单片机直流电机汇编程序显示屏显示不了转速?求指导 -

标题: 单片机直流电机汇编程序显示屏显示不了转速?求指导 [打印本页]

作者: 51111144 时间: 2022-12-22 17:05
标题: 单片机直流电机汇编程序显示屏显示不了转速?求指导

ORG 0000H
      MOV P0,#7FH
      AJMP KEY1
      ORG 0100H
KEY1: MOV P2,#0FFH
      MOV A,P2
      CPL A
      JZ KEY1
      LCALL D10ms
      MOV A,P2
      CPL A
      JZ KEY1
      JB ACC.0,Pk0
      JB ACC.1,Pk1
      JB ACC.2,Pk2
      JB ACC.3,Pk3
      JB ACC.4,Pk4
      LJMP KEY1
      Pk0: LCALL Pkey0
      LJMP KEY1
Pk1: LCALL Pkey1
      LJMP KEY1
Pk2: LCALL Pkey2
      LJMP KEY1
Pk3: LCALL Pkey3
      LJMP KEY1
Pk4: LCALL Pkey4
      LJMP KEY1
Pkey0: JNB P2.0,Pkey0
         JNB P0.7,ON
         MOV P0,#07FH
         RET
ON:MOV P0,#0FFH
         RET
Pkey1: JNB P2.1,Pkey1
         JNB P0.7,ZZ
         MOV P0,#0H
         RET
      ZZ:MOV P0,#0FFH
         RET
Pkey2: JNB P2.2,Pkey2
         MOV P0,#0AFH ;
         RET
Pkey3: JNB P2.3,Pkey3
         MOV P0,#0CAH ;
         RET
Pkey4: JNB P2.4,Pkey4
         MOV P0,#0FFH ;
         RET
D10ms: MOV R7,#25
D1: MOV R6,#200
         DJNZ R6,$
         DJNZ R7,D1
         RET
         END
ORG 0000H;
MOV P2,#00H;
      MOV A,#20H;
      MOV P2.5,A.7;
      MOV P2.6,A.6;
      MOV P2.7,A.5;
      MOV DPTR,#1000H;
      MOV A,#0CH;
      LCALL LCD_CMD;
      MOV A,#01H;
      LCALL LCD_CMD;
      MOV A,#'D';
      LCALL LCD_DATA;
      MOV A,#'C';
      LCALL LCD_DATA;
      MOV A,#':';
      LCALL LCD_DATA;
      MOV A,#' ';
      LCALL LCD_DATA;
      MOV A,#1000H;
      LCALL LCD_INT;
      LCALL LCD_END;
END                               ;
LCD_CMD:
MOV DPTR,#8000H       ;
显示屏显示不了转速怎么回事大佬们

作者: 人中狼 时间: 2022-12-23 13:40
要选用带转速反馈的电机

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