使用一个线软件UART

1，消除按键的抖动问题 因为按键在闭合或断开过程中出现一段抖动期，主要由于按键的不稳定性引起的，这时会呈现一串页脉冲，时间的长短和开关的机械特性有关。一般在5ms~10ms之间。为保证CPU对键的一次闭合作一次处理，必须去抖动。在键的稳定闭合或断开时读键的状态。 2，据EICE51原理图编写并调试一个键输入子程序，其功能为判断键盘上有无键输入，若有键入，作去抖动处理后，计算输入键的键号送累加器A。-eliminate jitter button issues as keys or disconnect the closure process for some jitter period, mainly due to the instability of the keys to the cause, then it will result in a bunch of pages pulse, the duration and switches on the mechanical properties. General ~ 10ms between 5ms. To ensure that the CPU in a pair of keys a close cooperation, must go jitter. The key to the stability closed or disconnected when reading the key state. 2, EICE51 schematics prepared and debug a key input subroutine, and its function of determining whether keys on the keyboard input, if typing for to handle jitter, the admission of Bond, Bond sent accumulator A.

8个发光管模拟二进制加法运算.asm 8个发光管模拟二进制加法运算.asm-8 LED simulated binary addition operations. Asm 8 months LED simulated binary addition operations. Asm

SED1521DAA和KS0107组合的160*32的LCD显示程式-SED1521DAA and KS0107 portfolio of 160* 32 LCD display program

modbus RTU 51单片机 ASM源代码-modbus RTU51 Singlechip ASM source code

基于asm汇编语言实现的是在pc系统中int9中断功能的部分示例,只在说明机制,进行学习,不能实际应用-asm compilation based on the language of the pc systems int9 interrupts some examples of the notes only mechanism for learning, not actual application

汇编速查手册..是初学者的实用工具-Info compilation manual .. is a practical tool for beginners ...

深入 DOS BIOS 编程与应用 (电子书)-depth DOS BIOS programming and applications (e-books)

This the snake game... It s better to set the "step delay" to "0" before running, it requires fast processing. You can control the snake using arrow keys on your keyboard. All other keys will stop the snake. Press ESC to exit. -This is the snake game... It s better to set the "step delay" to "0" before running, it requires fast processing. You can control the snake using arrow keys on your keyboard. All other keys will stop the snake. Press ESC to exit.

这个源代码是可运行的。-the source code can be run.

这是一个时钟程序，请大家指点一下，谢谢大家-This is a clock program, everyone gets advice on thank you