Scan Code Set 1 - Original XT scan code set supported by some modern keyboards 第一套扫描码集--原始的XT扫描码集 某些现代的键盘还支持
标签： keyboards supported Original modern
上传时间： 2014-08-15
上传用户：huql11633
Scan Code Set 2 - Default scan code set for all modern keyboards 第二套扫描码集--所有现代键盘默认的扫描码集
标签： keyboards Default modern Scan
上传时间： 2013-12-20
上传用户：kristycreasy
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
The MC68HC05K0 is a low cost, low pin countsingle chip microcomputer with 504 bytes of userROM and 32 bytes of RAM. The MC68HC05K0 isa member of the 68HC05K series of devices whichare available in 16-pin DIL or SOIC packages.It uses the same CPU as the other devices in the68HC05 family and has the same instructions andregisters. Additionally, the device has a 15-stagemulti-function timer and 10 general purposebi-directional I/0 lines. A mask option is availablefor software programmable pull-downs on all ofthe I/O pins and four of the pins are capable ofgenerating interrupts.The device is ideally suited for remote-controlkeyboard applications because the pull-downs andthe interrupt drivers on the port pins allowkeyboards to be built without any externalcomponents except the keys themselves. There isno need for external pull-up or pull-down resistors,or diodes for wired-OR interrupts, as these featuresare already designed into the device.
上传时间： 2014-01-24
上传用户：zl5712176
用Java写的报表.功能如下: 0.内建网络打印,网络预览功能！ 1.文件操作。包括url 指定的文件。 2.全功能打印支持。包括打印预览。 3.Undo 和 redo。 4.合并单元格。 5.Cell selection using the mouse or keyboards（快捷键支持）。 6.单元格高宽调整 。 7.丰富的前景刷支持，前景可以是单色，双色渐变，JPG,PNG,GIF图形 。 8.背景刷支持，前景可以是单色，双色渐变，JPG,PNG,GIF图形 。 9.每个单元格支持空心字体，各其他一般字体。 10.每个单元格可设置为只读。 11.每个单元格上下左右可分别高设置边框，边框线的宽度，颜色可调。 12.拖放操作。可在一个应用中的不同单元格拖放，也可在两个应用的之间进行拖放。支持剪切和COPY两种方式。 13.剪贴板功能。支持文本方式和全格式两种方式。剪贴也允许在两个应用之间进行。可以从EXCELL单元格中复制到本应用中。 14.单元格线，滚动条，行头，列头显示可选. 15.支持公式定义,公式定义采用？作标记，如?sum(A1:B1)。 16.数字格式可自由定义，如 12345678, 可自动化为 12,345,678.00 。 17.丰富的页脚页眉属性。具有以上3，4，5，6?，8，9，10，11，12，13，15,16，17各项功能。
上传时间： 2015-03-15
上传用户：熊少锋
For developers who design and program devices that use the USB interface. Introduce the USB and help to get your devices and communicating as quickly and easily as possible.The USB is versatile enough for a wide range of peripheral devices. Standard peripherals that use USB include mice, keyboards, drives, printers, and audio/video devices. USB is also suitable for data-acquisition units, control systems, and other devices with specialized functions, including one-of-a-kind designs.
标签： developers and USB Introduce
上传时间： 2017-08-15
上传用户：dave520l
