单片机控制步进电机答:ZHENG EQU 30H FAN EQU 31H NO EQU 32H AS EQU 33H SS EQU 34H ORG 00H AJMP MAIN ORG 03H AJMP SUB_INT0 ORG 30H MAIN: MOV 10H,#01H MOV 11H,#03H MOV 12H,#02H MOV 13H,#06H MOV 14H,#04H MOV 15H,#0CH MOV 16H,#08H MOV 17H,#09H MOV 20H,#50 MOV 21H,#...