附带MP3功能的简易电子琴

北京理工大学珠海学院2018届毕业设计Electronic organ with MP3 functionAbstractThis design realizes a kind of electronic organ which can play like the traditionalelectronic organ and can play MP3 songs.In terms of hardware,the keyboard of electronicorgan is directly moved to TFT LCD screen,so that the number of keyboard of electronicorgan can be easily modified by program,and the portability of simple electronic organ canbe increased.The electronic organ with MP3 function in this design has two modes:electronicorgan playing and MP3 song playing.Through the software and hardware design,the modeconversion button triggers the external interrupt,which makes the program jump and realizesthe mode conversion.In the electronic piano playing mode,by obtaining the coordinates ofthe touch points on the TFT LCD screen to determine the pressed keys to achieve the toneselection and the input of the notes;in the playing mode,through the program control of thereading and writing of the memory module,the triggering of external interruption to achievethe song selection,play,pause,exit and other functions.The simple electronic organ designedin this paper has the characteristics of portability,large function expansion space and reliableperformance,which can meet the needs of more electronic organ lovers.Keywords:electronic organ;MP3 player;TFT LCD screen目录