{"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\/blog\/design-practice-16-key-considerations-for-can-bus-application-design\/","title":{"rendered":"\u8bbe\u8ba1\u5b9e\u8df5 16\uff1aCAN \u603b\u7ebf\u5e94\u7528\u8bbe\u8ba1\u7684\u4e3b\u8981\u8003\u8651\u56e0\u7d20"},"content":{"rendered":"
<\/div>\n
\"7a385b2bcd0c8c0cab43075e12655d61\"<\/div>\n
<\/div>\n
\"(\u300a\u4e16\u754c\u4eba\u6743\u5ba3\u8a00\u300b)\u00a0\u63a7\u5236\u5668\u5c40\u57df\u7f51\uff08CAN\uff09<\/strong>\u00a0\u662f\u535a\u4e16\u5f00\u53d1\u7684\u4e00\u79cd\u73b0\u573a\u603b\u7ebf\u6280\u672f\uff0c\u672c\u8d28\u4e0a\u662f\u4e00\u79cd\u4e32\u884c\u5f02\u6b65\u901a\u4fe1\u603b\u7ebf\u3002\u5b83\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6c7d\u8f66\u7535\u5b50\u63a7\u5236\u7cfb\u7edf\u548c\u5de5\u4e1a\u63a7\u5236\u573a\u5408\u3002<\/span><\/div>\n
\n

CAN \u603b\u7ebf\u6982\u8ff0<\/h2>\n

CAN \u603b\u7ebf\u4e0e RS485 \u603b\u7ebf\u76f8\u4f3c\uff0c\u90fd\u4f7f\u7528\u5dee\u5206\u4fe1\u53f7\u7ebf\u8fdb\u884c\u4f20\u8f93\u3002CAN \u4e2d\u7684\u4e24\u6761\u4fe1\u53f7\u7ebf\u662f\u00a0CAN_H<\/strong>\u00a0\u548c\u00a0CAN_L<\/strong>\uff0c\u5b83\u4eec\u7684\u4fe1\u53f7\u5e45\u5ea6\u76f8\u7b49\uff0c\u4f46\u76f8\u4f4d\u76f8\u53cd\u3002\u8fd9\u4e24\u6761\u7ebf\u4e4b\u95f4\u7684\u7535\u538b\u5dee\u4ee3\u8868\u903b\u8f91\u7535\u5e73\uff1a<\/span><\/p>\n

    \n
  • \u6b63\u7535\u538b\u5dee\u8868\u793a\u903b\u8f91\u00a00<\/strong>.<\/li>\n
  • \u96f6\uff08\u6216\u8d1f\uff09\u7535\u538b\u5dee\u8868\u793a\u903b\u8f91\u00a01<\/strong>.<\/li>\n<\/ul>\n<\/div>\n
    \u4e0e RS485 \u76f8\u6bd4\uff0cCAN \u534f\u8bae\u66f4\u4e3a\u590d\u6742\u3002RS485 \u901a\u5e38\u4f7f\u7528 MCU \u4e2d\u7684 UART \u6a21\u5757\uff0c\u800c CAN \u5219\u9700\u8981\u4e00\u4e2a\u4e13\u95e8\u7684\u00a0CAN \u63a7\u5236\u5668<\/strong>.\u5982\u679c MCU \u6ca1\u6709\u5185\u7f6e CAN \u63a7\u5236\u5668\uff0c\u5219\u9700\u8981\u5916\u63a5 CAN \u63a7\u5236\u82af\u7247\u3002<\/span><\/div>\n
    \n

    \u5178\u578b CAN \u603b\u7ebf\u5b9e\u73b0<\/h2>\n

    CAN \u603b\u7ebf\u7cfb\u7edf\u901a\u5e38\u5305\u62ec<\/span><\/p>\n

      \n
    • \u5355\u7247\u673a<\/strong>\u00a0(\u5fae\u63a7\u5236\u5668\u5355\u5143\uff09<\/li>\n
    • CAN \u63a7\u5236\u5668<\/strong><\/li>\n
    • CAN \u6536\u53d1\u5668<\/strong><\/li>\n<\/ul>\n<\/div>\n
      \u4ee5\u4e0b\u662f CAN \u603b\u7ebf\u7cfb\u7edf\u7684\u5178\u578b\u6536\u53d1\u5668\u63a5\u53e3\u7535\u8def\uff1a<\/span><\/div>\n
      (\u6ce8\uff1a\u539f\u6587\u4e2d\u63d0\u5230\u7684\u56fe\u8868\u4e0d\u5728\u6b64\u5904\u3002\uff09<\/em><\/span><\/div>\n
      \n

