基于Proteus的8051单片机实例教程
上传时间: 2014-12-24
上传用户:jesuson
基于PROTEUS的电路及单片机系统设计与仿真
上传时间: 2013-12-18
上传用户:redmoons
基于Proteus的单片机汉字点阵显示设计与仿真
上传时间: 2013-10-21
上传用户:tom_man2008
针对目前使用的RS232接口数字化B超键盘存在PC主机启动时不能设置BIOS,提出一种PS2键盘的设计方法。基于W78E052D单片机,采用8通道串行A/D转换器设计了8个TGC电位器信息采集电路,电位器位置信息以键盘扫描码序列形式发送,正交编码器信号通过XC9536XL转换为单片机可接收的中断信号,软件接收到中断信息后等效处理成按键。结果表明,在满足开机可设置BIOS同时,又可实现超声特有功能,不需要专门设计驱动程序,接口简单,成本低。 Abstract: Aiming at the problem of the digital ultrasonic diagnostic imaging system keyboard with RS232 interface currently used couldn?蒺t set the BIOS when the PC boot, this paper proposed a design method of PS2 keyboards. Based on W78E052D microcontroller,designed eight TGC potentiometers information acquisition circuit with 8-channel serial A/D converter, potentiometer position information sent out with keyboard scan code sequentially.The control circuit based on XC9536 CPLD is used for converting the mechanical actions of the encoders into the signals that can be identified by the MCU, software received interrupt information and equivalently treatmented as key. The results show that the BIOS can be set to meet the boot, ultrasound specific functionality can be achieved at the same time, it does not require specially designed driver,the interface is simple and low cost.
上传时间: 2013-10-10
上传用户:asdfasdfd
TKS仿真器B系列快速入门
上传时间: 2013-10-31
上传用户:aix008
8051 VARIOUS UTILITY FUNCTIONSUTIL_ADCAD - Add Acc to DPTR, sets CYUTIL_ADCBAD - Add B/A to DPTR, sets CYUTIL_SUBBAD
标签: FUNCTIONSUTIL_ADCAD DPTR CYUTIL_ADCBAD Add
上传时间: 2013-11-25
上传用户:himbly
A Simple isochronous transfer. Reads 8051 ports A,B and C, and continuously sends a five byte packet over EP8IN:
标签: continuously isochronous and transfer
上传时间: 2015-02-01
上传用户:ywqaxiwang
企业内部办公管理信息系统 (一个用ASP开发的基于B/S方式的毕业设计)
上传时间: 2013-12-13
上传用户:ynwbosss
基于B/S结构的在线选课系统.可以实现在线的学生选课\查看功能,教师开课,查看功能,以及后台的学生信息和教师信息的管理,它是以vbscrip为脚本,以SQL2000为后台数据库开发的
上传时间: 2013-12-12
上传用户:gut1234567
这是一个简易的聊天程序,它是一个基于b/s模式的系统,希望大家看了之后能给予更多的改进啊,谢谢大家
上传时间: 2013-12-01
上传用户:84425894