David Elias

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fpga would be for refreshing rgb panels arrangement with video memory content from raspberry pi, but; what interface between rpi and fpga will be?, how much extern memory will be...

Could be any one of them sending frambuffer from PI by spi I think, and receiver update the memory with current pi screen content to show in rgb led panels...

> > > Re: fpga > > Possible fpga board design could be a PCB with this module: https://www.xilinx.com/products/boards-and-kits/1-12hrhst.html soldered by its gpio pins, add level shifter ICs on the...

> > > I'm not sure how significant the difference between your Spartan 6 and my proposed Spartan 7 is, but I remember reading due to block RAM size limitation...

Greetings, -What hardware connections do you have? adapter? which one? -Also, try your module as two 64x64 modules: led-chain=2, test without --led-panel-type=FM6126A, -This option: --led-slowdown-gpio=4 is for Raspberry Pi 3,...

Greetings, First. Pictures of your connector (panel's)

22 panels chained are too much. Try to splity that chain in half, 11-11 ie, two parallel or, three parallel of 7 each (one of 8 panels)

![image](https://user-images.githubusercontent.com/1075807/155778912-dfabab61-d1ef-41b1-9fc3-6afa589088e2.png) You have to build a large cable for the second half add : --led-parallel = 2; --led-chain=11 (if this is the half of panels) The problem, is find out...

Look, when I still not have the electrodragon HAT for the raspberry, I used JUST CABLEs, those female-male cables to wiring to the rgb panel INPUT. Do as I did,...

> --led-multiplexing=0 I think that value is the default. Try with 0-14 (top I think) values with ONE PANEL (power supply?)