Hi Raphael,

Can you run two small program and tell me about results?

1)
MOV R2,#10
MOV R7,#30H
DIGITS: MOV A,R7
CALL WRITE_LCD
INC R7
DJNZ R2,DIGITS
LOOP: JMP LOOP

2)
MOV R2,#26
MOV R7,#41H
LITERA: MOV A,R7
CALL WRITE_LCD
INC R7
DJNZ R2,LITERA
LOOP: JMP LOOP

What did you see on LCD?

So long,

Igor