PIC18系列下的DS1302时钟程序 源吗哦 测试通过可以用

凌阳单片机网络系统源码-Sunplus SCM network source

单片机模拟spi通讯，可用于对spi接口的存储器的读写访问-Single-chip simulation spi communication, can be used to spi interface to read and write memory access

鉴于MCS-51系统只提供“二级中断嵌套”，提出扩展51系统中断优先级的纯软件方法。其利用51系统内建的中断允许寄存器IE和中断优先级寄存器IP，通过屏蔽字机制来实现；以C51的形式，给出这种扩展方法的函数库实现，为该方法的使用赋予友好、简洁的用户接口。-Given MCS-51 systems only provide "two interrupt nesting," expanded 51 priority system interruption of pure software. The use of 51 built-in system allows interruption Register IE and priority interrupt register IP, through word shielding mechanisms to achieve; C51 in the form of this expansion is the way to achieve functions, methods for the use of empowerment friendly, simple user interface.

介绍一种应用于实际工业生产现场中的大型LED显示系统的设计和研制。-A site used in the actual industrial production of large-scale LED display system design and development.

通过51单片机对MB9200中文字符叠加芯片进行控制，实现在视频上叠加字符。-Through 51 Singlechip Chinese characters superimposed on the MB9200 chip control, realize characters superimposed on the video.

用8个数码管，用一片48和一片138控制 的子程序，-with eight digital control with a 48 and a control subroutine 138,

把单片机串口通讯改造为SPI通讯接口源程序，使用C51语言编写，可以用于MCS8051单片机-put microcontroller serial communications to transform SPI interface source, the use of C51 language, which can be used Mcs8051 MCU

该程序提供步进马达的制造原理,控制原理.和C51控制标准程序,按此方法就可以作出!-the procedures for the motor manufacturing principles, the principle of control. C51 control standards and procedures, according to method can make!

51单片机控制产生4路标准舵机PWM（周期20ms，脉宽1~2ms,分辨率0.001ms)的代码，含有与PC的通讯功能，通讯严格握手，测试可靠。keil平台开发，包含串口通讯的指令定义和说明-51 single-chip microcomputer to control the steering gear have a 4-way standard PWM (cycle 20ms, pulse width 1 ~ 2ms, resolution of 0.001ms) code, which contains the communication functions with the PC, communications handshake Strict, tested and reliable. keil platform development, including serial communication command definitions and descriptions

万龙开发板的原理图和pcb图，仅供交流和学习用。-Wanlong development board schematic and pcb map, only with communication and learning.