Tue, 28 Mar 2023 22:13:06 +0200
Added begin of INA219 measurements. Added raw main state table.
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1 | /** |
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2 | * @file task_ina219.c |
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3 | * @brief The FreeRTOS task to query the INA219 sensors. |
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4 | */ |
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5 | |
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6 | |
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7 | #include "config.h" |
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8 | |
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9 | |
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10 | static const char *TAG = "task_ina219"; |
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11 | |
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12 | SemaphoreHandle_t xSemaphoreINA219 = NULL; ///< Semaphore INA219 task |
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13 | EventGroupHandle_t xEventGroupINA219; ///< Events INA219 task |
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14 | INA219_State *ina219_state; ///< Public state for other tasks |
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15 | |
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16 | extern ina219_t ina219_b_dev; |
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17 | extern ina219_t ina219_s_dev; |
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18 | |
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19 | const int TASK_INA219_REQUEST_DONE = BIT0; ///< All requests are done. |
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20 | const int TASK_INA219_REQUEST_POWER = BIT1; ///< Request power readings |
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21 | |
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22 | |
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23 | |
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24 | void request_ina219(void) |
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25 | { |
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26 | xEventGroupClearBits(xEventGroupINA219, TASK_INA219_REQUEST_DONE); |
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27 | xEventGroupSetBits(xEventGroupINA219, TASK_INA219_REQUEST_POWER); |
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28 | } |
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29 | |
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30 | |
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31 | |
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32 | bool ready_ina219(void) |
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33 | { |
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34 | if (xEventGroupGetBits(xEventGroupINA219) & TASK_INA219_REQUEST_DONE) |
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35 | return true; |
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36 | return false; |
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37 | } |
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38 | |
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39 | |
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40 | |
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41 | /* |
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42 | * Task to read INA219 sensors on request. |
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43 | */ |
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44 | void task_ina219(void *pvParameter) |
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45 | { |
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46 | int error = 0; |
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47 | float bus_voltage, shunt_voltage, current, power; |
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48 | |
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49 | ESP_LOGI(TAG, "Starting task INA219 sda=%d scl=%d", CONFIG_I2C_MASTER_SDA, CONFIG_I2C_MASTER_SCL); |
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50 | ina219_state = malloc(sizeof(INA219_State)); |
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51 | |
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52 | ina219_state->Battery.valid = false; |
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53 | ina219_state->Battery.fake = (ina219_b_dev.i2c_dev.addr == 0) ? true:false; |
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54 | ina219_state->Battery.address = ina219_b_dev.i2c_dev.addr; |
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55 | ina219_state->Battery.error = INA219_ERR_NONE; |
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56 | if (ina219_b_dev.i2c_dev.addr) { |
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57 | ESP_LOGI(TAG, "Configuring INA219 Battery"); |
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58 | ESP_ERROR_CHECK(ina219_configure(&ina219_b_dev, INA219_BUS_RANGE_16V, INA219_GAIN_0_125, |
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59 | INA219_RES_12BIT_1S, INA219_RES_12BIT_1S, INA219_MODE_CONT_SHUNT_BUS)); |
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60 | ESP_LOGI(TAG, "Calibrating INA219 Battery"); |
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61 | ESP_ERROR_CHECK(ina219_calibrate(&ina219_b_dev, (float)I_MAX_CURRENT, (float)I_SHUNT_RESISTOR_MILLI_OHM / 1000.0f)); |
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62 | } |
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63 | |
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64 | ina219_state->Solar.valid = false; |
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65 | ina219_state->Solar.fake = (ina219_s_dev.i2c_dev.addr == 0) ? true:false; |
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66 | ina219_state->Solar.address = ina219_s_dev.i2c_dev.addr; |
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67 | ina219_state->Solar.error = INA219_ERR_NONE; |
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68 | if (ina219_s_dev.i2c_dev.addr) { |
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69 | ESP_LOGI(TAG, "Configuring INA219 Solar"); |
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70 | ESP_ERROR_CHECK(ina219_configure(&ina219_s_dev, INA219_BUS_RANGE_16V, INA219_GAIN_0_125, |
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71 | INA219_RES_12BIT_1S, INA219_RES_12BIT_1S, INA219_MODE_CONT_SHUNT_BUS)); |
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72 | ESP_LOGI(TAG, "Calibrating INA219 Solar"); |
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73 | ESP_ERROR_CHECK(ina219_calibrate(&ina219_s_dev, (float)I_MAX_CURRENT, (float)I_SHUNT_RESISTOR_MILLI_OHM / 1000.0f)); |
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74 | } |
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75 | |
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76 | /* event handler and event group for this task */ |
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77 | xEventGroupINA219 = xEventGroupCreate(); |
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78 | EventBits_t uxBits; |
