ReMPU A1200

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arkadiusz.makarenko
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Re: ReMPU A1200

Post by arkadiusz.makarenko » Fri Jun 19, 2020 8:13 pm

Basic stuff implemented.

Time to hook it up to logic analyser and check clock timings, signal, and check keyboard reset.
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arkadiusz.makarenko
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Re: ReMPU A1200

Post by arkadiusz.makarenko » Sat Jun 20, 2020 7:22 pm

What I see on logic analyser looks promising. Reset, capslock led and other bits and bobs doesn't work yet as they should, but is time to set up Amiga 1200 for tests :)

Arek
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arkadiusz.makarenko
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Re: ReMPU A1200

Post by arkadiusz.makarenko » Sun Jun 21, 2020 5:40 pm

Yup, it works ok.
Notes: 10 key buffor is not enough, as phantom keypresses appear when it overflows. I will change it to 32.
Debouncing works great, depressed buttons works great. No delays or issues on only internal clock.
Some keys are not mapped correctly.

Better than expected on first run.

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neilo40
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Re: ReMPU A1200

Post by neilo40 » Sun Jun 21, 2020 5:42 pm

Nice work!

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PhilC
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Re: ReMPU A1200

Post by PhilC » Sun Jun 21, 2020 7:18 pm

Nicely done
If it ain't broke, test it to Destruction.

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arkadiusz.makarenko
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Re: ReMPU A1200

Post by arkadiusz.makarenko » Mon Jun 22, 2020 6:28 pm

Firmware is more or less done.
All keys maped correctly now.
Debouncing routine working as expected, with posibility of changing amount of 1ms compare passes.
Handling ignore entries (in case button bounces)...
32 Keypresses... keyboard starts to get crazy after more or less 20 button presses anyway (could be due to too strict debouncing).
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arkadiusz.makarenko
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Re: ReMPU A1200

Post by arkadiusz.makarenko » Thu Jun 25, 2020 5:34 pm

I have ordered black pill which should give me USB HID option.
I need to learn Eagle...
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