{"id":3712,"date":"2017-02-15T15:35:02","date_gmt":"2017-02-15T06:35:02","guid":{"rendered":"http:\/\/happytech.jp\/wordpress\/?p=3712"},"modified":"2021-12-04T23:43:27","modified_gmt":"2021-12-04T14:43:27","slug":"rtos-for-iot-mcu-necessity","status":"publish","type":"post","link":"https:\/\/happytech.jp\/wordpress\/2017\/02\/15\/rtos-for-iot-mcu-necessity\/","title":{"rendered":"RTOS\u3078\u306e\u5099\u3048\uff1a\u7b2c1\u56de\u3001RTOS\u306e\u5fc5\u8981\u6027"},"content":{"rendered":"<p>IoT MCU\u306e\u30bd\u30d5\u30c8\u958b\u767a\u306f\u3001RTOS\uff1aReal Time Operation System\u304c\u5fc5\u8981\u306b\u306a\u308b\u3068\u601d\u3044\u307e\u3059\u3002IoT\u5411\u3051\u3067\u306a\u3044\u901a\u5e38\u306eMCU\u958b\u767a\u3067\u3082\u901a\u4fe1UART\u5236\u5fa1\u306f\u9b3c\u9580\u3067\u3059\u3002IoT MCU\u306e\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u4f55\u306b\u6c7a\u307e\u308b\u304b\u306f\u4eca\u306e\u3068\u3053\u308d\u4e0d\u900f\u660e\u3067\u3059\u304c\u3001UART\u306b\u6bd4\u3079\u3066\u8907\u96d1\u306a\u901a\u4fe1\u51e6\u7406\u306b\u306a\u308b\u3053\u3068\u306f\u660e\u3089\u304b\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u5bfe\u7b56\u3068\u3057\u3066\u3001IoT\u5411\u3051MCU\u306eRTOS\u3092\u6570\u56de\u306b\u5206\u3051\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u9023\u8f09\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001RTOS\u304c\u7406\u89e3\u3067\u304d\u3001\u3044\u3056IoT MCU\u3067\u5b9f\u969b\u306bRTOS\u3092\u4f7f\u308f\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u304f\u306a\u3063\u305f\u6642\u306b\u3082\u614c\u3066\u305a\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2><span style=\"color: #008000;\">\u80cc\u666f<\/span><\/h2>\n<p>\u672c\u30d6\u30ed\u30b0\u306f\u3001IoT\u5411\u3051MCU\u306eRTOS\u3001<a href=\"http:\/\/www.freertos.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">FreeRTOS<\/a>\u3084<a href=\"http:\/\/happytech.jp\/wordpress\/2017\/01\/18\/cortex-m23-mbed-os-5-secure-iot-mcu\/\" target=\"_blank\" rel=\"noopener noreferrer\">mbed OS 5<\/a>\u3092\u8a18\u8f09\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u308c\u3089RTOS\u95a2\u9023\u306e\u8cc7\u6599\u306f\u3001\u5c11\u306a\u304b\u3089\u305a\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u30011\u304b\u308910\u307e\u3067\u66f8\u3044\u3066\u3044\u308b\u6559\u79d1\u66f8\u7684\u306a\u5185\u5bb9\u3067\u3001\u53c2\u8003\u66f8\u3068\u3057\u3066\u306f\u512a\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u6b8b\u696d\u6642\u9593\u306e\u5236\u9650\u304c\u53b3\u3057\u3044\u6628\u4eca\u3001\u5b9f\u52d9\u7684\u306b\u306f\u3082\u3063\u3068\u52b9\u7387\u7684\u306b\u7fd2\u5f97\u3057\u305f\u3044\u306e\u304c\u672c\u97f3\u3067\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001\u6700\u4f4e\u9650\u306eRTOS\u77e5\u8b58\u3068MCU\u8a55\u4fa1\u30dc\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u3001\u624b\u3063\u53d6\u308a\u65e9\u304f\u304a\u91d1\u3092\u304b\u3051\u305a\u306bRTOS\u3092\u7fd2\u5f97\u3059\u308b\u3053\u3068\u3092\u76ee\u6a19\u3068\u3057\u307e\u3059\u3002\u3053\u306e\u76ee\u6a19\u306b\u6cbf\u3063\u3066\u30d6\u30ed\u30b0\u8a18\u4e8b\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u306e\u958b\u767a\u74b0\u5883\u304c\u4e0b\u8a18\u3067\u3059\u3002<\/p>\n<p>\u4f7f\u7528RTOS\uff1aFreeRTOS\uff08NXP\u306eIDE\uff1aLPCXpresso\u7121\u6599\u7248\u306b\u4ed8\u5c5e\uff09<br \/>\nMCU\u8a55\u4fa1\u30dc\u30fc\u30c9\uff1aNXP LPCXpresso812\u307e\u305f\u306fLPCXpresso812\/824-MAX\u307e\u305f\u306fLPCXpresso1114\/5<br \/>\n\u203b\u8a18\u4e8b\u3067\u306fFreeRTOS v8.0.1\u3001LPCXpresso v8.2.2\u3001LPCOpen v2.19\uff08\u3044\u305a\u308c\u30822017\u5e742\u6708\u6700\u65b0\u306eLPCXpresso\u7121\u511f\u7248\u306b\u4ed8\u5c5e\uff09\u3068LPCxpresso824-MAX\u3092\u4f7f\u3044\u307e\u3059\u3002<br \/>\n\u203b<a href=\"http:\/\/www.freertos.org\/Documentation\/RTOS_book.html\" target=\"_blank\" rel=\"noopener noreferrer\">FreeRTOS Documentation<\/a>\u306b\u3042\u308b\u201cMastering the FreeRTOS Real Time Kernel &#8211; a Hands On Tutorial Guide\u201d\u304c\u53c2\u8003\u66f8\u3068\u3057\u3066\u304a\u52e7\u3081\u3067\u3059\u3002<\/p>\n<p>MCU\u306eLPC812\/824\u3001LPC1114\/5\u3067\u52d5\u4f5c\u3059\u308bFreeRTOS\u304c\u30dd\u30fc\u30c6\u30a3\u30f3\u30b0\u6e08\u307f\u3067\u3001\u304b\u3064\u79cb\u6708\u96fb\u5b50\u306a\u3069\u3067\u4f4e\u4fa1\u683c\u3067\u5165\u624b\u6027\u304c\u826f\u3044MCU\u8a55\u4fa1\u30dc\u30fc\u30c9\u3067\u52d5\u4f5c\u78ba\u8a8d\u3067\u304d\u308b\u3053\u3068\u304c\u9078\u5b9a\u7406\u7531\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_3714\" aria-describedby=\"caption-attachment-3714\" style=\"width: 700px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3714\" src=\"http:\/\/happytech.jp\/wordpress\/wp-content\/uploads\/2017\/02\/LPCXpresso824-MAX.png\" alt=\"LPCXpresso824-MAX\" width=\"700\" height=\"485\" srcset=\"https:\/\/happytech.jp\/wordpress\/wp-content\/uploads\/2017\/02\/LPCXpresso824-MAX.png 700w, https:\/\/happytech.jp\/wordpress\/wp-content\/uploads\/2017\/02\/LPCXpresso824-MAX-300x208.png 300w, https:\/\/happytech.jp\/wordpress\/wp-content\/uploads\/2017\/02\/LPCXpresso824-MAX-360x249.png 360w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><figcaption id=\"caption-attachment-3714\" class=\"wp-caption-text\">LPCXpresso824-MAX<\/figcaption><\/figure>\n<p>\u56e0\u307f\u306b\u3001LPCXpresso812\/1114\/1115\u8a55\u4fa1\u30dc\u30fc\u30c9\u3067\u52d5\u4f5c\u3059\u308b<a href=\"http:\/\/happytech.jp\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u5f0a\u793e\u30de\u30a4\u30b3\u30f3\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8<\/a>\u3082\u8ca9\u58f2\u4e2d\u3067\u3059\u3002\u3053\u306e\u30de\u30a4\u30b3\u30f3\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306b\u3088\u308b\u5f93\u6765\u30bd\u30d5\u30c8\u958b\u767a\u3068\u3001FreeRTOS\u306b\u3088\u308b\u30bd\u30d5\u30c8\u958b\u767a\u306e\u9055\u3044\u306a\u3069\u3067RTOS\u306e\u7279\u5fb4\u3092\u6d6e\u304d\u5f6b\u308a\u306b\u3057\u307e\u3059\u3002<\/p>\n<h2><span style=\"color: #008000;\">RTOS\u306e\u5fc5\u8981\u6027<\/span><\/h2>\n<p>\u8a55\u4fa1\u30dc\u30fc\u30c9\u5b9f\u88c5\u6e08\u307f\u306eLED\u3092\u70b9\u6ec5\u3055\u305b\u308b\u3044\u308f\u3086\u308b\u300cL\u30c1\u30ab\u300d\u30b5\u30f3\u30d7\u30eb\u30bd\u30d5\u30c8\u3092\u3001FreeRTOS\u5229\u7528\u6642\u306e\u30bd\u30fc\u30b9\u306e\u4e00\u90e8\uff08\u5de6\u5074\uff09\u3068\u3001RTOS\u672a\u4f7f\u7528\u306e\u901a\u5e38\u30bd\u30d5\u30c8\u8a18\u8ff0\uff08\u53f3\u5074\uff09\u3092\u793a\u3057\u307e\u3059\u3002\u6700\u5927\u306e\u9055\u3044\u306f\u3001\u7121\u9650\u30eb\u30fc\u30d7\u306e\u6570\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_3715\" aria-describedby=\"caption-attachment-3715\" style=\"width: 1341px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3715 size-full\" src=\"http:\/\/happytech.jp\/wordpress\/wp-content\/uploads\/2017\/02\/RTOS-LED-sample.png\" alt=\"RTOS LED sample\" width=\"1341\" height=\"504\" srcset=\"https:\/\/happytech.jp\/wordpress\/wp-content\/uploads\/2017\/02\/RTOS-LED-sample.png 1341w, https:\/\/happytech.jp\/wordpress\/wp-content\/uploads\/2017\/02\/RTOS-LED-sample-300x113.png 300w, https:\/\/happytech.jp\/wordpress\/wp-content\/uploads\/2017\/02\/RTOS-LED-sample-768x289.png 768w, https:\/\/happytech.jp\/wordpress\/wp-content\/uploads\/2017\/02\/RTOS-LED-sample-1024x385.png 1024w, https:\/\/happytech.jp\/wordpress\/wp-content\/uploads\/2017\/02\/RTOS-LED-sample-360x135.png 360w\" sizes=\"auto, (max-width: 1341px) 100vw, 1341px\" \/><figcaption id=\"caption-attachment-3715\" class=\"wp-caption-text\">RTOS LED sample\uff08\uff12\u30bf\u30b9\u30af\u306e\u307f\u629c\u7c8b\uff09<\/figcaption><\/figure>\n<p>FreeRTOS\u8a18\u8ff0\u306e\u5834\u5408\u30011\u500b\u306e\u30bf\u30b9\u30af\uff08\u2252\u30e6\u30fc\u30b6\u51e6\u7406\u5358\u4f4d\uff09\u30671\u500b\u306e\u7121\u9650\u30eb\u30fc\u30d7\u3092\u6301\u3061\u307e\u3059\u3002\u4e00\u65b9\u3001\u901a\u5e38\u30bd\u30d5\u30c8\u8a18\u8ff0\u306e\u5834\u5408\u306f\u3001\u5168\u4f53\u30671\u500b\u306e\u7121\u9650\u30eb\u30fc\u30d7\u306e\u307f\u3067\u3059\u30021\u500b\u306e\u7121\u9650\u30eb\u30fc\u30d7\u5185\u3067\u69d8\u3005\u306a\u30e6\u30fc\u30b6\u51e6\u7406\u3092\u884c\u3046\u305f\u3081\u3001\u30eb\u30fc\u30d7\u5185\u306e\uff11\u51e6\u7406\u6642\u9593\u306e\u9577\u3055\u3001\u77ed\u3055\u3001\u5f85\u3061\u304c\u305d\u306e\u4ed6\u306e\u51e6\u7406\u3078\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/p>\n<p>RTOS\u3092\u4f7f\u3046\u6700\u5927\u306e\u5229\u70b9\u306f\u30011\u3064\u306e\u30bf\u30b9\u30af\u5b9f\u884c\u6642\u9593\u306e\u5f71\u97ff\u304c\u3001\u4ed6\u306e\u30bf\u30b9\u30af\u3078\u53ca\u3070\u306a\u3044\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u304a\u304b\u3052\u3067\u3001\u3042\u305f\u304b\u3082\uff11\u3064\u306eMCU\u3092\u5360\u6709\u3059\u308b\u304b\u306e\u3088\u3046\u306b\u30e6\u30fc\u30b6\u30bf\u30b9\u30af\u8a18\u8ff0\u304c\u3067\u304d\u307e\u3059\u3002\u5f93\u3063\u3066\u30011\u500b\u306e\u30bf\u30b9\u30af\u304c\u30011\u500b\u306e\u7121\u9650\u30eb\u30fc\u30d7\u3092\u6301\u3064\u306e\u3067\u3059\u3002\u8907\u6570\u306e\u30bf\u30b9\u30af\u3078\u512a\u5148\u9806\u4f4d\u306b\u5fdc\u3058\u3066\u5b9f\u884c\u6642\u9593\u3092\u632f\u308a\u5206\u3051\u308b\u306e\u306f\u3001RTOS\u306e\u5f79\u76ee\u3067\u3059\u3002<\/p>\n<p>\u30e6\u30fc\u30b6\u30bf\u30b9\u30af\u306f\u3001\u4ed6\u306e\u30bf\u30b9\u30af\u306e\u3053\u3068\u3092\u6c17\u306b\u305b\u305a\