\u601d\u3063\u3066\u3044\u305fCRC32\u3068\u306f\u5c11\u3057\u9055\u3046<\/a>)<\/p>\n<\/blockquote>\n\u666e\u901a\u306f\u4e00\u756a\u5de6\u306e\u30d3\u30c3\u30c8\u304cMSB\u3001\u53f3\u306e\u30d3\u30c3\u30c8\u3092LSB\u3068\u8a00\u3046\u3002<\/p>\n
\u53f3\u9001\u308a\u306f\u30c7\u30fc\u30bf\u3092\u53f3\u30b7\u30d5\u30c8\u3057\u306a\u304c\u3089\u3001\u3059\u306a\u308f\u3061LSB\u5074\u304b\u3089\u9806\u756a\u306b\u8a08\u7b97\u3059\u308b\u3053\u3068\u306a\u306e\u3067\u3001\u3053\u306e\u30de\u30a4\u30b3\u30f3\u306e\u8aac\u660e\u66f8\u3067\u306fLSB\u30d5\u30a1\u30fc\u30b9\u30c8\u3068\u66f8\u304b\u308c\u3066\u3044\u305f\u3002<\/p>\n
\u3068\u3053\u308d\u304c\u3001\u3053\u306e\u30de\u30a4\u30b3\u30f3\u306eCRC\u8a08\u7b97\u56de\u8def\u306f\u5de6\u9001\u308a\u304c\u6a19\u6e96\u3068\u306a\u3063\u3066\u3044\u308b\u3002\u3051\u3069\u3001\u53f3\u9001\u308a\u306eCRC\u304c\u306a\u3044\u308f\u3051\u3067\u3082\u306a\u3044\u3057\u3002<\/p>\n
\n \u89e3\u305b\u306a\u3044\u306e\u304c\u30d0\u30a4\u30c8\u30aa\u30fc\u30c0\u30fc\u304c\u30d3\u30c3\u30af\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u3068\u3044\u3046\u3053\u3068\u3002<\/p>\n
\u3053\u306e\u30de\u30a4\u30b3\u30f3\u306e\u30d7\u30ed\u30bb\u30c3\u30b5\u30fc\u306f\u30ea\u30c8\u30eb\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306a\u306e\u306b\u3001\u306a\u305c\u304bCRC\u8a08\u7b97\u56de\u8def\u306f\u30d3\u30c3\u30af\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306b\u306a\u3063\u3066\u3044\u308b\u3002<\/p>\n
\u30d0\u30a4\u30c8\u30aa\u30fc\u30c0\u30fc\u3068\u306f\u3001\u8907\u6570\u30d0\u30a4\u30c8\u306e\u30c7\u30fc\u30bf\u3001\u4f8b\u3048\u307032bit\u306e\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\u3059\u308b\u3068\u304d\u306e\u30d0\u30a4\u30c8\u9806\u3092\u8868\u3057\u3066\u3044\u308b\u3002<\/p>\n
\u30d3\u30c3\u30af\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306f1\u30d0\u30a4\u30c8\u76ee\u306bMSB\u304c\u542b\u307e\u308c\u308b\u30d0\u30a4\u30c8\u304c\u3001\u30ea\u30c8\u30eb\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306f1\u30d0\u30a4\u30c8\u76ee\u306bLSB\u304c\u542b\u307e\u308c\u308b\u30d0\u30a4\u30c8\u304c\u683c\u7d0d\u3055\u308c\u308b\u3002<\/p>\n
16\u9032\u6570\u30670x12345678\u3068\u3044\u3046\u30c7\u30fc\u30bf\u3092 12 34 56 78\u3068\u4e26\u3079\u308b\u306e\u304c\u30d3\u30c3\u30af\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u300178 56 34 12\u3068\u4e26\u3079\u308b\u306e\u304c\u30ea\u30c8\u30eb\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u3067\u3042\u308b\u3002<\/p>\n
\u3053\u306e\u3042\u305f\u308a\u306f\u30d7\u30ed\u30bb\u30c3\u30b5\u30fc\u306b\u3088\u308b\u3093\u3060\u3051\u3069\u3001\u30ea\u30c8\u30eb\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306e\u30d7\u30ed\u30bb\u30c3\u30b5\u30fc\u304c\u4e3b\u6d41\u306e\u3088\u3046\u3002<\/p>\n
