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Fall update 2020

There has been close to zero R&D last few months, and it will unfortunately continue like that until sometime in December.  I started a new job this summer, and right now I’m in the middle of moving out of our apartment in the city centre  to a proper house with garden on the outside.  I will miss having coffee shops and stores minutes away by foot, but look forward to having a dedicated office/lab, garage, garden etc.  As if that wasn’t enough, I’m also getting my drivers license and a car, which is kind of a thorough process here in Norway.  Anyway, I expect to be done with all of this in December.

Store closing 1 – 15 October

I’m away on business a couple of weeks, and instead of getting a backlog of unshipped orders I will simply close the online store the first weeks of October.  The store will likely also close for a week or two in November.

MiSTer?

I’ve gotten a few emails about JVS-PAC 2 not working with MiSTer, and I can confirm it is indeed problematic at this point.  I got a MiSTer setup myself, and I’m positive that it will work some time in the future.  

A possible fix/workaround will be to implement the planned gamepad mode for the JVS-PAC 2, but given all the problem-reports I’ve been reading for a lot of different devices this is just a theory.  A good test to check if a setup is working properly is to load up a 2 player 6 button game, enter test mode and press all buttons for all players at the same time, while move the joysticks around.  I expect this simple test would reveal issues with a lot of MiSTer setups..

From my perspective, the problem is mostly with the input model of MiSTer, they could learn a couple of lessons form the MAME project..

Stock levels

Except the A1 scaler, no stock shortage in sight for the foreseeable future.  I’ve initiated another run of the A1 scalers, but may run out of stock until it’s completed.

 

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Summer Update 2020

The tri-sync helpers are finally back in stock.  I’ll be the first to admit that the utility of the Tri-Sync Helper may not have been communicated very clearly, and may be a source of confusion unless you already ran into problems and have spent some time researching solutions.  I’ll try to update the website to make it easier to understand if you need one or not.

For now, it’s an add-on to the Jammafier to that provides a more standard video signal from Arcade boards – this is useful for Tri-Sync CRT owners and people using the OSSC upscaler.

The arrival of the manufactured Tri-Sync Helpers (TSH), marks a couple of important milestones:

  • All products are in stock at the same time
  • All products are professionally manufactured

 It may seem trivial to keep stuff in stock, but for the type of niche products I sell it’s actually a little tricky for a few reasons

  • Parts sourcing, minimum order quantity(MOQ), and time when doing manual assembly
  • MOQ for having things manufactured
  • Low and sporadic sales volume

Hopefully, having everything in stock will give me better data about actual demand so I can plan accordingly, I have already initiated another production run of the Jammafiers.

The Corona/Covid situation seems to have calmed down a bit in this part of the world, and I’m happy to report that FedEx shipping is back to it’s snappy normal service.

To all existing and new customers, thanks for your support and have a great summer!

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Jammafiers back in stock!

They actually came back in stock a week ago, but I’ve been too busy to actually write about it. 

New in this version is that you can enable/disable 5V for the Tri-Sync Helper with a switch instead of a solder jumper.  There are a few other differences as well, like the type of OLED screen used – but nothing that affects the use or performance of the device.

The reason this article is a bit late is that the response has been incredible, in a week I have shipped over 50 of these – I was hoping for maybe 20.  It got to the point where I ran out of FedEx shipping supplies, and a few orders got delayed a couple of days.

Another thing I was not prepared for was the demand for Tri-Sync Helpers, I had 18 in stock prepared – but they went away in a day.  The Tri-Sync Helper is the only product still made manually, and to make matters worse – it actually has a quite a few components on it despite it’s size.  To resolve this shortage, I’m currently investigating if they can be professionally assembled.  It may be a little tricky as the pins of the VGA connector is pretty close to other components – no problem if done by hand, but may pose an issue for automatic assembly.  I will know more in a week or so.  If you’re interested in a Tri-Sync Helper, please drop me a message via the contacts page and I will add your name to a notify list so you will be notified by email once they are available.

Lastly, DO CHECK OUT the bundle promotion consisting of a Jammafier & Retro Scaler A1 – it’s in my opinion the perfect combo for VGA only JVS cabs like the Naomi Universal.

 

 

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JVS-PAC 2 back in stock!

JVS-PAC 2’s are now back in stock – assembly of the OLED screens went a lot quicker on this batch as I had a jig to hold the OLED’s in place while soldering.

Get yours while supplies last 🙂

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COVID-19/Coronavirus Update

This is a post about availability of the Jammafier and the JVS-PAC 2, but not one I expected to write.

Because of the tragic virus outbreak in China, both JVS-PAC 2 and Jammafier production is delayed.  As the situation is still unfolding and far from over, speculation on my part is moot.  One could easily get the impression from the news that it would be back to business as usual after the extended holiday ended 10th of February – this is not the case.  Latest update I have from the assembly house I use is that they hope to get to business around February 25th.

In addition to PCB manufacture and assembly, the OLED screens and the protective acrylics I use is also sourced from China.

My thoughts go out to the people affected by this virus, which is not me and most likely not you.

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Winter update

Another production run of Jammafiers is in the works.   Thanks to all who followed my request and sent me a message expressing interest.  I have completed the layout for a new revision and I’m waiting for the prototype PCB’s.  The only real change for users is a toggle switch to enable/disable 5V for the Tri-Sync Helper, no longer a need to solder/de-solder.  When it comes to production, this revision will have the screen attached via an FPC connector – which will make it look a bit more ‘pro’, and it’s one less thing to solder by hand.

