LCD display for 8051 F340

[Cory]

I have written some assembly code for a digital clock.

As far as I can tell the timer works properly.

 

;  Timer2_ISR:
;
;  Every 0.2 seconds this ISR will be called.
;  You will need to add code to take action during this IRS.
;
;*****************************************************************************

T2ISR:

;         ADD YOUR TIMER2 ISR CODE HERE!!!!

            clr  TF2H                 ; Clears Timer 2 flag because unlike
                                      ;  timers 0 & 1 the hardware does not
                                      ;  clear timer 2 flag automatically
                                      ;  during an ISR
            
                        DJNZ 50H, FIVE            ; 5 TIMES COUNTER FOR 1 SECOND TIMER
                        MOV  50H, #5              ; RELOAD 50H
                        INC  TIME_SECOND                    ; +1 SECOND
                        DJNZ 55H, FIVE                        ; 60 SECONDS COUNTER
                        MOV  55H, #60                            ; RELOAD 55H
                        INC  TIME_MINUTE          ; +1 MINUTE
                        DJNZ 56H, FIVE            ; 60 MINUTES COUNTER
                        MOV  56H, #60             ; RELOAD 56H
                        INC  TIME_HOUR            ; +1 HOUR
                        DJNZ 57H, FIVE            ; 13 HOURS COUNTER
                        MOV  57H, #13                          ; RELOAD 57H
                       
FIVE:                reti                      ; Return to “where ever” from interrupt

 

 

I am having trouble having it display to my LCD.

I know I would have to use a sub-routine to call the display; or maybe use push and pop. I am not sure….

 

 

[dinesh]

Hi Cory.,.,

 

              I am Dinesh And I am Working on 8051F340 Since last 6 months

You should use Timer0 for generating Desired delay. There is same mathod which is used in 

[Cory]

Hello Denish,

 

Thank you for taking the time to try and assist me, but I do not see the rest of your post. It ends at “the same method as in”…

 

Thanks regardless haha.

[Author]

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