{"draftJsState":{"blocks":[{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Датчик тока и напряжения INA3221 представляет собой трех канальный измеритель тока и напряжения. Выпускается в виде готового модуля, в котором установлено несколько светодиодов, сделаны все необходимые разъемы и установлены три шунта.","type":"unstyled","key":"3mmsg"},{"data":{"image":{"id":"681b65c2f4c61d4ec913e73d"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"dlv9h"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"unstyled","key":"33qun"},{"data":{"image":{"id":"681b65a51d84a9368806196f"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"78r35"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Диапазон измеряемого напряжения находится в диапазоне от 0 до 26 В, а максимальный измеряемый ток составляет около 1,6 А, на канал. Но ограничение в 1,6 А это ограничение установленного шунта, который имеет сопротивление 0,1 Ом, при желании сопротивление шунта можно уменьшить для увеличения диапазона измеряемого тока.","type":"unstyled","key":"d0d7e"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Характеристики:","type":"unstyled","key":"8u7hk"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Измерение напряжения от 0 до 26 В","type":"unordered-list-item","key":"boheb"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Три независимых канала для измерений","type":"unordered-list-item","key":"49d88"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Собственное потребление 350 мкА","type":"unordered-list-item","key":"fttqu"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Питание от 2,7 до 5,5 В","type":"unordered-list-item","key":"d3u2g"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Интерфейсы SMBus и I2C.","type":"unordered-list-item","key":"b8dhj"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Четыре программируемых адреса","type":"unordered-list-item","key":"1qdbc"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Программируемое усреднение значений","type":"unordered-list-item","key":"2qdt1"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Работает в интервале температур от -40 до +125 °C","type":"unordered-list-item","key":"6f9sa"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Контроль напряжений питающей шины и трех токовых шунтов","type":"unordered-list-item","key":"cghvn"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Офсетное напряжение максимум ± 80 мкВ","type":"unordered-list-item","key":"a0cl8"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Разрешение АЦП 12 бит","type":"unordered-list-item","key":"bjfm7"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"С предустановленным шунтом в 0,1 ома максимальный измеряемый ток 1,6 ампера на канал","type":"unordered-list-item","key":"2keu0"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Диапазон измерителя шунта от -160,84 до +160,8 мВ","type":"unordered-list-item","key":"72rb9"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Назначение контактов:","type":"unstyled","key":"51of2"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"VS — питание модуля 2,7 до 5,5 В","type":"unordered-list-item","key":"1p2m2"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"GND — питание модуля, земля","type":"unordered-list-item","key":"3s09i"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"SCL — последовательные данные шины I2C (serial data)","type":"unordered-list-item","key":"crv8v"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"SDA — последовательное тактирование шины данных I2C (serial clock)","type":"unordered-list-item","key":"agio0"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"PV — цифровой выход сигнала превышения напряжения, программируется, если вышел за указанные пределы, установится в единицу","type":"unordered-list-item","key":"9eis1"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"CRI — цифровой выход о критической ситуации, такие ошибки как переполюсовка или короткой замыкание, установится в единицу","type":"unordered-list-item","key":"aaqbb"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"WAR — предупреждение об ошибке измерения","type":"unordered-list-item","key":"8nmht"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"ТС — контроль таймингов, цифровой. Меняет свое состояние если пробит один из шунтов, установится в единицу","type":"unordered-list-item","key":"4bahi"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":13,"offset":0,"style":"BOLD"}],"text":"CH1, CH2, CH3 — вывод, для подключения нагрузки","type":"unordered-list-item","key":"8tddg"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":3,"offset":0,"style":"BOLD"}],"text":"VPU — вывод мониторинга допустимой мощности. Подтянут к контакту PV через резистор 10 кОм","type":"unordered-list-item","key":"b3904"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":4,"offset":0,"style":"BOLD"}],"text":"POW — плюс питания (основное силовое питание от 0 до 26 В)","type":"unordered-list-item","key":"13dj4"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":3,"offset":0,"style":"BOLD"}],"text":"GND — минус от источника POW","type":"unordered-list-item","key":"5u7fp"},{"data":{"image":{"id":"681b65a51d84a93688061970"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Адресные перемычки позволяют изменить I2C адрес модуля.","type":"atomic:image","key":"e70dr"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":3,"offset":0,"style":"BOLD"}],"text":"GND — 0x40","type":"unordered-list-item","key":"49vqn"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":3,"offset":0,"style":"BOLD"}],"text":"SCL — 0x41","type":"unordered-list-item","key":"8hrau"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":3,"offset":0,"style":"BOLD"}],"text":"SDA — 0x42","type":"unordered-list-item","key":"4ltef"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":2,"offset":0,"style":"BOLD"}],"text":"VS — 0x43","type":"unordered-list-item","key":"7g4ur"},{"data":{"image":{"id":"681b65a5f95c6a5647aa0f49"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Назначение светодиодов","type":"atomic:image","key":"4oapo"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":5,"offset":0,"style":"BOLD"}],"text":"LED1 — индикатор наличия питания","type":"unordered-list-item","key":"cupp1"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":5,"offset":0,"style":"BOLD"}],"text":"LED2 — указывает на то что питание находится в запрограммированном диапазоне","type":"unordered-list-item","key":"cbhjm"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":5,"offset":0,"style":"BOLD"}],"text":"LED3 — указатель критической проблемы такой как неверная полярность или короткое замыкание","type":"unordered-list-item","key":"11pnc"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":5,"offset":0,"style":"BOLD"}],"text":"LED4 — ошибка измерения","type":"unordered-list-item","key":"aai7m"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":5,"offset":0,"style":"BOLD"}],"text":"LED5 — обрыв линии питания одного из трех выводов","type":"unordered-list-item","key":"flpdc"},{"data":{},"depth":0,"entityRanges":[{"key":0,"length":41,"offset":121}],"inlineStyleRanges":[],"text":"Для использования модуля INA3221 в среде программирования Arduino IDE существует несколько библиотек, одна из них это — https://github.com/Tinyu-Zhao/INA3221.git. Она достаточно проста в использовании, при измерении всю полученную информацию выводит в монитор порта.","type":"unstyled","key":"aic4f"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Скетч (I2C адрес 0х40):","type":"unstyled","key":"fvv31"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":4,"offset":10,"style":"BOLD"},{"length":6,"offset":252,"style":"BOLD"},{"length":6,"offset":293,"style":"BOLD"},{"length":6,"offset":1436,"style":"BOLD"},{"length":6,"offset":1481,"style":"BOLD"},{"length":6,"offset":1529,"style":"BOLD"},{"length":6,"offset":1576,"style":"BOLD"},{"length":6,"offset":1636,"style":"BOLD"},{"length":6,"offset":1670,"style":"BOLD"},{"length":6,"offset":1718,"style":"BOLD"},{"length":6,"offset":1744,"style":"BOLD"},{"length":6,"offset":1789,"style":"BOLD"},{"length":6,"offset":1837,"style":"BOLD"},{"length":6,"offset":1884,"style":"BOLD"},{"length":6,"offset":1944,"style":"BOLD"},{"length":6,"offset":1978,"style":"BOLD"},{"length":6,"offset":2026,"style":"BOLD"},{"length":6,"offset":2052,"style":"BOLD"},{"length":6,"offset":2097,"style":"BOLD"},{"length":6,"offset":2145,"style":"BOLD"},{"length":6,"offset":2192,"style":"BOLD"},{"length":6,"offset":2252,"style":"BOLD"},{"length":6,"offset":2286,"style":"BOLD"},{"length":6,"offset":2334,"style":"BOLD"}],"text":"#include \n#include \n\n#define SERIAL_SPEED 9600 // serial baud rate\n#define PRINT_DEC_POINTS 3 // decimal points to print\n\n// Set I2C address to 0x41 (A0 pin -> VCC)\nINA3221 ina3221(INA3221_ADDR40_GND);\n\nvoid setup() {\n Serial.begin(SERIAL_SPEED);\n\n while (!Serial) {\n delay(1);\n }\n\n ina3221.begin();\n ina3221.reset();\n\n // Set shunt resistors to 10 mOhm for all channels\n ina3221.setShuntRes(100, 100, 100);\n\n // Set series filter resistors to 10 Ohm for all channels.\n // Series filter resistors introduce error to the current measurement.\n // The error can be estimated and depends on the resitor values and the bus\n // voltage.