BSD Licensed as described in the file LICENSE |
1c9894662795
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36 | */ |
1c9894662795
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37 | #include <esp_log.h> |
1c9894662795
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38 | #include <esp_idf_lib_helpers.h> |
1c9894662795
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39 | #include <freertos/FreeRTOS.h> |
1c9894662795
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40 | #include <freertos/task.h> |
1c9894662795
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41 | #include "tsys01.h" |
1c9894662795
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42 | |
1c9894662795
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43 | #define I2C_FREQ_HZ 1000000 // 1MHz |
1c9894662795
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44 | |
1c9894662795
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45 | static const char *TAG = "tsys01"; |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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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 CMD_RESET 0x1e |
1c9894662795
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48 | #define CMD_START 0x48 |
1c9894662795
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49 | #define CMD_READ 0x00 |
1c9894662795
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50 | #define CMD_PROM 0xa0 |
1c9894662795
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51 | #define CMD_SERIAL 0xac |
1c9894662795
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52 | |
1c9894662795
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53 | #define CHECK(x) do { esp_err_t __; if ((__ = x) != ESP_OK) return __; } while (0) |
1c9894662795
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54 | #define CHECK_ARG(VAL) do { if (!(VAL)) return ESP_ERR_INVALID_ARG; } while (0) |
1c9894662795
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55 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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56 | inline static esp_err_t send_cmd_nolock(tsys01_t *dev, uint8_t cmd) |
1c9894662795
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57 | { |
1c9894662795
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58 | return i2c_dev_write(&dev->i2c_dev, NULL, 0, &cmd, 1); |
1c9894662795
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59 | } |
1c9894662795
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60 | |
1c9894662795
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61 | static esp_err_t send_cmd(tsys01_t *dev, uint8_t cmd) |
1c9894662795
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62 | { |
1c9894662795
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63 | I2C_DEV_TAKE_MUTEX(&dev->i2c_dev); |
1c9894662795
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64 | I2C_DEV_CHECK(&dev->i2c_dev, send_cmd_nolock(dev, cmd)); |
1c9894662795
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65 | I2C_DEV_GIVE_MUTEX(&dev->i2c_dev); |
1c9894662795
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66 | |
1c9894662795
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67 | return ESP_OK; |
1c9894662795
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68 | } |
1c9894662795
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69 | |
1c9894662795
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70 | inline static float calc_temp(tsys01_t *dev, uint16_t raw) |
1c9894662795
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71 | { |
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72 | return -2.0f * dev->cal[1] / 1000000000000000000000.0f * raw * raw * raw * raw + |
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73 | 4.0f * dev->cal[2] / 10000000000000000.0f * raw * raw * raw + |
1c9894662795
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74 | -2.0f * dev->cal[3] / 100000000000.0f * raw * raw + |
1c9894662795
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75 | 1.0f * dev->cal[4] / 1000000.0f * raw + |
1c9894662795
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76 | -1.5f * dev->cal[5] / 100.0f; |
1c9894662795
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77 | } |
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78 | |
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79 | static esp_err_t get_temp_nolock(tsys01_t *dev, uint32_t *raw, float *t) |
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80 | { |
1c9894662795
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81 | uint8_t r[3]; |
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82 | CHECK(i2c_dev_read_reg(&dev->i2c_dev, CMD_READ, r, 3)); |
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83 | |
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84 | if (raw) |
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85 | *raw = ((uint32_t)r[0] << 16) | ((uint32_t)r[1] << 8) | r[2]; |
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86 | if (t) |
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87 | *t = calc_temp(dev, ((uint16_t)r[0] << 8) | r[1]); |
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88 | |
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89 | return ESP_OK; |
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90 | } |
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91 | |
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92 | /////////////////////////////////////////////////////////////////////////////// |
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93 | |
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94 | esp_err_t tsys01_init_desc(tsys01_t *dev, uint8_t addr, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio) |
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95 | { |
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96 | CHECK_ARG(dev); |
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97 | |
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98 | if (addr != TSYS01_I2C_ADDR1 && addr != TSYS01_I2C_ADDR2) |
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99 | { |
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100 | ESP_LOGE(TAG, "Invalid I2C address"); |
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101 | return ESP_ERR_INVALID_ARG; |
