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ST7038 Datasheet(PDF) 39 Page - Sitronix Technology Co., Ltd.

Part # ST7038
Description  Dot Matrix LCD Controller/Driver
PDF  63 Pages
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Manufacturer  SITRONIX [Sitronix Technology Co., Ltd.]
Direct Link  http://www.sitronix.com.tw
Logo SITRONIX - Sitronix Technology Co., Ltd.

ST7038 Datasheet(HTML) 39 Page - Sitronix Technology Co., Ltd.

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ST7038
Ver 1.3
39/63
2008/05/27
Initial Code (8051 MPU, Parallel 8-bit Interface)
;---------------------------------------------------------------------------------
INITIAL_START:
CALL
HARDWARE_RESET
CALL
DELAY40mS
MOV
A,#32H
;FUNCTION SET
CALL
WRINS_NOCHK
;8 bit,
CALL
DELAY40uS
MOV
A,#32H
;FUNCTION SET
CALL
WRINS_NOCHK
;8 bit,
CALL
DELAY40uS
MOV
A,#54H
;Internal OSC frequency
adjustment
CALL
WRINS_CHK
CALL
DELAY40uS
MOV
A,#31H
;FUNCTION SET
CALL
WRINS_CHK
;8 bit,
CALL
DELAY40uS
MOV
A,#7FH
;Contrast set
CALL
WRINS_CHK
CALL
DELAY40uS
MOV
A,#53H
;Power down/Contrast set
CALL
WRINS_CHK
CALL
DELAY40uS
MOV
A,#14H
; Bias/Follwer set
CALL
WRINS_CHK
CALL
DELAY40uS
MOV
A,#67H
; ICON/Power(B,R,F) set
CALL
WRINS_CHK
CALL
DELAY200mS
;for power stable
MOV
A,#0CH
;DISPLAY ON
CALL
WRINS_CHK
CALL
DELAY40uS
MOV
A,#01H
;CLEAR DISPLAY
CALL
WRINS_CHK
CALL
DELAY2mS
;---------------------------------------------------------------------------------
MAIN_START:
XXXX
XXXX
XXXX
;---------------------------------------------------------------------------------
WRINS_CHK:
CALL
CHK_BUSY
WRINS_NOCHK:
CLR
RS
;EX:Port 3.0
CLR
RW
;EX:Port 3.1
SETB
E
;EX:Port 3.2
MOV
P1,A
;EX:Port 1=Data Bus
CLR
E
MOV
P1,#FFH
;For Check Busy Flag
RET
;---------------------------------------------------------------------------------
CHK_BUSY:
;Check Busy Flag
CLR
RS
SETB
RW
SETB
E
JB
P1.7,$
CLR
E
RET



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