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 | * Copyright (c) 2016 Pavel Merzlyakov <merzlyakovpavel@gmail.com> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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4 | * |
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 | * 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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6 | * 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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7 | * |
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 | * 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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9 | * 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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10 | * 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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11 | * 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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12 | * 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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13 | * 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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14 | * 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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15 | * 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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16 | * |
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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17 | * 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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18 | * 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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19 | * 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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20 | * 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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21 | * 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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22 | * 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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23 | * 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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24 | * 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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25 | * 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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26 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
1c9894662795
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27 | */ |
1c9894662795
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28 | |
1c9894662795
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29 | /** |
1c9894662795
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30 | * @file ds1302.h |
1c9894662795
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31 | * |
1c9894662795
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32 | * ESP-IDF driver for DS1302 RTC |
1c9894662795
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Michiel Broek <mbroek@mbse.eu>
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33 | * |
1c9894662795
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34 | * Ported from esp-open-rtos |
1c9894662795
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35 | * |
1c9894662795
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36 | * Copyright (c) 2016 Ruslan V. Uss <unclerus@gmail.com>\n |
1c9894662795
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37 | * Copyright (c) 2016 Pavel Merzlyakov <merzlyakovpavel@gmail.com> |
1c9894662795
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38 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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39 | * BSD Licensed as described in the file LICENSE |
1c9894662795
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40 | */ |
1c9894662795
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41 | #include <freertos/FreeRTOS.h> |
1c9894662795
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42 | #include <string.h> |
1c9894662795
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43 | #include <ets_sys.h> |
1c9894662795
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44 | #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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45 | #include "ds1302.h" |
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 CH_REG 0x80 |
1c9894662795
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48 | #define WP_REG 0x8e |
1c9894662795
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49 | |
1c9894662795
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50 | #define CH_BIT (1 << 7) |
1c9894662795
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51 | #define WP_BIT (1 << 7) |
1c9894662795
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52 | #define HOUR12_BIT (1 << 7) |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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53 | #define PM_BIT (1 << 5) |
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 CH_MASK ((uint8_t)(~CH_BIT)) |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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56 | #define WP_MASK ((uint8_t)(~WP_BIT)) |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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57 | |
1c9894662795
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58 | #define CLOCK_BURST 0xbe |
1c9894662795
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59 | #define RAM_BURST 0xfe |
1c9894662795
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60 | |
1c9894662795
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61 | #define SECONDS_MASK 0x7f |
1c9894662795
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62 | #define HOUR12_MASK 0x1f |
1c9894662795
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63 | #define HOUR24_MASK 0x3f |
1c9894662795
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64 | |
1c9894662795
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65 | #define GPIO_BIT(x) (1ULL << (x)) |
1c9894662795
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66 | |
1c9894662795
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67 | #define CHECK(x) do { esp_err_t __; if ((__ = x) != ESP_OK) return __; } while (0) |
1c9894662795
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68 | #define CHECK_ARG(VAL) do { if (!(VAL)) return ESP_ERR_INVALID_ARG; } while (0) |
1c9894662795
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69 | |
1c9894662795
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70 | #if HELPER_TARGET_IS_ESP32 |
1c9894662795
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71 | static portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED; |
1c9894662795
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72 | #define PORT_ENTER_CRITICAL portENTER_CRITICAL(&mux) |
1c9894662795
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73 | #define PORT_EXIT_CRITICAL portEXIT_CRITICAL(&mux) |
1c9894662795
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74 | #else |
1c9894662795
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75 | #define PORT_ENTER_CRITICAL portENTER_CRITICAL() |
1c9894662795
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76 | #define PORT_EXIT_CRITICAL portEXIT_CRITICAL() |
1c9894662795
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77 | #endif |
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78 | |
1c9894662795
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79 | #define CHECK_MUX(x) do { esp_err_t __; if ((__ = (x)) != ESP_OK) { PORT_EXIT_CRITICAL; return __; } } while (0) |
1c9894662795
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80 | |
1c9894662795
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81 | static uint8_t bcd2dec(uint8_t val) |
1c9894662795
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82 | { |
1c9894662795
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83 | return (val >> 4) * 10 + (val & 0x0f); |
1c9894662795
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84 | } |
1c9894662795
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85 | |
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86 | static uint8_t dec2bcd(uint8_t val) |
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87 | { |
1c9894662795
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88 | return ((val / 10) << 4) + (val % 10); |
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89 | } |
1c9894662795
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90 | |
1c9894662795
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91 | inline static esp_err_t chip_enable(ds1302_t *dev) |
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92 | { |