\n ina3221.setFilterRes(100, 100, 100);\n}\n\nvoid loop() {\n float current[3];\n float current_compensated[3];\n float voltage[3];\n\n current[0] = ina3221.getCurrent(INA3221_CH1);\n current_compensated[0] = ina3221.getCurrentCompensated(INA3221_CH1);\n voltage[0] = ina3221.getVoltage(INA3221_CH1);\n\n current[1] = ina3221.getCurrent(INA3221_CH2);\n current_compensated[1] = ina3221.getCurrentCompensated(INA3221_CH2);\n voltage[1] = ina3221.getVoltage(INA3221_CH2);\n\n current[2] = ina3221.getCurrent(INA3221_CH3);\n current_compensated[2] = ina3221.getCurrentCompensated(INA3221_CH3);\n voltage[2] = ina3221.getVoltage(INA3221_CH3);\n\n Serial.print(\"Channel 1: \\n Current: \");\n Serial.print(current[0], PRINT_DEC_POINTS);\n Serial.print(\"A\\n Compensated current: \");\n Serial.print(current_compensated[0], PRINT_DEC_POINTS);\n Serial.print(\"\\n Voltage: \");\n Serial.print(voltage[0], PRINT_DEC_POINTS);\n Serial.println(\"V\");\n\n Serial.print(\"Channel 2: \\n Current: \");\n Serial.print(current[1], PRINT_DEC_POINTS);\n Serial.print(\"A\\n Compensated current: \");\n Serial.print(current_compensated[1], PRINT_DEC_POINTS);\n Serial.print(\"\\n Voltage: \");\n Serial.print(voltage[1], PRINT_DEC_POINTS);\n Serial.println(\"V\");\n\n Serial.print(\"Channel 3: \\n Current: \");\n Serial.print(current[2], PRINT_DEC_POINTS);\n Serial.print(\"A\\n Compensated current: \");\n Serial.print(current_compensated[2], PRINT_DEC_POINTS);\n Serial.print(\"\\n Voltage: \");\n Serial.print(voltage[2], PRINT_DEC_POINTS);\n Serial.println(\"V\\n\");\n\n delay(1000);\n}","type":"unstyled","key":"e73h3"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Вывод монитора порта:","type":"unstyled","key":"ef8a9"},{"data":{"image":{"id":"681b65a5e1a3d30332c20bc4"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"osce"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Как видно на скриншоте в монитор порта выводятся все три канала, проводится измерение тока, напряжение падения на шунте и напряжение на выходе (измерение напряжения на выходе производится после шунта).","type":"unstyled","key":"396p3"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Далее рассмотрим подробней работу ИМС INA3221, запустим модуль без использования библиотеки, рассмотрим работу регистров.","type":"unstyled","key":"akden"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"ИМС INA3221 содержит достаточно много регистров, не все их поддерживает выше указанная библиотека, поэтому обращение к регистрам позволит получить больший функционал микросхемы чем заложено в библиотеке.","type":"unstyled","key":"60d8f"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Таблица регистров:","type":"unstyled","key":"blr1u"},{"data":{"image":{"id":"681b65a5f95c6a5647aa0f4a"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"5jdhr"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Далее рассмотрим подробнее несколько основных регистров. Все регистры длиной 16 бит.","type":"unstyled","key":"cn0e0"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":27,"offset":0,"style":"BOLD"}],"text":"Configuration Register 0х00","type":"unstyled","key":"chu66"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Этот регистр содержит основные первоначальные настройки INA3221","type":"unstyled","key":"epvm5"},{"data":{"image":{"id":"681b65a695628714979dbfcf"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"bmgdb"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Биты:","type":"unstyled","key":"1tdcc"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"RST — установка 1 вызовет перезагрузку ИМС","type":"unordered-list-item","key":"154b3"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"CH1en — CH3en включает измерительные каналы","type":"unordered-list-item","key":"51ff0"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"AVG2-0 — биты для усреднения результата измерения:000 = 1 (default)\n001 = 4\n010 = 16\n011 = 64\n100 = 128\n101 = 256\n110 = 512\n111 = 1024\n","type":"unordered-list-item","key":"2bh1k"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"VBUSCT2-0 — устанавливает время преобразования для измерителя напряжения, чем больше, тем более точные измерения:000 = 140 μs\n001 = 204 μs\n010 = 332 μs\n011 = 588 μs\n100 = 1.1 ms (default)\n101 = 2.116 ms\n110 = 4.156 ms\n111 = 8.244 ms\n","type":"unordered-list-item","key":"90a87"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"VSHCT2-0 — устанавливают время преобразования для измерителя шунта, биты аналогичны VBUSCT2-0","type":"unordered-list-item","key":"558o3"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"MODE3-1 — режим работы","type":"unordered-list-item","key":"6g5kj"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Далее идут шесть регистров для чтения которые содержат информацию об измерении напряжения и напряжения шунта для всех каналов:","type":"unstyled","key":"84v9l"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":32,"offset":0,"style":"BOLD"}],"text":"Channel-1 Shunt-Voltage Register","type":"unstyled","key":"4mo1n"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":32,"offset":0,"style":"BOLD"}],"text":"Channel-2 Shunt-Voltage