CALL DELAYP1Configuring HD44789 Display with PIC16F84

[hisham.i]

Am trying to write the configuration section for hd44789 display connected to pic16f84 micro controller, and i didn't understand from where can i get the data sent to the ports for the configuration...Example:
MOVLW 03H ;Why 03?
MOVWF PORTB
CALL CLOCK ; Subroutine previously defined
CALL DELAYP1;Subroutine previously defined

MOVLW 02H ; Why 02?
MOVWF PORTB
CALL CLOCK
CALL DELAYP1

MOVLW 02H
MOVWF PORTB
CALL CLOCK
CALL DELAYP1

MOVLW 08H
MOVWF PORTB
CALL CLOCK

 

[Jesus P]

do you need to do that in asmsembler or you are free to choose the languaje?? you can use PCWH picc to program in c lenguaje! its esasier.. if not... giveme a chance and I will reply this with asm! I am currently busy with my thesis

 

[MATLABdude]

As this thread is a year and a half old, hopefully the OP figured out that the HD44789 is a parallel input IC, and read through enough of the PIC16F84 datasheet to decode the assembly / figure out the PIN/PORT/TRIS configuration and operation.