DS1302时钟:综合应用定时器中断溢出,串口通信
实验现象: 每隔4SPC机得一时间,十六进制格式-DS1302 Clock: integrated application timer overflow interrupts, serial communication experimental phenomenon: every 4SPC machine was a time, in hexadecimal format
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002070s ]
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:0.121221s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001610s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001998s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002803s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003633s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002296s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003269s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014820s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002505s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 318803 [ RunTime:0.001404s ]