Register","type":"unstyled","key":"7nqen"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":32,"offset":0,"style":"BOLD"}],"text":"Channel-3 Shunt-Voltage Register","type":"unstyled","key":"1nkc8"},{"data":{"image":{"id":"681b65a641a9f17d760baa05"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"b4tkl"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":30,"offset":0,"style":"BOLD"}],"text":"Channel-1 Bus-Voltage Register","type":"unstyled","key":"89hci"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":30,"offset":0,"style":"BOLD"}],"text":"Channel-2 Bus-Voltage Register","type":"unstyled","key":"63qre"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":30,"offset":0,"style":"BOLD"}],"text":"Channel-3 Bus-Voltage Register","type":"unstyled","key":"e9d2k"},{"data":{"image":{"id":"681b65a6f4c61d4ec913bd3b"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"94u2k"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Как видно измерение 12 бит, плюс еще один бит (SING) который содержит полярность измеренного значения.","type":"unstyled","key":"4kjks"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":23,"offset":14,"style":"BOLD"},{"length":21,"offset":74,"style":"BOLD"}],"text":"Для регистров Shunt-Voltage Register разрешение младшего бита 40 мкВ, для Bus-Voltage Register 8 мВ.","type":"unstyled","key":"60ovb"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Как ранее отмечалось в INA3221 имеется возможность контроля напряжений питающей шины и трех токовых шунтов. Так как INA3221 в процессе измерения помимо обычного одиночного измерения может усреднять измерения, то регистры контроля напряжения так же могут иметь ограничения по одиночному измерению, так и по усредненному.","type":"unstyled","key":"643rm"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Для одиночного измерения служат регистры:","type":"unstyled","key":"19aeq"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":30,"offset":0,"style":"BOLD"}],"text":"Channel-1 Critical Alert Limit","type":"unordered-list-item","key":"6se44"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":30,"offset":0,"style":"BOLD"}],"text":"Channel-2 Critical Alert Limit","type":"unordered-list-item","key":"f7vnl"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":30,"offset":0,"style":"BOLD"}],"text":"Channel-3 Critical Alert Limit","type":"unordered-list-item","key":"72oer"},{"data":{"image":{"id":"681b65a70cd9416dbad4dfb9"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"c1kk0"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Для усредненного измерения служат регистры:","type":"unstyled","key":"76ctl"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":29,"offset":0,"style":"BOLD"}],"text":"Channel-1 Warning Alert Limit","type":"unordered-list-item","key":"3m4m9"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":29,"offset":0,"style":"BOLD"}],"text":"Channel-2 Warning Alert Limit","type":"unordered-list-item","key":"k79d"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":29,"offset":0,"style":"BOLD"}],"text":"Channel-3 Warning Alert Limit","type":"unordered-list-item","key":"5tahm"},{"data":{"image":{"id":"681b65a795628714979dc091"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"8k72l"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":21,"offset":58,"style":"BOLD"},{"length":31,"offset":192,"style":"BOLD"},{"length":11,"offset":330,"style":"BOLD"},{"length":11,"offset":471,"style":"BOLD"}],"text":"Теперь как это работает, при проведении измерения регистр Channel-1 Bus Voltage (регистр измеренного напряжения канал 1) постоянно сравнивает свое значение с регистром контроля первого канала Channel-1 Critical Alert Limit, если значение регистра измерения больше значения регистра контроля, то в зависимости от настроек регистра Mask/Enable (см. дальше), может изменится состояние выхода CRI, загорится светодиод на плате модуля, изменится один из битов (флаг) регистра Mask/Enable.","type":"unstyled","key":"332fb"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":3,"offset":72,"style":"BOLD"}],"text":"Считывая состояние бита (флаг) контроля или логическое состояние выхода CRI при превышении допустимого значения напряжения указанного в регистре контроля, можно например отключить питание, вывести на дисплей сообщение.","type":"unstyled","key":"dhldk"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":17,"offset":22,"style":"BOLD"}],"text":"Далее следуют регистр Shunt-Voltage Sum, этот регистр содержит в себе сумму падений напряжений всех шунтов, то есть по сути сумму всех токов выходов CH1, CH2 и CH3:","type":"unstyled","key":"2fjud"},{"data":{"image":{"id":"681b65a7d568643f0ad00a63"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"1pvbp"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":23,"offset":32,"style":"BOLD"}],"text":"За ним