MiSTer FPGA Forum

emiliom

rezendes wrote: ↑Fri Sep 08, 2023 3:57 am
Where did you upload the BOM to? I had to go back and find your old post on like page 2 or 3 to see the attachment...

Same post. I added an edit at the end and changed the attachment to v3.

emiliom

Thank you LeeW. @emiliom Emiliom you may need to adjust your BOM to reflect this, I think this is my problem, the 04 is the correct part and the 07 does not work in it's place. Also the pin header with the super long pins should ideally have a different option. I've uploaded a new BOM with the change to U1 and also separated out LED1 and added a n...

emiliom

When I designed the Multisystem enclosure, the holes for the three LED's are actually designed to use short sections of 1.75mm 3D printing filament. If you use a transmissive / translusive material or even white PLA you can get a nice low cost light pipe effect. You can also flame finish the ends of the filament to make a slight dome, it looks nic...

emiliom

LeeW wrote: ↑Thu Sep 07, 2023 5:58 pm
I just now re-checked the specs on my LEDs on digikey and it looks like my red is 39.75mcd, yellow is 42.75mcd, but the green is only 20mcd.

What's the viewing angle on your green LED?

LeeW wrote: ↑Thu Sep 07, 2023 5:58 pm
Could it be that there's some 3D print stringing or something that is partially blocking the hole?

No, I even cleaned it out with a pin to make sure.

emiliom

my understanding is that the 07 is a "library reference" which is a reference to some arbitrary parts library and not an accurate description. The LibRef field for the the vast majority of the parts seems to be a description of the part, apart from BC856AL which itself matches a part number but not the comment so generic series name? In ...

emiliom

So I noticed something a little odd. I can't see LED1 (green) unless I look directly over the top of the case. Initially I thought I'd messed up as the LED I'd selected only turned out to be 15mcd, so I replaced it with a 100mcd green LED, but I still can't see it unless I look directly over the top of the case. Looking down the hole it doesn't see...

emiliom

I just got my official Multisystem 3D printed case in the mail and sadly they forgot to include the bolts+nuts for the internal fan :( Here’s my results after a quick trip to the hardware store for 4xM3 20mm flathead machine screws and 4xM3 Nuts… Did you not just get 4 short screws included in the kit to fit the fan? That's what I got. However I r...

emiliom

Yeah in addition, if you are using real analog output, most of the video settings do nothing. They are there to tweak HDMI/vga_scaler output. Definitely a core I wish had CRT vertical and horizontal adjustments like some of Jotego's arcade cores! Yeah, I didn't notice that at first. Then I started reading the comments properly instead of skimming ...

emiliom

So yes it all seems to be normal except that in the MiSTer I have this offset upwards. This is actually how it is in PAL on real hardware. And MiSTer displays 1:1 Amiga image over analogue. Most micros had borders but the image was more or less centered, Amiga is an a exception. Funny thing is I don't remember there being such a big black area at ...

emiliom

Additionally, over HDMI (and I know this is not what you’re asking about ;) you can apply 5× scaling, and we do it on a per-game basis in AmigaVision — this also covers why there is a black area at the bottom, using Gods as one of the examples: That's very interesting. Sounds like it must have been a lot of work as well given you went through the ...

emiliom

Now that I think of it, when first using Amiga Forever I also had a smaller image area, in particular I'm thinking of Gods as I remember that one distinctly, but I 'fixed' that with an option to stretch to fill which is no doubt where I've been getting confused. If I change my options in Amiga Forever to preserve aspect ratio and use integer scalin...

emiliom

Thanks for the replies. I'll give those games a go and see what I get. It's been a long time since I used a real Amiga on an actual CRT monitor so I forget exactly how it used to look. I guess I was fooled a bit by Amiga Forever which I've been using for a while and blows everything up to full screen.

emiliom

I just finished building a MiSTer Multisystem about a week ago and now I'm trying to understand how the MiSTer system works and how to get everything running correctly. With the Amiga core, when I run the core and Workbench screen comes up it completely fills the screen. When I 'insert' a game disc, the output shrinks down. I would say it's 3/4 the...

emiliom

I found this to be quite good: https://www.amazon.co.uk/gp/product/B07XDCRLR6/ I also used a bit of IPA from a dropper bottle and a brush just to clean up small areas where I was doing individual bits of de-soldering / re-soldering. I was looking at that flux remover but the reviews suggest that it still leaves a sticky residue and it's also fairl...

emiliom

Ok, so I finally managed to work it out. I expected the core to just 'run', but there's a little more you have to do. Just to get up and running you have to do the following: get the latest version of the '.MMB' file copy it to the "games/BBC Micro" folder rename the .MMB file to BOOT.VHD reboot your MiSTer Now you should be able to selec...

emiliom

Sorry, noob question I'm sure, but when I run the BBC Core I'm just stuck at the prompt that says: Card? I can't seem to do anything at this point. I looked at the readme on github and can't see what to do. First, I'm not sure what it's asking for (sd card?), and second none of my keyboard keys seem to work. I'm sure I'm missing something obvious. ...

