display driver chip HT1621 the bottom procedures C51

友善臂开发板上使用的触摸屏驱动，s3c2410，2.6内核下使用-The development of friendly arm on the board using touch-screen driven, s3c2410, 2.6 kernel use

8051+ds 1307电话

开关稳压电源 开关稳压电源-Switching Power Supply Switching Power Supply

功能： 1、作为下位机采集8255数据并将此数据通过通讯送出，传输十路 2、采集数据为BCD，不处理后 3、通讯采用方式一-Features: 1, as under the 8255-bit machine data collection and data communications sent through the transmission path 2, 10, collecting data for the BCD, not after 3, means of communication using a

DDS芯片ad9854的单片机（C8051F020)控制及其外围原理图和PCB图-DDS chip AD9854 microcontroller (C8051F020) and its peripheral control schematic and PCB diagram

单片机音乐 用于播放简单的音乐 实现音乐盒功能-Singlechip music used to play simple music box music to achieve functional

单片机的程序，欢迎探讨-Microcomputer Program, welcomed the study

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.

• 直接PWM 输出控制马达转速 • PWM 频率可达31kHz • 三种输入型态控制转速：PWM 输入，VR 输入以及热敏电阻输入 • 操作电压：12VDC • 过电流保护 • 霍尔采集器输出控制转速反馈 • 马达转子锁定保护 • 马达转速可调-err

这是一个电子钟的设计源程序,可以实现摇控功能,LCD2402-This is the design of an electronic clock source, you can achieve the remote control function, LCD2402