VideoNuLA boards

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RobC
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VideoNuLA boards

Postby RobC » Sun Aug 27, 2017 4:18 pm

I've made another batch of VideoNuLA boards. For anyone who has not heard of it yet, it replaces the original video ULA IC in the Beeb, Master, B+ or Compact to improve the graphics capabilities. It provides an analogue palette of 4096 colours, gives 16 proper colours in modes 2, adds new attribute modes and hardware support for smooth horizontal scrolling.

The development thread (including manual and support disk image) can be found here:
http://www.stardot.org.uk/forums/viewtopic.php?f=3&t=12150&start=420#p176865

Some demos (courtesy of simonm) showing off its capabilities can be seen here:
http://www.stardot.org.uk/forums/viewtopic.php?f=3&t=13545#p177181

The price is £52.50 including UK P&P. Overseas posting is usually £5 or so more. The package includes the board, fly lead, support ROM and 28-pin socket.

PM me or leave a reply in this thread if you are interested in buying some. I'll make another batch if there's enough demand :D

Cheers,

Rob

IMG_20170827_165622.jpg

aotta
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Re: VideoNuLA boards

Postby aotta » Mon Aug 28, 2017 2:55 pm

I'd like one! i can't PM you (it seems i've not enough posts to use private message :? )
I need shipping to Italy, hoping the cost will be around 5 pounds... please write you to me by PM for confirming availability, costs and payments mode
Thank you and again my compliments for your project!

RobC
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Re: VideoNuLA boards

Postby RobC » Mon Aug 28, 2017 3:46 pm

aotta wrote: please write you to me by PM

PM sent.

benj
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Re: VideoNuLA boards

Postby benj » Tue Sep 05, 2017 1:18 pm

I'm definitely interested in one if you do another batch Rob.

Ben.

RobC
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Re: VideoNuLA boards

Postby RobC » Tue Sep 05, 2017 1:44 pm

I still have some left (all boxed up and ready to ship). I'll PM you.

RobC
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Re: VideoNuLA boards

Postby RobC » Fri Sep 15, 2017 11:11 am

I've made another small batch of VideoNuLA boards and have 5 available if anyone is interested.

If not, I may put them up on eBay over the weekend.

Cheers,

Rob

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1024MAK
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Re: VideoNuLA boards

Postby 1024MAK » Sat Sep 16, 2017 8:40 am

Hi Rob

If you have some VideoNuLA boards left, and don't have any new first time customers interested, then I would like another one please.

Mark
For a "Complete BBC Games Archive" visit www.bbcmicro.co.uk NOW!
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RobC
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Re: VideoNuLA boards

Postby RobC » Sat Sep 16, 2017 11:14 am

Thanks - posted this morning :)

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danielj
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Re: VideoNuLA boards

Postby danielj » Sat Sep 16, 2017 11:18 am

Rob, are you happy for me to point the Facebook group at this thread?

d.

RobC
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Re: VideoNuLA boards

Postby RobC » Sat Sep 16, 2017 11:20 am

danielj wrote:Rob, are you happy for me to point the Facebook group at this thread?

Yes - sure. I'm not on Facebook though so can't reply to questions etc.

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danielj
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Re: VideoNuLA boards

Postby danielj » Sat Sep 16, 2017 11:21 am

That's fine, they'll invariably register and ask here :D

RobC
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Re: VideoNuLA boards

Postby RobC » Sat Sep 16, 2017 11:27 am

Cheers :D

atcurtis
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Re: VideoNuLA boards

Postby atcurtis » Sat Sep 16, 2017 6:47 pm

I'm definitely interested in a board for my BBC Master. It'll need intl shipping to the USA.

RobC
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Re: VideoNuLA boards

Postby RobC » Sat Sep 16, 2017 8:21 pm

atcurtis wrote:I'm definitely interested in a board for my BBC Master. It'll need intl shipping to the USA.

PM sent.

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PitfallJones
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Re: VideoNuLA boards

Postby PitfallJones » Sun Sep 17, 2017 11:24 pm

Hi,

I just installed my one

Worked perfectly first time (and the Retrocentre amazing didn't get in the way so the lid came back down OK)

The first time I powered it up I got a blank screen and panicked until I realized the Scart cable was still unattached - ha! ha!

I was very lucky to have an issue 7 board with the original video chip socketted with a heat sink on top - it came out very easily in fact (easier than some ROMs I've tried to pull out in the past).

Being hardware challenged I found the instructions not explicit enough but found a layout of the motherboard with the chips numbered on 8BS:

http://www.8bs.com/inbbc.htm

The found the Instructions and photo in the pdf confusing as they didn't show the address line attachment to IC3 clearly (In fact the picture in the pdf showed what looked like a small chip - but in fact it was one of the largest - and you could have named it as the 6522 for confirmation...)
Anyway I wired it all up and held my breath and then plugged it in and power it up - and it worked!

Looks fantastic!

Here's some photos:

Original chip:
DSCF9443.JPG



Old chip Removed:
DSCF9446.JPG


New board installed (with Datacentre on roof):
DSCF9449.JPG


Result!
colours.jpg


PJ

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Arcadian
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Re: VideoNuLA boards

Postby Arcadian » Tue Sep 19, 2017 7:35 pm

Hi Rob, could I take one please? (assuming there are still some left!)
For a "Complete BBC Games Archive" visit www.bbcmicro.co.uk

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ABug Leicestershire (17-19 November 2017)

RobC
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Re: VideoNuLA boards

Postby RobC » Tue Sep 19, 2017 9:07 pm

Still have a couple left - I'll PM you.

