微机原理远程数据采集系统设计

古城微笑少年丶 2022-05-30 03:56 131阅读 0赞

Created with Raphaël 2.1.2开始初始化设置周期？修改延时周期数据采集延时发送yesno

## 下位机 ##

S_SHOW MACRO STRING
       MOV AH,9
       MOV DX,OFFSET STRING
       INT 21H
    ENDM
    
    DATAS SEGMENT
      RESULT DB 40H
      num_h db 0
      num_l db 0
      msg db 'plaese set time_cycle:','$'
      ;msg db 'plaese set time_cycle:',0AH,0DH,'$'
      str1  db 'Please input! Enter q key exit!',0ah,0dh,'$'
      errm db 'Error!',0ah,0dh,'$'
      s1     db 0
      ;延时周期 
      time_cycle DB 3
    DATAS ENDS
    
    STACKS SEGMENT
        ;此处输入堆栈段代码
    STACKS ENDS
    
    CODES SEGMENT
        ASSUME CS:CODES,DS:DATAS,SS:STACKS
    START:
        MOV AX,DATAS
        MOV DS,AX
    
        ;;;;;;;;;;;;;8255初始化
        call init_8255
    
        ;;;;8253初始化
        call init_8253
    
        ;设置延时周期
        call SetTimeCycle
    
        ;;;发送初始化
        call init_send
    
        againshow:
          ;调用数据采集
          caLl SHUJUCAIJI
    
          ;显示数据
        ;  call show 
    
          ;发送数据
          call send
    
          ;判断键盘是否有输入
          MOV AH,0BH
          INT 21H
          CMP AL,0
          JE againshow
    
        MOV AH,1      
        INT 21H
        JMP START
    
    ;显示数据
    show proc
        MOV AL, RESULT
        MOV BL,50
    
        MUL BL
        MOV AL,AH
        MOV AH,0
        MOV BL,10
        DIV BL
        ;ASCLL码加30
        ADD AL,30H
        MOV num_h,AL
    
        ADD AH,30H
        MOV num_L,AH
    
    
        MOV AH,02H
        MOV DL,num_h
        INT 21H
    
    
        MOV AH,02H
        MOV DL,'.'
        INT 21H
    
        MOV AH,02H
        MOV DL,num_L
        INT 21H
    
        MOV AH,02H
        MOV DL,'V'
        INT 21H
    ret
    show endp   
    
    ;功能：回车换行
    huiche proc
      MOV AH,02H
      MOV DL,0AH
      INT 21H
    
      MOV AH,02H
      MOV DL,0DH
      INT 21H
    RET
    huiche endp
    
    
    ;功能：设置延时周期
    SetTimeCycle proc
    
      S_SHOW msg
      ;循环判断是否有输入
      again: MOV AH,0BH
        INT 21H
        CMP AL,0
        JE again
      ;因是字符串
      ;获取的ASCLL码值减30 得到延时周期
      MOV AH,1
      INT 21H
      sub AL, 30H
      MOV time_cycle, AL
    
      MOV AH,02H
      MOV DL,0AH
      INT 21H
    
      MOV AH,02H
      MOV DL,0DH
      INT 21H
    
    
    RET
    SetTimeCycle endp
    
    ;功能：数据采集
    ;出口：返回RESULT 数据采集的值
    SHUJUCAIJI proc
       MOV DX, 0E098H;通道0 对应298
    
       OUT DX,AL ;启动
       CALL delay 
       MOV DX,0E098H;
       IN AL,DX;读取电压 al
       MOV RESULT,AL 
    RET
    SHUJUCAIJI ENDP
    
    
    ;延时子程序
    delay proc
    
       MOV DX,0E08BH
       MOV AL,01110000B
       OUT DX,AL
    
       MOV DX,0E089H
       ;计算相乘
       MOV AL,time_cycle
       MOV BL,100
       MUL BL   
    
       ;先传低后传高
       OUT DX,AL
       MOV AL,AH 
       OUT DX,AL
    
       ;取出C端口     
        MOV DX,0E082H
       ;看最高位是否是高电平
       ISNO:IN AL,DX
       TEST AL,1
       JZ ISNO
    
