{"id":964,"date":"2025-08-29T17:23:06","date_gmt":"2025-08-29T08:23:06","guid":{"rendered":"https:\/\/toyolabel.co.jp\/column\/?p=964"},"modified":"2025-08-29T17:23:06","modified_gmt":"2025-08-29T08:23:06","slug":"stm32%e3%81%aei2c","status":"publish","type":"post","link":"https:\/\/toyolabel.co.jp\/column\/?p=964","title":{"rendered":"STM32\u306eI2C"},"content":{"rendered":"
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\"\"<\/a><\/figure><\/div>\n\n\n

\uff11\uff0eI2C\u901a\u4fe1<\/strong><\/p>\n\n\n\n

ST\u30de\u30a4\u30af\u30ed\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u793e\u306eSTM32F446\u30de\u30a4\u30af\u30ed\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306b\u642d\u8f09\u3055\u308c\u3066\u3044\u308b\u30b7\u30ea\u30a2\u30eb\uff65\u30aa\u30fc\u30c7\u30a3\u30aa\uff65\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\uff08SAI\uff09\u3092\u5229\u7528\u3057\u305f\u591a\u30c1\u30e3\u30f3\u30cd\u30eb\u97f3\u58f0\u518d\u751f\u7528\u30aa\u30fc\u30c7\u30a3\u30aa\u57fa\u677f\u306e\u5236\u4f5c\u3067\u3001\u30a2\u30f3\u30d7\u3078\u306e\u51fa\u529b\u8abf\u6574\u7528\u306b\u30de\u30a4\u30b3\u30f3\u304b\u3089\u5236\u5fa1\u304c\u51fa\u6765\u308bMCP4451\u30c7\u30b8\u30bf\u30eb\u30dd\u30c6\u30f3\u30b7\u30e7\u30e1\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u30de\u30a4\u30b3\u30f3\u304b\u3089\u306fI2C\u901a\u4fe1\u3067\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\u306e\u3067\u3059\u304c\u3001\u305d\u306e\u6642\u306b\u767a\u751f\u3057\u305fI2C\u306e\u30c8\u30e9\u30d6\u30eb\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n

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\"\"<\/a>
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\uff12\uff0e\u30c8\u30e9\u30d6\u30eb\u767a\u751f<\/strong><\/p>\n\n\n\n

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\n
\n

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\n
\"\"<\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n

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\uff13\uff0e\u30ec\u30b8\u30b9\u30bf\u306e\u8a2d\u5b9a\u9806\u5e8f<\/strong><\/p>\n\n\n\n

ST\u30de\u30a4\u30af\u30ed\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u793e\u306e\u30b5\u30a4\u30c8\u3092\u691c\u7d22\u3057\u3066\u307f\u308b\u3068\u3001I2C\u7aef\u5b50\u306e\u8a2d\u5b9a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306e\u8a18\u4e8b\u3092\u898b\u3064\u3051\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\n
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\"\"<\/a><\/figure>\n<\/div>\n\n\n\n
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STM32CubeIDE\u304c\u751f\u6210\u3057\u305fI2C\u521d\u671f\u5316\u95a2\u6570\u306e\u5185\u5bb9\u3082\u3001\u8a18\u4e8b\u306e\u9806\u5e8f\u3067\u30ec\u30b8\u30b9\u30bf\u306e\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u3088\u3046\u3067\u3057\u305f\u304c\u3001\u5ff5\u306e\u305f\u3081\u30ec\u30b8\u30b9\u30bf\u8a2d\u5b9a\u95a2\u6570\u3092\u4f5c\u308a\u5b9f\u884c\u3002<\/p>\n\n\n\n

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\uff14\uff0eI2C\u901a\u4fe1\u95a2\u6570\u306e\u81ea\u4f5c<\/strong><\/p>\n\n\n\n

I2C\u7aef\u5b50\u306e\u4fe1\u53f7\u306e\u72b6\u614b\u306a\u3069\u3092\u8abf\u3079\u3066\u8abf\u6574\u3057\u3088\u3046\u3068\u601d\u3063\u305f\u306e\u3067\u3059\u304c\u3001\u307e\u305a\u30bd\u30d5\u30c8\u3067\u5bfe\u5fdc\u3057\u305f\u307f\u308b\u3053\u3068\u306b\u3057\u3001\u30de\u30a4\u30b3\u30f3\u306eI2C\u6a5f\u80fd\u3092\u4f7f\u3046\u4e8b\u3092\u8ae6\u3081\u3066\u3001I2C\u7aef\u5b50\u3092\u901a\u5e38\u306eGPIO\u3068\u3057\u3066\u4f7f\u3063\u3066I2C\u306e\u901a\u4fe1\u90e8\u5206\u3092\u81ea\u4f5c\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002\u30de\u30a4\u30b3\u30f3\u306eGPIO\u3092\u64cd\u4f5c\u3059\u308bAPI\u95a2\u6570\u3092\u4f7f\u3063\u3066\u30b7\u30ea\u30a2\u30eb\u30af\u30ed\u30c3\u30af\uff08SCL\uff09\u3068\u30b7\u30ea\u30a2\u30eb\u30c7\u30fc\u30bf\uff08SDA\uff09\u306e\u7aef\u5b50\u304b\u3089ON\uff0fOFF\u3092\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

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\uff15\uff0e\u3042\u3068\u304c\u304d<\/strong><\/p>\n\n\n\n

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<\/p>\n\n\n\n\n

\n

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