If you owned Amiga in the age of 16-bit home computers, you might have chosen Amiga while gaming and some audio sampling due to its impressive video capabilities. In its heyday, Amiga produced broadcast-quality graphics that could even be seen in multiple TV shows in the late 1980s and early 1990s. It is fair to say that since the age of Guru Meditation, the television world has changed, and SD video signals will no longer be cut. With HDMI as the current connection standard, [c0pperdragon] can help you in the following ways here
Obtain the digital signal directly from the Denise chip of Amiga.
When I first thought about it, I might think of using FPGA, but the signal was brought to the expansion connector of Raspberry Pi Zero through the daughter board. Simply remove the DENISE display encoder chip, and then insert the long-pin processed DIP socket into the board to connect. Pi will start from
The project was originally created for BBC Micro with the goal of rendering a pixel-perfect representation of Amiga graphics on the HDMI output of the Pi. It should be noted that it can run on the original chipset Amigas, and only certain models with enhanced chipsets can run, so Amiga 600 owners seem at a loss. The required latency is very low, and it should have an advantage compared to some other solutions to the same problem.
, But it is not only suitable for large machines, it can also be used on more machines.
Well, FPGA is involved here. Caps with programmable Xilinx CPLDs can capture video signals and feed them into zeros, see
And vhdl source is here
In this particular case, the CPLD of the RGBtoHDMI project is not used. Only a few XORs and triggers are needed to prepare the signal to enter the Pi.
I really like the result.... :-P
Has anyone heard of the upgrade plan to support ECS and AGA plans?
It can work in ultra-high image quality, but cannot capture ECS video mode. The limitation is that the VGA frequency is 6 bits/pixel
I should know that I have written a lot of software, which is indeed the fact that Amiga is used for broadcasting.
There is a machine called QuesTech Cleo that can bend real-time pictures into various shapes in real time. Designing it involves some of the most extreme mathematical operations I have ever done. You can see its operation on almost all "pop charts" from 1990 to 2000.
I wrote a package called ShapeMaker to run on the Amiga, which allows the operator to drag the picture to any shape with the mouse, and then bind the shape's characteristics to the joystick axis. It can then be used to arrange effects sequences for live broadcast.
I did a laser maze project for the British TV show "K Factor", and every participant got an A500
Use genlock to reach the studio control room.
Amiga graphics can achieve perfect full-screen display and monitor shooting effects.
Do you have any literature or source code to see how it is done? I would love to see the mathematical principles of some of these machines/software
Thanks for the inside information.
When we get comments from people in the industry, this is the best Hackaday commentator who can provide us with professional opinions. Thanks for that!
Why is amiga not used by hackers? Why use gui etc. to use the whole system when possible?
Amiga OS is still with us, and there is an active community around it.
I am glad to see that this article uses my video on YouTube. But I think my spoken English is not good. For this, I apologize deeply. Yes, I am called Brostenen on YouTube, but to9xct is the name of my blog on BlogSpot.
Don't apologize for your English, as a person who can speak English, I am very flattered, and thank you for having learned my language, so I can understand you. (Although you may not just study English for me, I still appreciate it.)
Is this really pixel perfect? For me, the screen stretches vertically to 1080 pixels. What is the high-end ratio? 2×2, 3×3 or 4×4? Or does it depend on whether it is low resolution or high resolution, is it interlaced?
By adding optional buttons, you can enter the settings menu and make numerous adjustments.
However, if the amiga is running in low resolution mode, the standard setting is 4×4. For high-resolution mode (workbench), the pixels are scaled horizontally by 2 times. When in interlace mode, the vertical zoom is 2 times (fix it when blinking).
It is worth mentioning that RGBtoHDMI runs on raspee bare metal code without linux. You can use a 32MB SD card. Very clever design, probably the best 8-16 bit upconverter currently available. It already supports a large number of devices and supports all open source, so you can add support for new hardware and video modes.
Outstanding Work. More and more retro machines appear HDMI solutions, which makes me very happy ?
This is great! Does anyone know if there is something similar for the Atari 520 or 1040 STf model?
You can find all the information on the github page of the original project. :-)
I want mine! I want mine! I want my AGA!
So tell Sting!
You are very unlucky with this project. Due to PI limitations, this is technically impossible.
What are the limiting factors? Take a quick look. There should be enough GPIO. If you think there are various GPIO speed analysis, should there be enough space to support 28M pixel clock?
Waste of time... There are already many video signal converters
Yes, all ADCs that are running. Capture digital RGB to reconstruct the original signal 1:1
If you want to spend more than 7 times the price to buy a frame, please be my guest. I think you missed the point of this project. It was created to enable BBC Micro HDMI video output. It is possible to use modern monitors on these machines because the old monitors are too expensive and too expensive. Secondly, when creating this product, the cost will be greatly reduced, so everyone can have an upgrade program that does not flicker. Third, it is suitable for OCS Amiga, now it is suitable for OCS and ECS machines (minus a600), as well as the second version of the adapter. V2 has jumper options for OCS and ECS.
This means that using the standard/regular screen mode set in Workbench, Amiga500-Plus and possibly Amiga3000 can output HDMI. (When loaded for the first time after installation) All Amiga games work at a resolution that the adapter can reach.
I think this adapter is the best solution. If you need Amiga, do the following. (Or similar)
– Amiga500 / Amiga500-Plus.
-Only play games from the Golden Age of Amiga games (1988-1992).
– Use real floppy disks or Gotek drives.
-Or use the Tracker program to make music.
– And, if you really don’t use the highest screen mode.
If the list meets your needs for Amiga in the collection, then this adapter is what you need. Because you can use it with a 1080p or 4K TV, and a TV like this plus this adapter and the accompanying PI is usually cheaper in most cases than a frame monitor (then you still need a TV) or a real old CRT Monitor, you don't know when it will die or catch fire. Yes it is. If there is not enough space around you to provide good ventilation, an explosion may occur. In addition, you need to make sure that no dust will absorb moisture in the air, then short-circuit it and prepare the monitor for use in a recycling center.
Then say it again. If you want that kind of frame, spend 7 times more.
????
Is it possible to run filters and high-end output (such as the CRT style that comes with RetroPie)?
These are real game changers on the new TV.
If this is the case, this project has legs.
Can this be used in Amiga 1200 (standard high-resolution PAL mode) and 320×200 low-resolution mode? I bet it is easy to use the cap on the top of the Lisa chip to capture the RGB lines.
I understand that color mode/depth is the problem. But amiga 1200 does not support lower ECS/OCS depth; what if we force it to use these modes?
I would also like to know if there is such an RGBtoHDMI solution for the Amiga 1200-I went ahead and bought a RaspiZero and then realized that this mod is only available for 500/1000 models:(
Can it be done externally (through video output)?
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