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Please put me down for two. Thank you!

Ahhh, that makes a lot of sense, and explains what LK3 is for. I'd actually spotted that project by IanB but hadn't realized that it was a PS2-to-KART protocol converter

Hi all, I've just come into possession of a few sparingly-populated A3000 boards, two of which are missing IC2, the keyboard/mouse controller. I wonder if anybody here has made a modern replacement for this chip? It looks like it talks to the rest of the system via a two-wire asynchronous serial int...

Yes, the CPLD keeps track of where the stuffed bits need to be added/dropped and then the micro isn't clocked during the extra data bit so it is lost. On the transmit side the CPLD, being master, pauses the SPI clock while it sends an extra bit. To get this all to work, some logic is on the rising ...

The CPLD on my board does convert between SPI and econet by bitstuffing and unstuffing. On RX, it obtains byte sync by usng on the opening flags and the econet clock gets passed through to the SPI slave (USB microcontroller). The start/stop flags are used to create a /SS line. Very large econet fra...

This conversation gave me a bit of energy to pick up my own USB Econet project and get it a bit closer to working. It's still far far behind flynnjs's original one and gazzaD's Arduino Filestore , but the raw output side of it seems to be going now -- the microcontroller sends bytes to the CPLD, whi...

Nice work Liam!

A nice set of PRMs for RISC OS 2, to go with the RISC OS 3 PRMs living in my parents' attic back in New Zealand

The USB Econet dongle works. But there's been lack of enthusiasm to finish the host software. We have something mostly working on Linux+Windows but none of those involved would attempt anything on riscos. I could make dongles available to anyone willing to commit to doing something on the host soft...

Hi neighbour! Did you see our display at the Computer History Museum last weekend (for the Vintage Computer Festival)? I'm in Mountain View, and 8bitkick is in San Jose, I believe. There's a small but growing group of us with Beebs and Electrons over here in Norcal

Smaller (partial) surface mount 8-bit IDE podule. IMG_20180810_220808.jpg It fits vertically in an A30x0. IMG_20180810_220541_HDR.jpg Only one short that stopped it working first time, it was on the first resistor pack I fitted. (I still need to seriously improve my surface mount soldering skills. ...

So your Pi works fine plugged directly into your Model B, and doesn't work when plugged into either the Model B or Master via the GPIO extender cable? You've checked that it's connected the right way around, but get garbage instead of the "Acorn TUBE 6502" header via the cable. I assume it's this ca...

Looking in therefore, I think I see many in the retro computer world that appear to expend significant effort in bringing their Acorn environment into the modern age, or as Phillip phrased it, ‘ optimising their build pipeline ’, but then having got there, not really doing much more in the actual p...

A few pics from this event, on the FB group.

Being the one who originally suggested UPURSFS/HostFS, I should jump in here to confirm what MartinB just said! Standard UPURS is pretty bulletproof once you get your cable sorted out, and *UPLOAD will do most things you need, then *UPSSD and *UPDSD will let you upload entire disc images. So if you'...

If you can get UPURSFS (HostFS:UPURS) running well, it lets you run binaries directly off an attached PC, using the UPURS bit-banged 115k2 serial port.

Finally set mine up, and it works very nicely with my Master 128. Thanks Dave! Now I can run three computers at VCF West rather than two

Looks like it sold for £51! Way above what I was hoping for

CMcDougall wrote: ↑

Sat Jul 28, 2018 9:58 pm

atom econet card, 4 bids so far £13.50 +5pp....
https://www.ebay.co.uk/itm/Original-Iss ... 6016.l4276

Anyone else bidding on this? I'm very interested in it.

1920x1080 here!

I'd be very interested in one (HAT + cable, shipped to San Francisco). Really glad to see this project reaching this stage Thanks Dave!

I'm probably going to be switching this between machines, and mounting it behind a monitor, so can I have a 100cm cable please?

Me too!

The only problem is the Y/PA/PB signals are relatively low voltage swing and tri-level (with some redundancy). Figure 10 in the 6847 data sheet best explains this. In the FPGA I use the differential LVDS I/O cells rather than external comparators. Each of PA and PB uses a pair of LDVS I/O cells, wh...

hoglet wrote: ↑

Sat Jul 07, 2018 1:13 pm

And lo and behold....
P1030968.JPG
(this was on an Issue 4 Elk)

Nice work! Looking forward to building up a few of these so I can have more than one machine with a display at once

8bitkick wrote: ↑

Sun Jul 08, 2018 4:34 am

Until you get your MMC this might be useful. I just saw your post which prompted me to get in online...

Thank you! Yes, that'll be super useful! Are you bringing your Atom to VCF? There's a slight chance that mine might arrive in time...

What's you plan in terms of extensions? Not sure yet! AtoMMC2 seems like an excellent start. I like the look of your scan converter. Also, do you think your RGBtoHDMI hardware could be adapted to work here? I guess you would need comparators on the inputs...? I'm still figuring out how the whole Y/...

After staring at it on eBay for a couple of weeks, I finally cracked and bought the 200 euro Atom from backtoyourpast (pricey, but out of the Atoms I've seen whose owners will ship to the USA, it seemed bearable). So... I expect to be an Atom owner once it arrives in San Francisco

A couple of things got me thinking on various threads about what is not about for the Electron, a dredge of previous threads really. - With Daniel's freewifi for the serial port ... nowhere to plug it in on Electron ... and no serial port remakes - With Beebmasters Eco hubs .... dont think there wa...

This does sound interesting, would be fun to connect a virtual arc to a virtual beeb over a virtual network :) Indeed! Hoping to do exactly that, and maybe have it use an USB Econet adapter (either my half-finished one, or flynnjs's one) as a bridge onto a real Econet. Not sure if that would play w...

It looks like Circle (bare-metal Pi programming environment) has network, USB, and SD card drivers, plus some other possibly useful bits and pieces, so the approach of using the CPLD as a level shifter and doing everything in the Pi may actually work, as long as the drivers for current podules use s...