单片机原理与工程应用-畅读网

　　　　

单片机原理与工程应用

作者：向敏

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计算机网络 >> 软硬件开发

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内容简介:

结合课题组多位老师的科研工作、工程实践和教学实践经验，给出了单片机在工程应用中的设计与开发方法、单片机应用系统仿真设计方法，并给出了基于MCS-51单片机和32位单片机的工程应用案例。本书给出了大量应用实例，包括硬件设计、汇编或C语言参考代码；同时给出了多个新型器件、多种现代工具和基于不同单片机的应用实例，并提供了硬件电路和软件的参考设计方案。

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CONNECT:[ UseTime:0.005361s ] mysql:host=127.0.0.1;port=3306;dbname=mq;charset=utf8mb4
SHOW FULL COLUMNS FROM `ls_goods_category` [ RunTime:0.001353s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 1 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.002604s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 2 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.001484s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 3 ORDER BY `sort` DESC [ RunTime:0.004958s ]
SHOW FULL COLUMNS FROM `ls_nav` [ RunTime:0.005480s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`link`,`module`,`is_show`,`is_recommend` FROM `ls_nav` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 1 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.000523s ]
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SHOW FULL COLUMNS FROM `ls_friendly_link` [ RunTime:0.001122s ]
SELECT * FROM `ls_friendly_link` WHERE `is_show` = 1 AND `del` = 0 ORDER BY `id` DESC,`sort` DESC [ RunTime:0.002490s ]
SHOW FULL COLUMNS FROM `ls_goods` [ RunTime:0.000950s ]
SELECT * FROM `ls_goods` WHERE `id` = 138185 AND `status` = 1 LIMIT 1 [ RunTime:0.002047s ]
UPDATE `ls_goods` SET `click_count` = 130 , `update_time` = 1776638429 WHERE `id` = 138185 [ RunTime:0.000475s ]
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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 35 LIMIT 1 [ RunTime:0.000379s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 1 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.000495s ]
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SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 3 ORDER BY `sort` DESC [ RunTime:0.000436s ]
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SHOW FULL COLUMNS FROM `ls_ad` [ RunTime:0.007411s ]
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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 35 LIMIT 1 [ RunTime:0.000303s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 11 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.000470s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 14 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.000524s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1776638369 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:0.383615s ]

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