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102 | } |
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103 | |
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104 | dev->i2c_dev.port = port; |
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105 | dev->i2c_dev.addr = addr; |
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106 | dev->i2c_dev.cfg.sda_io_num = sda_gpio; |
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107 | dev->i2c_dev.cfg.scl_io_num = scl_gpio; |
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108 | #if HELPER_TARGET_IS_ESP32 |
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109 | dev->i2c_dev.cfg.master.clk_speed = I2C_FREQ_HZ; |
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110 | #endif |
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111 | |
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112 | return i2c_dev_create_mutex(&dev->i2c_dev); |
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113 | } |
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114 | |
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115 | esp_err_t tsys01_free_desc(tsys01_t *dev) |
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116 | { |
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117 | CHECK_ARG(dev); |
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118 | |
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119 | return i2c_dev_delete_mutex(&dev->i2c_dev); |
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120 | } |
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121 | |
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122 | esp_err_t tsys01_init(tsys01_t *dev) |
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123 | { |
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124 | CHECK_ARG(dev); |
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125 | |
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126 | I2C_DEV_TAKE_MUTEX(&dev->i2c_dev); |
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127 | for (size_t i = 0; i < 8; i++) |
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128 | { |
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129 | I2C_DEV_CHECK(&dev->i2c_dev, i2c_dev_read_reg(&dev->i2c_dev, CMD_PROM + i * 2, dev->cal + i, 2)); |
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130 | dev->cal[i] = (dev->cal[i] >> 8) | (dev->cal[i] << 8); |
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131 | } |
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132 | uint8_t r[4]; |
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133 | I2C_DEV_CHECK(&dev->i2c_dev, i2c_dev_read_reg(&dev->i2c_dev, CMD_SERIAL, r, 2)); |
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134 | I2C_DEV_CHECK(&dev->i2c_dev, i2c_dev_read_reg(&dev->i2c_dev, CMD_SERIAL + 2, r + 2, 2)); |
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135 | dev->serial = ((uint32_t)r[0] << 16) | ((uint32_t)r[1] << 8) | r[2]; |
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136 | I2C_DEV_GIVE_MUTEX(&dev->i2c_dev); |
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137 | |
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138 | return ESP_OK; |
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139 | } |
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140 | |
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141 | esp_err_t tsys01_reset(tsys01_t *dev) |
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142 | { |
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143 | CHECK_ARG(dev); |
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144 | |
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145 | return send_cmd(dev, CMD_RESET); |
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146 | } |
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147 | |
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148 | esp_err_t tsys01_start(tsys01_t *dev) |
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149 | { |
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150 | CHECK_ARG(dev); |
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151 | |
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152 | return send_cmd(dev, CMD_START); |
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153 | } |
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154 | |
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155 | esp_err_t tsys01_get_temp(tsys01_t *dev, uint32_t *raw, float *t) |
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156 | { |
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157 | CHECK_ARG(dev && (raw || t)); |
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158 | |
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159 | I2C_DEV_TAKE_MUTEX(&dev->i2c_dev); |
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160 | I2C_DEV_CHECK(&dev->i2c_dev, get_temp_nolock(dev, raw, t)); |
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161 | I2C_DEV_GIVE_MUTEX(&dev->i2c_dev); |
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162 | |
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163 | return ESP_OK; |
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164 | } |
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165 | |
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166 | esp_err_t tsys01_measure(tsys01_t *dev, float *t) |
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167 | { |
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168 | CHECK_ARG(dev && t); |
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169 | |
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170 | I2C_DEV_TAKE_MUTEX(&dev->i2c_dev); |
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171 | I2C_DEV_CHECK(&dev->i2c_dev, send_cmd_nolock(dev, CMD_START)); |
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172 | vTaskDelay(pdMS_TO_TICKS(10)); |
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173 | I2C_DEV_CHECK(&dev->i2c_dev, get_temp_nolock(dev, NULL, t)); |
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174 | I2C_DEV_GIVE_MUTEX(&dev->i2c_dev); |
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175 | |
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176 | return ESP_OK; |
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177 | } |