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With 12864 Pin 5V Blue Screen LCD Screen Chinese MCU LCD Font Matching

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US$ 1 - 100 MOQ: 1 Piece
Key Specifications
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Business Type:
Manufacturer, Trading Company, Distributor/Wholesaler
Year Established:
2015
Factory Size:
Below 1,000 square meters
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Shenzhen Huachengweiye Electronics Co., Ltd.
Gold Verified Supplier
5Yrs
Payment & Shipping
Payment Methods:
Port of Shipment:
HK
Delivery Detail:
Delivery time depends on order quantity.

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12864 blue screen with Chinese font

Data address:/s/1eQsuNQi

ST7920

*************************************;
8BIT (INTERFACE CONTROLLER:ST7920)
128 * 64 dot matri
EDITOR:ZY;
CRYSTAL:12MHz;
RW=P3.1 E=P3.2 D0-D7=P1 RS=P3.0
*************************************;

EQU P3.0 H=DATA; RS, L=COM
EQU P3.1 H=READ; RW, L=WRITE
EQU P3.2 E;

COM EQU 30H; the control word register unit
DAT EQU 31H; display data buffer unit
CODER EQU 32H; the character code storage unit
ADDR EQU 33H; address register unit

0000H ORG
MAIN AJMP
0030H ORG

MAIN:
SP #60H, MOV
P3 #0F8H, MOV
DEL_20MS LCALL
DEL_20MS LCALL
INI LCALL; enter the initialization subroutine

ADDR #80H, MOV
DPTR #WEL_1, MOV
W_LINE LCALL
ADDR #90H, MOV
DPTR #WEL_2, MOV
W_LINE LCALL
DEL_1500MS LCALL

ADDR #80H, MOV
DPTR #WEL_3, MOV
W_LINE LCALL
ADDR #90H, MOV
DPTR #WEL_4, MOV
W_LINE LCALL
DEL_1500MS LCALL

ADDR #80H, MOV;
DPTR #HZ_1, MOV;
W_LINE LCALL
ADDR #90H, MOV;
DPTR #HZ_2, MOV;
W_LINE LCALL
DEL_1500MS LCALL; after the delay shows the net page

ADDR #80H, MOV;
DPTR #HZ_3, MOV;
W_LINE LCALL
ADDR #90H, MOV;
DPTR #HZ_4, MOV;
W_LINE LCALL
DEL_1500MS LCALL

MAIN LJMP

INI:
COM MOV, #30H; function setting, basic instruction
WCOM LCALL
COM #30H, MOV; basic instruction, 8-bit mode, basic instruction
WCOM LCALL
MOV COM, #0CH; display, cursor, turn white
WCOM LCALL
COM #01H, MOV; clear display
WCOM LCALL
MOV COM, #06H; enter the set point, 7 cursor right, the picture is not moving
WCOM LCALL
RET

W_LINE:; write a line of 8 Chinese characters subroutine
COM ADDR, MOV;
WCOM LCALL;
MOV R2, #20; 16 cycles, continuous write 8 or 16 ASCII Chinese characters
W_L1:
A #00H, MOV
A A+DPTR, MOVC
CODER A, MOV
WCODE LCALL
DPTR INC
R2 W_L1, DJNZ
RET

WCOM:; write instruction subroutine
CLR RS
RW SETB
WC1:
P1 #0FFH, MOV
SETB E
A P1, MOV
CLR E
ACC.7 WC1, JB; check busy
CLR RW
P1 COM, MOV
SETB E
CLR E
RET

WCODE:; write code subroutine
CLR RS
RW SETB
WCO1:
P1 #0FFH, MOV
SETB E
A P1, MOV
CLR E
ACC.7 WCO1, JB
RS SETB
CLR RW
P1 CODER, MOV
SETB E
CLR E
RET

DEL_20MS:
R0 #20, MOV
D2:
R1 #200, MOV
D1:
NOP
NOP
NOP
R1 D1, DJNZ
R0 D2, DJNZ
RET

DEL_100MS:
DEL_20MS LCALL
DEL_20MS LCALL
DEL_20MS LCALL
DEL_20MS LCALL
DEL_20MS LCALL
RET

DEL_500MS:
DEL_100MS LCALL
DEL_100MS LCALL
DEL_100MS LCALL
DEL_100MS LCALL
DEL_100MS LCALL
RET

DEL_1500MS:
DEL_500MS LCALL
DEL_500MS LCALL
DEL_500MS LCALL
RET


WEL_3:
DB 128 * 64 Chinese font"

HZ_1:
DB "inside the 8192 Chinese characters"
HZ_2:
DB serial and parallel selection"
HZ_3:
DB "adaptation M6800 timing"
HZ_4:
DB "* * thank you for using * *"


END

 

 

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Shenzhen Huachengweiye Electronics Co., Ltd.
Gold Verified Supplier
5Yrs
Business Type
Manufacturer, Trading Company, Distributor/Wholesaler
Year Established
2015
Factory Size
Below 1,000 square meters
Total Employees
11 - 50 People
Contact Supplier Request Quote Chat Now

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