{"id":482,"date":"2021-02-23T00:00:50","date_gmt":"2021-02-22T15:00:50","guid":{"rendered":"https:\/\/www.ekit-tech.com\/?p=482"},"modified":"2021-12-06T22:03:15","modified_gmt":"2021-12-06T13:03:15","slug":"%e3%83%a9%e3%82%ba%e3%83%91%e3%82%a4zero%e3%81%a7gpio%ef%bc%88pwm%ef%bc%89%e3%81%8b%e3%82%89%e9%9f%b3%e3%82%92%e5%87%ba%e3%81%99%e3%81%ae%e3%82%92%e8%ab%a6%e3%82%81%e3%81%9f%e8%a9%b1%ef%bc%8f%e5%86%85","status":"publish","type":"post","link":"https:\/\/www.ekit-tech.com\/?p=482","title":{"rendered":"\u30e9\u30ba\u30d1\u30a4ZERO\u3067GPIO\uff08PWM\uff09\u304b\u3089\u97f3\u3092\u51fa\u3059\u306e\u3092\u8ae6\u3081\u305f\u8a71\uff0f\u5185\u8535\u30aa\u30fc\u30c7\u30a3\u30aaBCM2835\u3092\u8a8d\u8b58\u3057\u306a\u3044"},"content":{"rendered":"\n
\"\u30e9\u30ba\u30d1\u30a4ZERO\u3068\u30b9\u30d4\u30fc\u30ab\u30fc\"<\/a><\/figure>\n\n\n\n

\u30e9\u30ba\u30d1\u30a4ZERO\u3067GPIO\uff08PWM\uff09\u304b\u3089\u97f3\u3092\u51fa\u3059\u305f\u3081\u3001\u4e38\uff12\u65e5\u30cf\u30de\u30ea\u307e\u3057\u305f\u304c\u3001\u7121\u7406\u3067\u3057\u305f\u30fb\u30fb\u30fb<\/p>\n\n\n\n

\u3057\u304b\u3057\u3001\u3082\u3057\u304b\u3057\u305f\u3089\u4f55\u3060\u304b\u306e\u30d2\u30f3\u30c8\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u306e\u3067\u3001\u8a18\u9332\u3068\u3057\u3066\u6b8b\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u6700\u7d42\u7684\u306b\u5206\u304b\u3063\u305f\u306e\u306f\u3001\u3069\u3046\u3084\u30892020\u5e7412\u6708\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305fRaspberry Pi OS\u3060\u3068\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u306e\u5b9f\u4f53\u304c\u306a\u3044\u3068\u3001\u5185\u8535\u30aa\u30fc\u30c7\u30a3\u30aaBCM2835\u3092\u8a8d\u8b58\u3057\u306a\u304f\u306a\u3063\u305f\uff1f<\/p>\n\n\n\n

PiZero\u306b\u30b5\u30a6\u30f3\u30c9\u30ab\u30fc\u30c9\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093(\u82f1\u8a33\uff09<\/a><\/p>\n\n\n\n

\u2191\u306e\u8a18\u4e8b\u306b\u66f8\u304b\u308c\u3066\u3044\u308b\u3088\u3046\u306b\u3001<\/p>\n\n\n\n

sudo nano \/boot\/config.txt<\/code><\/pre>\n\n\n\n
\u306b\u4e0b\u8a18\u306e\u30b3\u30de\u30f3\u30c9\u3092\u8ffd\u8a18\u2193<\/p>\n\n\n\n
dtoverlay = audremap\u3001enable_jack = on<\/code><\/pre>\n\n\n\n
\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30d0\u30a4\u30b9\u3092\u78ba\u8a8d\u2193<\/p>\n\n\n\n
aplay -l<\/code><\/pre>\n\n\n\n
\u3053\u308c\u3067\u3001\u4e00\u5fdc\u300cbcm2835 Headphones\u300d\u3092\u8a8d\u8b58\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\u305f\u3060\u3001\u4ed6\u306e\u65b9\u304c\u7d39\u4ecb\u3055\u308c\u3066\u3044\u308b\u8a18\u4e8b\u306e\u3088\u3046\u306a\u8868\u793a\u3068\u306f\u9055\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u3061\u306a\u307f\u306b\u3001\u300caudremap\u300d\u306f\u4f55\u3092\u610f\u5473\u3059\u308b\u306e\u304b\uff1f<\/p>\n\n\n\n
  • PWM\u30b5\u30a6\u30f3\u30c9\u51fa\u529b\u3092\u30d4\u30f312\u304a\u3088\u307313\u306b\u5207\u308a\u66ff\u3048\u307e\u3059<\/li>
