DAC7611，12位串口DA驱动程序，只需将代码中的四个端口按自己的电路修改就可以使用。-DAC7611, 12 bit serial DA driver, just the code of the four ports in accordance with their own modifications on the circuit can be used.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002022s ]
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:0.085571s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002465s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001942s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002749s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003771s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001994s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003241s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014470s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002276s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 208432 [ RunTime:0.001304s ]
