C8051F120初始化SPI，启动CC2420。通过将CC2420 得VREG_EN 引脚置位高电平使能Voltage
regulator，等待其稳定；然后重新启动CC2420 芯片，等待晶振起振。-Initialize SPI, start the CC2420. By CC2420 have VREG_EN pin high to enable the set Voltage regulator, waiting for their stability and then re-start the CC2420 chip, since waiting for crystal oscillator.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001631s ]
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:0.065845s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001026s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001189s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000946s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003262s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001202s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003655s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015305s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001262s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 141701 [ RunTime:0.020109s ]
