使用VB做前端界面，SQL Server数据库做后台的零食销售管理小系统。内附有VB源代码，数据库的mdf和ldf文件，还有设计报告，适合初学者学习使用。
上传时间： 2013-11-11
上传用户：lalaruby
labview基于声卡的双通道示波器
上传时间： 2013-11-11
上传用户：xinyuzhiqiwuwu
This example shows how to update at regulate period the WWDG counter using theEarly Wakeup interrupt (EWI). The WWDG timeout is set to 262ms, refresh window set to 41h and the EWI isenabled. When the WWDG counter reaches 40h the EWI is generated and in the WWDGISR the counter is refreshed to prevent a WWDG reset and led connected to PC.07is toggled.The EXTI line9 is connected to PB.09 pin and configured to generate an interrupton falling edge.In the NVIC, EXTI line9 to 5 interrupt vector is enabled with priority equal to 0and the WWDG interrupt vector is enabled with priority equal to 1 (EXTI IT > WWDG IT). The EXTI Line9 will be used to simulate a software failure: once the EXTI line9event occurs (by pressing Key push-button on EVAL board) the correspondent interruptis served, in the ISR the led connected to PC.07 is turned off and the EXTI line9pending bit is not cleared. So the CPU will execute indefinitely EXTI line9 ISR andthe WWDG ISR will never be entered(WWDG counter not updated). As result, when theWWDG counter falls to 3Fh the WWDG reset occurs.If the EXTI line9 event don抰 occurs the WWDG counter is indefinitely refreshed inthe WWDG ISR which prevent from WWDG reset. If the WWDG reset is generated, after resuming from reset a led connected to PC.06is turned on. In this example the system is clocked by the HSE(8MHz).
上传时间： 2013-11-11
上传用户：gundamwzc
安装流程: 1.下载主程序 2.用破解文件中的dxp.exe复制到安装Altium.Designer.v6.9的根目录中去,覆盖原来的图标. 3.下载AD6.9Crack.rar,注册破解文件.解压后,运行之,自动生成*.alf文件.实在在网上找下载 不到,在AD_6.9_CR/AD6-alf的文件夹里有6个alf文件可以用,只要粘到Altium.Designer.v6.9的根目录下就可以了. 4.将英文改成中文,启动软件,点击左上角 DXP, 点击preference(优先选项), 将最下面的项目选中,重新打开软件.
上传时间： 2013-10-11
上传用户：lps11188
智能车连杆机构详细分析
上传时间： 2013-11-11
上传用户：wangzhen1990
数码管数字显示提取小程序
上传时间： 2013-11-11
上传用户：hanhanj
视频监控
上传时间： 2013-11-11
上传用户：daxigua
GGMM汉化版是侠盗飞车罪恶都市MOD管理工具。
上传时间： 2013-11-11
上传用户：zhengzg
包括了万用表的很多使用技巧
上传时间： 2013-11-11
上传用户：牛布牛
上传时间： 2013-11-11
上传用户：flg0001
