单片机电子琴编程中各个音的频率的确定答://本程序的单片机晶振采用11.0592M include <reg51.h> sbit speaker=P1^2;unsigned char timer0h,timer0l,time;//世上只有妈妈好数据表 code unsigned char sszymmh[]={ 6,2,3,5,2,1,3,2,2,5,2,2,1,3,2,6,2,1,5,2,1,6,2,4,3,2,2,5,2,1,6,2,1,5,2,2,3,2,2,...
用八个按钮控制p1端口使电子琴发出do,re,mi,fa,so,la,si,deo(用单片机...答:这是以前写的,用的是P0口。T0HEQU 30H T0L EQU 31H ORG 0000H LJMP MAIN ORG 000BH LJMP T0ISR ORG 0030H MAIN:MOV SP,#5FH MOV TMOD,#01H SETB ET0 SETB EA LOOP:MOV DPTR,#FREQ MOV A,P2;控制高中低音区 MOV R1,#0 ANL A,#03H JB ACC.0,LOOP01 MOV R1,#14 SJMP LOOP0...