Hi,
I've got a few 32x32 LED matrices from Adafruit, and have been through their 32x16 FPGA howto. It runs, in a way, on my 32x32 matrices, but of course it doesn't look right.
Is there anyone with one of these 32x32 matrices and an Altera FPGA in-hand that can offer me some guidance on how to make it work with these?
The changes that need to be done to the existing VHDL:
* 3 address lines to 4, with appropriate wiring change
* 2x8 scan to 2x16
I believe I have the first of these changes completed, and I am unsure about how to make the second.
The code as I got it from Adafruit is here:
https://github.com/adafruit/rgbmatrix-fpga and it works on my matrices, except instead of drawing 16 contiguous rows, it draws the top 8 rows, then a gap of 8 rows, and then the bottom 8 rows followed again by a gap of 8. Making the first of those listed changes indeed allows the FPGA to draw on all 32-rows, and because I haven't made the 2nd change, all I see is garbage.
I've scoured the Internet pretty well and I'm unable to find anyone that's adapted this code for the 32x32 matrix. I imagine it is an easy change to make, I'm just not there, yet.
Anyone care to help? thanks.