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標(biāo)題: 51內(nèi)核單片機(jī)填表法驅(qū)動WS2812 [打印本頁]

作者: liu2454004961 時間: 2024-2-2 22:08
標(biāo)題: 51內(nèi)核單片機(jī)填表法驅(qū)動WS2812
；航順8位單片機(jī)，錦銳CA51F551S1，可調(diào)光，調(diào)速，調(diào)燈組
LEDYS          EQU       030H
LEDWTML          EQU       0CEH
LEDWTMH          EQU       0CEH
LEDAT1          EQU       0C7H
PWMEN          EQU       090H
PWM2DIVL       EQU       0ADH
PWM2DIVH       EQU       0AEH
PWM2DUTL       EQU       09FH
PWM2DUTH       EQU       091H
PWM2CKD          EQU       0B3H
PWM2CON          EQU       0BBH
LEFLG          EQU       0BFH
P34F             EQU       0801CH
CKCON          EQU       08030H
LEDUTL          EQU       08060H
LEDUTH          EQU       08061H
         ORG 0000H
   LJMP MAIN
   ORG 0040H
MAIN:       MOV    A , #05H             ;定義P3.4作為PWM信號輸出腳
            MOV    DPTR, #P34F
            MOVX @DPTR,A
            MOV A , #80H             ;定義時鐘控制寄存器地址空間
            MOV    DPTR, #CKCON       ;打開 IRCH 時鐘
            MOVX @DPTR,A
            MOV A , #00H
            MOV    DPTR, #LEDUTH       ;設(shè)置位碼 1 時間
            MOVX @DPTR,A
            MOV A , #13H
            MOV    DPTR, #LEDUTL
            MOVX @DPTR,A
MAIN1:
            MOV PWM2CON,#58
            MOV PWM2CKD,#0       ;設(shè)置預(yù)分頻系數(shù)，設(shè)置為 0 表示不分頻

      MOV PWM2DIVH,#0       ;設(shè)置位周期時間
      MOV PWM2DIVL,#20

      MOV PWM2DUTH,#0       ;設(shè)置位碼 0 時間
      MOV PWM2DUTL,#6

      MOV LEDWTMH,#0       ;設(shè)置暫停時間
      MOV LEDWTML,#50

      MOV PWMEN,#4          ;PWM2 使能

            SETB EA          ;開總中斷

AA3:       MOV LEDYS,#00H
            ACALL  TEST
AA2:       MOV A,LEDYS
            MOV DPTR,#TAB
            MOVC A,@A+DPTR
            MOV  LEDAT1,A
AA1:       MOV  A,LEFLG
            CJNE A,#40H,AA1
            INC  LEDYS
      MOV  A,LEDYS
      CJNE A,#24,AA2 ;8個LED
      MOV  LEDYS,#00H
      ACALL TEST
            LJMP  AA3
TEST: CLR       P34F
      MOV       R6,#100
D7:    MOV       R7,#255
      DJNZ       R7,$
      DJNZ       R6,D7
RET
TEST1:  CLR       P34F
      MOV       R5,#255
D8:    MOV       R6,#255
D6:    MOV       R7,#255
      DJNZ       R7,$
      DJNZ       R6,D6
      DJNZ       R5,D8
RET
TAB: DB 40H,00H,00H, 00H,40H,00H, 00H,00H,40H, 40H,40H,00H, 40H,00H,40H, 00H,40H,40H, 40H,40H,40H, 40H,0F0H,0F0H
            END

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CA51F55S1驅(qū)動WS2812

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走馬顯示效果

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走馬顯示效果

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