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RISKY MSX Cart - Rev 1 (Beta Release)

Home for the Terriblefire MSX clone

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arkadiusz.makarenko
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Re: RISKY MSX Cart - Rev 1 (Beta Release)

Post by arkadiusz.makarenko »

New PCB arrived
PXL_20250224_131725078.MP.jpg
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Re: RISKY MSX Cart - Rev 1 (Beta Release)

Post by arkadiusz.makarenko »

I have it working now.

It is time to calculate opamp operation.
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Re: RISKY MSX Cart - Rev 1 (Beta Release)

Post by arkadiusz.makarenko »

First try with opamp and few caps. It is step in right direction.
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Re: RISKY MSX Cart - Rev 1 (Beta Release)

Post by arkadiusz.makarenko »

Few small tweaks and I am really happy with the outcome.
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Re: RISKY MSX Cart - Rev 1 (Beta Release)

Post by PhilC »

arkadiusz.makarenko wrote: 24 Feb 2025 22:42 Few small tweaks and I am really happy with the outcome.
That music sounds so much better now, well done.
If it ain't broke, test it to Destruction.
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Re: RISKY MSX Cart - Rev 1 (Beta Release)

Post by arkadiusz.makarenko »

From what I can hear I don't have to worry about boosting bass on SCC circuit, but it looks like it would benefit from suppressing high frequencies.
On some PCB builds I can hear slight hiss when working with USB device.
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Re: RISKY MSX Cart - Rev 1 (Beta Release)

Post by arkadiusz.makarenko »

I have built whole batch of them. Not too bad, just I don't know If I want to do it too often.
PXL_20250301_151830184.jpg
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Re: RISKY MSX Cart - Rev 1 (Beta Release)

Post by arkadiusz.makarenko »

New firmware released. It fixes audio glitches and background noise which was annoying me on flashing pages
It was present only on some boards.Fixed by simply by always configuring DAC , not only for mapper that uses it.
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Re: RISKY MSX Cart - Rev 1 (Beta Release)

Post by PhilC »

Cool, will test out tomorrow with the new board :D
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Re: RISKY MSX Cart - Rev 1 (Beta Release)

Post by PhilC »

So far so good with V2.02. There was some noise as you'd said before I did the firmware update and that's gone now.

Testing still in progress but this is great, well done.
If it ain't broke, test it to Destruction.

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