CAJ | 학술논문

采用单片机AT89 S52作为主控芯片，用4×4键盘电路进行音调的选择，音调值由LED数码管显示，设计了一款简易电子琴，实现了16个音调的发音和歌曲的播放。对音调的产生原理和节拍的控制进行了说明。最后利用PROTEUS和KEIL软件进行了联合仿真和调试，较好地实现了16音调发音和歌曲播放的功能。
채용단편궤AT89 S52작위주공심편，용4×4건반전로진행음조적선택，음조치유LED수마관현시，설계료일관간역전자금，실현료16개음조적발음화가곡적파방。대음조적산생원리화절박적공제진행료설명。최후이용PROTEUS화KEIL연건진행료연합방진화조시，교호지실현료16음조발음화가곡파방적공능。
A simple electronic piano is designed based on AT89S52 MCU, the tone is chosen by 4 × 4 keyboard circuit to and the tone value is displayed by the LED digital tube, which has the function of the 16 tones’s pronunciation and song’s play. At the same time, the tone realization principle and the control of the rhythm is described. Finally, the PROTEUS and KEIL softwares are used to simulate and debug, the functions of the 16 tones’s pronunciation and song’s play are achieved.