{"id":6296,"date":"2024-08-12T20:01:01","date_gmt":"2024-08-12T12:01:01","guid":{"rendered":""},"modified":"2024-08-12T20:01:01","modified_gmt":"2024-08-12T12:01:01","slug":"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8bae","status":"publish","type":"post","link":"https:\/\/mushiming.com\/6296.html","title":{"rendered":"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8bae"},"content":{"rendered":"

\u76ee\u5f55<\/strong><\/p>\n

CAN FD\u662f\u4ec0\u4e48<\/p>\n

CANFD\u8bde\u751f\u539f\u56e0<\/p>\n

CAN FD\u5bf9\u6bd4FlexRay\u7684\u4f18\u52bf<\/p>\n

CAN FD\u5bf9\u6bd4\u4ee5\u592a\u7f51\u7684\u4f18\u52bf<\/p>\n

\u4f4e\u6210\u672c\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n

CAN FD\u4e0e\u4f20\u7edfCAN\u6bd4\u8f83<\/p>\n

CAN FD\u62a5\u6587\u7ed3\u6784<\/p>\n

\u8d77\u59cb\u4f4dSOF\uff08start of frame\uff09<\/p>\n

\u4ef2\u88c1\u573a\uff08Arbitration Field\uff09<\/p>\n

DLC\u63a7\u5236\u57df\uff08control Field\uff09<\/p>\n

CRC<\/p>\n

ACK<\/p>\n

\n

CAN FD<\/span><\/span><\/strong>\u662f\u4ec0\u4e48<\/span><\/span><\/strong><\/h2>\n
\n

    <\/strong><\/p>\n

CANFD<\/span><\/span>\uff1a\u53ef\u4ee5\u7406\u89e3\u6210CAN\u534f\u8bae\u7684\u5347\u7ea7\u7248\uff0c\u53ea\u5347\u7ea7\u4e86\u534f\u8bae\uff0c<\/span><\/span>\u7269\u7406\u5c42\u672a\u6539\u53d8\u3002<\/p>\n

\n

CANFD<\/span><\/span>\u8bde\u751f\u539f\u56e0<\/span><\/span><\/h2>\n

\n<\/div>\n

1. <\/span>\u539f\u56e0\u4e3b\u8981\u662f\u56e0\u4e3a\u6c7d\u8f66\u529f\u80fd\u8d8a\u6765\u8d8a\u591a\uff0c\u8d8a\u6765\u8d8a\u590d\u6742\uff0c\u4f20\u7edf\u7684<\/span>CAN<\/span>\u603b\u7ebf\uff08<\/span>CAN2.0<\/span>\uff09\u7684\u8d1f\u8f7d\u7387\u8d8a\u6765\u8d8a\u9ad8\uff0c\u751a\u81f3\u8d1f\u8f7d\u7387\u9ad8\u8fbe<\/span>95%<\/span>\u3002<\/span><\/span><\/p>\n

2. <\/span>\u56e0\u4e3a\u4f20\u7edf<\/span>CAN<\/span>\u603b\u7ebf\u7684\u5c40\u9650\u6027\uff1a<\/span><\/span><\/p>\n

\u00b7 <\/span>\u4f20\u8f93\u7387\u6700\u5927\u4e3a<\/span>1Mbiy\/s<\/span>\uff08\u5178\u578b\u7684<\/span><= 500kbit\/s<\/span>\uff09\uff1b<\/span><\/span><\/p>\n

\u00b7 <\/span>\u4f20\u7edf<\/span>CAN<\/span>\u6570\u636e\u5e27\u8d85\u8fc7<\/span>50%<\/span>\u7684\u989d\u5916\u5f00\u9500\uff08<\/span>overhead > 50%<\/span>\uff09\u3002<\/span><\/span><\/p>\n

3. <\/span>\u5bf9\u6bd4\u5176\u4ed6\u534f\u8bae\uff0c\u989d\u5916\u5f00\u9500\u6bd4\u4f8b\u8981\u5c0f\u5f97\u591a\uff0c\u5982<\/span>UDP <\/span>\uff08<\/span>1500 bytes\/datagram, 64 bytes overhead<\/span>\uff09\uff0c<\/span>FlexRay<\/span>\uff08<\/span>254 bytes\/frame, 8 bytes overhead<\/span>\uff09\u3002<\/span><\/span><\/p>\n