следует регистр контроля Shunt-Voltage Sum Limit для суммы всех токов, который может содержать максимально допустимое значение тока потребления модуля:","type":"unstyled","key":"5rrje"},{"data":{"image":{"id":"681b65a8e5686b5ff0b930be"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"frdh7"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":18,"offset":23,"style":"BOLD"},{"length":24,"offset":68,"style":"BOLD"},{"length":11,"offset":132,"style":"BOLD"},{"length":12,"offset":226,"style":"BOLD"}],"text":"Если значение регистра Shunt-Voltage Sum превысит значение регистра Shunt-Voltage Sum Limit , то в зависимости от настроек регистра Mask/Enable (см. дальше), так же произойдет изменение состояния выхода CRI или битов регистра Mask/Enable.","type":"unstyled","key":"8a33"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":11,"offset":8,"style":"BOLD"}],"text":"Регистр Mask/Enable","type":"unstyled","key":"483t1"},{"data":{"image":{"id":"681b65a8e1be520d9f3b2b91"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"dpnbp"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Содержит биты настроек регистров контроля и флаги состояний регистров контроля.","type":"unstyled","key":"dcnpu"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":11,"offset":23,"style":"BOLD"}],"text":"Основные биты регистра Mask/Enable:","type":"unstyled","key":"49n90"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"SCC1-3 — управление каналом суммирования падений напряжений шунтов. Включает каналы для сравнения результата измерения с регистром контроля.","type":"unordered-list-item","key":"6441f"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"WEN — включение предупреждающего сигнала.","type":"unordered-list-item","key":"daba3"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"CEN — активирование критического оповещения.","type":"unordered-list-item","key":"5696j"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"CF1-3 — флаги критического оповещения при превышении регистров контроля напряжения при одиночном измерении","type":"unordered-list-item","key":"1vcrt"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"SF — флаг предупреждения о превышении регистра суммы падений напряжений шунтов.","type":"unordered-list-item","key":"1q180"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"WF1-3 — флаги критического оповещения при превышении регистров контроля напряжения при усредненном измерении","type":"unordered-list-item","key":"ee209"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"PVF — флаг предупреждения о допустимой мощности.","type":"unordered-list-item","key":"2172t"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Ниже показан скетч который считывает показания регистров напряжения и регистров падений напряжений шунта, из полученного значения напряжения падения шунта рассчитывается ток.","type":"unstyled","key":"3o48f"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":4,"offset":169,"style":"BOLD"},{"length":4,"offset":197,"style":"BOLD"},{"length":6,"offset":215,"style":"BOLD"},{"length":6,"offset":350,"style":"BOLD"},{"length":6,"offset":383,"style":"BOLD"},{"length":6,"offset":423,"style":"BOLD"},{"length":6,"offset":447,"style":"BOLD"},{"length":6,"offset":704,"style":"BOLD"},{"length":6,"offset":726,"style":"BOLD"},{"length":6,"offset":751,"style":"BOLD"},{"length":6,"offset":778,"style":"BOLD"},{"length":6,"offset":799,"style":"BOLD"},{"length":6,"offset":827,"style":"BOLD"},{"length":6,"offset":854,"style":"BOLD"},{"length":6,"offset":875,"style":"BOLD"},{"length":6,"offset":898,"style":"BOLD"},{"length":6,"offset":924,"style":"BOLD"},{"length":6,"offset":946,"style":"BOLD"},{"length":6,"offset":968,"style":"BOLD"},{"length":6,"offset":993,"style":"BOLD"},{"length":6,"offset":1020,"style":"BOLD"},{"length":6,"offset":1041,"style":"BOLD"},{"length":6,"offset":1069,"style":"BOLD"},{"length":6,"offset":1096,"style":"BOLD"},{"length":6,"offset":1117,"style":"BOLD"},{"length":6,"offset":1140,"style":"BOLD"},{"length":6,"offset":1166,"style":"BOLD"},{"length":6,"offset":1188,"style":"BOLD"},{"length":6,"offset":1210,"style":"BOLD"},{"length":6,"offset":1235,"style":"BOLD"},{"length":6,"offset":1262,"style":"BOLD"},{"length":6,"offset":1283,"style":"BOLD"},{"length":6,"offset":1311,"style":"BOLD"},{"length":6,"offset":1338,"style":"BOLD"},{"length":6,"offset":1359,"style":"BOLD"},{"length":6,"offset":1382,"style":"BOLD"},{"length":6,"offset":1408,"style":"BOLD"},{"length":4,"offset":1482,"style":"BOLD"},{"length":4,"offset":1514,"style":"BOLD"},{"length":4,"offset":1533,"style":"BOLD"},{"length":4,"offset":1559,"style":"BOLD"},{"length":4,"offset":1593,"style":"BOLD"},{"length":4,"offset":1638,"style":"BOLD"},{"length":4,"offset":1656,"style":"BOLD"},{"length":4,"offset":1740,"style":"BOLD"},{"length":4,"offset":1772,"style":"BOLD"},{"length":4,"offset":1791,"style":"BOLD"},{"length":4,"offset":1823,"style":"BOLD"},{"length":4,"offset":1850,"style":"BOLD"}],"text":"#define