JVS-PAC 2 stock is getting really low.  Demand has been also been low lately, with only 1 unit shipped out in December.  Nevertheless, I’ve initiated another production run of these and expect them to be ready within a couple of months.

The release of the Scaler went pretty smooth with no big surprises, although I have a suspicion that something is up with the bypass feature.  I have conflicting reports on analog bypass on Atomiswave, so will investigate this to see if there are any issues.

If you bought the Scaler and like it, please help ‘spread the word’, it’s a very niche product and a success report with a photograph means helps me more than you may think!  If you have used the Scaler with a system not listed on the tested sources page, drop me a line with your preferred name/nick for credit and I will add it.  

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The Retro Scaler A1 is here

Just before Christmas I managed to fix a few outstanding issues, and after a bit of hesitation decided that enough-is-enough – time to get the scaler out. 

It is by far the most complex thing I’ve ever designed, and that took the longest time to finish.  When making something like this, one thing is to have a mostly working prototype on your desk, but something entirely different to have a product that you can charge money for with a clear conscience.  Another factor is that the final part, making something usable by just pressing a couple of buttons is not exactly exciting – it often feels like real work.

Looking back, the idea started in 2011 when I ordered a sample of the TVP7002, the same ADC that ended up being used in the OSSC.  I had no idea how to build something like this but figured it was a place to start.  I needed a scaler for my Naomi Universal Cabinet that is 31k only, I had an XRGB-2 that was great – but it has a bit of a pain to source it, and not exactly cheap.

First PCB- 2015

I decided to not use the TVP7002, as it was announced end-of-life from Texas Instruments, I didn’t want to design something that I couldn’t source parts for in the future so decided to go with Analog Devices AD9984a.  This is a newer version of the ad9983a used in the xrgb3, so I figured it was a good choice even if it cost a bit more than the TVP7002.  I built a prototyping board in January 2015 – I guess that’s the real start of this project.  I knew I had to use an FPGA but had no idea how to program them.  I connected the digital output of the ADC directly to the input of a DAC, got lucky and got a picture and then I knew this was indeed something a mere mortal could do.

RPI zero based proto – 2016

Previous projects had been done using Eagle for PCB design, but now I was going ‘pro’ and using something proper, that of course also came with a proper learning curve. The first real prototype was done in October 2016 – the idea was to use a Raspberry Zero for the brains.  I managed to get a scaled picture, and thought I was pretty close – how wrong I was ?  

Rev 1.1 2017

This idea of using a Raspbery zero was ditched as there was no way to get them in quantity.  I decided to use STM32 instead, which also had a pretty steep learning curve.  In April 2017 I had the my STM32 prototype board connected to the scaler.

By June 2017, I had a prototype that started to look like what is now for sale.  Again, I thought I was almost there.

Rev 1.2 2017

November 2017, another prototype.  Which is about the same time I started working on the Jammafier as making the scaler would be too expensive and risky to finance by savings, so I needed something “easy” to fund it.  Along with something to fund this project, I had to get legit, i.e. doing this through a a business, so Irken Labs was born.  The Jammafier project took a bit more time and was more complex than anticipated so the scaler project was put on hold for some time.

Rev 1.3 2018

Prototype rev 1.3, is from May 2018.  The really big change is that Intel had released a less expensive FPGA, that had the same capabilities of the one I used in previous revisions – I managed to build a board that would accept them both.  This revision incorporates some lessons-learned when it comes to power delivery.  I also placed all components on one side of the PCB to decrease production cost.  If the firmware had been ready, this could likely have been a viable product – although later revisions incorporates some nice tricks not yet developed.

Rev 1.4 Late 2018

I experienced some noise and bad picture quality from some sources, so as an experiment I added a video amplifier with a low-pass filter in rev 1.4, the same used in the OSSC. The low-pass filter was a disappointment, it didn’t really clear up the noise and just added cost.  I identified the source of the noise as being a combination of a bad power supply, ‘bad luck’ using Moon-Patrol and Kung-Fu master as test sources – these boards have a terribly noisy video signal.

Rev 1.5  2019

Now we are getting serious, and this board went through 3 revisions mostly to optimize for production, culminating in Rev 1.5c which is the first public release.   A crucial change in 1.5 is the ability for the FPGA to analyze sync signals.

Manufacturing of the boards were completed in August this year, but the firmware was not yet ready and a lot of testing still to be done.  The game Batsugun was a real curve-ball, but it ended up making the firmware a lot more stable and compatible.  Sadly though, there is no hope for Batsugun.

That is the story of the scaler so far – it took a bit of time, but nice things often do 🙂   

This little write up would not be complete without a big thank you to RGB and rtw – thanks for invaluable technical discussions, encouragement, tips & testing.  Also, a big thanks to all the wonderful people over at arcade-projects.com.

 

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Fall update

Just a quick update, back from vacation and store re-opened.  For now, it’s only the JVS-PAC 2 that is in stock.

I’ve fiddled a bit with the shipping, and it should now be possible to check out how much it will be without making an account, checking out etc.  Have in mind that this is FedEx International Priority, shipping times are generally only a couple of days most places on the planet.

More JAMMAFIERS?

Thanks to all for sending me messages asking about availability.  There will be more Jammafiers made, but as all funds (and time) are tied up in the Scaler project, that one has to happen first.  If all goes well, I think late 2019 or more realistically early 2020 will be when Jammafiers are back in stock.  I don’t think there will be any major changes to the design, just a couple of tweaks to make it more manufacturing friendly.

Speaking of the Scaler. when I got back from my vacation there was a heavy box with aluminium enclosures waiting, so things are getting seriously close now 🙂