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93 | CHECK(gpio_set_level(dev->ce_pin, 1)); |
1c9894662795
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94 | ets_delay_us(4); |
1c9894662795
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95 | return ESP_OK; |
1c9894662795
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96 | } |
1c9894662795
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97 | |
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98 | inline static esp_err_t chip_disable(ds1302_t *dev) |
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99 | { |
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100 | return gpio_set_level(dev->ce_pin, 0); |
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101 | } |
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102 | |
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103 | inline static esp_err_t prepare(ds1302_t *dev, gpio_mode_t mode) |
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104 | { |
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105 | CHECK(gpio_set_direction(dev->io_pin, mode)); |
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106 | CHECK(gpio_set_level(dev->sclk_pin, 0)); |
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107 | return chip_enable(dev); |
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108 | } |
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109 | |
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110 | inline static esp_err_t toggle_clock(ds1302_t *dev) |
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111 | { |
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112 | CHECK(gpio_set_level(dev->sclk_pin, 1)); |
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113 | ets_delay_us(1); |
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114 | CHECK(gpio_set_level(dev->sclk_pin, 0)); |
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115 | ets_delay_us(1); |
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116 | return ESP_OK; |
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117 | } |
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118 | |
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119 | static esp_err_t write_byte(ds1302_t *dev, uint8_t b) |
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120 | { |
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121 | for (uint8_t i = 0; i < 8; i++) |
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122 | { |
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123 | CHECK(gpio_set_level(dev->io_pin, (b >> i) & 1)); |
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124 | CHECK(toggle_clock(dev)); |
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125 | } |
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126 | return ESP_OK; |
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127 | } |
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128 | |
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129 | static esp_err_t read_byte(ds1302_t *dev, uint8_t *b) |
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130 | { |
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131 | *b = 0; |
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132 | for (uint8_t i = 0; i < 8; i++) |
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133 | { |
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134 | *b |= gpio_get_level(dev->io_pin) << i; |
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135 | CHECK(toggle_clock(dev)); |
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136 | } |
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137 | return ESP_OK; |
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138 | } |
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139 | |
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140 | static esp_err_t read_register(ds1302_t *dev, uint8_t reg, uint8_t *val) |
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141 | { |
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142 | PORT_ENTER_CRITICAL; |
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143 | CHECK_MUX(prepare(dev, GPIO_MODE_OUTPUT)); |
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144 | CHECK_MUX(write_byte(dev, reg | 0x01)); |
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145 | CHECK_MUX(prepare(dev, GPIO_MODE_INPUT)); |
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146 | CHECK_MUX(read_byte(dev, val)); |
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147 | PORT_EXIT_CRITICAL; |
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148 | return chip_disable(dev); |
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149 | } |
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150 | |
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151 | static esp_err_t write_register(ds1302_t *dev, uint8_t reg, uint8_t val) |
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152 | { |
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153 | PORT_ENTER_CRITICAL; |
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154 | CHECK_MUX(prepare(dev, GPIO_MODE_OUTPUT)); |
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155 | CHECK_MUX(write_byte(dev, reg)); |
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156 | CHECK_MUX(write_byte(dev, val)); |
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157 | PORT_EXIT_CRITICAL; |
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158 | return chip_disable(dev); |
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159 | } |
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160 | |
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161 | static esp_err_t burst_read(ds1302_t *dev, uint8_t reg, uint8_t *dst, uint8_t len) |
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162 | { |
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163 | PORT_ENTER_CRITICAL; |
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164 | CHECK_MUX(prepare(dev, GPIO_MODE_OUTPUT)); |
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165 | CHECK_MUX(write_byte(dev, reg | 0x01)); |
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166 | CHECK_MUX(prepare(dev, GPIO_MODE_INPUT)); |
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167 | for (uint8_t i = 0; i < len; i++, dst++) |
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168 | CHECK_MUX(read_byte(dev, dst)); |
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169 | PORT_EXIT_CRITICAL; |
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170 | return chip_disable(dev); |
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171 | } |
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172 | |
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173 | static esp_err_t burst_write(ds1302_t *dev, uint8_t reg, uint8_t *src, uint8_t len) |
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174 | { |
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175 | PORT_ENTER_CRITICAL; |
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176 | CHECK_MUX(prepare(dev, GPIO_MODE_OUTPUT)); |
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177 | CHECK_MUX(write_byte(dev, reg)); |
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178 | for (uint8_t i = 0; i < len; i++, src++) |
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179 | CHECK_MUX(write_byte(dev, *src)); |
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180 | PORT_EXIT_CRITICAL; |
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181 | return chip_disable(dev); |
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182 | } |
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183 | |
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184 | static esp_err_t update_register(ds1302_t *dev, uint8_t reg, uint8_t mask, uint8_t val) |
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185 | { |
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186 | uint8_t r; |
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187 | CHECK(read_register(dev, reg, &r)); |
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188 | return write_register(dev, reg, (r & mask) | val); |
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189 | } |
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190 | |
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191 | /////////////////////////////////////////////////////////////////////////////// |
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192 | |
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193 | esp_err_t ds1302_init(ds1302_t *dev) |
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194 | { |
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195 | CHECK_ARG(dev); |
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196 | |
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197 | gpio_config_t io_conf; |
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198 | memset(&io_conf, 0, sizeof(gpio_config_t)); |