u306b\u8a18\u8ff0\u3067\u304d\u308b\u305f\u3081\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u51e6\u7406\u306b\u306a\u308a\u30bf\u30b9\u30af\u5358\u4f4d\u306e\u53ef\u642c\u6027\u3082\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<p>RTOS\u3067\u306e\u30e6\u30fc\u30b6\u30bf\u30b9\u30af\u8a18\u8ff0\u306f\u3001\u901a\u5e38\u30bd\u30d5\u30c8\u8a18\u8ff0\u3068\u4f55\u3089\u5909\u308f\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u30021\u7121\u9650\u30eb\u30fc\u30d7\u5185\u306b\u30b7\u30f3\u30d7\u30eb\u306a\u51e6\u7406\u3092\u8a18\u8ff0\u3059\u308c\u3070\u826f\u3044\u306e\u3067\u3059\u3002\u305f\u3060\u3057\u3001RTOS\u5229\u7528\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3068\u3057\u3066\u3001\u30bf\u30b9\u30af\u306e\u767b\u9332\u3084\u512a\u5148\u9806\u4f4d\u306e\u8a2d\u5b9a\u306f\u5225\u9014\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2><span style=\"color: #008000;\">\u8981\u306fRTOS API\u3092\u8ffd\u52a0\u3059\u308b\u3060\u3051\uff01<\/span><\/h2>\n<p>RTOS\u306eL\u30c1\u30ab\u30b5\u30f3\u30d7\u30eb\u30bd\u30fc\u30b9\u306f\u3001FreeRTOS API\u3068LPCXpresso API\u3001\u6b8b\u308a\u304cC\u8a00\u8a9e\u306e3\u69cb\u6210\u3067\u3059\u3002<\/p>\n<p>LPCXpresso API\u3068C\u8a00\u8a9e\u306f\u3001\u901a\u5e38\u30bd\u30d5\u30c8\u8a18\u8ff0\u6642\u306b\u4f7f\u3046\u3082\u306e\u3068\u540c\u3058\u3067\u3059\u3002FreeRTOS API\u306f\u3001API\u306e\u982d\u306b\u5fc5\u305ax\u2026\u3001v\u2026\u3001ux\u2026\u306a\u3069\u304c\u4ed8\u3044\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u63a5\u982d\u8a9e\u306f\u3001FreeRTOS\u4ee5\u5916\u306eRTOS\u3067\u3082\u540c\u69d8\u3067\u3059\u3002RTOS\u30e6\u30fc\u30b6\u30bf\u30b9\u30af\u306e\u8a18\u8ff0\u306f\u3001\u901a\u5e38\u30bd\u30d5\u30c8\u306e\u8a18\u8ff0\u306b\u3001\u3053\u308c\u3089RTOS API\u304c\u52a0\u308f\u3063\u305f\u306e\u307f\u3067\u3059\u3002<\/p>\n<p>\u5f93\u3063\u3066FreeRTOS API\u306e\u4f7f\u3044\u65b9\u3092\u7406\u89e3\u3059\u308c\u3070\u3001FreeRTOS\u306b\u9650\u3089\u305a\u4ed6\u306eRTOS\u3078\u3082\u5fdc\u7528\u53ef\u80fd\u3067\u3059\u3002\u4f7f\u7528\u983b\u5ea6\u304c\u9ad8\u3044FreeRTOS API\u306e\u4f7f\u3044\u65b9\u3092\u7fd2\u5f97\u3059\u308c\u3070\u3001\u57fa\u672c\u7684\u306aRTOS\u30e6\u30fc\u30b6\u30bf\u30b9\u30af\u958b\u767a\u304c\u3067\u304d\u308b\u3068\u601d\u3044\u307e\u3059\u3002\u3053\u306e\u65b9\u6cd5\u3067IoT MCU\u306bRTOS\u304c\u9069\u7528\u3055\u308c\u305f\u6642\u3067\u3082\u3001\u614c\u3066\u305a\u306b\u5099\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2><span style=\"color: #008000;\">\u307e\u3068\u3081<\/span><\/h2>\n<p>\u4eca\u56de\u306f\u3001RTOS\u306e\u5229\u70b9\u3092\u8aac\u660e\u3057\u307e\u3057\u305f\u3002RTOS\u304c\u8907\u6570\u30e6\u30fc\u30b6\u30bf\u30b9\u30af\u306e\u512a\u5148\u9806\u4f4d\u306b\u5fdc\u3058\u3066MCU\u5b9f\u884c\u6642\u9593\u3092\u632f\u308a\u5206\u3051\u308b\u306e\u3067\u3001\u500b\u3005\u306e\u30e6\u30fc\u30b6\u30bf\u30b9\u30af\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u53ef\u642c\u6027\u306b\u512a\u308c\u305f\u8a18\u8ff0\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>IoT 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