这是关于DS18B20的读写程序,数据脚P2.2,晶振12MHZ温度传感器18B20汇编程序,采用器件默认的12位转化,最大转化时间750微秒特点能精确到0.5摄氏度-DS18B20 on literacy, data P2.2 feet, 12 MHZ crystal oscillator temperature sensor 18 B20 compilation procedures, devices using the default 12 conversion the largest 750 microsecond conversion time characteristics can be accurate to 0.5 degrees Celsius
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001232s ]
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:0.083797s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001060s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001859s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001101s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003519s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000937s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003168s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017345s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001282s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 247111 [ RunTime:0.001343s ]
