自已编at91rm9200的串口通讯程序。可供初学者参考，根据自定义的函数，可灵活控制。-at91rm9200 own series of serial communication procedure. Reference for beginners, under the definition of the function, flexible control.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000912s ]
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:0.101876s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000916s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001131s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000953s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003131s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000840s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003604s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.025387s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001444s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 154040 [ RunTime:0.011493s ]