4. <\/span>\u56e0\u4e3a\u5386\u53f2\u539f\u56e0\uff0c\u6c7d\u8f66\u4e0d\u53ef\u80fd\u76f4\u63a5\u653e\u5f03\u76ee\u524d\u7684\u4f20\u7edf<\/span>CAN<\/span>\u603b\u7ebf\u6280\u672f\uff0c\u4e00\u5207\u63a8\u5230\u91cd\u6765\u3002\u90a3\u4e48\u4e3a\u4e86\u89e3\u51b3<\/span>CAN<\/span>\u603b\u7ebf\u8d1f\u8f7d\u7387\u95ee\u9898\uff0c\u800c\u53c8\u80fd\u517c\u5bb9<\/span>CAN<\/span>\u603b\u7ebf\uff0c\u5e76\u4e14\u7814\u53d1\u6210\u672c\u4e0d\u80fd\u592a\u9ad8\u7684\u95ee\u9898\u3002<\/span><\/span><\/p>\n

\n

CAN FD<\/span>\u5bf9\u6bd4<\/span>FlexRay<\/span>\u7684\u4f18\u52bf<\/span><\/span><\/h2>\n

1. CAN FD<\/span>\u7684\u5f00\u53d1\u6210\u672c\u8fdc\u4f4e\u4e8e<\/span>FlexRay<\/span>\uff1b<\/span><\/span><\/p>\n

2. FlexRay<\/span>\u5bf9<\/span>ECU<\/span>\u5347\u7ea7\u5237\u5199\u4e0d\u53cb\u597d\u3002<\/span><\/span><\/p>\n

CAN FD<\/span>\u5bf9\u6bd4\u4ee5\u592a\u7f51\u7684\u4f18\u52bf<\/span><\/span><\/h2>\n

1. CAN FD<\/span>\u7684\u5f00\u53d1\u6210\u672c\u8fdc\u4f4e\u4e8e\u4ee5\u592a\u7f51\uff1b<\/span><\/span><\/p>\n

2. <\/span>\u4ee5\u592a\u7f51\u4f18\u52bf\u5728\u4e8e\u5927\u6570\u636e\u7684\u4f20\u8f93\u4f46\u4e0d\u80fd\u5b8c\u5168\u9002\u7528\u4e8e\u5f53\u524d\u6c7d\u8f66\u67b6\u6784\u3002<\/span><\/span><\/p>\n

\n
\n

\u4f4e\u6210\u672c\u89e3\u51b3\u65b9\u6848\uff1a<\/span><\/span><\/h2>\n<\/div>\n

\u6839\u636e\u8282\u70b9\u4f18\u5148\u7ea7\u52a8\u6001\u66f4\u6539\u6ce2\u7279\u7387\u3002\u4f8b\u5982\uff0c\u5f53\u8282\u70b9<\/span>A<\/span>\uff0c<\/span>B<\/span>\u60f3\u7528\u9ad8\u6ce2\u7279\u7387\u901a\u4fe1\u65f6\uff0c\u6309\u6d41\u7a0b\uff1a<\/span><\/span><\/p>\n

Step1<\/span>\uff1a<\/span>A<\/span>\u6309\u7167\u9ed8\u8ba4\u6ce2\u7279\u7387\u901a\u77e5\u5176\u4ed6\u8282\u70b9\u505c\u6b62\u63a5\u6536\uff0c\u901a\u77e5<\/span>B<\/span>\u8282\u70b9\u63d0\u9ad8\u6ce2\u7279\u7387\u3002<\/span><\/span><\/p>\n

Step 2<\/span>\uff1a<\/span>A<\/span>\u63d0\u9ad8\u6ce2\u7279\u7387\uff1a<\/span>2~10HMz<\/span>\u7b49<\/span><\/span><\/p>\n

Step 3<\/span>\uff1a<\/span>A<\/span>\uff0c<\/span>B<\/span>\u4e92\u76f8\u901a\u4fe1<\/span><\/span><\/p>\n

Step 4<\/span>\uff1a<\/span>A<\/span>\uff0c<\/span>B<\/span>\u901a\u4fe1\u5b8c\u91ca\u653e\u603b\u7ebf\u3002<\/span><\/span><\/p>\n

Step5<\/span>\uff1a\u5176\u5b83\u8282\u70b9\u6309\u7167\u9ed8\u8ba4\u6ce2\u7279\u7387\u901a\u4fe1\u3002<\/span><\/span><\/p>\n