  • swap_lr\u30c1\u30e3\u30cd\u30eb\u5272\u308a\u5f53\u3066\u3092\u9006\u306b\u3059\u308b<\/li>
  • \u30aa\u30fc\u30c7\u30a3\u30aa\u30b8\u30e3\u30c3\u30af\u306e\u51fa\u529b\u3092\u5165\u308c\u66ff\u3048\u308b\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u30aa\u30d5\uff09<\/li>
  • enable_jack\u30aa\u30fc\u30c7\u30a3\u30aa\u30b8\u30e3\u30c3\u30af\u51fa\u529b\u3092\u30aa\u30d5\u306b\u3057\u307e\u305b\u3093\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u30aa\u30d5\uff09<\/li><\/ul>\n\n\n\n
    \u3053\u3053\u304b\u3089\u5148\u306f\u4ed6\u306b\u60c5\u5831\u3082\u306a\u304f\u3001\u624b\u8a70\u307e\u308a\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
    \u4ee5\u964d\u3001\u8a66\u3057\u305f\u30aa\u30fc\u30c7\u30a3\u30aa\u95a2\u9023\u306e\u30b3\u30de\u30f3\u30c9\u3092\u307e\u3068\u3081\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<\/div>
    raspi-config\u304c\u8d77\u52d5\u3057\u306a\u3044<\/b><\/h2>
    \n\n\n\n
    \u30aa\u30fc\u30c7\u30a3\u30aa\u306e\u51fa\u529b\u65b9\u6cd5\u3092\u5909\u66f4\u3057\u3088\u3046\u3068\u300craspi-config\u300d\u306e\u8d77\u52d5\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u2193<\/p>\n\n\n\n
    sudo raspi-config<\/code><\/pre>\n\n\n\n
    \u3068\u3053\u308d\u304c\u3001\u300craspi-config\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u300d\u3068\u306e\u30a8\u30e9\u30fc\u304c\u8868\u793a\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
    sudo raspi-config command not found<\/code><\/pre>\n\n\n\n
    \u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u300craspi-config\u300d\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3002<\/p>\n\n\n\n
    sudo apt-get install raspi-config<\/code><\/pre>\n\n\n\n
    \u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u5165\u3063\u3066\u3044\u306a\u304b\u3063\u305f\u3082\u3088\u3046\u3002<\/p>\n\n\n\n<\/div>
    raspi-config\u306eAidio\u306e\u5834\u6240\u304c\u9055\u3046<\/h2>
    \n\n\n\n
    \u591a\u304f\u306e\u65b9\u304cAudio\u3092HDMI\u304b\u3089PCM\u306b\u5909\u66f4\u3059\u308b\u65b9\u6cd5\u3068\u3057\u3066\u3001<\/p>\n\n\n\n
    \uff3braspi-config\uff3d\uff0d\uff3bAdvanced Opstions\uff3d\uff0d \uff3bAudio\uff3d \uff0d \uff3bForce 3.5mm (Headphone)\uff3d<\/p>\n\n\n\n
    \u3068\u66f8\u3044\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
    \u3068\u3053\u308d\u304c\u3001\u79c1\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u6700\u65b0\u7248\u306eOS\u3067\u306f\u3001<\/p>\n\n\n\n
    \uff3braspi-config\uff3d\uff0d\uff3b\uff11 System Options\uff3d \uff0d \uff3bS2 Audio\uff3d<\/p>\n\n\n\n
    \u3068\u306a\u3063\u3066\u304a\u308a\u3001Audio\u306e\u4f4d\u7f6e\u304c\u5909\u308f\u3063\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
    \u203b\u306a\u304a\u3001\u30af\u30ea\u30c3\u30af\u3057\u305f\u3068\u3053\u308d\u3067\u4f55\u3082\u8d77\u3053\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n\n\n\n<\/div>
    \u30aa\u30f3\u30dc\u30fc\u30c9\u306e\u30aa\u30fc\u30c7\u30a3\u30aa\u3092\u6709\u52b9\u306b<\/h2>
