This is an MCP2515 driver application using a PIC16F73, connected to the PC through the serial port.
In the firmware you can easily configure the MCP in TX, RX or LOOPBACK mode.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001283s ]
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:0.087555s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001238s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001904s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001230s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003601s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001046s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003198s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014356s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001371s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 186356 [ RunTime:0.001388s ]
