gps全球定位系统定位数据的提取，协议：nmea0183

Real Time Operating Systems Real-Time Systems - Issues-Real Time Operating Systems Real-Time Systems- Issues

单片机控制LCD12864液晶显示驱动程序-SCM LCD12864 liquid crystal display driver

Thumb ARM Interworking Image for lpc-ARM Thumb Interworking Image for lpc

用单片机蜂鸣器实现911报警声音，采用中断延迟实现输出频率的变换。-Used to achieve single-chip buzzer 911 sounds, using interrupt latency to achieve an output frequency of transformation.

T6963C液晶240*128点阵单片机程序-T6963C LCD 240* 128 dot matrix single-chip program

本系统采用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器，实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮，倒计时剩5秒时黄灯闪烁警示（交通灯信号通过PA口输出，显示时间直接通过8255的PC口输出至双位数码管）；车辆闯红灯报警；绿灯时间可检测车流量并可通过双位数码管显示。本系统实用性强、操作简单、扩展功能强。 -The system uses MSC-51 series single-chip ATSC51 and programmable parallel I/O interface chip 8255A-centric device designed to control traffic lights, can be achieved in accordance with the actual traffic flow through the P1 port 8051 chip set red, green fuel Liang function of time traffic light cycle, the countdown five seconds left when the yellow light flashing warning (traffic lights through the PA output signal indicates the time directly through the PC port output 8255 to double-digits) vehicle alarm闯红灯 green time traffic flow can be detected through a double-digital display. The system practical, simple and strong extensions.

80C51F020的SPI接口源码-80C51F020 SPI interface FOSS

C51bbs上的字模软件，试用版。做液晶显示必备软件。-C51bbs the Fonts software, beta version. Do LCD necessary software.

LCD显示代码，驱动芯片为s6b0741，带有西文显示，中文显示，图片显示，数字显示等功能-LCD display code, and driver chips for the s6b0741, with the Spanish show, Chinese display, picture display, digital display and other functions

一个75HZ铃流实时检测程序，灵敏度很高，可以用于电话来电铃流检测。-a 75HZ bell flow real-time detection procedures, high sensitivity, can be used for phone calls Chu flow detection.