    \n\n\n\n
    \u300c\/boot\/config.txt\u300d\u306b\u300cdtparam=audio=on\u300d\u3092\u8ffd\u8a18\u3002<\/p>\n\n\n\n
    \u3059\u3067\u306b\u8a18\u5165\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<\/div>
    PWM\u30d4\u30f3\u306e\u8a2d\u5b9a<\/h2>
    \n\n\n\n
    sudo gpio -g mode 13 pwm<\/code><\/pre>\n\n\n\n
    sudo gpio -g mode 18 pwm<\/code><\/pre>\n\n\n\n
    gpio readall\u30b3\u30de\u30f3\u30c9\u3067\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308d\u3001\u30d4\u30f3\u306e\u72b6\u614b\u306f\u3001<\/p>\n\n\n\n
    • GPIO13 \u2192 ALT0<\/li>
    • GPIO18 \u2192 ALT5<\/li><\/ul>\n\n\n\n
      \u306b\u5909\u308f\u3063\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<\/div>
      \u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u78ba\u8a8d<\/h2>
      \n\n\n\n
      sudo cat \/etc\/modules<\/code><\/pre>\n\n\n\n
      \u672c\u6765\u306a\u3089\u300csnd_bcm2835\u300d\u304c\u8868\u793a\u3055\u308c\u308b\u3089\u3057\u3044\u306e\u3067\u3059\u304c\u3001\u4f55\u3082\u8868\u793a\u3055\u308c\u305a\u3002<\/p>\n\n\n\n<\/div>
      \u30ed\u30fc\u30c9\u6e08\u307f\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u78ba\u8a8d<\/h2>
      \n\n\n\n
      lsmod<\/code><\/pre>\n\n\n\n
      snd-bcm2835\u304c\u5165\u3063\u3066\u3044\u305f\u306e\u3067\u3001\u8aad\u307f\u8fbc\u307e\u308c\u3066\u306f\u3044\u308b\u307f\u305f\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<\/div>
      \u5168\u3066\u306e\u30b5\u30a6\u30f3\u30c9\u30ab\u30fc\u30c9\u3068\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30d0\u30a4\u30b9\u3092\u8868\u793a<\/h2>
      \n\n\n\n
      aplay -l<\/code><\/pre>\n\n\n\n
      \u30a8\u30e9\u30fc<\/p>\n\n\n\n
      aplay: device_list:272: no soundcards found...<\/code><\/pre>\n\n\n\n<\/div>
      \u5168\u3066\u306e\u5b9a\u7fa9\u3055\u308c\u305f PCM\u3092\u8868\u793a<\/h2>
      \n\n\n\n
      aplay -L<\/code><\/pre>\n\n\n\n
      \u8a8d\u8b58\u3055\u308c\u305a\u3002<\/p>\n\n\n\n
      null\n    Discard all samples (playback) or generate zero samples (capture)<\/code><\/pre>\n\n\n\n<\/div>
      \u30b5\u30a6\u30f3\u30c9\u30ab\u30fc\u30c9\u306e\u78ba\u8a8d<\/h2>
      \n\n\n\n
      cat \/proc\/asound\/cards<\/code><\/pre>\n\n\n\n
      \u8a8d\u8b58\u3055\u308c\u305a\u3002<\/p>\n\n\n\n
      --- no soundcards ---<\/code><\/pre>\n\n\n\n<\/div>
      \u30b5\u30a6\u30f3\u30c9\u30b7\u30b9\u30c6\u30e0\u300calsa\u300d\u306e\u518d\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h2>
      \n\n\n\n
      sudo apt-get remove  alsa-utils<\/code><\/pre>\n\n\n\n
      sudo apt-get install alsa-utils<\/code><\/pre>\n\n\n\n
      sudo reboot<\/code><\/pre>\n\n\n\n<\/div>
      \u97f3\u3092\u9cf4\u3089\u3059\u30dd\u30fc\u30c8\u306e\u9078\u629e<\/h2>
      \n\n\n\n
      • 0\uff1aauto<\/li>
      • 1\uff1aanalog<\/li>
      • 2\uff1ahdmi<\/li><\/ul>\n\n\n\n
        \u300c\u30a2\u30ca\u30ed\u30b0\u300d\u3092\u9078\u629e\u2193<\/p>\n\n\n\n
