{"id":3841,"date":"2025-06-23T14:34:22","date_gmt":"2025-06-23T06:34:22","guid":{"rendered":"https:\/\/www.key-iot.com\/?p=3841"},"modified":"2025-06-23T14:34:22","modified_gmt":"2025-06-23T06:34:22","slug":"design-practice-16-key-considerations-for-can-bus-application-design","status":"publish","type":"post","link":"https:\/\/www.key-iot.com\/zh_tw\/blog\/design-practice-16-key-considerations-for-can-bus-application-design\/","title":{"rendered":"\u8a2d\u8a08\u5be6\u52d9 16\uff1aCAN Bus \u61c9\u7528\u7a0b\u5f0f\u8a2d\u8a08\u7684\u4e3b\u8981\u8003\u616e\u56e0\u7d20"},"content":{"rendered":"
<\/div>\n
\"7a385b2bcd0c8c0cab43075e12655d61\"<\/div>\n
<\/div>\n
\u7684\u00a0\u63a7\u5236\u5668\u5340\u57df\u7db2\u8def (CAN)<\/strong>\u00a0\u662f\u535a\u4e16\u958b\u767c\u7684\u4e00\u7a2e\u73fe\u5834\u532f\u6d41\u6392\u6280\u8853\uff0c\u57fa\u672c\u4e0a\u662f\u4e00\u7a2e\u4e32\u5217\u7570\u6b65\u901a\u8a0a\u532f\u6d41\u6392\u3002\u5b83\u5ee3\u6cdb\u61c9\u7528\u65bc\u6c7d\u8eca\u96fb\u5b50\u63a7\u5236\u7cfb\u7d71\u548c\u5de5\u696d\u63a7\u5236\u5834\u666f\u3002.<\/span><\/div>\n
\n

CAN \u532f\u6d41\u6392\u6982\u89c0<\/h2>\n

CAN \u532f\u6d41\u6392\u8207 RS485 \u532f\u6d41\u6392\u76f8\u4f3c\uff0c\u90fd\u4f7f\u7528\u5dee\u52d5\u8a0a\u865f\u7dda\u9032\u884c\u50b3\u8f38\u3002CAN \u4e2d\u7684\u5169\u689d\u4fe1\u865f\u7dda\u662f\u00a0CAN_H<\/strong>\u00a0\u548c\u00a0CAN_L<\/strong>, \uff0c\u5176\u4fe1\u865f\u5e45\u5ea6\u76f8\u7b49\uff0c\u4f46\u76f8\u4f4d\u76f8\u53cd\u3002\u9019\u5169\u689d\u7dda\u4e4b\u9593\u7684\u96fb\u58d3\u5dee\u4ee3\u8868\u908f\u8f2f\u96fb\u5e73\uff1a<\/span><\/p>\n

    \n
  • \u6b63\u96fb\u58d3\u5dee\u8868\u793a\u908f\u8f2f\u00a00<\/strong>.<\/li>\n
  • \u96f6\uff08\u6216\u8ca0\uff09\u96fb\u58d3\u5dee\u8868\u793a\u908f\u8f2f\u00a01<\/strong>.<\/li>\n<\/ul>\n<\/div>\n
    \u76f8\u8f03\u65bc RS485\uff0cCAN \u901a\u8a0a\u5354\u5b9a\u66f4\u70ba\u8907\u96dc\u3002RS485 \u901a\u5e38\u4f7f\u7528 MCU \u4e2d\u7684 UART \u6a21\u7d44\uff0c\u800c CAN \u5247\u9700\u8981\u5c08\u7528\u7684\u00a0CAN \u63a7\u5236\u5668<\/strong>. .\u5982\u679c MCU \u6c92\u6709\u5167\u5efa CAN \u63a7\u5236\u5668\uff0c\u5247\u9700\u8981\u5916\u63a5 CAN \u63a7\u5236\u5668\u6676\u7247\u3002.<\/span><\/div>\n
    \n

    \u5178\u578b\u7684 CAN \u532f\u6d41\u6392\u5be6\u4f5c<\/h2>\n

    CAN \u532f\u6d41\u6392\u7cfb\u7d71\u901a\u5e38\u5305\u62ec<\/span><\/p>\n

      \n
    • MCU<\/strong>\u00a0(\u5fae\u63a7\u5236\u5668\u55ae\u5143\uff09<\/li>\n
    • CAN \u63a7\u5236\u5668<\/strong><\/li>\n
    • CAN \u6536\u767c\u5668<\/strong><\/li>\n<\/ul>\n<\/div>\n
      \u4ee5\u4e0b\u662f CAN \u532f\u6d41\u6392\u7cfb\u7d71\u7684\u5178\u578b\u6536\u767c\u5668\u4ecb\u9762\u96fb\u8def\uff1a<\/span><\/div>\n
      (\u8a3b\uff1a\u539f\u6587\u4e2d\u63d0\u5230\u7684\u5716\u8868\u672a\u5305\u542b\u5728\u6b64)\u3002<\/em><\/span><\/div>\n
      \n

      CAN \u532f\u6d41\u6392\u6a19\u6e96<\/h2>\n

      CAN \u532f\u6d41\u6392\u5df2\u6f14\u8b8a\u70ba\u5169\u7a2e\u570b\u969b\u6a19\u6e96\uff1a\u00a0ISO11519<\/strong>\u00a0\u548c\u00a0ISO11898<\/strong>. .\u5b83\u5011\u7684\u4e3b\u8981\u5dee\u7570\u5982\u4e0b\uff1a<\/span><\/div>\n

