{"type":"rich","provider_url":"https://hatena.blog","height":"190","categories":[],"blog_url":"https://na6ko.hatenadiary.jp/","provider_name":"Hatena Blog","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fna6ko.hatenadiary.jp%2Fentry%2F2025%2F10%2F13%2F224538\" title=\"\u97f3\u95a2\u9023\u306e\u30af\u30ed\u30c3\u30af\u306e\u8fd1\u4f3c - naruko\u306e\u958b\u767a\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"na6ko","title":"\u97f3\u95a2\u9023\u306e\u30af\u30ed\u30c3\u30af\u306e\u8fd1\u4f3c","image_url":null,"author_url":"https://blog.hatena.ne.jp/na6ko/","description":"FPGA \u3067\u97f3\u95a2\u9023\u306e\u56de\u8def\u3092\u4f5c\u308d\u3046\u3068\u3059\u308b\u3068 master clock \u304c I2S \u306e\u90fd\u5408\u306712.28800 MHz \u3067\u97f3\u6e90IC\u304c 3.579545 MHz \u3068\u3044\u3046\u5834\u5408\u306b\u3069\u3046\u5bfe\u5fdc\u3059\u308b\u304b\u82e6\u616e\u3059\u308b\u5834\u5408\u304c\u3088\u304f\u3042\u308b.12.28800 MHz \u306e clock domain \u3067 3.579545 MHz \u306e device \u3092\u52d5\u304b\u3059\u5834\u5408\u306b\u5206\u5468\u3057\u3066\u52d5\u304b\u3059\u65b9\u6cd5\u304c\u3042\u308b. 12.288 / 3.57945 = 3.43... \u3067\u5272\u308a\u5207\u308c\u306a\u3044\u306e\u3067 3 \u5206\u5468\u30684\u5206\u5468\u3092\u6df7\u305c\u308b\u3053\u3068\u3067\u5e73\u5747\u306e\u5468\u6ce2\u6570\u3092 3.57945 ... \u306b\u8fd1\u4f3c\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u308b.\u5206\u5b50\u5206\u6bcd\u304c\u6574\u6570\u306e\u5206\u6570\u306f ruby \u3067\u3042\u308c\u3070 Rational \u3067\u4f5c\u308a\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u2026","url":"https://na6ko.hatenadiary.jp/entry/2025/10/13/224538","published":"2025-10-13 22:45:38","version":"1.0","blog_title":"naruko\u306e\u958b\u767a\u30e1\u30e2"}