Converting RGB to VGA using FPGA

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Por retrocanada76

Champion (460)

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24-10-2014, 13:43

Check this out:

https://www.youtube.com/watch?v=ufdfkPoN7ls

noise free now :D

Por retrocanada76

Champion (460)

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24-10-2014, 13:54

It digitizes and send 2 pixels to the local line RAM buffer, then 2 pixels are sent to the SDRAM framebuffer. I can only skip 2 pixels and not 1. Sounds strange but fpga works like a hardware, doingt things on the clock tick and things run in parallel.

Yesterday I did some tests, skipping every 16h or 32th set of 2 pixels. Although I get borders, the image looks pixelated.

Don't know yet how to solve this.

Por retrocanada76

Champion (460)

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24-10-2014, 13:55

Ah it digitizes 2 pixels because the SDRAM is 16-bit data line and I need to use the maximun bandwith. trying to use one pixel discarding the rest and I don't have time to do the job.

Por retrocanada76

Champion (460)

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24-10-2014, 13:57

hmm maybe the vga output I can do something...let's try again!

Por edoz

Prophet (2172)

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24-10-2014, 14:55

Nice Video again! The video output seems very good!

Por retrocanada76

Champion (460)

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26-10-2014, 05:59

Por ARTRAG

Enlighted (6243)

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26-10-2014, 06:24

Private video

Por retrocanada76

Champion (460)

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26-10-2014, 06:51

try now.

Por edoz

Prophet (2172)

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26-10-2014, 10:34

Wow!! SymbOS looks very cool on this monitor !!! How does it look if you change the resolution in SymbOS ?

BDW: You could 're- detect' the mouse by Pressing GRAPH+SELECT Wink without reboot Big smile Big smile

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