      CAN \u603b\u7ebf\u6807\u51c6<\/h2>\n

      CAN \u603b\u7ebf\u5df2\u53d1\u5c55\u6210\u4e3a\u4e24\u4e2a\u56fd\u9645\u6807\u51c6\uff1a\u00a0ISO11519<\/strong>\u00a0\u548c\u00a0ISO11898<\/strong>.\u5b83\u4eec\u7684\u4e3b\u8981\u533a\u522b\u5982\u4e0b\uff1a<\/span><\/div>\n

      \n
        \n
      1. ISO11898\uff08\u9ad8\u901f\u3001\u77ed\u8ddd\u79bb\u95ed\u73af\u7f51\u7edc\uff09<\/strong>:\n
          \n
        • \u6700\u5927\u603b\u7ebf\u957f\u5ea6\uff1a\u00a040 \u7c73<\/strong><\/li>\n
        • \u6700\u5927\u901a\u4fe1\u901f\u5ea6\uff1a\u00a01 Mbps<\/strong><\/li>\n
        • \u9700\u8981\u00a0120 \u6b27\u59c6\u7ec8\u7aef\u7535\u963b\u5668<\/strong>\u00a0\u5728\u5df4\u58eb\u7684\u4e24\u7aef\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div>\n
          \n
            \n
          1. ISO11519-2\uff08\u4f4e\u901f\u957f\u8ddd\u79bb\u5f00\u73af\u7f51\u7edc\uff09<\/strong>:\n
              \n
            • \u6700\u5927\u4f20\u8f93\u8ddd\u79bb\uff1a\u00a01 \u516c\u91cc<\/strong><\/li>\n
            • \u6700\u5927\u901a\u4fe1\u901f\u5ea6\uff1a\u00a0125 kbps<\/strong><\/li>\n
            • \u6bcf\u6761\u516c\u4ea4\u7ebf\u8def\u9700\u8981\u00a02.2 k\u03a9 \u4e32\u8054\u7535\u963b<\/strong>.\u8fd9\u4e24\u6761\u7ebf\u662f\u72ec\u7acb\u7684\uff0c\u6ca1\u6709\u5f62\u6210\u95ed\u5408\u56de\u8def\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div>\n
              \n

              \u5b9e\u7528\u8bbe\u8ba1\u8003\u8651\u56e0\u7d20<\/h2>\n

              \u5728\u8bbe\u8ba1 CAN \u603b\u7ebf\u7cfb\u7edf\u65f6\uff0c\u5e03\u7ebf\u65b9\u6cd5\u53d6\u51b3\u4e8e MCU 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<\/span><\/p>\n

                \n
              • \u652f\u6301\u00a0CAN2.0A<\/strong>\u00a0\u548c\u00a0CAN2.0B<\/strong>\u00a0\u534f\u8bae\u3002<\/li>\n
              • \u901a\u4fe1\u901f\u5ea6\u9ad8\u8fbe\u00a01 Mbps<\/strong>.<\/li>\n
              • \u5f52\u7c7b\u4e3a\u9ad8\u901f\u603b\u7ebf\u3002<\/li>\n<\/ul>\n<\/div>\n
                \u56e0\u6b64\uff0c\u5728\u4e3a STM32F103 \u8bbe\u8ba1\u5916\u8bbe\u6536\u53d1\u5668\u7535\u8def\u65f6\uff0c\u7ec8\u7aef\u7535\u963b\u7684\u914d\u7f6e\u5e94\u9075\u5faa\u00a0ISO11898 \u6807\u51c6<\/strong>\u00a0(\u5373\u603b\u7ebf\u4e24\u7aef\u90fd\u6709 120 \u6b27\u59c6\u7684\u7535\u963b\u5668\uff09\u3002<\/span><\/div>\n
                \n

                \u7ed3\u8bba<\/h2>\n

                CAN \u603b\u7ebf\u662f\u4e00\u79cd\u7a33\u5b9a\u53ef\u9760\u7684\u901a\u4fe1\u534f\u8bae\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6c7d\u8f66\u548c\u5de5\u4e1a\u9886\u57df\u3002\u5176\u8bbe\u8ba1\u9700\u8981\u4ed4\u7ec6\u8003\u8651\u5177\u4f53\u6807\u51c6\uff08ISO11898 \u6216 ISO11519\uff09\u4ee5\u53ca MCU \u548c\u6536\u53d1\u5668\u7ec4\u4ef6\u7684\u7279\u6027\u3002\u4e0b\u4e00\u671f\uff0c\u6211\u4eec\u5c06\u91cd\u70b9\u5206\u6790 CAN \u534f\u8bae\u672c\u8eab\u7684\u7ec6\u8282\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. 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