51的C语言教程，对各位初学51的新人来说，是一本很好的指导教材。...

128X64点阵式源代码在51单片机程序实现 CPU处理器SST89C58-128X64 Dot Matrix source code of the 51 single-chip CPU processor program SST89C58

C8051f021单片机 ASm 头文件-C8051f021 SCM ASm header files

51单片机实现7段数码管显示源代码+Sch电路原理图-51 Singlechip realize 7 digital tube display source code+ Sch circuit schematic

用MCS51系列单片机开发的交通灯控制程序-MCS51 series single-chip with the development of the traffic lights control procedures

UCDOS16x16汉字字库的二进制字模文件-UCDOS16x16 汉字字库的???8 制字模文?

红外通信是利用950nm近红外波段的红外线作为传递信息的媒体，即通信信道。发送端采用脉时调制（PPM）方式，将二进制数字信号调制成某一频率的脉冲序列，并驱动红外发射管以光脉冲的形式发送出去；接收端将接收到的光脉转换成电信号，再经过放大、滤波等处理后送给解调电路进行解调，还原为二进制数字信号后输出。-Infrared communication is the use of near infrared 950nm infra-red as the transmission of information media, namely communication channel. The sending end when the use of pulse modulation (PPM) approach will be a binary digital signal into a frequency modulation of the pulse sequence, and driver fired infrared tube to the form of light pulses sent receiver will receive the pulse of light conversion to electrical signals , and then, after amplification, filtering and other treatment to the demodulation circuit after demodulation, reduced to a binary digital signal after the output.

正转，转四相步进电机，每相间隔70ms。C51程序 51单片机通用。-Is to switch to four-phase stepper motor, each interval of 70ms. 51 Single-chip Universal C51 procedures.

51单片机及其C语言程序开发实例第7章节-51 SCM and its C language program to develop examples of section 7 of chapter

With the program AD9854C.exe one can set and tune the frequency in CW-mode. For use as a receiver LO also IF can be given and the both possible receiving frequencies are printed on the screen. The level in Q-outputs can be varied by giving the wanted attenuation in dB. This function is done by controlling a 12b digital multiplier in the device. In this case the level decreases somewhat with increasing frequency as it does in DDS devices. Alternatively the inverse sinc correction can be chosen, in which case the output is flat and high. -With the program AD9854C.exe one can set and tune the frequency in CW-mode. For use as a receiver LO also IF can be given and the both possible receiving frequencies are printed on the screen. The level in Q-outputs can be varied by giving the wanted attenuation in dB. This function is done by controlling a 12b digital multiplier in the device. In this case the level decreases somewhat with increasing frequency as it does in DDS devices. Alternatively t

DK3200 USB DEMO for KEIL C