PD控温程序（汇编）

                               INC   PCWFL
AOOL1:
                               MOV   A,BCPCHL
                               MOV   SCPCHL,A
                               MOV   A,BCPCHH
                               MOV   SCPCHH,A
                               JB    BLPCFH,MLLP1        ;将本次偏差数值与符号赋给上次保存地址
                               CLR   SCBLPCFH
                               JMP   MLLP2
MLLP1:
                               SETB  SCBLPCFH

MLLP2:
                               MOV   R2,BCPCHH
                               MOV   R3,BCPCHL
                               MOV   R4,#0             ;求kp*e(t)
                               MOV   R5,#0
                               MOV   R6,#0
                               MOV   R7,BLXS
                               CALL  MULD
                               MOV   BLCSL,R5          ;结果送到比例常数存储
                               MOV   BLCSH,R4
                               MOV   R3,PCWFL
                               MOV   R2,PCWFH
                               MOV   R4,#0
                               MOV   R5,#0
                               MOV   R6,#0
                               MOV   R7,WFXS
                               CALL  MULD              ;求kd*(e(t)-e(t-1))
                               MOV   WFCSL,R5
                               MOV   WFCSH,R4          ;结果送到微分常数存储
                               JB    BLPCFH,FOOL2      ;比例相为负，不计算结果，直接赋pouth=#00  poutl=#200,退出中断
                               JB    WFPCFH,AOOL2      ;微分项为负转走
                               CLR   C
                               MOV   A,BLCSL
                               ADD   A,WFCSL           ;KP>0,KD>0
                               MOV   ZSJCSL,A          ;将结果存入总时间常数中  kp*e(t)+kd*(e(t)-e(t-1))
                               MOV   A,BLCSH

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本文关键字：程序  51单片机，单片机-工控设备 - 51单片机