AD7927的驱动代码用的是STM32系列的单片机没有用内部的SPI而使用了外部IO端口模拟！
AD7927 driver code, using the STM32 series microcontroller, no internal SPI, and the use of external IO port simulation!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001553s ]
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:0.098426s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002738s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001209s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000957s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003284s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000818s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003836s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.020838s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001385s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 309409 [ RunTime:0.013213s ]
