01 July 2015, 07:58 | #1 |
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Amiga HDMI output
Hello,
I am done with my latest project Please feel free to check out the youtube link below. [ Show youtube player ] Be aware that this board has some state of the art, expensive as hell, parts. Lets see what the interest is in this gadget and go from there. Regards, StaringL |
01 July 2015, 10:18 | #2 |
Glastonbridge Software
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wow, nice work!
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01 July 2015, 10:34 | #3 |
Italian Amiga Zealot
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This is exactly one of those "I do it because I can" projects the Amiga world is so renowed for Great job!
What's the BOM at the moment? Looks like it's going to be expensive as heck! |
01 July 2015, 10:57 | #4 |
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Very nice - I'd consider buying one! Will it work with AGA as well as ECS?
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01 July 2015, 11:07 | #5 |
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Very Very nice. Well done. This is just amazing, Kinda speechless.
What's the plan on how we all can have or make one of these? |
01 July 2015, 11:34 | #6 |
Collector
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Location: Staffordshire. UK
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Very nice design! Love it.
Would be good to see an external RGB to HDMI adapter like yours on the market. |
01 July 2015, 12:00 | #7 |
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Location: Helsinki / Finland
Age: 43
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Good idea, but I must ask: Does it really change 50Hz -> 60Hz? Why? :-(
Also you write 576i but the Amiga normally outputs 288p.. Could you shed some light on the details please? |
01 July 2015, 12:04 | #8 |
Amiga Nuts!
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why 60 Hertz ? think it's just because most of the screens (TV, Monitors, etc...) that are HDMI supports that by default... ;-) try to find a NEW monitor that is 50Hz native, saddly it are no so many now.
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01 July 2015, 12:28 | #9 |
Glastonbridge Software
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TVs should still support 50Hz, i'd be surprised if not. personally i'm more worried about the pixels being stretched into widescreen proportions.
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01 July 2015, 12:49 | #10 | |
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Quote:
If a display takes in HDMI, there is a high possibility that it support 50Hz via HDMI too. I'm guessing this project allows you to choose the refresh rates, so that's why I asked for details. :-) |
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01 July 2015, 13:17 | #11 |
ex. demoscener "Bigmama"
Join Date: Jun 2012
Location: Fyn / Denmark
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cool project.. why not just use your tv's RGB input, it has similar circuitry already built in?
too bad it will reduce the color depth on aga machines, though (due to only 16 bit color support). |
01 July 2015, 13:42 | #12 | |
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Quote:
Last edited by Retro-Nerd; 01 July 2015 at 13:50. |
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02 July 2015, 13:32 | #13 |
ex. demoscener "Bigmama"
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02 July 2015, 20:47 | #14 |
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Thanks everyone for kind words about this gadget
As for everything, the price varies with quantity. For one board I would think the BOM is around 13 (ad9984a) + 14 (adv7511w) + 20 (fpga) + 13 (board and misc stuff) = 60 euros. For 25 boards I would estimate the price will drop with around 20-30%. |
02 July 2015, 20:53 | #15 |
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I am not sure, but anything that outputs 576i and probably similar formats like 480i (not tested) will be converted. I have tested with Amiga 500 and Amiga 1200 in PAL. Multiscan and other formats will not work. In most games I think 576i is used but I am not sure.
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02 July 2015, 21:00 | #16 |
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Everything you need will be on my website to make this board yourself. However the pcb itself will be a little tricky since it will be very expensive if making just one. If you want me to make and assemble one for you, you could write me a message on this forum (but it will be quite expensive if I just make one). An alternative would be for me to sell you just the pcb (I have 5-6 left I think). Keep in mind that you will need some tools to flash the MCU and the FPGA if you want to have a try and assemble yourself.
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02 July 2015, 21:10 | #17 | |
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Quote:
As far as the Hz is concerned, I think it does not matter. What comes out from the FPGA and resides inside the SRAM is the same, no matter what vertical Hz I choose to display it in. I choose 60Hz since I think it is supported by almost all screens. If you think the interlacing will get worse in PAL mode by changing vertical Hz, It is an interesting thought, one that I will test today actually Thankfully it is very easy to change. |
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02 July 2015, 21:13 | #18 |
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The horizontal update frequency is around 15Khz for these old computers. I do not think you can use the RBG input on your not so old TV due to lack of support. But I am not sure, if you try it out, please send a memo
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02 July 2015, 21:22 | #19 | |
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Quote:
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02 July 2015, 21:24 | #20 |
Glastonbridge Software
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is it possible to configure it not to stretch the image sideways to widescreen width? or does it work with non-widescreen monitors?
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