{"id":3603,"date":"2015-02-26T12:00:00","date_gmt":"2015-02-26T03:00:00","guid":{"rendered":"http:\/\/www.nanghi.net\/?p=3603"},"modified":"2023-11-08T20:46:51","modified_gmt":"2023-11-08T11:46:51","slug":"avri2c","status":"publish","type":"post","link":"https:\/\/www.nanghi.net\/?p=3603","title":{"rendered":"AVR\u3067I2<\/sup>C"},"content":{"rendered":"

\u3000\u9032\u3081\u3066\u3044\u308bDAC\u30e6\u30cb\u30c3\u30c8\u3067I2<\/sup>C\u3092\u4f7f\u3046\u95a2\u4fc2\u3067\u72ec\u7acb\u30c7\u30d0\u30c3\u30b0\u3002<\/p>\n

\"I\/O\u30a8\u30af\u30b9\u30d1\u30f3\u30c0\u57fa\u677f\"
\n\u3000I\/O\u30a8\u30af\u30b9\u30d1\u30f3\u30c0\u57fa\u677f<\/strong>\uff08\u6e96\u5099\u4e2d\uff09<\/p>\n

\u3000USB DAC\u306e\u88fd\u4f5c\u3067I2<\/sup>C\u3067\u306e\u901a\u4fe1\u30eb\u30fc\u30c1\u30f3\u3092AVR GCC\u3067\u66f8\u3044\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3069\u3046\u3082\u5b9c\u3057\u304f\u7121\u3044\u72b6\u614b\u306a\u306e\u3067I2<\/sup>C\u3060\u3051\u3092\u4e2d\u5fc3\u3068\u3057\u305f\u30c6\u30b9\u30c8\u30dc\u30fc\u30c9\u3092\u7528\u610f\u3057\u30c7\u30d0\u30a4\u30b9\u5236\u5fa1\u3092\u884c\u3063\u3066\u78ba\u304b\u3081\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002
\n\u3000Microchip\u304b\u3089\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3066\u3044\u308bI2<\/sup>C\u901a\u4fe1\u3092\u4f7f\u3063\u3066\u3084\u308a\u53d6\u308a\u3059\u308bI\/O\u30a8\u30af\u30b9\u30d1\u30f3\u30c0MCP23017\u3092\u4f7f\u3063\u3066\u30c7\u30d0\u30a4\u30b9\u5236\u5fa1\u3092\u884c\u3063\u3066\u78ba\u8a8d\u3092\u3057\u307e\u3059\u3002LED\u3092\u63a5\u7d9a\u3057\u3066\u30dd\u30fc\u30c8\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u30028bit\u30dd\u30fc\u30c8\u304c2\u7d44\u3042\u308a\u307e\u3059\u304c\u3001\u7247\u65b9\u306e\u30dd\u30fc\u30c8\u3092\u51fa\u529b\u306b\u3001\u3082\u3046\u7247\u65b9\u306e\u30dd\u30fc\u30c8\u3092\u5165\u529b\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002
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\n\u3000\u5b9f\u969b\u306f\u4f7f\u308f\u306a\u3044\u306e\u3067\u3059\u304c\u30c7\u30d0\u30a4\u30b9\u306e\u6a5f\u80fd\u3092\u5168\u3066\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u4f5c\u308a\u8fbc\u307f\u3057\u3066\u3044\u307e\u3059\u3002
