一个AT91SAM7X256 USART驱动实验，硬件环境为at91sam7x-ek开发板，开发环境为iar。-An experimental AT91SAM7X256 USART driver, hardware environment at91sam7x-ek development board, development environment for iar.
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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:0.090392s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002424s ]
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