\u3068\u3044\u3046\u308f\u3051\u3067\u3001\u30e1\u30e2\u30ea\u4e0a\u306b12 34 56 78 9A BC DE F0 \u3068\u683c\u7d0d\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u30014\u30d0\u30a4\u30c8\u305a\u3064\u8aad\u307f\u8fbc\u3080\u3068 0x78563412, 0xF0DECB9A \u3068\u89e3\u91c8\u3055\u308c\u308b\u3002<\/p>\n
\u3068\u3053\u308d\u304c\u6a19\u6e96\u8a2d\u5b9a\u306e\u307e\u307eCRC\u8a08\u7b97\u56de\u8def\u306b 0x78563412 \u3092\u8ee2\u9001\u3059\u308b\u3068\u300178 56 34 12 \u3068\u3044\u3046\u9806\u756a\u3067\u3001\u5404\u3005\u5de6\u9001\u308a\u3067CRC\u8a08\u7b97\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u3002<\/p>\n
\u8907\u6570\u30d0\u30a4\u30c8\u4e00\u62ec\u3067CRC\u8a08\u7b97\u56de\u8def\u306b\u8ee2\u9001\u3059\u308b\u3068\u3001\u30c7\u30fc\u30bf\u306e\u9806\u756a\u304c\u9006\u306b\u306a\u3063\u3061\u3083\u3063\u3066\u308b\u3093\u3060\u3088\u306d\u3002<\/p>\n
\n\u305f\u3060\u3001\u5de6\u9001\u308a\u3001\u30d3\u30c3\u30af\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u304c\u5b9f\u969b\u306b\u4f7f\u3044\u305f\u3044CRC\u306e\u8a08\u7b97\u65b9\u5f0f\u3068\u306f\u9650\u3089\u306a\u3044\u306e\u3067\u3001<\/p>\n
CRC\u8a08\u7b97\u56de\u8def\u306e\u524d\u5f8c\u3067\u3001\u30d0\u30a4\u30c8\u9806\u53cd\u8ee2\u3001\u30d3\u30c3\u30c8\u9806\u53cd\u8ee2\u3092\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u3002<\/p>\n
\u53f3\u9001\u308a\u30fb\u30ea\u30c8\u30eb\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306e\u5834\u5408\u306f\u3001\u5165\u529b\u30fb\u51fa\u529b\u3068\u3082\u306b\u3001\u30d0\u30a4\u30c8\u9806\u53cd\u8ee2\u3001\u30d3\u30c3\u30c8\u5358\u4f4d\u3067\u30d3\u30c3\u30c8\u9806\u53cd\u8ee2 \u3092\u6709\u52b9\u306b\u3059\u308c\u3070\u3088\u3044\u3002<\/p>\n
\u30d3\u30c3\u30c8\u9806\u3092\u53cd\u8ee2\u3057\u3066\u5165\u529b\u3057\u3066\u5de6\u9001\u308a\u3067\u8a08\u7b97\u3059\u308c\u3070\u3001\u53f3\u9001\u308a\u3067CRC\u8a08\u7b97\u3057\u305f\u7d50\u679c\u306e\u30d3\u30c3\u30c8\u9806\u53cd\u8ee2\u306b\u306a\u308b\u306e\u3067\u3001\u307e\u305f\u53cd\u8ee2\u3059\u308c\u3070\u3088\u3044\u3068\u3044\u3046\u3053\u3068\u3089\u3057\u3044\u3002<\/p>\n
\u5de6\u9001\u308a\u30fb\u30ea\u30c8\u30eb\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306e\u5834\u5408\u306f\u3001\u5165\u529b\u5074\u306e\u307f\u30d0\u30a4\u30c8\u9806\u53cd\u8ee2\u306b\u3059\u308c\u3070\u3088\u3044\u306f\u305a\u3002<\/p>\n
\n\u3068\u3044\u3046\u308f\u3051\u3067\u3001\u6b63\u3057\u304f\u8a2d\u5b9a\u3092\u3059\u308c\u3070\u3069\u3046\u3063\u3066\u3053\u3068\u306f\u306a\u3044\u308f\u3051\u3060\u304c\u30011\u3064\u554f\u984c\u304c\u3042\u3063\u305f\u3002<\/p>\n
\u305d\u308c\u304cCRC\u8a08\u7b97\u306e\u521d\u671f\u5024\u3060\u3002<\/p>\n
