文件名称:Keyboard-experiments
- 所属分类:
- 单片机(51,AVR,MSP430等)
- 资源属性:
- [WORD]
- 上传时间:
- 2012-11-26
- 文件大小:
- 32kb
- 下载次数:
- 0次
- 提 供 者:
- jc_****
- 相关连接:
- 无
- 下载说明:
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将8255 单元与键盘及数管显示单元连接,编写实验程序,扫描键盘输入,并将扫描结果
数 管显示。键盘采用4×4 键盘,每个数管显示可为0~F 共16 个数。实验具体内
如下:将键盘进行编号,记作0~F, 按下 中一个按键时,将该按键应的编号在一个数
管上显示出来, 再按下一个按键时,便将这个按键的编号在下一个数管上显示出来,数
管上可以显示近 4 次按下的按键编号。-The 8255 control unit with keyboard and number display unit connected, the preparation of experimental procedures, scanning keyboard input, and the number of scan tube display. 4 × 4 keyboard using the keyboard, LED display for each number 0 ~ F 16 number. Within specific experiments are as follows: the keyboard number, denoted by 0 ~ F, press one button, the button should be the number in a number displayed on the tube, and then press a button, put the number keys In the next few tube display, a number of tubes can be displayed nearly 4 times pressing the button number.
数 管显示。键盘采用4×4 键盘,每个数管显示可为0~F 共16 个数。实验具体内
如下:将键盘进行编号,记作0~F, 按下 中一个按键时,将该按键应的编号在一个数
管上显示出来, 再按下一个按键时,便将这个按键的编号在下一个数管上显示出来,数
管上可以显示近 4 次按下的按键编号。-The 8255 control unit with keyboard and number display unit connected, the preparation of experimental procedures, scanning keyboard input, and the number of scan tube display. 4 × 4 keyboard using the keyboard, LED display for each number 0 ~ F 16 number. Within specific experiments are as follows: the keyboard number, denoted by 0 ~ F, press one button, the button should be the number in a number displayed on the tube, and then press a button, put the number keys In the next few tube display, a number of tubes can be displayed nearly 4 times pressing the button number.
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Keyboard scanning and display design experiments.doc