    RET  
    delay endp;
    
    
    ;功能：发送数据
    send proc
        mov al,RESULT
        ;发送
        mov ah,1
      mov dx,0
    
        int 14h
    send endp
    
    init_8253 proc
    ;;;;8253初始化
        ;给送控制字, 使其工作在方式三
        MOV DX,0E08BH    
        MOV AL,00110110B     
        OUT DX,AL
        ;送通道0的计数初值
        MOV DX, 0E088H    
        MOV AX,10000
        ;送低送高
        OUT DX,AL
        MOV AL,AH
        OUT DX,AL
    
    RET  
    init_8253 endp
    
    
    init_8255 proc
        MOV DX,0E083H
        MOV AL,10000001B
        OUT DX, AL
    RET  
    init_8255 endp
    
    init_send proc
    mov ah,0
        mov dx,0
        mov al,10111011b
        int 14h
    RET  
    init_send endp
    
    
    CODES ENDS
        END START

## 上位机 ##

DATAS SEGMENT
        ;此处输入数据段代码  
        str1 db 'Please input! Enter q key exit!',0ah,0dh,'$'
        ;str2 db 'V=:',0ah,0dh,'$'
        errm db 'Error!',0ah,0dh,'$'
        num_L db 0
        num_H db 0
        RESULT DB 40H
        data db 0
    DATAS ENDS
    
    STACKS SEGMENT
        ;此处输入堆栈段代码
    STACKS ENDS
    
    CODES SEGMENT
        ASSUME CS:CODES,DS:DATAS,SS:STACKS
    START:
        MOV AX,DATAS
        MOV DS,AX
        ;此处输入代码段代码
        mov ah,9
        mov dx,offset str1
        int 21h
    
        mov ah,0
        mov dx,0
        mov al,10111011b
        int 14h;调用中断
    
    send:
        mov ah,3;读入串行口状态
        mov dx,0
        int 14h
        test ah,00100000b;判断输入缓冲器是否为空
        jz receive;空跳转到接收
    
        mov ah,0bh;检查标准输入状态
        int 21h
        cmp al,0
        je receive              ;未准备好输入就跳到接收
    
        mov ah,8
        int 21h                 ;无回显的控制台输入
    
        mov data,al
    
        cmp data,'q'
        je exit
    
    receive:
        mov ah,3
        mov dx,0
        int 14h
        test ah,1;判断输入缓冲器是否为满
        jz send;不满跳到发送
    
        mov ah,2;读入缓冲器的数据
        mov dx,0                ;收字符
        int 14h
        test ah,10001110b
        jnz error
    
    
    
        mov RESULT,al
        call show   
    
        cmp al,'q'
        je exit
    
        mov dl,al
        mov ah,2
        int 21h;显示
    
        jmp send
    exit: 
        mov dx,0
        mov ah,1                ;输出字符
        int 14h
    
        test ah,80h
        jnz error
    
        mov ax,4c00h
        int 21h
    
    error: mov ah,9
        mov dx,offset  errm
        int 21h
        mov ax,4c00h
        int 21h
    
    show proc
        MOV AL, RESULT
        MOV BL,50
    
        MUL BL
        MOV AL,AH
        MOV AH,0
        MOV BL,10
        DIV BL
        ;ASCLL码加30
        ADD AL,30H
        MOV num_h,AL
    
        ADD AH,30H
        MOV num_L,AH
    
    
        MOV AH,02H
        MOV DL,num_h
        INT 21H
    
    
        MOV AH,02H
        MOV DL,'.'
        INT 21H
    
        MOV AH,02H
        MOV DL,num_L
        INT 21H
    
        MOV AH,02H
        MOV DL,'V'
        INT 21H
        call huiche
    ret
    show endp
    
    ;功能：回车换行
    huiche proc
      MOV AH,02H
      MOV DL,0AH
      INT 21H
    
      MOV AH,02H
      MOV DL,0DH
      INT 21H
    RET
    huiche endp
    
    
    CODES ENDS
        END START