CRC\u8a08\u7b97\u306e\u521d\u671f\u5024\u3068\u3057\u3066\u306f 0x00000000 \u3068 0xFFFFFFFF \u304c\u3088\u304f\u4f7f\u308f\u308c\u308b\u3002<\/p>\n
\u4e16\u9593\u7684\u306b\u306f0xFFFFFFFF\u306e\u65b9\u304c\u3088\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u3088\u3046\u3060\u304c\u3001\u3046\u3061\u306e\u88fd\u54c1\u7fa4\u3067\u306f\u5c02\u30890x00000000\u3067\u3059\u306d\u3002<\/p>\n
\u3044\u305a\u308c\u306b\u305b\u3088\u521d\u671f\u5024\u3092\u4efb\u610f\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u4ed5\u7d44\u307f\u3092\u4ed8\u3051\u3066\u304a\u3051\u3070\u3088\u3044\u3002<\/p>\n
\u305d\u306e\u6a5f\u80fd\u3092\u4f7f\u3063\u3066\u3001\u4e00\u9023\u306eCRC\u6f14\u7b97\u3092\u5206\u5272\u3057\u3066\u884c\u304a\u3046\u3068\u3057\u305f\u3002<\/p>\n
\u521d\u671f\u50240x00000000\u304b\u3089CRC\u6f14\u7b97\u30920\u30d0\u30a4\u30c8\u76ee\u304b\u3089N\u30d0\u30a4\u30c8\u76ee\u307e\u3067\u8a08\u7b97\u3057\u3066\u3001\u305d\u306eCRC(\u30d3\u30c3\u30c8\u53cd\u8ee2\u306a\u3057)\u304c0xEDB88320\u3060\u3063\u305f\u3068\u3059\u308b\u3002<\/p>\n
\u6b21\u306b\u521d\u671f\u50240xEDB88320\u304b\u3089N+1\u30d0\u30a4\u30c8\u76ee\u304b\u3089M\u30d0\u30a4\u30c8\u76ee\u307e\u3067CRC\u3092\u8a08\u7b97\u3059\u308b\u3001\u305d\u3046\u3057\u3066\u6c42\u307e\u308bCRC\u306f0\uff5eM\u30d0\u30a4\u30c8\u76ee\u306e\u30c7\u30fc\u30bf\u306eCRC\u5024\u306b\u306a\u308b\u3002<\/p>\n
\n\u3068\u3053\u308d\u304c\u3053\u3046\u3084\u3063\u3066\u8a08\u7b97\u3059\u308b\u3068\u3001\u7d50\u679c\u304c\u5408\u308f\u306a\u3044\u3093\u3060\u3088\u306d\u3002<\/p>\n
\u305d\u308c\u3067\u304a\u304b\u3057\u3044\u306a\u3041\u3063\u3066\u30c7\u30d0\u30c3\u30ac\u3067\u8abf\u3079\u3066\u307f\u305f\u3089\u3001\u521d\u671f\u5024\u306b\u5024\u3092\u8a2d\u5b9a\u3057\u3066\u3001\u306a\u306b\u3082\u8a08\u7b97\u305b\u305a\u306b\u8aad\u307f\u51fa\u3059\u3068\u30d3\u30c3\u30c8\u9806\u304c\u53cd\u8ee2\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u6c17\u3065\u3044\u305f\u3002<\/p>\n
\u3059\u306a\u308f\u3061\u521d\u671f\u50240xEDB88320\u3092\u30bb\u30c3\u30c8\u3057\u305f\u3089\u3001\u9014\u7aef\u306b\u7d50\u679c\u304c0x04C11DB7\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3060\u3002<\/p>\n
\u305d\u308c\u3067\u904e\u53bb\u306e\u540c\u69d8\u306e\u5b9f\u88c5\u4f8b\u3092\u8abf\u3079\u305f\u3089\u3001\u9014\u4e2d\u306e\u8a08\u7b97\u3067\u306f\u51fa\u529b\u5074\u306e\u30d0\u30a4\u30c8\u9806\u53cd\u8ee2\u3001\u30d3\u30c3\u30c8\u5358\u4f4d\u3067\u30d3\u30c3\u30c8\u9806\u53cd\u8ee2\u3092\u7121\u52b9\u5316\u3057\u3066\u3001<\/p>\n
\u6700\u5f8c\u306e\u8a08\u7b97\u306e\u3068\u304d\u3060\u3051\u3001\u30d0\u30a4\u30c8\u9806\u53cd\u8ee2\u3001\u30d3\u30c3\u30c8\u5358\u4f4d\u3067\u30d3\u30c3\u30c8\u9806\u53cd\u8ee2\u3092\u6709\u52b9\u306b\u3059\u308b\u3068\u3044\u3046\u65b9\u6cd5\u3092\u53d6\u3063\u3066\u3044\u305f\u3002<\/p>\n
