文件名称:number-display
- 所属分类:
- 单片机(51,AVR,MSP430等)
- 资源属性:
- [ASM] [源码]
- 上传时间:
- 2013-12-07
- 文件大小:
- 1kb
- 下载次数:
- 0次
- 提 供 者:
- 小*
- 相关连接:
- 无
- 下载说明:
- 别用迅雷下载,失败请重下,重下不扣分!
介绍说明--下载内容均来自于网络,请自行研究使用
利用实验箱上的8255A可编程并行接口芯片和矩阵键盘,编写程序,做到在键盘上每按一个数学键(0~F),用发光二极管将代码显示出来。
连线方法:将键盘RL10~RL17接8255A的PB0~PB7;KA10~KA12接8255A的PA0~PA2;PC0~PC7接发光二极管的L1~L8;8255A芯片的片选信号8255CS接CS0-The use of experimental box 8255A programmable parallel interface chip and matrix keyboard, programming, so each time you press a key mathematics (0 ~ F), with a light-emitting diode code displayed on the keypad. Connection Methods: 8255A keyboard RL10 ~ RL17 pick the PB0 ~ PB7 KA10 ~ KA12 pick 8255A of PA0 ~ PA2 PC0 ~ PC7 pick-emitting diodes L1 ~ L8 chip select signals CS0 8255CS 8255A chip connection
连线方法:将键盘RL10~RL17接8255A的PB0~PB7;KA10~KA12接8255A的PA0~PA2;PC0~PC7接发光二极管的L1~L8;8255A芯片的片选信号8255CS接CS0-The use of experimental box 8255A programmable parallel interface chip and matrix keyboard, programming, so each time you press a key mathematics (0 ~ F), with a light-emitting diode code displayed on the keypad. Connection Methods: 8255A keyboard RL10 ~ RL17 pick the PB0 ~ PB7 KA10 ~ KA12 pick 8255A of PA0 ~ PA2 PC0 ~ PC7 pick-emitting diodes L1 ~ L8 chip select signals CS0 8255CS 8255A chip connection
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下载文件列表
number display.asm