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199 | io_conf.mode = GPIO_MODE_OUTPUT; |
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200 | io_conf.pin_bit_mask = |
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201 | GPIO_BIT(dev->ce_pin) | |
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202 | GPIO_BIT(dev->io_pin) | |
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203 | GPIO_BIT(dev->sclk_pin); |
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204 | CHECK(gpio_config(&io_conf)); |
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205 | |
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206 | bool r; |
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207 | CHECK(ds1302_is_running(dev, &r)); |
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208 | dev->ch = !r; |
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209 | |
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210 | return ESP_OK; |
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211 | } |
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212 | |
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213 | esp_err_t ds1302_start(ds1302_t *dev, bool start) |
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214 | { |
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215 | CHECK_ARG(dev); |
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216 | |
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217 | CHECK(update_register(dev, CH_REG, CH_MASK, start ? 0 : CH_BIT)); |
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218 | dev->ch = !start; |
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219 | |
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220 | return ESP_OK; |
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221 | } |
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222 | |
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223 | esp_err_t ds1302_is_running(ds1302_t *dev, bool *running) |
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224 | { |
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225 | CHECK_ARG(dev && running); |
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226 | |
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227 | uint8_t r; |
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228 | CHECK(read_register(dev, CH_REG, &r)); |
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229 | *running = !(r & CH_BIT); |
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230 | dev->ch = !*running; |
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231 | |
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232 | return ESP_OK; |
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233 | } |
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234 | |
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235 | esp_err_t ds1302_set_write_protect(ds1302_t *dev, bool wp) |
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236 | { |
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237 | CHECK_ARG(dev); |
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238 | |
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239 | return update_register(dev, WP_REG, WP_MASK, wp ? WP_BIT : 0); |
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240 | } |
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241 | |
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242 | esp_err_t ds1302_get_write_protect(ds1302_t *dev, bool *wp) |
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243 | { |
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244 | CHECK_ARG(dev && wp); |
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245 | |
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246 | uint8_t r; |
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247 | CHECK(read_register(dev, WP_REG, &r)); |
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248 | *wp = (r & WP_BIT) != 0; |
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249 | |
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250 | return ESP_OK; |
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251 | } |
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252 | |
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253 | esp_err_t ds1302_get_time(ds1302_t *dev, struct tm *time) |
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254 | { |
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255 | CHECK_ARG(dev && time); |
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256 | |
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257 | uint8_t buf[7]; |
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258 | CHECK(burst_read(dev, CLOCK_BURST, buf, 7)); |
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259 | |
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260 | time->tm_sec = bcd2dec(buf[0] & SECONDS_MASK); |
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261 | time->tm_min = bcd2dec(buf[1]); |
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262 | if (buf[2] & HOUR12_BIT) |
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263 | { |
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264 | // RTC in 12-hour mode |
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265 | time->tm_hour = bcd2dec(buf[2] & HOUR12_MASK) - 1; |
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266 | if (buf[2] & PM_BIT) |
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267 | time->tm_hour += 12; |
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268 | } |
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269 | else time->tm_hour = bcd2dec(buf[2] & HOUR24_MASK); |
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270 | time->tm_mday = bcd2dec(buf[3]); |
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271 | time->tm_mon = bcd2dec(buf[4]) - 1; |
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272 | time->tm_wday = bcd2dec(buf[5]) - 1; |
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273 | time->tm_year = bcd2dec(buf[6]) + 100; |
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274 | |
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275 | return ESP_OK; |
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276 | } |
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277 | |
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278 | esp_err_t ds1302_set_time(ds1302_t *dev, const struct tm *time) |
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279 | { |
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280 | CHECK_ARG(dev && time); |
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281 | |
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282 | uint8_t buf[8] = { |
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283 | dec2bcd(time->tm_sec) | (dev->ch ? CH_BIT : 0), |
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284 | dec2bcd(time->tm_min), |
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285 | dec2bcd(time->tm_hour), |
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286 | dec2bcd(time->tm_mday), |
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287 | dec2bcd(time->tm_mon + 1), |
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288 | dec2bcd(time->tm_wday + 1), |
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289 | dec2bcd(time->tm_year - 100), |
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290 | 0 |
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291 | }; |
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292 | return burst_write(dev, CLOCK_BURST, buf, 8); |
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293 | } |
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294 | |
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295 | esp_err_t ds1302_read_sram(ds1302_t *dev, uint8_t offset, void *buf, uint8_t len) |
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296 | { |
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297 | CHECK_ARG(dev && buf && len); |
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298 | CHECK_ARG(offset + len <= DS1302_RAM_SIZE); |
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299 | |
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300 | return burst_read(dev, RAM_BURST, (uint8_t *)buf, len); |
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301 | } |
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302 | |
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303 | esp_err_t ds1302_write_sram(ds1302_t *dev, uint8_t offset, void *buf, uint8_t len) |
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304 | { |
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305 | CHECK_ARG(dev && buf && len); |
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306 | CHECK_ARG(offset + len <= DS1302_RAM_SIZE); |
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307 | |
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308 | return burst_write(dev, RAM_BURST, (uint8_t *)buf, len); |
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309 | } |