Problem with lcd code(unwanted characters!)

R

Roger_NO

Member

• Oct 18, 2008

• #1

Hi!

The problem with my code, is that when i call for an delay in my text table i get extra zeroes "009min" when alli really want is "09min"

Here's the code were the proble appairs!

Code:

COUNTDOWN_10_MIN
		ADDWF PCL,1
		RETLW '1'
		RETLW '0'
		RETLW 6DH
		RETLW 69H
		RETLW 6EH
		CALL DELAY_1MIN
                CALL RESET          ;clear screen to begin on line 1 with following characters
		RETLW '0'
		RETLW '9'
		RETLW 6DH
		RETLW 69H
		RETLW 6EH
		CALL DELAY_1MIN

 

Last edited: Oct 18, 2008

Nigel Goodwin

Super Moderator

Most Helpful Member

• Oct 18, 2008

• #2

You can't mix calls in your table like that, I'm not sure quite what you're trying to do, but you're doing it completely wrong.

 

R

Roger_NO

Member

• Oct 18, 2008

• #3

the delay worked though but all after that, not so good! so you are probably right! the thing i am trying to do is to make a 10 min delay, and make the count down appair on the lcd! i have looked at your tutorial, but it was hard for me to follow compleatly.

can you paste an example of a count down routine!

Roger

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Oct 18, 2008

• #4

There's a count up routine in my 7 segment tutorial, it counts from 0 to 99 and loops round.

 

R

Roger_NO

Member

• Oct 18, 2008

• #5

so what you are saying is that i can use the routine in an lcd relation?

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Oct 18, 2008

• #6

Roger_NO said:

so what you are saying is that i can use the routine in an lcd relation?

Click to expand...

Yes, simply increment, or decrement, a register or registers, and convert to decimal, then ASCII to display. Check tutorial 3.2 which displays a 16 bit incrementing counter as decimal.

 

R

Roger_NO

Member

• Oct 19, 2008

• #7

OK! Thank you