此程序针对C8051F124，使用定时器3中断，用于点亮绿色小灯。

急救车与交通灯）（1）南北与东西方向，每个方面由红黄绿三个灯控制（2）南北向：　红（30秒），黄（5秒），绿（25秒）　　　东西向： 红（35秒），黄（5秒），绿（25秒）　　　上述基本参数可以根据实际情况自行调整，灯的变化规律与实际路口规律相同，绿灯在最后5秒钟时，黄灯亮，然后红灯亮，不允许两个方面同时亮绿灯。（3）绿灯的时间显示在数码管上进行显示。（4）可以通过一个开关控制，当开关信号为0时，整个交通灯全灭提高要求：（1）设计一个紧急控制开关信号，当紧急开关信号为1时，两个方向的灯全为红灯。紧急开关撤消后，按照开关按下之前的状态继续运行（其参数要保存）。（2）设计一个夜间行车开关，当开关按下后，两个方向都只有黄灯闪烁，其它灯熄灭。（3）设计两个方向的亮时时间可调。-emergency vehicles and traffic lights) (1) North and South and east-west direction, each with three yellow-green from red lights control (2) to the north and south : red (30 seconds), yellow (5 seconds), Green (25 seconds) to things : red (35 seconds), yellow (5 seconds) Green (25 seconds) above basic parameters can be adjusted to the actual situation, the light changes with the actual law of the same intersection, the green light in the final five seconds, the yellow light is on, and then a red light, bright, not two fronts simultaneously bright green. (3) the green light at the time displayed on the digital display control. (4) can be controlled by a

刚购买的51单片机sch原理图和c语言程序，里面有详细的电路原理图和c语言程序，自己做单片机学习班的可以下载来参考-Just purchased 51 Singlechip sch schematic and c language program, which has a detailed circuit schematic diagram and c language program, to do their own single-chip learning classes can be downloaded to a reference

使用80C51单片机与PC机进行通信的源程序，能够使用串口线实现电脑控制单片机外围设备-80C51 Microcontroller and PC use to communicate the source machine, to use computer-controlled serial lines to achieve single-chip peripherals

基于H83664的智能小车控制系统 machine_austop.c、iodefine.h、intprg.c-based on the Intelligent Vehicle Control System machine_austop.c. iodefine.h, intprg.c

实时时钟RTC4553的测试程序，编译环境为伟福6000，汇编程序-real-time clock RTC4553 testing procedures, compile environment for the 6,000-fu, assembler

192*64_stn_ks108_液晶程序-192* 64_stn_ks108_ LCD procedures .......................

24C02EEPROM C源程序，I2C接口，很有用的一种接口，值得学习。-24C02EEPROM C source code, I2C interface, a very useful interface, it is worth learning.

yong 1602 yejing xian shi db15b20 de wen du ,mcu wei 89s52.-A small system to display temperature.

AVR单片机应用系统开发典型实例_4 -AVR Singlechip classic example of application systems development _4

版本：1.0 Target：89S51 程序描述：这个程序利用89X51连接绘图型LCD，然后显示出：-Version : 1.0 Target : devised procedures Description : The program uses 89 X51 graphics link-LCD, then showed :