ADDR 0x40 // I2C address\n#define UR 0.1 // R (Om)\n#define AVG 0B100\n#define VBUS 0B111\n#define CH 0B111\n#define VSH 0B111\n#define MODE 0B111\n\n#include \n\nvoid setup() {\n Wire.begin();\n Serial.begin(9600);\n delay(100);\n I2C_write(0x00, 0x00|(CH<<12)|(AVG<<9)|(VBUS<<6)|(VSH<<3)|MODE); // Configuration Register\n Serial.print(\"Manufacturer ID \");Serial.println(I2C_read(0xFE),HEX);\n Serial.print(\"Die ID \");Serial.println(I2C_read(0xFF),HEX);\n}\n\nvoid loop() {\n int ur1=(I2C_read(0x01)>>3);\n int u1=(I2C_read(0x02)>>3);\n int ur2=(I2C_read(0x03)>>3);\n int u2=(I2C_read(0x04)>>3);\n int ur3=(I2C_read(0x05)>>3);\n int u3=(I2C_read(0x06)>>3);\n \n Serial.print(\"Ur_1 \");Serial.print(ur1*0.04,3);Serial.println(\" mV\");\n Serial.print(\"I_1 \");Serial.print(ur1*0.04/UR,1);Serial.println(\" mA\");\n Serial.print(\"U_1 \");Serial.print(u1*0.008);Serial.println(\" V\");\n Serial.println();\n Serial.print(\"Ur_2 \");Serial.print(ur2*0.04,3);Serial.println(\" mV\");\n Serial.print(\"I_2 \");Serial.print(ur2*0.04/UR,1);Serial.println(\" mA\");\n Serial.print(\"U_2 \");Serial.print(u2*0.008);Serial.println(\" V\");\n Serial.println();\n Serial.print(\"Ur_3 \");Serial.print(ur3*0.04,3);Serial.println(\" mV\");\n Serial.print(\"I_3 \");Serial.print(ur3*0.04/UR,1);Serial.println(\" mA\");\n Serial.print(\"U_3 \");Serial.print(u3*0.008);Serial.println(\" V\");\n Serial.println();\n delay(2000);\n}\n\n\nunsigned int I2C_read(byte reg){\n Wire.beginTransmission(ADDR);\n Wire.write(reg);\n Wire.endTransmission();\n Wire.requestFrom(ADDR,2);\n while(Wire.available()<1);\n unsigned int value = (Wire.read()<<8) | Wire.read();\n return value;\n } \n\nvoid I2C_write(byte reg, unsigned int data){ \n Wire.beginTransmission(ADDR);\n Wire.write(reg);\n Wire.write((data&0xFF00)>>8);\n Wire.write(data&0x00FF);\n Wire.endTransmission();\n }","type":"unstyled","key":"45hde"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Все полученные данные выводятся в монитор порта:","type":"unstyled","key":"dubjd"},{"data":{"image":{"id":"681b65a82651887977728815"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"9h0ae"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"В скетче для поддержки шины I2C используется библиотека Wire (входит в состав Arduino IDE), при помощи двух функций осуществляется запись и чтение регистров датчика:","type":"unstyled","key":"cjmfn"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":4,"offset":35,"style":"BOLD"},{"length":4,"offset":67,"style":"BOLD"},{"length":4,"offset":86,"style":"BOLD"},{"length":4,"offset":112,"style":"BOLD"},{"length":4,"offset":146,"style":"BOLD"},{"length":4,"offset":191,"style":"BOLD"},{"length":4,"offset":209,"style":"BOLD"},{"length":4,"offset":293,"style":"BOLD"},{"length":4,"offset":325,"style":"BOLD"},{"length":4,"offset":344,"style":"BOLD"},{"length":4,"offset":376,"style":"BOLD"},{"length":4,"offset":403,"style":"BOLD"}],"text":"unsigned int I2C_read(byte reg){\n Wire.beginTransmission(ADDR);\n Wire.write(reg);\n Wire.endTransmission();\n Wire.requestFrom(ADDR,2);\n while(Wire.available()<1);\n unsigned int value = (Wire.read()<<8) | Wire.read();\n return value;\n } \n\nvoid I2C_write(byte reg, unsigned int data){ \n Wire.beginTransmission(ADDR);\n Wire.write(reg);\n Wire.write((data&0xFF00)>>8);\n Wire.write(data&0x00FF);\n Wire.endTransmission();\n }","type":"unstyled","key":"ar9tp"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Далее происходит конфигурирование датчика, задается режим работы:","type":"unstyled","key":"26fd3"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"I2C_write(0x00, 0x00|(CH<<12)|(AVG<<9)|(VBUS<<6)|(VSH<<3)|MODE); // Configuration Register","type":"unstyled","key":"emu1f"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Считываем данные регистров напряжений и падений напряжений шунтов:","type":"unstyled","key":"1svcp"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"int ur1=(I2C_read(0x01)>>3);\n int u1=(I2C_read(0x02)>>3);\n int ur2=(I2C_read(0x03)>>3);\n int u2=(I2C_read(0x04)>>3);\n int ur3=(I2C_read(0x05)>>3);\n int u3=(I2C_read(0x06)>>3);","type":"unstyled","key":"7c3ul"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"А далее просто все выводим в монитор порта, попутно делая расчет