HDMI for the Adam

Repairing, upgrading and maintaining the Miscellaneous Adam Hardware
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Milli
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HDMI for the Adam

Post by Milli » Sun Jul 21, 2019 8:11 pm

I thought of this a few days ago. Take a raspberry pi. Write a tms9928 emulator in c, python or other language. Hook up the data pins on the Adams vdp to the gpio pins of the pi as input only. Then have the emulator read what is being sent to the vdp and emulate it on the pi, displaying it on the hdmi screen. I know I am simplifying things but the vdp is simple - the Adam sends a command and then data. The pi will only process the data for display, it won’t send anything back to the Adam - let the internal vdp do that.

This is not to be confused with the F18 or others - this is a totally different take on upgrading the Adam - while the pi is there it could also be used for other things - drive emulation - serial port etc. what do you think?
Milli

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Wmaalouli
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Re: HDMI for the Adam

Post by Wmaalouli » Sun Jul 21, 2019 11:33 pm

Should work in theory. Writing that emulator is not for the faint-hearted however :)

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Milli
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Re: HDMI for the Adam

Post by Milli » Mon Jul 22, 2019 7:51 am

Wmaalouli wrote:
Sun Jul 21, 2019 11:33 pm
Should work in theory. Writing that emulator is not for the faint-hearted however :)
Actually it may be - using the source code in the ADAMem- it already emulates the vdp
Milli

lotonah
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Re: HDMI for the Adam

Post by lotonah » Tue Jul 23, 2019 5:22 am

Sounds like a worthy project.

I've always thought that the RPi is a perfect companion for most classic computers. If the software was there, it could be a wifi modem, SD card reader, USB printer interface, USB keyboard interface, joystick interface... and so on. 80 columns? Sure, why not. It could take the Adam into a whole new direction.

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G8rDuc
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Re: HDMI for the Adam

Post by G8rDuc » Wed Jul 31, 2019 8:01 am

Would it be simpler just to use a SCART cable to HDMI?
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ADAM, Amiga 2000, C64
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Milli
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Re: HDMI for the Adam

Post by Milli » Thu Aug 01, 2019 8:35 am

G8rDuc wrote:
Wed Jul 31, 2019 8:01 am
Would it be simpler just to use a SCART cable to HDMI?
The adam doesn't have Scart output - just composite and RF. I have tried the upscalers and they do not work very well.
Milli

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