Dragon Beta GitHub

For the discussion of all hardware related topics.
dublevay
Posts: 173
Joined: Wed Jan 23, 2019 3:41 pm

Re: Dragon Beta GitHub

Post by dublevay »

You can find the mouse resistors on the schematic fairly easily. Stuff from Phill you'll need to charm from Phill! ;-) You'll also need the ROM images, of which one is updated by Phill, and it's not worth using the original (the BOOT ROM). I didn't want to put stuff like that onto the GitHub. Though could be stored on here quite happily I reckon.

Do we know your build buddy?
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robcfg
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Re: Dragon Beta GitHub

Post by robcfg »

Indeed, and he's here in the forum under the name of @retrocant :mrgreen:
dublevay
Posts: 173
Joined: Wed Jan 23, 2019 3:41 pm

Re: Dragon Beta GitHub

Post by dublevay »

Ah yes, I know him, he's a friend on Facebook.
dublevay
Posts: 173
Joined: Wed Jan 23, 2019 3:41 pm

Re: Dragon Beta GitHub

Post by dublevay »

Latest video of the Dragon Beta graphics demo, now that I've fixed the glitches I was experiencing. https://youtu.be/fl_m6Mn0m_Q
dublevay
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Re: Dragon Beta GitHub

Post by dublevay »

Any progress on your Beta boards guys?
retrocant
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Joined: Sat Jul 24, 2021 2:02 pm

Re: Dragon Beta GitHub

Post by retrocant »

Greetings, I am posting to report the progress I am making in the assembly of dragon beta, first of all to thank robcfg due to the madness of being able to assemble this project and in a collaborative way helping us to be able to carry out a final assembly of this project.

attached photo.

Image
dublevay
Posts: 173
Joined: Wed Jan 23, 2019 3:41 pm

Re: Dragon Beta GitHub

Post by dublevay »

Brilliant! I look forward to seeing it working. Unless Richard, Mike and Tony get a move on, yours will be the third repro board to be working! :D
retrocant
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Re: Dragon Beta GitHub

Post by retrocant »

I have doubts about some resistors that I don't know what the value is; They were the following ones:

R25,R31,R28,R24,R21,R29,R30,R22,R23,R26,R27 and R20 since in KICAD there are not the values of certain resistors.

Thanks.
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retrocant
Posts: 16
Joined: Sat Jul 24, 2021 2:02 pm

Re: Dragon Beta GitHub

Post by retrocant »

I have doubts about some resistors that I don't know what the value is; They were the following ones:

R25,R31,R28,R24,R21,R29,R30,R22,R23,R26,R27 and R20 since in KICAD there are not the values of certain resistors.

Thanks.
sixxie
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Re: Dragon Beta GitHub

Post by sixxie »

retrocant wrote: Sun Feb 26, 2023 9:05 am I have doubts about some resistors that I don't know what the value is; They were the following ones:

R25,R31,R28,R24,R21,R29,R30,R22,R23,R26,R27 and R20 since in KICAD there are not the values of certain resistors.

Thanks.
You can examine each in turn with 'E', or go to the bulk symbol editor (small spreadsheet icon) and see each are 15Ω,
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