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Author Topic: Second NatAmi MX board assembled!  (Read 11866 times)

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Offline Bamiga2002

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Re: Second NatAmi MX board assembled!
« Reply #44 from previous page: April 13, 2011, 08:40:19 PM »
There was a thorough discussion about the MMU and how it slows down the system on Natami forum (search there).  It left me the impression that it is not necessarily needed anywhere but debugging and that can be done within WinUAE. So bye bye MMU for me i won't miss you :) (then again i'm no programmer).

Great to see this project has had steady progress, been lurking 'round the forum quite often ;)
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Offline Nickman

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Re: Second NatAmi MX board assembled!
« Reply #45 on: April 13, 2011, 08:52:25 PM »
Quote from: Forcie;631200
@Hattig
A tiny CPLD handling I/O for floppy and joyports.

@Kesa
Yes. The image with the errors was made by a forum member, so I made a proper version after that. But the image with the errors happened to be posted on FB by mistake. :)


Yeah that was me :( i made the original pic in like 3 min just to have something that i could point to when i asked what was on the board.

I guess this will haunt me for ever thanks to the internet. :)
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Offline vidarh

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Re: Second NatAmi MX board assembled!
« Reply #46 on: April 13, 2011, 10:05:29 PM »
Quote from: Bamiga2002;631494
It left me the impression that it is not necessarily needed anywhere but debugging and that can be done within WinUAE.


It's not "needed" if you're happy with AmigaOS 3.x the way it is (vs. taking advantage of it as AROS gains at least basic memory protection) and/or is happy with not being able to seriously use it for software development without frequent reboots and/or using the 68060 daughterboard.

For a lot of users that's perfectly fine.

But it sucks in that it makes it a massive pain to use for software development without adding a quite significant expense of a 60860. If I'm going to be using UAE anyway it defeats a lot of the point of getting a Natami in the first place.

It doesn't suck enough that it'll prevent me from buying one, but it does limit my interest somewhat.
 

Offline Nickman

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Re: Second NatAmi MX board assembled!
« Reply #47 on: April 13, 2011, 10:43:05 PM »
Quote from: Nickman;631497
Yeah that was me :( i made the original pic in like 3 min just to have something that i could point to when i asked what was on the board.

I guess this will haunt me for ever thanks to the internet. :)

New version i'm not totaly ashamed of.

http://img535.imageshack.us/i/natamipinout.png/
« Last Edit: April 14, 2011, 06:44:07 PM by Nickman »
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Offline commodorejohn

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Re: Second NatAmi MX board assembled!
« Reply #48 on: April 13, 2011, 10:55:24 PM »
You know what'd be kinda fun? To install a NatAmi in the case of my dead Mac SE/30, that's what. I'd need to find a 9" SVGA monitor to scavenge from, though...
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Offline psxphill

Re: Second NatAmi MX board assembled!
« Reply #49 on: April 13, 2011, 10:59:27 PM »
Quote from: Forcie;631376
Current FPGA tech (that is, chips that are affordable enough to use in projects like this) does not really allow a MMU, because it would slow the CPU design down too much to be acceptable

As long as the address is in the translation cache then an mmu doesn't slow the cpu down. Unless you're really short on space in the fpga then it's just a choice of whether you want to support it or not.
 
IMO MMU is important enough that natami should support it.
 

Offline actung_bab

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Re: Second NatAmi MX board assembled!
« Reply #50 on: April 14, 2011, 12:08:17 AM »
Quote from: VingtTrois;631136
Yeah! Thanks Kesa.
that looks fantastic
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Offline Iggy

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Re: Second NatAmi MX board assembled!
« Reply #51 on: April 14, 2011, 12:42:38 AM »
Quote from: commodorejohn;631519
You know what'd be kinda fun? To install a NatAmi in the case of my dead Mac SE/30, that's what. I'd need to find a 9" SVGA monitor to scavenge from, though...

That is a very odd idea. While the Mac SE/30 was one of the better early Macs, its still only an Apple.
You don't see people going out of their way to recreate those machines.
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Offline commodorejohn

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Re: Second NatAmi MX board assembled!
« Reply #52 on: April 14, 2011, 12:49:00 AM »
Quote from: Iggy;631534
That is a very odd idea. While the Mac SE/30 was one of the better early Macs, its still only an Apple.
You don't see people going out of their way to recreate those machines.
Yes, well, I'm an odd person. And it's more that I really, really like the look of the Snow White-design Macs - it reminds me of the Amiga 500, but a little more restrained. Be cool as hell to put an Amiga in there :)
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Offline DLH

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Re: Second NatAmi MX board assembled!
« Reply #53 on: April 14, 2011, 12:52:40 AM »
RS-232, not RS-323 :)
 
Look nice.
 
DLH
 

Offline B00tDisk

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Re: Second NatAmi MX board assembled!
« Reply #54 on: April 14, 2011, 12:53:12 AM »
Quote from: Iggy;631534
That is a very odd idea. While the Mac SE/30 was one of the better early Macs, its still only an Apple.
You don't see people going out of their way to recreate those machines.


World's full of crazy people; I'm in the process of rebuilding (both software-wise and physically) a 333mhz IBM 390e Thinkpad.  Thing works just fine: there's no need to throw it away "just because".  I scavenged a wireless nic for it's internal mini-PCI cardslot instead of the modem that's currently there, and replaced the clunky old 24x CD-ROM with a DVD/CDRW that fits quite nicely. :)

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Offline Bamiga2002

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Re: Second NatAmi MX board assembled!
« Reply #55 on: April 14, 2011, 07:16:52 AM »
Here's one MMU thread from Natami forum

@vidarh
We'll let's see what comes of it, they could be thinking of some solution with the MMU.
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Offline Nickman

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Re: Second NatAmi MX board assembled!
« Reply #56 on: April 14, 2011, 06:40:13 PM »
Quote from: DLH;631536
RS-232, not RS-323 :)
 
Look nice.
 
DLH


DOH DOH DOH!! :P I give up.
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