\n\u3000RESET\u3092\u30dc\u30fc\u30c9\u5358\u72ec\u3067\u3067\u304d\u308b\u3088\u3046\u306b\u30b9\u30a4\u30c3\u30c1\u3092\u4ed8\u3051\u3001\u5272\u308a\u8fbc\u307f\u30d4\u30f3\u3082\u30d7\u30eb\u30a2\u30c3\u30d7\u3092\u30b8\u30e3\u30f3\u30d1\u30fc\u30d4\u30f3\u3092\u4ecb\u3057\u3066\u884c\u3044\u3001\u30b8\u30e3\u30f3\u30d1\u30fc\u30d4\u30f3\u3092\u5916\u305b\u3070\u5916\u90e8\u304b\u3089\u306e\u5165\u529b\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u5272\u308a\u8fbc\u307f\u306e\u8a2d\u5b9a\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u30a2\u30af\u30c6\u30a3\u30d6Lo\u306a\u305f\u3081\u3067\u3059\u3002\u307e\u305f\u3001\u30c7\u30d0\u30a4\u30b9\u30a2\u30c9\u30ec\u30b9\u306e\u4e0b\u4f4d\uff13\u30d3\u30c3\u30c8\u3082\u30b7\u30e7\u30fc\u30c8\u30d4\u30f3\u3067\u8a2d\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002
\n\u3000I2<\/sup>C\u30d0\u30b9\u306e\u30d7\u30eb\u30a2\u30c3\u30d7\u62b5\u6297\u304c\u672a\u5b9f\u88c5\u3067\u3059\u304c\u3001\u62b5\u6297\u306e\u5024\u306f\u601d\u6848\u4e2d\u3067\u3059\u3002\u62b5\u6297\u5024\u304c\u5927\u304d\u3059\u304e\u308b\u3068\u6d6e\u904a\u5bb9\u91cf\u304c\u5f71\u97ff\u3057\u3066\u901a\u4fe1\u6642\u306b\u652f\u969c\u304c\u51fa\u307e\u3059\u3057\u3001\u5c0f\u3055\u304f\u3057\u3059\u304e\u308b\u3068\u4eca\u5ea6\u306f\u30d0\u30b9\u306e\u30c9\u30e9\u30a4\u30d6\u80fd\u529b\u306b\u5f71\u97ff\u304c\u51fa\u3066\u3001\u4fe1\u53f7\u3092Lo\u307e\u3067\u5f15\u3063\u5f35\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3061\u3083\u3093\u3068\u6761\u4ef6\u304b\u3089\u8a08\u7b97\u3059\u308c\u3070\u826f\u3044\u306e\u3067\u3059\u304c\u3001\u305d\u3053\u3092\u7aef\u6298\u3063\u3066\uff08\u7b11\uff09\u59cb\u3081\u306f1.5k\u03a9\u3042\u305f\u308a\u3067\u884c\u304a\u3046\u304b\u3068\u3002
\n\u3000PCM1792\u3067\u306f\u8aad\u307f\u51fa\u3057\u304c\u4e0a\u624b\u304f\u51fa\u6765\u3066\u3044\u306a\u3044\u3088\u3046\u3067\u3057\u305f\u306e\u3067\u305d\u306e\u3042\u305f\u308a\u3092\u91cd\u70b9\u7684\u306b\u884c\u3046\u4e88\u5b9a\u3067\u3059\u3002
\n\u3000\u5358\u7d14\u306b\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u9593\u9055\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u8aad\u307f\u51fa\u3057\u6642\u306e\u30c7\u30fc\u30bf\u304c\u5168\u3066\u306e\u30d3\u30c3\u30c8\u3067\uff11\u306b\u306a\u3063\u3066\u304a\u308a\u3001\u3069\u3046\u3082\u307e\u3068\u3082\u306a\u30c7\u30fc\u30bf\u304c\u5f97\u3089\u308c\u3066\u3044\u306a\u3044\u304b\u8aad\u307f\u8fbc\u307f\u52d5\u4f5c\u304c\u3067\u304d\u3066\u3044\u306a\u3044\u3088\u3046\u3067\u3059\u3002
\n\u3000\u3057\u3070\u3089\u304f\u3001\u3053\u306e\u30dc\u30fc\u30c9\u3092\u4f7f\u3063\u3066I2<\/sup>C\u306e\u901a\u4fe1\u306b\u3064\u3044\u3066\u3001\u5fa9\u7fd2\u306e\u610f\u5473\u3082\u8fbc\u3081\u30d7\u30ed\u30c8\u30b3\u30eb\u3082\u542b\u3081\u3066\u691c\u8a3c\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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