emiliom

I used a lot of 99.9% IPA on the boards to clean them off, along with cloths and a toothbrush. I've removed as much as I could, but I may look to see if there's something else that could help remove the last remnants on the board. Any suggestions? I found this to be quite good: https://www.amazon.co.uk/gp/product/B07XDCRLR6/ I also used a bit of I...

emiliom

The fan is very loud and appears to be a 30mm fan so the smallest Noctua fan won't fit... Also if the screws are tightened the fan seems to be in contact with the enclosure while running. Will probably be running this fan-less. I assume you mean the fan is sort of rattling because it's in contact? I ended up swapping out my 16mm screws with 20mm s...

emiliom

rezendes wrote: ↑Wed Aug 30, 2023 7:19 pm
Nice! Waiting for my official case to come from the UK to the me in the states.

It might take a couple of weeks. I seem to remember it taking a couple of weeks when I ordered mine.

emiliom

Done! :P MMS_Case_Complete_Rear.JPG MMS_Case_Complete_Top_1.JPG Just for information, a 20cm ethernet cable is fine. I found them easier without bulky connectors because there seemed to be more of them about than 15cm cables. I think longer than a 15cm USB cable will be tricky to fit in the case unless it's very flexible. Also I notice that with th...

emiliom

MMS_Working.JPG Everything seems to be working ok now - HDMI, VGA, USB, Ethernet, Audio, fan - all good. I can't check the SCART or SNAC connector at the moment but I checked all the pins for continuity and shorts and all seems well. Ran the memtest for a while and got 141MHz. MMS_Case_half_done.JPG The case is proving a slight pain. The front 2 b...

emiliom

Finally found the short this afternoon! Ah the relief... :lol: So, the good news is my short on pin 2 is gone! The bad news is the short on VBUS remains. :( Ah well, I was never that hopeful that I’d get them both on the same connector. I did have an idea though. I’m thinking before trying to remove another connector, I should just try and desolder...

emiliom

Hooray!!! Praise the Lord!!! After 2 days I finally got that bleedin Ethernet connector off! :D In the end I decided to try the heated desoldering pump. It was only £30 and it takes up no space on my desk as I can put it away in a drawer. I’m sure it wasn’t as good as a gun would be but it does a good job of cleaning out the central pins. The shell...

emiliom

DeKay wrote: ↑Mon Aug 28, 2023 11:23 pm
Aluminum foil works really well too if in a spot where you can press it around something to keep it in place.

I didn’t think of that - that’s actually a really good idea. I’ll try that on my next test.

emiliom

Kapton tape is also very useful: you tape around the part you want to desolder in order to reduce the heat on the surrounding components while you move the tip. Yes as DeKay said I did try that, but things got a bit melty. My technique needs improving. It wasn’t branded Kapon though. I see that’s rated up to 280C. The tape I got was rated up to 26...

emiliom

JP9 pin 2 is USB1_D_N and only goes to JP9, J20, and the FE2.1. There aren't a lot of places for a short to happen if you have carefully inspected FE2.1 because a short around J20 would be obvious. That seems to leave the potential problem at J9. So this is my guess as to what is going on (apologies if this is your line of thinking already). That'...

emiliom

Would you (or anyone) have any tips on removing the Ethernet connector? Obviously I'm not the most experienced haha, but I think the braid is good to remove most of the excess and then a desoldering pump with a heat resistant tip would help as it can be directly placed on the soldering iron tip briefly, so the solder doesn't have as much chance to...

emiliom

That had occurred to me. I wondered if I put too much solder in and one or more pins had bridged where I couldn’t see them. I couldn’t see any obvious shorts with a magnifying glass and then I even checked with a microscope (cheap but does the job) and it really doesn’t look like there are any shorts where solder joints are visible on either side ...

emiliom

Note that the shells of the USB connectors are grounded so perhaps the problem is creeping in there? Use an eye loupe or magnifying glass with lots of bright light. There is a problem there. You need to find it. That had occurred to me. I wondered if I put too much solder in and one or more pins had bridged where I couldn’t see them. I couldn’t se...

emiliom

But I still seem to have no USB. I have continuity along the data lines between the USB ports and the FE2.1, but when the system is on I have zero volts at every connection on every USB port apart from JP11 where I get 1.25V and 3.3V on pins 2 & 3. I get continuity with GND on pins 1 & 4 for every USB port except JP11 which, if I'm reading...

MiSTer FPGA Forum

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Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

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Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

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Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

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Re: Amiga VGA Output Should it Fill The Screen?

Re: Amiga VGA Output Should it Fill The Screen?

Re: Amiga VGA Output Should it Fill The Screen?

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Amiga VGA Output Should it Fill The Screen?

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: BBC Core Can’t Get Past ‘Card?'

BBC Core Can’t Get Past ‘Card?'

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design

Re: Open Source release of MiSTer Multisystem Console hardware all-in-one I/O design