        amixer cset numid=3 1<\/code><\/pre>\n\n\n\n
        \u30a8\u30e9\u30fc<\/p>\n\n\n\n
        amixer: Control default open error: No such file or directory<\/code><\/pre>\n\n\n\n<\/div>
        snd-bcm2835\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u8ffd\u52a0<\/h2>
        \n\n\n\n
        sudo modprobe snd-bcm2835<\/code><\/pre>\n\n\n\n
        \u4f55\u3082\u8d77\u3053\u3089\u305a\u3002<\/p>\n\n\n\n<\/div>
        \u30e9\u30ba\u30d1\u30a4\u304c\u8a8d\u8b58\u3057\u3066\u3044\u308b\u30aa\u30fc\u30c7\u30a3\u30aa\u3092\u30ea\u30bb\u30c3\u30c8\uff1f<\/h2>
        \n\n\n\n
        \u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30d0\u30a4\u30b9\u3092\u629c\u304d\u5dee\u3057\u3057\u3066\u3001\u518d\u8d77\u52d5\u3059\u308b\u3068\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30d0\u30a4\u30b9\u3092\u8a8d\u8b58\u3059\u308b\u5834\u5408\u304c\u3042\u308b\u3089\u3057\u3044\u3002<\/p>\n\n\n\n<\/div>
        \u30b5\u30a6\u30f3\u30c9\u30df\u30ad\u30b5\u30fc\u95a2\u4fc2\u306e\u8868\u793a<\/h2>
        \n\n\n\n
        \u30b5\u30a6\u30f3\u30c9\u30df\u30ad\u30b5\u30fc\u306e\u8868\u793a<\/p>\n\n\n\n
        alsamixer<\/code><\/pre>\n\n\n\n
        \u30b5\u30a6\u30f3\u30c9\u30df\u30ad\u30b5\u30fc\u306e\u72b6\u614b\u3092\u8868\u793a<\/p>\n\n\n\n
        amixer<\/code><\/pre>\n\n\n\n<\/div>
        \u30b5\u30f3\u30d7\u30eb\u518d\u751f<\/h2>
        \n\n\n\n
        \u5143\u3005\u5165\u3063\u3066\u3044\u308b\u30b5\u30f3\u30d7\u30eb\u97f3\u3092\u518d\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
        sudo aplay \/usr\/share\/sounds\/alsa\/Noise.wav<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
        \u30e9\u30ba\u30d1\u30a4ZERO\u3067GPIO\uff08PWM\uff09\u304b\u3089\u97f3\u3092\u51fa\u3059\u305f\u3081\u3001\u4e38\uff12\u65e5\u30cf\u30de\u30ea\u307e\u3057\u305f\u304c\u3001\u7121\u7406\u3067\u3057\u305f\u30fb\u30fb\u30fb \u3057\u304b\u3057\u3001\u3082\u3057\u304b\u3057\u305f\u3089\u4f55\u3060\u304b\u306e\u30d2\u30f3\u30c8\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u306e\u3067\u3001\u8a18\u9332\u3068\u3057\u3066\u6b8b\u3057\u3066\u304a\u304d\u307e\u3059\u3002 \u6700\u7d42\u7684\u306b\u5206\u304b\u3063\u305f\u306e\u306f\u3001\u3069\u3046\u3084\u30892020\u5e74 […]<\/p>\n","protected":false},"author":1,"featured_media":491,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[55],"_links":{"self":[{"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=\/wp\/v2\/posts\/482"}],"collection":[{"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=482"}],"version-history":[{"count":12,"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=\/wp\/v2\/posts\/482\/revisions"}],"predecessor-version":[{"id":686,"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=\/wp\/v2\/posts\/482\/revisions\/686"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=\/wp\/v2\/media\/491"}],"wp:attachment":[{"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ekit-tech.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}