LCD Row Update

Guest · Posted: Mon Dec 03, 2007 1:37 pm

Hello everybody,
How can I update one of the two row in LCD Screen in an independant way from other row ?
For example,
first row display, hello,
And then, I count something and display it on the second row by updating regularly.

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Use the lcd_gotoxy() function to set the cursor position of the LCD,
before you write text to it.
Here is the description of that function from the CCS LCD.c file:

Guest · Posted: Mon Dec 03, 2007 1:46 pm

Thanks for the reply.
But, if I attempt to change the position of x and y in each ten seconds, do I just need to adjust the new position with this method ?
Or, do I have to first clean the line and then put the new positioned value ?
the reason of asking is that I am going to put number from 0 to 999 by starting from the end of the LCD line (right side of the LCD line)
So, if number is less than 10, or bigger than 9 and less than 100, or bigger then 99 and less than 1000. As you see, I should update the position while doing this. So, do you think that is it enough to just change the position for this operation ? Or do I have to do anything else too ?

Guest · Posted: Mon Dec 03, 2007 2:46 pm

Any suggestions ?

Andreas · Joined: 25 Oct 2004 Posts: 136

there are mainly two solutions to it

1. Just make a format of the string you want to display so it will also output 4 Characters with leading zeros or leading spaces

2. Send out a space string prior to sending the value which will clear the character positions then send the new value out.

But if You want to have always right justified, first solutin will be better

best regards

Andreas