这是利用51单片机来实现对cd-rom的控制并实现类似于mp3的功能!-This is the use of 51 single-chip microcomputer to realize on the cd-rom control and realize the function is similar to mp3!
文 件 列 表
CD_Source onhold- an ATA-ATAPI CDROM application using a 8051 based Micro controller_files A51_code onhold- an ATA-ATAPI CDROM application using a 8051 based Micro controller.htm
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002306s ]
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:0.103699s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.017071s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001291s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001268s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003168s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000893s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003974s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017452s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001207s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 203527 [ RunTime:0.011407s ]