80C51单片机中利用蜂鸣器实现电子琴的源程序。包含蜂鸣器的datasheet。...

VHDl硬件描述语言实现单片机与cpld通信-VHDL hardware description language to achieve communication between SCM and CPLD

本库利用51的timer2，9600bps适用于有片内外部存储器的51芯片占用32byte缓存，重写putchar,getchar函数，循环队列，后台操作。-for the use of timer2 51, 9600 applied to the external memory unit within the occupied 32byte 51 chip cache, rewritten putchar, getchar function, circulating cohort, background operation.

NBA24秒计时器设计，用单片机设计成功的，包括最终的报告-NBA 24 seconds timer design

Nokia3310的proteus仿真模型model.zip

74HC595程序,C51版的,己调试过-74HC595 procedures, C51 version, others have been debug

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本文介绍了AT89C2051单片机的性能和特点，并在分析了超声波测距原理的基本系统框图。该设计系统经校正后，其测量精度可达0.1米-This paper introduces the AT89C2051 performance and features, and the analysis of the ultrasonic distance measurement principle diagram of the basic system. The design of the system calibration, measurement accuracy of 0.1 meters

keil编译,单片机资料,rs485通讯。-keil compiler, microcontroller information, rs485 communication.

我自己做的给予ST公司的upsd3234a单片机的频率计。可以测量10K以下的频率。这是此频率计的自检程序，在KEIL上调试仿真通过。-I have to do to give the ST

红外遥控器的接收程序的另一个版本，其中的显示驱动不同-infrared remote control procedures for the reception of the second version, which shows the different drives