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79 | |
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80 | /* |
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81 | * Task loop forever. |
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82 | */ |
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83 | ESP_LOGI(TAG, "Starting loop INA219 sensors 0x%02x %d, 0x%02x %d", |
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84 | ina219_state->Battery.address, ina219_state->Battery.fake, ina219_state->Solar.address, ina219_state->Solar.fake); |
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85 | while (1) { |
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86 | |
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87 | uxBits = xEventGroupWaitBits(xEventGroupINA219, TASK_INA219_REQUEST_POWER, pdFALSE, pdFALSE, portMAX_DELAY ); |
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88 | |
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89 | if (uxBits & TASK_INA219_REQUEST_POWER) { |
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90 | |
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91 | /* |
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92 | * Four scenario's: |
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93 | * 1. Both sensors present, just use them. |
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94 | * 2. Only battery sensor (test environment). Use it and fake |
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95 | * the solar chip as if it is charging. |
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96 | * 3. Only solar sensor. Use scenario 4, but show measured values. |
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97 | * 4. Fake everything. |
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98 | */ |
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99 | if (! ina219_state->Battery.fake) { |
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100 | ESP_ERROR_CHECK(ina219_get_bus_voltage(&ina219_b_dev, &bus_voltage)); |
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101 | ESP_ERROR_CHECK(ina219_get_shunt_voltage(&ina219_b_dev, &shunt_voltage)); |
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102 | ESP_ERROR_CHECK(ina219_get_current(&ina219_b_dev, ¤t)); |
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103 | ESP_ERROR_CHECK(ina219_get_power(&ina219_b_dev, &power)); |
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104 | ESP_LOGI(TAG, "Battery VBUS: %.04f V, VSHUNT: %.04f mV, IBUS: %.04f mA, PBUS: %.04f mW", |
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105 | bus_voltage, shunt_voltage * 1000, current * 1000, power * 1000); |
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106 | } |
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107 | if (! ina219_state->Solar.fake) { |
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108 | ESP_ERROR_CHECK(ina219_get_bus_voltage(&ina219_s_dev, &bus_voltage)); |
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109 | ESP_ERROR_CHECK(ina219_get_shunt_voltage(&ina219_s_dev, &shunt_voltage)); |
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110 | ESP_ERROR_CHECK(ina219_get_current(&ina219_s_dev, ¤t)); |
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111 | ESP_ERROR_CHECK(ina219_get_power(&ina219_s_dev, &power)); |
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112 | ESP_LOGI(TAG, " Solar VBUS: %.04f V, VSHUNT: %.04f mV, IBUS: %.04f mA, PBUS: %.04f mW", |
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113 | bus_voltage, shunt_voltage * 1000, current * 1000, power * 1000); |
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114 | } |
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115 | |
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116 | /* |
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117 | error = ina219_read_float(&ina219_dev, &temperature, &pressure, &humidity); |
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118 | if (xSemaphoreTake(xSemaphoreINA219, 25) == pdTRUE) { |
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119 | if (error == ESP_OK) { |
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120 | ina219_state->error = INA219_ERR_NONE; |
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121 | ina219_state->valid = true; |
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122 | ina219_state->temperature = temperature; |
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123 | ina219_state->pressure = pressure; |
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124 | ina219_state->humidity = humidity; |
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125 | } else { |
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126 | ina219_state->error = INA219_ERR_READ; |
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127 | ina219_state->valid = false; |
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128 | ina219_state->temperature = 0; |
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129 | ina219_state->pressure = 0; |
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130 | ina219_state->humidity = 0; |
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131 | } |
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132 | xSemaphoreGive(xSemaphoreINA219); |
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133 | } |
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134 | } else { |
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135 | if (xSemaphoreTake(xSemaphoreINA219, 25) == pdTRUE) { |
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136 | ina219_state->error = INA219_ERR_NONE; |
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137 | ina219_state->valid = true; |
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138 | ina219_state->temperature = 21.23; |
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139 | ina219_state->pressure = 101360; |
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140 | ina219_state->humidity = 0; |
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141 | xSemaphoreGive(xSemaphoreINA219); |
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142 | } |
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143 | } |
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144 | |
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145 | */ |
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146 | xEventGroupClearBits(xEventGroupINA219, TASK_INA219_REQUEST_POWER); |
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147 | xEventGroupSetBits(xEventGroupINA219, TASK_INA219_REQUEST_DONE); |
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148 | #if 0 |
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149 | ESP_LOGI(TAG, " TB: %.3f C, %.1f hPa, error: %d", ina219_state->temperature, ina219_state->pressure / 100, ina219_state->error); |
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150 | #endif |
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151 | } |
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152 | } |
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153 | } |