\n

CAN-FD<\/span><\/span>\u5728\u4ef2\u88c1\u573a\u589e\u52a0BRS\u4f4d\uff0c\u53ea\u8981\u4e00\u4e2aBit\u7684\u65f6\u95f41-2us\uff0c\u5c31\u53ef\u4ee5\u65e0\u7f1d\u5207\u6362\u6ce2\u7279\u7387\u3002\u4ec5\u4ec5\u66f4\u6362\u4f20\u7edf\u63a7\u5236\u5668CAN\u8282\u70b9\u7684\u6536\u53d1\u5668\uff0c\u4f7f\u6536\u5230BRS\u4f4d\u6709\u6548\u65f6\u7acb\u5373\u5173\u95ed\u63a5\u6536\uff0c\u907f\u514d\u6ce2\u7279\u7387\u4e0d\u4e00\u81f4\u4f7f\u4f4e\u901f\u8282\u70b9\u53d1\u51fa\u9519\u8bef\u5e27\u3002\u4f7f\u7528\u6700\u4f4e\u7684\u6210\u672c\u5c31\u662f\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e2aCAN\u7f51\u7edc\u4e2d\u4e2a\u522b\u8282\u70b9\u7684\u901f\u7387\u63d0\u5347\u3002<\/span><\/span><\/p>\n

\n

\n<\/div>\n

\n

CAN FD<\/span><\/span>\u4e0e\u4f20\u7edfCAN\u6bd4\u8f83<\/span><\/span><\/h2>\n

Can<\/span><\/span>\u4e0e<\/span><\/span>CanFD<\/span><\/span>\u4e3b\u8981\u533a\u522b\uff1a\u4f20\u8f93\u901f\u7387\u4e0d\u540c\u3001\u6570\u636e\u957f\u5ea6\u4e0d\u540c\u3001\u5e27\u683c\u5f0f\u4e0d\u540c\u3001<\/span><\/span>ID<\/span><\/span>\u957f\u5ea6\u4e0d\u540c\u3002<\/span><\/span><\/p>\n

\n

\u5bf9\u6bd4\u4f20\u7edf<\/span><\/span>CAN<\/span><\/span>\u7684\u6570\u636e\u5e27\uff0c<\/span><\/span>CAN FD<\/span><\/span>\u5728\u63a7\u5236\u573a\u65b0\u6dfb\u52a0<\/span><\/span>EDL<\/span><\/span>\u4f4d\u3001<\/span><\/span>BRS<\/span><\/span>\u4f4d\u3001<\/span><\/span>ESI<\/span><\/span>\u4f4d\uff0c\u91c7\u7528\u4e86\u65b0\u7684<\/span><\/span>DLC<\/span><\/span>\u7f16\u7801\u65b9\u5f0f\u3001\u65b0\u7684<\/span><\/span>CRC<\/span><\/span>\u7b97\u6cd5\uff08<\/span><\/span>CRC<\/span><\/span>\u573a\u6269\u5c55\u5230<\/span><\/span>21<\/span><\/span>\u4f4d\uff09<\/span><\/span><\/p>\n

    \n
  1. \u4e00\u6761\u62a5\u6587\u4e2d\u542b\u6709\u4e24\u79cd\u901f\u7387\uff0c\u4ef2\u88c1\u6bb5\u548c\u4f20\u7edfCAN\u6709\u7740\u76f8\u540c\u7684\u901f\u7387\uff0c\u800c\u6570\u636e\u6bb5\u6700\u9ad8\u53ef\u4ee5\u8fbe\u52305Mbps<\/span><\/span><\/li>\n
  2. \u62e5\u6709\u66f4\u5927\u7684\u6570\u636e\u8f7d\u8377\uff0c\u4e00\u6761\u62a5\u6587\u6700\u5927\u53ef\u4ee5\u4f20\u8f9364\u5b57\u8282\u7684\u6570\u636e\u3002<\/span><\/span><\/li>\n<\/ol>\n

    \"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8bae<\/p>\n

    \u6210\u672c\u4e0aCAN FD\u548c\u4f20\u7edfCAN\u51e0\u4e4e\u4e00\u6837\uff0c\u786c\u4ef6\u6784\u9020\u9664\u4e86CAN Controller\u9700\u8981\u66f4\u6362\u5916\u5176\u4ed6\u5b8c\u5168\u4e00\u6837\uff0c\u8f6f\u4ef6\u53ea\u9700\u8981\u4e00\u4e9b\u5c0f\u53d8\u66f4\u5373\u53ef\uff0c\u5176\u4ed6\u89e6\u53d1\u7ba1\u7406\u673a\u5236\u4e5f\u548c\u539f\u6765\u7684\u4f20\u7edfCAN\u4e00\u6837\uff0cCAN FD\u517c\u5bb9\u4f20\u7edfCAN<\/span><\/span>\u3002<\/p>\n

