外部中断INT0模拟1200bps串口通讯。一次MCU可以可以接收并通过MCU向下位机发送30个字节。-external interrupt INT0 simulated 1200 serial communication. A MCU can be accepted and passed down MCU can send 30 bytes.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001271s ]
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:0.087438s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001239s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001886s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001224s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003564s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001071s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003356s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014701s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001317s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 122674 [ RunTime:0.001432s ]
