脉冲发生测试.此程序为AD9850（DDS）直接数字频率合成器C语言源码。用125M的有源晶振，频率无失真输出可达到40M。-Impulse test. This procedure for the AD9850 (DDS) Direct Digital Frequency Synthesizer C language source code. With 125M active crystal, the frequency output can be achieved without distortion 40M.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002080s ]
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:0.084783s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002314s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001949s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002376s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003662s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002021s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003447s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014602s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002532s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 145979 [ RunTime:0.001232s ]