    \n

    \u901a\u8fc7CAN FD\uff0c\u53ef\u4ee5\u4f7f\u6c7d\u8f66\u4e0a\u7684\u8f6f\u4ef6\u62e5\u6709\u66f4\u5feb\u7684\u4e0b\u8f7d\u901f\u5ea6\u3001\u907f\u514d\u6570\u636e\u5206\u5272\u6210\u6570\u6761\u62a5\u6587\u3001\u964d\u4f4e\u73b0\u6709\u603b\u7ebf\u7684\u8d1f\u8f7d\u3001\u589e\u52a0\u603b\u7ebf\u4e0a\u7684\u8282\u70b9\u3001\u907f\u514d\u7f51\u7edc\u7684\u5206\u5272\uff0c\u4ee5\u53ca\u52a0\u901f\u957f\u603b\u7ebf\uff08\u5361\u8f66\u3001\u516c\u4ea4\u8f66\uff09\u4e0a\u7684\u901a\u4fe1\u7b49\u4f18\u52bf\u3002<\/span><\/span><\/p>\n

    \n
    \n<\/div>\n

    \n

    CAN FD<\/span><\/span><\/strong>\u62a5\u6587\u7ed3\u6784<\/span><\/span><\/strong><\/h2>\n

    \"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8bae<\/p>\n

    CAN\u7684\u62a5\u6587\u8be6\u89e3\u89c1\u53e6\u5916\u4e00\u7bc7\u6587\u7ae0\uff1a<\/span><\/strong>\u4e00\u6587\u638c\u63e1\u6c7d\u8f66\u603b\u7ebfCAN\u5e27\u62a5\u6587_ IT\u6280\u672f\u733f\u7334\u7684\u535a\u5ba2-CSDN\u535a\u5ba2<\/p>\n

    \n

    \u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u51fa\uff0cCAN FD\u62a5\u6587\u5728\u6570\u636e\u6bb5\u4e4b\u524d\u57fa\u672c\u548c\u4f20\u7edfCAN\u7c7b\u4f3c\uff0c<\/span><\/span>EDL<\/span><\/span>\u4f4d\u3001<\/span><\/span>BRS<\/span><\/span>\u4f4d\u3001<\/span><\/span>ESI<\/span><\/span>\u4f4d<\/span><\/span>\u3002<\/span><\/span><\/p>\n<\/div>\n

    \n

    \u8d77\u59cb\u4f4d<\/span><\/span>SOF<\/span><\/span>\uff08<\/span><\/span>start of frame<\/span><\/span>\uff09<\/span><\/span><\/h2>\n

    \"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8bae<\/p>\n

    \n

    \n

    \u4f20\u7edf<\/span><\/span>CAN<\/span><\/span>\u7684\u6570\u636e\u5e27\u8d77\u59cb\u4f4d<\/span><\/span>SOF<\/span><\/span>\u548c<\/span><\/span>CAN FD<\/span><\/span>\u7684\u6570\u636e\u5e27\u8d77\u59cb\u4f4d<\/span><\/span>SOF<\/span><\/span>\u662f\u4e00\u6837\u7684\uff0c\u4e00\u4e2a<\/span><\/span>bit<\/span><\/span>\u7684\u663e\u6027\u4f4d<\/span><\/span>\u20180\u2019<\/span><\/span><\/p>\n<\/div>\n

    \n

    \u4ef2\u88c1\u573a\uff08<\/span><\/span>Arbitration Field<\/span><\/span>\uff09<\/span><\/span><\/h2>\n

    \"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8bae<\/p>\n

    \u5bf9\u6bd4\u4f20\u7edf<\/span>CAN<\/span>\u6570\u636e\u5e27\uff0c<\/span>CAN FD<\/span>\u5171\u4eab\u76f8\u540c\u7684<\/span>CAN ID<\/span>\uff0c\u5305\u62ec\u6269\u5c55\u6570\u636e\u5e27\u7684<\/span>ID<\/span>\u3002<\/span><\/span><\/p>\n