тока:","type":"unstyled","key":"ac9o9"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":6,"offset":0,"style":"BOLD"},{"length":6,"offset":22,"style":"BOLD"},{"length":6,"offset":47,"style":"BOLD"},{"length":6,"offset":74,"style":"BOLD"},{"length":6,"offset":95,"style":"BOLD"},{"length":6,"offset":123,"style":"BOLD"},{"length":6,"offset":150,"style":"BOLD"},{"length":6,"offset":171,"style":"BOLD"},{"length":6,"offset":194,"style":"BOLD"},{"length":6,"offset":220,"style":"BOLD"},{"length":6,"offset":242,"style":"BOLD"},{"length":6,"offset":264,"style":"BOLD"},{"length":6,"offset":289,"style":"BOLD"},{"length":6,"offset":316,"style":"BOLD"},{"length":6,"offset":337,"style":"BOLD"},{"length":6,"offset":365,"style":"BOLD"},{"length":6,"offset":392,"style":"BOLD"},{"length":6,"offset":413,"style":"BOLD"},{"length":6,"offset":436,"style":"BOLD"},{"length":6,"offset":462,"style":"BOLD"},{"length":6,"offset":484,"style":"BOLD"},{"length":6,"offset":506,"style":"BOLD"},{"length":6,"offset":531,"style":"BOLD"},{"length":6,"offset":558,"style":"BOLD"},{"length":6,"offset":579,"style":"BOLD"},{"length":6,"offset":607,"style":"BOLD"},{"length":6,"offset":634,"style":"BOLD"},{"length":6,"offset":655,"style":"BOLD"},{"length":6,"offset":678,"style":"BOLD"}],"text":"Serial.print(\"Ur_1 \");Serial.print(ur1*0.04,3);Serial.println(\" mV\");\n Serial.print(\"I_1 \");Serial.print(ur1*0.04/UR,1);Serial.println(\" mA\");\n Serial.print(\"U_1 \");Serial.print(u1*0.008);Serial.println(\" V\");\n Serial.println();\n Serial.print(\"Ur_2 \");Serial.print(ur2*0.04,3);Serial.println(\" mV\");\n Serial.print(\"I_2 \");Serial.print(ur2*0.04/UR,1);Serial.println(\" mA\");\n Serial.print(\"U_2 \");Serial.print(u2*0.008);Serial.println(\" V\");\n Serial.println();\n Serial.print(\"Ur_3 \");Serial.print(ur3*0.04,3);Serial.println(\" mV\");\n Serial.print(\"I_3 \");Serial.print(ur3*0.04/UR,1);Serial.println(\" mA\");\n Serial.print(\"U_3 \");Serial.print(u3*0.008);Serial.println(\" V\");","type":"unstyled","key":"e00ok"},{"data":{"image":{"id":"681b65a8d9ef4566e427363e"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"5rd1o"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Далее для примера соберем простую схему состоящую из датчика INA3221 и дисплея OLED 1.3″ 128X64 на базе контроллера SH1106.","type":"unstyled","key":"1829l"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":26,"offset":143,"style":"BOLD"},{"length":33,"offset":272,"style":"BOLD"}],"text":"Суть скетча простая, на дисплей выводятся показания тока и напряжения для трех каналов, а так же выводится суммарный ток (считанный с регистра Shunt-Voltage Sum Register), зададим ограничение по суммарному току в размере 600 мА, укажем это ограничение в регистре контроля Shunt-Voltage Sum-Limit Register.","type":"unstyled","key":"at8p1"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"При превышении значения ограничения суммарного тока на дисплей выводится надпись «ERROR» и меняется логическое состояние выхода CRI.","type":"unstyled","key":"f5buq"},{"data":{"image":{"id":"681b65a9fa08a16bed2e8ebe"}},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"atomic:image","key":"5h8fc"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[{"length":4,"offset":193,"style":"BOLD"},{"length":4,"offset":366,"style":"BOLD"},{"length":6,"offset":384,"style":"BOLD"},{"length":6,"offset":646,"style":"BOLD"},{"length":6,"offset":679,"style":"BOLD"},{"length":6,"offset":719,"style":"BOLD"},{"length":6,"offset":743,"style":"BOLD"},{"length":6,"offset":1070,"style":"BOLD"},{"length":6,"offset":1092,"style":"BOLD"},{"length":6,"offset":1114,"style":"BOLD"},{"length":6,"offset":1141,"style":"BOLD"},{"length":6,"offset":1162,"style":"BOLD"},{"length":6,"offset":1190,"style":"BOLD"},{"length":6,"offset":1217,"style":"BOLD"},{"length":6,"offset":1238,"style":"BOLD"},{"length":6,"offset":1261,"style":"BOLD"},{"length":6,"offset":1287,"style":"BOLD"},{"length":6,"offset":1309,"style":"BOLD"},{"length":6,"offset":1331,"style":"BOLD"},{"length":6,"offset":1356,"style":"BOLD"},{"length":6,"offset":1383,"style":"BOLD"},{"length":6,"offset":1404,"style":"BOLD"},{"length":6,"offset":1432,"style":"BOLD"},{"length":6,"offset":1459,"style":"BOLD"},{"length":6,"offset":1480,"style":"BOLD"},{"length":6,"offset":1503,"style":"BOLD"},{"length":6,"offset":1529,"style":"BOLD"},{"length":6,"offset":1551,"style":"BOLD"},{"length":6,"offset":1573,"style":"BOLD"},{"length":6,"offset":1598,"style":"BOLD"},{"length":6,"offset":1625,"style":"BOLD"},{"length":6,"offset":1646,"style":"BOLD"},{"length":6,"offset":1674,"style":"BOLD"},{"length":6,"offset":1701,"style":"BOLD"},{"length":6,"offset":1722,"style":"BOLD"},{"length":6,"offset":1745,"style":"BOLD"},{"length":4,"offset":2547,"style":"BOLD"},{"length":4,"offset":2579,"style":"BOLD"},{"length":4,"offset":2598,"style":"BOLD"},{"length":4,"offset":2624,"style":"BOLD"},{"length":4,"offset":2658,"style":"BOLD"},{"length":4,"offset":2703,"style":"BOLD"},{"length":4,"offset":2721,"style":"BOLD"},{"length":4,"offset":2805,"style":"BOLD"},{"length":4,"offset":2837,"style":"BOLD"},{"length":4,"offset":2856,"style":"BOLD"},{"length":4,"offset":2888,"style":"BOLD"},{"length":4,"offset":2915,"style":"BOLD"}],"text":"#define