{"id":94,"date":"2020-04-15T17:51:51","date_gmt":"2020-04-15T17:51:51","guid":{"rendered":"http:\/\/snowflake.forecast.mydns.jp\/?p=94"},"modified":"2020-04-15T17:51:51","modified_gmt":"2020-04-15T17:51:51","slug":"raspberry-pi-4%e3%81%ae%e6%b6%88%e8%b2%bb%e9%9b%bb%e5%8a%9b%e4%bd%8e%e6%b8%9b","status":"publish","type":"post","link":"https:\/\/tips.yomou.online\/?p=94","title":{"rendered":"Raspberry pi 4\u306e\u6d88\u8cbb\u96fb\u529b\u4f4e\u6e1b"},"content":{"rendered":"\n<p>\u767a\u71b1\u304c\u591a\u304f\u3066\u30b5\u30fc\u30d0\u3068\u3057\u3066\u306f\u590f\u3092\u8d8a\u3059\u306e\u304c\u96e3\u3057\u3044\u3068\u8003\u3048\u305fRaspberry pi4\u306b\u3064\u3044\u3066\u3001\u767a\u71b1\u3068\u6d88\u8cbb\u96fb\u529b\u306e\u4f4e\u6e1b\u304c\u3067\u304d\u306a\u3044\u304b\u3068\u8003\u3048\u3001\u3044\u308d\u3044\u308d\u3084\u3063\u3066\u307f\u305f\u3002<\/p>\n\n\n\n<p>\u96fb\u529b\u91cf\u3092\u56f3\u308b\u6a5f\u6750\u304c\u306a\u3044\u306e\u3067CPU\u6e29\u5ea6\u3060\u3051\u3067\u691c\u8a3c\u3057\u305f\u7d50\u679c\u3001\u4e0b\u306e\u30b0\u30e9\u30d5\u306e\u901a\u308a\u3002HDMI\u51fa\u529b\u3092off\u306b\u3059\u308b\u306e\u3068\u3001\u4e0d\u8981\u306aUSB\u30e1\u30e2\u30ea\u3092\u5916\u3059\u3053\u3068\u3067\u305d\u308c\u305e\u308c1\u5ea6\u307b\u3069\u6e29\u5ea6\u3092\u4e0b\u3052\u3089\u308c\u305f\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"http:\/\/snowflake.forecast.mydns.jp\/wp-content\/uploads\/2020\/04\/image-3.png\" alt=\"\" class=\"wp-image-96\"\/><figcaption> <br><em>\u30a8\u30a2\u30b3\u30f3\u309218\u2103\u306e\u8a2d\u5b9a\u3067\u6696\u623f\u7a3c\u50cd\u3057\u305f\u74b0\u5883\u3067\u306e\u7d50\u679c\u3002\u8d64\u70b9\u7dda\u306f4\u56de\u79fb\u52d5\u5e73\u5747\u3002<\/em> <\/figcaption><\/figure><\/div>\n\n\n\n<p>\u5f53\u521dCPU\u6e29\u5ea6\u306f \u5ba4\u6e29\u3068\u306e\u5dee\u304c\u304a\u304a\u3080\u306d22\u2103\u8fd1\u304b\u3063\u305f\u304c\u300120\u5ea6\u3092\u5207\u308b\u7a0b\u5ea6\u306b\u4e0b\u3052\u3089\u308c\u305f\u3002\u30e9\u30ba\u30d9\u30ea\u30fc\u30d1\u30a4\u306e\u96fb\u529b\u91cf\u306f \u307b\u307c\u3059\u3079\u3066\u71b1\u30a8\u30cd\u30eb\u30ae\u30fc\u306b\u5909\u63db\u3055\u308c\u308b\u306e\u3067\u3001CPU\u4ed8\u8fd1\u3067\u6d88\u8cbb\u3055\u308c\u308b\u96fb\u529b\u91cf\u308220\/22\u7a0b\u5ea6\u306b\u306f\u6291\u3048\u3089\u308c\u3066\u3044\u308b\u306f\u305a\u3002 \uff08USB\u30e1\u30e2\u30ea\u304c\u5c11\u3057\u96e2\u308c\u305fCPU\u306e\u6e29\u5ea6\u306b\u3069\u3046\u5f71\u97ff\u3059\u308b\u304b\u308f\u304b\u3089\u306a\u3044\u306e\u3067\u3001\u30e9\u30ba\u30d9\u30ea\u30fc\u30d1\u30a4\u5168\u4f53\u306e\u6d88\u8cbb\u96fb\u529b\u91cf\u306fCPU\u6e29\u5ea6\u304b\u3089\u306f\u898b\u7a4d\u3082\u308c\u306a\u3044\uff09<\/p>\n\n\n\n<p>\u4eca\u56de\u306e\u691c\u8a3c\u3067\u4f7f\u3063\u305f\u4e3b\u306a\u30b3\u30de\u30f3\u30c9\u3001\u9069\u7528\u3057\u305f\u8a2d\u5b9a\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$ sudo tvservice --off # HDMI\u51fa\u529b\u3092\u5236\u5fa1\u3059\u308b\u30b3\u30de\u30f3\u30c9\u3002--off\u3067\u51fa\u529b\u3092\u6b62\u3081\u3066\u3057\u307e\u3046\u3002<br><\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u4ee5\u4e0b\u306f \/boot\/config.txt \u306b\u9069\u7528\u3057\u518d\u8d77\u52d5\u3002<br>dtoverlay=pi3-disable-wifi   # wifi \u3092\u4f7f\u7528\u3057\u306a\u3044\u8a2d\u5b9a<br>dtoverlay=pi3-disable-bt     # Bluetooth \u3092\u4f7f\u7528\u3057\u306a\u3044\u8a2d\u5b9a<br>arm_freq_min=300  # \u7279\u306bCPU\u306b\u8ca0\u8377\u3092\u304b\u3051\u306a\u3044\u969b\u306e\u3001\u6700\u5c0f\u30af\u30ed\u30c3\u30af\u3092300MHz\u306b\u843d\u3068\u3059\u3002<br>arm_freq=700      # CPU\u306b\u8ca0\u8377\u3092\u304b\u3051\u308b\u969b\u306e\u6700\u5927\u30af\u30ed\u30c3\u30af\u3092700MHz\u306b\u843d\u3068\u3059\u3002<br>     #   raspbian\u306e\u521d\u671f\u8a2d\u5b9a\uff08\uff1f\uff09\u3067\u306f\u30af\u30ed\u30c3\u30af\u6570\u306f\u6700\u5c0f\u3067600MHz\u3001\u6700\u5927\u30671500MHz<br>over_voltage=-3 #CPU\u3078\u306e\u7d66\u96fb\u96fb\u5727\u30923\u30dd\u30a4\u30f3\u30c8\u4e0b\u3052\u308b\u3002<br># hdmi_force_hotplug=1 <br>   # \u2191\u306f\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\u3002\u30db\u30c3\u30c8\u30d7\u30e9\u30b0\u5411\u3053\u3046\u3067\u306a\u304f\u5b8c\u5168\u306b\u30aa\u30d5\u306b\u3057\u305f\u307b\u3046\u304c\u3044\u3044\u306e\u304b\u3082\uff1f<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u767a\u71b1\u304c\u591a\u304f\u3066\u30b5\u30fc\u30d0\u3068\u3057\u3066\u306f\u590f\u3092\u8d8a\u3059\u306e\u304c\u96e3<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4],"tags":[7],"class_list":["post-94","post","type-post","status-publish","format-standard","hentry","category-raspberry-pi","category-4","tag-raspberry-pi-4"],"_links":{"self":[{"href":"https:\/\/tips.yomou.online\/index.php?rest_route=\/wp\/v2\/posts\/94","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tips.yomou.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tips.yomou.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tips.yomou.online\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tips.yomou.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=94"}],"version-history":[{"count":0,"href":"https:\/\/tips.yomou.online\/index.php?rest_route=\/wp\/v2\/posts\/94\/revisions"}],"wp:attachment":[{"href":"https:\/\/tips.yomou.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=94"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tips.yomou.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=94"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tips.yomou.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=94"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}