用485实现单片机之间的串行通信。 主机部分发送从机地址，等待从机响应，从机准备好就发数据,发完就接收从机的响应，接受成功就跳出循环，否则重发。...

pc与单片机好东西，不错的，快来下，好vusdfhvuisdfhviusdfhvoijsd 。-pc with Singlechip good things, good, come under the good vusdfhvuisdfhviusdfhvoijsd.

这是一个51单片机与PC的通信系统：利用3*4小键盘输入0~9的一串数字（不大于5），通过8051自带的串口发送给PC并显示在系统的6位LED上；单片机接收上位机的输入并显示在LED上。8051串行口经232电平转换后，与PC机串行口相连。PC机使用串口调试应用程序V2.2.exe，实现上位机与下位机的通讯。-This is a 51 microcontroller and PC communication system : use 3* 4 0 small keyboard input of a bunch of nine-figure (no more than 5), by 8051, bringing their serial sent to the PC and display system in the six LED; SCM receiving PC input and displayed on the LED on. 8,051 by 232 serial port-level conversion, and the PC serial port connected. PC using serial debugging applications V2.2.exe achieve PC and the next crew communications.

DIY多功能转换器（已调试通过）。 本原理图可以实现USB/RS232、USB/RS422、USB/RS485接口转换功能。只需安装USB驱动程序即可实现USB转串口的功能，简单方便。另外只需对电路图稍作改动即可实现RS232/RS422或RS232/RS485转换功能。 心动了吗？不如赶快行动，拥有属于自己的五合一的接口转换器吧！-DIY Multi-function Converter (has debug through). The schematic diagram can be achieved USB/RS232, USB/RS422, USB/RS485 interface conversion. Simply install the USB driver can achieve the function of USB to serial, easy and convenient. Also just to make a minor amendment to the circuit can be realized RS232/RS422 or RS232/RS485 conversion. Echocardiography it? Action as soon as possible, with their own-one interface converter吧!

adc转换器，实现ad转换功能，可以进行自己的小项目设计-adc converter, ad conversion implementation, can design their own small projects

点阵16x64 C51源程序+仿真 点阵16x64 C51源程序+仿真-16x64 C51 lattice source+ Simulation lattice 16x64 C51 source+ Simulation

FYD12864-0402B液晶驱动程序-FYD12864-0402B LCD driver

该算法为带低通滤波的PID控制仿真源代码 用MATlab开发，能够管直接运行-The algorithm for the low-pass filtering with the PID control simulation using Matlab source code development, to pipe directly to run

C51与HT9170和HT9200接口程序(双音多频)-C51 with HT9170 and HT9200 interface program (DTMF)

这是用asm编写的IOA口使用程序，是用16位的凌阳单片机汇编-This is asm2 prepared by the IOA I use the program is the use of Sunplus 16 MCU Series

c8051fxxx单片机所有外设C例程，希望对大家有用。-c8051fxxx Microcontroller C routines for all peripherals and hope for all of us.