LED Scrolling code

[jmaurin]

Hi.
I've made a search and there is a lot of threads about led matrix, but i can't find the exact solution.
I'm build a LED matrix with 10pcs of 8x8 LED MAtrix. The matrix is bicolor, so i have 24 pins from each one (common anode). I know that i must have a tale for each char. My idea is to have this table AND a table of display (8x80) and while the text is displayed, change this main table doing a shift of coluns, so the last colum (right) will be moved do left and a new colum will be inserted. But how do i do that?!

For first time, i'll use only one color, so i can use 1byte for each colum. After, i'll need to create a struct and my table will be of this struct, where each pixel would be 0, 1 or 2 (blanck, red or green).

In the hardware, i'm using Allegros A6279, wich is 16bit current-cink with LED driver up to 90mA per port. It's one chip per display (for bicolor LED's).

Well, my main problem is how do i do the text scrolling over my board :|

[dyeatman]

Which PIC are you using.
How is the hardware connected?

[jmaurin]

I haven't the hardware built yet, but i'll use 18F4550 and about 6 ports: 3 for columns and 3 for rows. The A6279 is serial and use only these 3 pins to drive 16 ports.

I'll build a function that will get the byte (or bit) and send through CI's.

[dyeatman]

Here is a link to someone who is using serial latches similar to what you will be doing that should give you a little help.

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1215096929/10