    CAN FD<\/span>\u7528<\/span>RRS bit<\/span>\uff08\u59cb\u7ec8\u4e3a\u663e\u6027\u4f4d<\/span>\u20180\u2019<\/span>\uff09\u4ee3\u66ff<\/span>RTR<\/span><\/span><\/p>\n

    \n

    \"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8bae<\/p>\n

    FDF<\/span>\uff08<\/span>FD format<\/span>\uff09\u8868\u793a<\/span>CAN FD<\/span>\u8fd8\u662f\u4f20\u7edf<\/span>CAN<\/span>\u6570\u636e\u5e27\uff1a<\/span><\/span><\/p>\n

    \u00b7FDF = \u20180\u2019 --> <\/span>\u4f20\u7edf<\/span>CAN<\/span>\u6570\u636e\u5e27<\/span><\/span><\/p>\n

     FDF = \u20181\u2019--> CAN FD<\/span>\u6570\u636e\u5e27<\/span><\/span><\/p>\n

    \n

    \u589e\u52a0\u4e86BRS\u4f4d\uff08Bit Rate Switch\u901f\u7387\u4e0d\u5207\u6362\/\u901f\u7387\u5207\u6362\uff09\u6765<\/span><\/span>\u8868\u793a\u65f6\u949f\u9891\u7387\u7684\u5207\u6362<\/span><\/span>\uff0c BRS = \u20181\u2019<\/span><\/span>\u8868\u660e\u65f6\u949f\u9891\u7387\u5207\u6362<\/span><\/span>\u3002<\/span><\/span><\/p>\n

    \n

    \u589e\u52a0\u4e86ESI\u4f4d\uff08Error State Indicator error passive\/ active\uff09\u6765\u8868\u660e\u9519\u8bef\u72b6\u6001\u3002<\/span><\/span><\/p>\n<\/div>\n

    \n

    DLC<\/span><\/span>\u63a7\u5236\u57df\uff08<\/span><\/span>control Field<\/span><\/span>\uff09<\/span><\/span><\/h2>\n

    \"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8bae<\/p>\n

    CAN FD<\/span><\/span>\u56e0\u4e3a\u6700\u5927\u53ef\u4ee5\u4f20\u8f9364\u5b57\u8282\u7684\u6570\u636e\uff0c\u6240\u4ee5DLC\u548c\u4f20\u7edf\u62a5\u6587\u7684\u6709\u4e9b\u533a\u522b<\/span><\/span>\u3002<\/p>\n

    \"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8bae<\/p>\n

    \u6570\u636e\u6bb5\u7684\u53d8\u5316\u5c31\u662f\u7531\u6700\u59278\u5b57\u8282\u53d8\u6210\u4e86\u5982\u56fe\u4e2dDLC\u6240\u63cf\u8ff0\u7684\u90a3\u6837\uff0c\u6700\u5927\u53ef\u5bb9\u7eb364\u5b57\u8282\u6570\u636e\u3002<\/span><\/span><\/p>\n

    \n

    CRC<\/span><\/span><\/h2>\n

    \u6570\u636e\u6bb5\u540e\u9762\u7684CRC\u548cACK\uff0c\u56e0\u4e3aCAN FD\u7684CRC\u5bf9bit stuff\u4e5f\u8fdb\u884c\u8ba1\u7b97\uff0c\u6240\u4ee5\u5728\u62a5\u6587\u5e27\u4e2d\u589e\u52a0\u4e86Stuff Count<\/span><\/span>\u3002<\/p>\n

    \"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8bae<\/p>\n

    \n

    Stuff Count<\/span>\u53ef\u4ee5\u5206\u4e3a\u4e24\u90e8\u5206\uff0c\u5373\u4ee3\u8868bit stuff\u4e2a\u6570\u4f598\u7684\u6570\u636e\u4f4d\uff0c\u4ee5\u53ca\u6700\u540e\u7684\u5947\u5076\u6821\u9a8c\u4f4d\u3002<\/span><\/span><\/span><\/p>\n<\/div>\n

