NTSC MiniMig

[Crom00]

Don't have a Mini-MIG to test on US LCD/CRT monitors yet. Will advise further once I get ours finished and can execute some tests.

Anyone out there with the expertise to revise the current Mini-MIG spec to a NTSC/PAL switchable version?

[Crom00]

?

Is anyone actually interested in working towards 60Hz capability? Actually getting into the verilog, Xilinx tools, boards and actually making it work?
quote]

Yes would like to see this done, the world does not live on PAL 50hz alone. I'm getting my Mini-Mig next week from australia and will test it on American market LCD and CRT monitors.

[Crom00]

For anyone that doesn't have a commodore or 3rd party montior with a 31/15.17 klhz and 50 hz capability you will have a hard time getting Minimig to work.

Most all modern LCD/VGA displays (even multisystem units) display VGA signals starting at 60hz.

I went to local shops in a Northeastern USA major city that caters to european immigrant popluation. They specialize in multisystem tv's/ LCD's I tried the MiniMIG on 4 multi-system LCD's the supposedly supported 50hz and they did not work. The shopkeepers were actually pretty amazed at the MiniMIG and it's homebrew origins.

So I imagine users worldwide will have these problems unless they have an aging Commodore display to use with it.

The whole spirit of MiniMIG is Amiga redone for the 21st century. IF we need to use ancient 50hz monitors for Minimig well that's not going to cut it.

SO this is not really an NTSC issue, it's more of a modern monitor issue. 60z insures compatility with modern LCD's and crt's.

Don't we want to have this on our HDTV's next to the xbox, Wii and Ps3? That's my plan.

So who can execute the changes? Who is willing to do so?
and what's it gonna cost?

[Crom00]

So far I tested this on:

2 Pyle 20" lcd multisystem
1 Toshiba 15" multisystem
1 sony 32" multisytesm
1 sampo 17" multisystem
Dell 1901 fp

Hanns g 22" (this one was hopefull becuase it does all major games consoles in 480i unsing the dvi port)

I tried an old Commocore 2002, but I was using a HD15 to db9 cable with a gender changer. Believe this was a cable issue.

Reason being that  I tried to use a 23 pin to 9 pin male with a 9pin to VGA hd15 connector to display super 72 and VGA modes on my a1200 connected to a dell and hassg monitor with and no luck.

Trying to source a 50hz VGA monitor in the usa. Unless I get a 1950, 1960, 0r 1942, I can't test this further.
This unit it the same unite WhiteB just assembled and posted on YouTube.

He luckily had a compabile VGA monitor he have bought previously to use with a 50hz scan doubler on his A4000.

This is exactly the sort of thing I wanted to test before I commit thousands of $$$ to manufacture these.

A 60hz version makes so much more sense now.

[Crom00]

Nope. I have a +5 volt, 2amp unit I purchased specifically for this.

If the unit was fried would it even power up? Would there be a burning smell?

[Crom00]

Yep that was beore I had the Mini-MIg in my hands. Once you adivsed the power had to be 5 volts I got a 5v version from Radio Shack.

That 4,4.5,6.8 thingy is still in the box.

Have left the 5 votl power on for a few minutes all lights were on no problems.

[Crom00]

I have a multimiter, that's about as complex as I've got.

[Crom00]

Also for production, they're going to need 50hz VGA mointors for debug and testing. A pain in the but I'm sure they'll charge accordingly for. LOL!

[Crom00]

Is it possible to fab or mod a minimig with socketed crystal connector and ship the unit with 2 crystals, one for pal and once for NTSC?

The user would then have to laod the correct FPGA data at startup?

Would like to ship a board that can do both ntsc. pal versions.

[Crom00]

You're going to make and ship boards??

PAL version with ECS support (for 60Hz) would be good enough for most people, but that will require verilog changes and there seems to be no one with a MiniMig board interested in doing any serious work (Except Dennis and Tobias).

Check the thread on this subject, its out there.

Yes I can get stuff manufactured but the verilog thing is over my head unless I teach myself how ot program. Now if you need a pacakge designed,or production done I can help there.