\u3053\u3093\u306a\u4f7f\u3044\u5206\u3051\u3092\u3057\u3066\u308b\u306a\u3093\u3066\u4eca\u307e\u3067\u6c17\u3065\u3044\u3066\u306a\u304b\u3063\u305f\u3051\u3069\u3001\u305d\u3046\u3060\u3063\u305f\u3093\u3060\u306d\u30021\u767a\u8a08\u7b97\u3068\u540c\u3058\u3060\u3068\u601d\u3063\u3066\u3044\u305f\u3002<\/p>\n
\n \u3061\u306a\u307f\u306b\u521d\u671f\u5024\u30920x00000000 \u3068 0xFFFFFFFF \u3092\u30bb\u30c3\u30c8\u3059\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u30d3\u30c3\u30c8\u9806\u304c\u53cd\u8ee2\u3067\u3082\u4f55\u306e\u554f\u984c\u3082\u306a\u3044\u3002<\/p>\n
\u3060\u3063\u3066\u30d3\u30c3\u30c8\u9806\u3092\u53cd\u8ee2\u3057\u3066\u30820x00000000 \u3068 0xFFFFFFFF\u3060\u304b\u3089\u306d\u3002\u3060\u304b\u3089\u53f3\u9001\u308a\u30fb\u5de6\u9001\u308a\u3068\u3082\u306b\u3053\u306e\u5024\u3092\u521d\u671f\u5024\u306b\u8a2d\u5b9a\u3059\u308c\u3070\u3088\u3044\u3002<\/p>\n
\u5178\u578b\u7684\u306a\u30b1\u30fc\u30b9\u3067\u306f\u554f\u984c\u306b\u306a\u3089\u306a\u3044\u3053\u3068\u304b\u3089\u3001\u30de\u30a4\u30b3\u30f3\u306e\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u3082\u306f\u3063\u304d\u308a\u3068\u306f\u66f8\u304b\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u3002<\/p>\n
\u56de\u8def\u69cb\u6210\u3092\u8aad\u307f\u89e3\u304f\u3068\u3001\u306a\u305c\u3053\u3046\u306a\u308b\u304b\u306f\u308f\u304b\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u305f\u3051\u3069\u3001\u3061\u3087\u3063\u3068\u5fae\u5999\u3067\u3059\u306d\u3002<\/p>\n
\n\u305d\u3082\u305d\u3082\u3001\u306a\u3093\u3067\u30ea\u30c8\u30eb\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306e\u30d7\u30ed\u30bb\u30c3\u30b5\u30fc\u306b\u30d3\u30c3\u30af\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u30fb\u5de6\u9001\u308a\u304c\u6a19\u6e96\u306eCRC\u6f14\u7b97\u56de\u8def\u3092\u8f09\u305b\u3066\u308b\u3093\u3060\u3063\u3066\u8a71\u3060\u3051\u3069\u3002<\/p>\n
\u30de\u30a4\u30b3\u30f3\u306e\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u306f\u3001CRC16\u3067\u306f\u5de6\u9001\u308a\u304c\u6a19\u6e96\u3063\u307d\u3044\u3053\u3068\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\u3051\u3069\u3001\u50d5\u304c\u77e5\u308b\u9650\u308a\u3067\u306fCRC16\u3082\u53f3\u9001\u308a\u304c\u4e3b\u6d41\u3060\u3068\u601d\u3046\u3093\u3060\u3051\u3069\u306d\u3002<\/p>\n
\u5de6\u9001\u308a+\u30d3\u30c3\u30af\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u3068\u3044\u3046\u306e\u306f\u3001\u6700\u521d\u306e\u30d0\u30a4\u30c8\u306eMSB\u304b\u3089\u9806\u756a\u306b\u3068\u3044\u3046\u70b9\u3067\u306f\u4e00\u8cab\u6027\u304c\u3042\u308b\u3051\u3069\u3001<\/p>\n
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