      \n
        \n
      1. ISO11898 (\u9ad8\u901f\u3001\u77ed\u8ddd\u96e2\u9589\u8ff4\u8def\u7db2\u8def)<\/strong>:\n
          \n
        • \u6700\u5927\u532f\u6d41\u6392\u9577\u5ea6\uff1a\u00a040 \u516c\u5c3a<\/strong><\/li>\n
        • \u6700\u5927\u901a\u8a0a\u901f\u5ea6\uff1a\u00a01 Mbps<\/strong><\/li>\n
        • \u9700\u8981\u4e00\u500b\u00a0120 \u6b50\u59c6\u7d42\u7aef\u96fb\u963b<\/strong>\u00a0\u5728\u7e3d\u7dda\u7684\u5169\u7aef\u3002.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div>\n
          \n
            \n
          1. ISO11519-2 (\u4f4e\u901f\u3001\u9577\u8ddd\u96e2\u958b\u74b0\u7db2\u8def)<\/strong>:\n
              \n
            • \u6700\u5927\u50b3\u8f38\u8ddd\u96e2\uff1a\u00a01 \u516c\u91cc<\/strong><\/li>\n
            • \u6700\u5927\u901a\u8a0a\u901f\u5ea6\uff1a\u00a0125 kbps<\/strong><\/li>\n
            • \u6bcf\u689d\u516c\u8eca\u7dda\u90fd\u9700\u8981\u00a02.2 k\u03a9 \u4e32\u806f\u96fb\u963b<\/strong>. .\u9019\u5169\u689d\u7dda\u8def\u662f\u7368\u7acb\u7684\uff0c\u4e0d\u6703\u5f62\u6210\u9589\u5408\u8ff4\u8def\u3002.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div>\n
              \n

              \u5be6\u969b\u8a2d\u8a08\u8003\u91cf<\/h2>\n

              \u5728\u8a2d\u8a08 CAN \u532f\u6d41\u6392\u7cfb\u7d71\u6642\uff0c\u5e03\u7dda\u65b9\u6cd5\u53d6\u6c7a\u65bc MCU \u7684 CAN \u63a7\u5236\u5668\u7684\u7279\u6027\u3002\u4f8b\u5982\u00a0STM32F103<\/strong>\u00a0\u5fae\u63a7\u5236\u5668\u5177\u6709\u4ee5\u4e0b CAN \u63a7\u5236\u5668\u529f\u80fd\uff1a<\/span><\/p>\n

                \n
              • \u652f\u63f4\u00a0CAN2.0A<\/strong>\u00a0\u548c\u00a0CAN2.0B<\/strong>\u00a0\u5354\u8b70\u3002.<\/li>\n
              • \u901a\u8a0a\u901f\u5ea6\u9ad8\u9054\u00a01 Mbps<\/strong>.<\/li>\n
              • \u6b78\u985e\u70ba\u9ad8\u901f\u532f\u6d41\u6392\u3002.<\/li>\n<\/ul>\n<\/div>\n
                \u56e0\u6b64\uff0c\u70ba STM32F103 \u8a2d\u8a08\u9031\u908a\u6536\u767c\u5668\u96fb\u8def\u6642\uff0c\u7d42\u7aef\u96fb\u963b\u7684\u914d\u7f6e\u61c9\u9075\u5faa\u00a0ISO11898 \u6a19\u6e96<\/strong>\u00a0(\u5373\u7e3d\u7dda\u5169\u7aef\u7684 120 \u6b50\u59c6\u96fb\u963b\uff09\u3002.<\/span><\/div>\n
                \n

                \u7e3d\u7d50<\/h2>\n

                CAN \u532f\u6d41\u6392\u662f\u4e00\u7a2e\u7a69\u5065\u53ef\u9760\u7684\u901a\u8a0a\u5354\u5b9a\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u6c7d\u8eca\u548c\u5de5\u696d\u61c9\u7528\u3002\u5b83\u7684\u8a2d\u8a08\u9700\u8981\u4ed4\u7d30\u8003\u616e\u7279\u5b9a\u7684\u6a19\u6e96 (ISO11898 \u6216 ISO11519) \u4ee5\u53ca MCU \u548c\u6536\u767c\u5668\u5143\u4ef6\u7684\u7279\u6027\u3002\u5728\u4e0b\u4e00\u671f\u4e2d\uff0c\u6211\u5011\u5c07\u96c6\u4e2d\u5206\u6790 CAN \u901a\u8a0a\u5354\u5b9a\u672c\u8eab\u7684\u7d30\u7bc0\u3002.<\/span><\/div>\n

                <\/div>\n
                <\/div>","protected":false},"excerpt":{"rendered":"

                The\u00a0Controller Area Network (CAN)\u00a0is a field bus technology developed by Bosch, essentially a serial asynchronous communication bus. It is widely used in automotive electronic control systems and industrial control scenarios. Overview of CAN Bus The CAN bus is similar to the RS485 bus in that both use differential signal lines for transmission. The two signal […]<\/p>\n","protected":false},"author":1,"featured_media":3845,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3841","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"metadata":{"classic-editor-remember":["classic-editor"],"_edit_lock":["1750660404:1"],"_edit_last":["1"],"_thumbnail_id":["3845"],"themepark_seo_title":["Design Practice 16: Key Considerations for CAN Bus Application Design"],"themepark_seo_description":["The\u00a0Controller Area Network (CAN)\u00a0is a field bus technology developed by Bosch, essentially a serial asynchronous communication bus. It is widely used in automotive electronic control systems and industrial control scenarios."],"themepark_seo_keyword":[" CAN Bus"],"catce":["sidebar-widgets4"],"_yoast_wpseo_primary_category":["16"],"_yoast_wpseo_metadesc":["The\u00a0Controller Area Network (CAN)\u00a0is a field bus technology developed by Bosch, essentially a serial asynchronous communication bus. 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