ADDR 0x40 // I2C address\n#define UR 0.1 // R (Om)\n#define AVG 0B001\n#define VBUS 0B111\n#define CH 0B111\n#define VSH 0B111\n#define MODE 0B111\n\n#define I_ogr 0.6 // A\n\n#include \n#include // https://github.com/olikraus/u8glib/\n\nU8GLIB_SH1106_128X64 u8g(U8G_I2C_OPT_DEV_0|U8G_I2C_OPT_FAST);\n\nint ogr_i;\n\nvoid setup() {\n Wire.begin();\n Serial.begin(9600);\n delay(100);\n I2C_write(0x00, 0x00|(CH<<12)|(AVG<<9)|(VBUS<<6)|(VSH<<3)|MODE); // Configuration Register\n I2C_write(0x0F, 0b111<<12);\n ogr_i = (int)(I_ogr/0.0004)<<1;\n I2C_write(0x0E, ogr_i); // CRI | REG 0X0F BIT 6 | LED3\n Serial.print(\"Manufacturer ID \");Serial.println(I2C_read(0xFE),HEX);\n Serial.print(\"Die ID \");Serial.println(I2C_read(0xFF),HEX);\n}\n\nvoid loop() {\n int ur1=(I2C_read(0x01)>>3);\n int u1=(I2C_read(0x02)>>3);\n int ur2=(I2C_read(0x03)>>3);\n int u2=(I2C_read(0x04)>>3);\n int ur3=(I2C_read(0x05)>>3);\n int u3=(I2C_read(0x06)>>3);\n int ur_s=(I2C_read(0x0D)>>1);\n bool err = (I2C_read(0x0f)>>6)&1;\n \n Serial.print(\"Ur_1 \");Serial.print(ur1,BIN);Serial.println(\" mV\");\n Serial.print(\"I_1 \");Serial.print(ur1*0.04/UR,1);Serial.println(\" mA\");\n Serial.print(\"U_1 \");Serial.print(u1*0.008);Serial.println(\" V\");\n Serial.println();\n Serial.print(\"Ur_2 \");Serial.print(ur2*0.04,3);Serial.println(\" mV\");\n Serial.print(\"I_2 \");Serial.print(ur2*0.04/UR,1);Serial.println(\" mA\");\n Serial.print(\"U_2 \");Serial.print(u2*0.008);Serial.println(\" V\");\n Serial.println();\n Serial.print(\"Ur_3 \");Serial.print(ur3*0.04,3);Serial.println(\" mV\");\n Serial.print(\"I_3 \");Serial.print(ur3*0.04/UR,1);Serial.println(\" mA\");\n Serial.print(\"U_3 \");Serial.print(u3*0.008);Serial.println(\" V\");\n \n u8g.firstPage(); \n do {\n u8g.setFont(u8g_font_profont15r);\n u8g.drawLine(0, 52, 128, 52);\n u8g.setPrintPos(0, 12);u8g.print(u1*0.008);u8g.drawStr(45,12,\"V\");\n u8g.setPrintPos(70, 12);u8g.print(ur1*0.00004/UR,3);u8g.drawStr(115,12,\"A\");\n\n u8g.setPrintPos(0, 30);u8g.print(u2*0.008);u8g.drawStr(45,30,\"V\");\n u8g.setPrintPos(70, 30);u8g.print(ur2*0.00004/UR,3);u8g.drawStr(115,30,\"A\");\n\n u8g.setPrintPos(0, 48);u8g.print(u3*0.008);u8g.drawStr(45,48,\"V\");\n u8g.setPrintPos(70, 48);u8g.print(ur3*0.00004/UR,3);u8g.drawStr(115,48,\"A\");\n\n u8g.setPrintPos(70, 64);u8g.print(ur_s*0.00004/UR,3);u8g.drawStr(115,64,\"A\");\n if(err==1){u8g.drawStr(0,64,\"ERROR\");}\n } while( u8g.nextPage() );\n delay(1000);\n}\n\n\nunsigned int I2C_read(byte reg){\n Wire.beginTransmission(ADDR);\n Wire.write(reg);\n Wire.endTransmission();\n Wire.requestFrom(ADDR,2);\n while(Wire.available()<1);\n unsigned int value = (Wire.read()<<8) | Wire.read();\n return value;\n } \n\nvoid I2C_write(byte reg, unsigned int data){ \n Wire.beginTransmission(ADDR);\n Wire.write(reg);\n Wire.write((data&0xFF00)>>8);\n Wire.write(data&0x00FF);\n Wire.endTransmission();\n }","type":"unstyled","key":"ah5om"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Ограничение по току:","type":"unstyled","key":"5u073"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"#define I_ogr 0.6 // A","type":"unordered-list-item","key":"1run7"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Считываем флаг редупреждения о превышении регистра суммы падений напряжений шунтов:","type":"unstyled","key":"c9o8d"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"bool err = (I2C_read(0x0f)>>6)&1;","type":"unordered-list-item","key":"6t6lv"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"Расчет значения ограничения тока для регистра контроля суммы токов:","type":"unstyled","key":"ajojg"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"ogr_i = (int)(I_ogr/0.0004)<<1;","type":"unordered-list-item","key":"5uk3j"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"I2C_write(0x0E, ogr_i);","type":"unordered-list-item","key":"8sah0"},{"data":{},"depth":0,"entityRanges":[{"key":1,"length":11,"offset":10}],"inlineStyleRanges":[],"text":"Даташит — ina3221.pdf","type":"unstyled","key":"2ob9f"},{"data":{},"depth":0,"entityRanges":[{"key":2,"length":29,"offset":11}],"inlineStyleRanges":[],"text":"Источник - http://rcl-radio.ru/?p=132614","type":"unstyled","key":"698d8"},{"data":{},"depth":0,"entityRanges":[],"inlineStyleRanges":[],"text":"","type":"marker","key":"vYQjIxndPss7TtkRNVsi"}],"entityMap":{"0":{"data":{"href":"https://github.com/Tinyu-Zhao/INA3221.git","url":"https://github.com/Tinyu-Zhao/INA3221.git"},"mutability":"MUTABLE","type":"LINK"},"1":{"data":{"href":"http://rcl-radio.ru/wp-content/uploads/2024/10/ina3221.pdf","url":"http://rcl-radio.ru/wp-content/uploads/2024/10/ina3221.pdf"},"mutability":"MUTABLE","type":"LINK"},"2":{"data":{"url":"http://rcl-radio.ru/?p=132614"},"mutability":"MUTABLE","type":"LINK"}}},"mentions":[]}