    CAN<\/span><\/span>\u603b\u7ebf\u7531\u4e8e\u4f4d\u586b\u5145\u89c4\u5219\u5bf9<\/span><\/span>CRC<\/span><\/span>\u7684\u5e72\u6270\uff0c\u9020\u6210\u9519\u5e27\u6f0f\u68c0\u7387\u672a\u8fbe\u5230\u8bbe\u8ba1\u610f\u56fe\u3002<\/span><\/span>CAN FD<\/span><\/span>\u5bf9<\/span><\/span>CRC<\/span><\/span>\u7b97\u6cd5\u505a\u4e86\u6539\u53d8\uff0c\u5373<\/span><\/span>CRC<\/span><\/span>\u4ee5\u542b\u586b\u5145\u4f4d\u7684\u4f4d\u6d41\u8fdb\u884c\u8ba1\u7b97\u3002\u5728\u6821\u9a8c\u548c\u90e8\u5206\u4e3a\u907f\u514d\u518d\u6709\u8fde\u7eed\u4f4d\u8d85\u8fc7<\/span><\/span>6<\/span><\/span>\u4e2a\uff0c\u5c31\u786e\u5b9a\u5728\u7b2c\u4e00\u4f4d\u4ee5\u53ca\u4ee5\u540e\u6bcf<\/span><\/span>4<\/span><\/span>\u4f4d\u6dfb\u52a0\u4e00\u4e2a\u586b\u5145\u4f4d\u52a0\u4ee5\u5206\u5272\uff0c\u8fd9\u4e2a\u586b\u5145\u4f4d\u7684\u503c\u662f\u4e0a\u4e00\u4f4d\u7684\u53cd\u7801\u3002\u4f5c\u4e3a\u683c\u5f0f\u68c0\u67e5\uff0c\u5982\u679c\u586b\u5145\u4f4d\u4e0d\u662f\u4e0a\u4e00\u4f4d\u7684\u53cd\u7801\uff0c\u5c31\u4f5c\u51fa\u9519\u5904\u7406\u3002<\/span><\/span>CAN FD<\/span><\/span>\u7684<\/span><\/span>CRC<\/span><\/span>\u573a\u6269\u5c55\u5230\u4e86<\/span><\/span>21<\/span><\/span>\u4f4d<\/span><\/span>\u3002<\/span><\/p>\n

    \n

    CRC<\/span>\u7684\u4f4d\u957f\u5219\u6839\u636e\u6570\u636e\u957f\u5ea6\u4e0d\u540c\u800c\u4e0d\u540c\uff1a<\/span><\/span><\/p>\n

      \n
    • \u4f20\u7edfCAN\u7684CRC\u4f4d\u957f15bit<\/span><\/span><\/li>\n
    • \u6570\u636e\u957f\u5ea6\u4e3a16\u5b57\u8282\u548c16\u5b57\u8282\u4ee5\u4e0b\u7684CAN FD\u62a5\u6587\u7684CRC\u4f4d\u957f17bit<\/span><\/span><\/li>\n
    • \u6570\u636e\u957f\u5ea6\u4e3a16\u5b57\u8282\u4ee5\u4e0a\u7684CAN FD\u62a5\u6587\u7684CRC\u4f4d\u957f21bit<\/span><\/span><\/li>\n<\/ul>\n
      \n

      ACK<\/span><\/span><\/h2>\n

      CAN FD\u7684CRC\u5206\u9694\u548cACK\u4e0e\u4f20\u7edfCAN\u4e00\u6837\uff0c\u4f46\u662f\u56e0\u4e3a\u8003\u8651\u5230\u6536\u53d1\u5668\u901f\u7387\u5207\u6362\u7684\u95ee\u9898\uff0c\u603b\u7ebf\u5206\u522b\u53ef\u4ee5\u5bb9\u5fcd\u6570\u636e\u76841\u4f4d\u5ef6\u957f\uff0c\u5373CRC Delimiter\u4ece\u539f\u6765\u76841\u4f4d\u30101\u3011\u53d8\u4e3a\u4e86CAN FD\u7684\u6700\u59272\u4f4d\u30101\u3011\uff0cACK\u4ece\u539f\u6765\u76841\u4f4d\u30100\u3011\u53d8\u4e3a\u4e86CAN FD\u7684\u6700\u59272\u4f4d\u30100\u3011\u3002<\/span><\/span><\/p>\n

      \n

      \n<\/div>\n","protected":false},"excerpt":{"rendered":"\u6c7d\u8f66can\u901a\u4fe1\u534f\u8bae_can\u8bca\u65ad\u534f\u8baeCANFD\u662f\u4ec0\u4e48CANFD\uff1a\u53ef\u4ee5\u7406\u89e3\u6210CAN\u534f\u8bae\u7684\u5347\u7ea7\u7248\uff0c\u53ea\u5347\u7ea7\u4e86\u534f\u8bae\uff0c\u7269\u7406\u5c42\u672a\u6539\u53d8","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/6296"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=6296"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/6296\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=6296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=6296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=6296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}