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Arcadian
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Re: VideoNuLA boards

Postby Arcadian » Tue Sep 19, 2017 9:37 pm

Thanks. Can I take em both?
For a "Complete BBC Games Archive" visit www.bbcmicro.co.uk

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ABug Leicestershire (17-19 November 2017)

RobC
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Re: VideoNuLA boards

Postby RobC » Wed Sep 20, 2017 7:05 am

Yes - PM sent.

I've have still kept some back for those who expressed an interest earlier but have yet to respond to my PMs. So, if you contacted me previously and are still interested, please let me know.

Thanks,

Rob

dwarfmage
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Re: VideoNuLA boards

Postby dwarfmage » Thu Sep 21, 2017 5:51 am

Hi Rob. If you make any more up, I'd be interested in a couple of them. Cheers

RobC
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Re: VideoNuLA boards

Postby RobC » Thu Sep 21, 2017 7:39 am

dwarfmage wrote:Hi Rob. If you make any more up, I'd be interested in a couple of them. Cheers

PM sent.

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bakoulis
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Re: VideoNuLA boards

Postby bakoulis » Thu Oct 05, 2017 9:54 am

Hi Rob
I like your new hardware, but I prefer a portable (external) VNuLA for use for all of my BBCs.
I use already portable Matchbox Co and DataCentre for all of my BBCs and I can exchange the hardware between them.
I don't know if will be possible a portable version to the future.
:)
2xElectron, 3xBBC B, BBC Master.
2xAcorn A310, A420/1, 2xA3000, 2xA3010, A3020, A4000, A5000.
2xRISC PC, Acorn Pocket Book, Acorn Pocket Book II.

RobC
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Re: VideoNuLA boards

Postby RobC » Thu Oct 05, 2017 12:20 pm

bakoulis wrote:I like your new hardware, but I prefer a portable (external) VNuLA for use for all of my BBCs.

The same board works in all of the models (B, B+, Master & Compact) and I often swap the boards between machines when I'm testing them.

It's also possible that it'll work on the end of a ribbon cable - I keep meaning to try this out but haven't got around to making up the cable yet.

Unfortunately though, there isn't an existing socket on the Beeb that it could plug into as the required signals aren't brought out to any of the existing connectors. So, even if it does work, it would mean having a ribbon cable running from inside the machine to the outside world (a bit like the Master AIV SCSI cable).

If you wanted to swap the board between machines, you'd need a ribbon cable coming out of each machine or would be opening them up to swap the cable over (in which case you might as well just swap the board over).

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bakoulis
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Re: VideoNuLA boards

Postby bakoulis » Thu Oct 05, 2017 12:33 pm

Because of lack suitable port, the ribbon cable from ULA to outside of BBC is somehow a solution.
But with the rest modification at BBC, I am afraid this will can't works if the VNuLA isn't attached.
2xElectron, 3xBBC B, BBC Master.
2xAcorn A310, A420/1, 2xA3000, 2xA3010, A3020, A4000, A5000.
2xRISC PC, Acorn Pocket Book, Acorn Pocket Book II.

RobC
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Re: VideoNuLA boards

Postby RobC » Thu Oct 05, 2017 2:02 pm

If the ribbon cable approach were to work, I guess you could always plug the old ULA in while the VideoNuLA is being used by another machine.

However, you'd want it to be a robust solution if the ULAs were being changed regularly.

(I'm in the fortunate position of having a VideoNuLA fitted in each of the machines I use regularly so have tended to leave them in place.)

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1024MAK
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Re: VideoNuLA boards

Postby 1024MAK » Thu Oct 05, 2017 3:34 pm

ZIF (zero insertion force) socket?
Image :?:

Mark
For a "Complete BBC Games Archive" visit www.bbcmicro.co.uk NOW!
BeebWiki‬ - for answers to many questions...

RobC
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Re: VideoNuLA boards

Postby RobC » Thu Oct 05, 2017 4:16 pm

Yes - that's what I was thinking about.

Something built around a PCB mounted ZIF socket and a 28-way ribbon cable. Although I guess there comes a point where another NULA is more cost effective!

I'll have a look at building a ribbon cable to see if it works when mounted away from the motherboard.

crj
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Re: VideoNuLA boards

Postby crj » Thu Oct 05, 2017 4:35 pm

Looks like the overhang would interfere with the ZIF lever?

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danielj
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Re: VideoNuLA boards

Postby danielj » Thu Oct 05, 2017 4:44 pm

Given the price for a 28pin one of these, I think you're best off just getting some more NuLAs.... http://www.ebay.co.uk/itm/172803690952

d.

RobC
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Re: VideoNuLA boards

Postby RobC » Thu Oct 05, 2017 4:58 pm

crj wrote:Looks like the overhang would interfere with the ZIF lever?

Not ideal but it might be okay if used upside down - I'll try to dig out a ZIF socket to try it later.

danielj wrote:Given the price for a 28pin one of these, I think you're best off just getting some more NuLAs.... http://www.ebay.co.uk/itm/172803690952

Wow! I have a couple of those that I bought years ago but I don't remember paying anything like that for them :shock:


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