介绍了MVB总线帧结构，并完成了用于网络连接的MVB总线访问IP核的设计。-introduced the MVB bus frame structure, and completed the network connection for the MVB bus visit IP core design.
文 件 列 表
Design of Train Communication Adapter Based on SOPC.pdf
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001289s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.090343s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001258s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001974s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001267s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003690s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001098s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003333s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015295s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001387s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 307055 [ RunTime:0.001384s ]
