PS/2口向PC发送键盘信息；并通过UART发送

C8051f340,本程序为PCA16位PWM输出例程-C8051f340, the procedures for PCA16-bit PWM output routines

RS-485接口具有较强的抗干扰性，数据传输的距离较远，在一些应用中常常需要把RS-232标准的信号转换为RS-485的标准信号进传输。图中所示电路允许数据在RS-232/RS-485这两个不兼容的串行数据接口间传递。传输速度为480波特时，传输距离可达1750米。图中双RS-232收发器IC1将主机(PC)输出的RS-232电平转换为TTL电平，驱动高速RS-485收发器IC2 的输入，倒相器使IC2、IC3在受到起始位时被激活。-RS-485 trying to lay all the thoroughly bleed at the nose picking up the birthday 扰 fern cavity 强 ， Chu Huai basin cavity beat escapement for the birthday candle远Now ， Which instance, using Beckmannia中

利用单片机的定时器定时，令十字路口的红绿灯交替点亮和熄灭，实现主支路路口的交通信号灯控制（尽可能保持主线的畅通，即在通常情况下，保持主线的放行，只有在支线到达时，才放行支线），同时采用LCD显示倒计时时间及当前灯的状态。-The use of MCU timer timing, so that the crossroads at the traffic lights turn out light and to achieve the main slip road junction traffic lights control (as far as possible the smooth flow of the main line, that is, under normal circumstances, to maintain the release of the main line, and only arrived at the branch only when the release branch), while using LCD display countdown time and the current lighting condition.

我写的四字点阵，1664的。用字库显示。有1302的时间显示。C语言，有proteus的仿真-I wrote the word dot-matrix, in 1664. With font display. 1302 shows that there is time. C language, proteus simulation

基于c51开发的串口通讯程序。方便c51和电脑通讯-Developed based on the C51 serial communication program. C51 and computers to facilitate communication

uCOS在51系列MCU上移植的源代码，包括uCOS内核以及用户应用程序例子。无密码，包运行。-uCOS in 51 MCU transplant source code, including uCOS kernel and user application examples. No password packet operation.

C8051F340/1/2/3/4/5/6/7/8/9/A/B devices are fully integrated mixed-signal System-on-a-Chip MCUs designed specifically for USB applications.-C8051F340/1/2/3/4/5/6/7/8/9/A/B devices are fully integrated mixed-signal System-on-a-Chip MCUs designed specifically for USB applications.

MCS-51单片机实用子程序库,包括全套的数据转换与计算的子程序。-MCS-51 microcontroller practical subroutine library, including a full set of data conversion and calculation of the subroutine.

单片机基础，经典,初学必备-microcontroller based, classic, beginner essential

usb-isp,直接用usb对avr单片机编程,简单易用-usb-isp, the direct use of usb for avr Microcontroller Programmer, easy-to-use