此程序是用9s12单片机控制直流电机的控制程序，已在实物上调试通过。包含PWM程序、通信程序等-this procedure is 9s12 MCU control of the DC motor control procedures, the physical debugging through. PWM includes procedures, communication procedures, etc.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000990s ]
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:0.060571s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000943s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001183s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000887s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003038s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000711s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003663s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.021210s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001342s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 150614 [ RunTime:0.014415s ]
