帮忙写个单片机的英文摘要本系统设计以AT89S51芯片为核心控制元件,辅以必要的外围电路,设计了一个具备复读与重放功能的复读机,它由5V直流电源供电.本系统在普通放音器的基础上加上一个

Question

帮忙写个单片机的英文摘要
本系统设计以AT89S51芯片为核心控制元件,辅以必要的外围电路,设计了一个具备复读与重放功能的复读机,它由5V直流电源供电.本系统在普通放音器的基础上加上一个复读键来进行控制.控制功能包括按下复读键控制电路通过A/D转换芯片采集语音信号存入单片机中,按复读键进行复读放音,再按放音键开始正常放音.A\D采样电路采用ADC0809来实现,D\A转换电路采用DAC0832来实现,并后置功率放大器来驱动扬声器工作.本论文主要介绍了复读机的软、硬件部分的设计,以及在设计、调试过程中遇到的问题及解决方案.

Answer 1

This system design take at89S51 chip as core controlling element,auxiliary by necessity peripheral circuit,designed one to have retakes courses with replays the function to retake courses machine,it by 5V direct-current power supply power supply.This system adds on one in the ordinary playback's foundation to retake courses the key to carry on the control.The control function including presses down retakes courses the key control circuit to store in the monolithic integrated circuit through a/D transformation chip gathering voice signal,presses retakes courses the key to carry on retakes courses the playback,presses again puts the key to start the normal playback.A \ the D sampling circuit uses ADC0809 to realize,D \ a switching circuit uses DAC0832 to realize,and the postpositioned power amplifier actuates the speaker work.The present paper mainly introduced retakes courses machine the software and hardware part's design,as well as the question which and the solution in the design,the debugging process meets.