procedures for the use of function, to read clock chip seconds, hours, days, mon...

这是我校用于课程设计的USB单片机的库函数。内容精彩，不可多得。-This is my school curriculum design for the USB MCU library functions. As exciting indeed.

单片机驱动标准PC机键盘的C51程序-Microprocessor standard PC keyboard C51 procedures

lcd display -lcd display

是一个为地铁施工现场开发的人数监控系统，使用ATMEGA16单片机做的，并用了红外传感器。-Is a subway construction site for the development of the number of monitoring systems, using ATMEGA16 microcontroller to do, and use the infrared sensor.

This version of the code is compatible only with the AT89C2051 due to the location of the data buffer and stack in RAM. The code may be modified to work with the AT89C1051 by relocating or resizing the buffer and stack to fit into the smaller amount of RAM available in the AT89C1051.

本文件提供了关于ATMEGA16A的SPI的硬件结构及其使用代码，同时，本文件也适用与ATMEGA16及ATMEGA16L-This document provides information on the SPI hardware ATMEGA16A structure and the use of code, at the same time, this document also applies with ATMEGA16 and ATMEGA16L

LCD driver HX8802_datasheet

介绍一种高分辨率的双路A/D转换器AD7711，能满足双路A/D采样要求。内容包括AD7711的特点， 内部寄存器结构和外部接口，并详细阐述了数据采集系统中AD7711与单片机AT89S8252的接口技术，包 括硬件接口电路和软件程序设计及其注意事项。 -Introduce a two-way high-resolution A/D converter AD7711, can satisfy the dual A/D sampling requirements. Include the characteristics of AD7711, the internal register structure and the external interface, and detailed data acquisition system with the AD7711 single-chip AT89S8252 interface technologies, including hardware interface circuit and software design and its attention to matters of procedure.

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.

这是一个用单片机来产生三角波的一个程序。-This is a single-chip microcomputer used to generate a triangular wave of a program.