English Amiga Board


Go Back   English Amiga Board > Main > Amiga scene

 
 
Thread Tools
Old 15 January 2020, 17:55   #61
thgill
Registered User

thgill's Avatar
 
Join Date: May 2008
Location: Mason, Ohio / USA
Age: 44
Posts: 389
I wouldn't mind seeing someone come out with a budget A500 or A600 FPGA accelerator based off the the 68020 CPU code in the Minimig core.
thgill is offline  
Old 15 January 2020, 18:46   #62
MartinW
Registered User

 
Join Date: Mar 2017
Location: Minehead / UK
Posts: 559
Quote:
Originally Posted by dreadnought View Post
Has anybody tried to display the Amiga core on a CRT TV?
Not a TV as such, but I had mine linked up to my Microvitec M1438 CRT before it died. Basically, just make up a pin adapter to go from the VGA out on the I/O board to the 23pin of the Amiga CRT (or Scart of the TV, or whatever).

It looked very nice until my CRT died. Actually, let's be fair, it looked identical to my 1200. Because it was identical to it.
MartinW is offline  
Old 15 January 2020, 19:48   #63
dreadnought
Registered User
 
Join Date: Dec 2019
Location: Ur, Atlantis
Posts: 333
Quote:
Originally Posted by MartinW View Post
Actually, let's be fair, it looked identical to my 1200. Because it was identical to it.
Ok thanks, for me this is a make or break issue (and I've heard that MiSTer + CRT can be problematic).
dreadnought is offline  
Old 15 January 2020, 20:07   #64
MartinW
Registered User

 
Join Date: Mar 2017
Location: Minehead / UK
Posts: 559
Well, I can only tell you how it was for me. I’ve not used it for months and months now. But at the end of the day the signals coming out of the 15pin socket on the I/o board are the raw I/O signals.
MartinW is offline  
Old 15 January 2020, 20:50   #65
MickGyver
Registered User

MickGyver's Avatar
 
Join Date: Oct 2008
Location: Finland
Posts: 556
Quote:
Originally Posted by dreadnought View Post
Ok thanks, for me this is a make or break issue (and I've heard that MiSTer + CRT can be problematic).
MiSTer + CRT shouldn't be problematic. I have tested several CRT TVs with both the IO board and using direct video (hdmi->vga->scart) and the picture is perfect. I have actually never seen such a crisp picture on a CRT before, no noise whatsoever for me.
MickGyver is offline  
Old 15 January 2020, 21:14   #66
dreadnought
Registered User
 
Join Date: Dec 2019
Location: Ur, Atlantis
Posts: 333
Quote:
Originally Posted by MickGyver View Post
MiSTer + CRT shouldn't be problematic.
It's more about specific cores than the board itself. This is just what I've read in scattered posts here and there over the years, even the Wiki does not have a definitive answer, but obviously it also changes over time as cores develop. Initially it wasn't all great because HDMI was Sorgelig's main aim and he even explicitly stated it few times before that CRT compatibility is a very low priority feature. Also, people saying "it looks great!" is not always an indicator of actual quality or accuracy

Glad to hear people with real Amiga experience can confirm it's good though. Guess I should buy the bloody thing finally, been putting it off for a long time now. And displaying emulated Amiga on a CRT properly is one of my last frontiers, still can't do it on a RapsberryPi for example (nearly there, but not quite).
dreadnought is offline  
Old 15 January 2020, 22:06   #67
MickGyver
Registered User

MickGyver's Avatar
 
Join Date: Oct 2008
Location: Finland
Posts: 556
Quote:
Originally Posted by dreadnought View Post
It's more about specific cores than the board itself. This is just what I've read in scattered posts here and there over the years, even the Wiki does not have a definitive answer, but obviously it also changes over time as cores develop. Initially it wasn't all great because HDMI was Sorgelig's main aim and he even explicitly stated it few times before that CRT compatibility is a very low priority feature.
Quite often the problems are due to people not knowing how to configure it properly (it's easy though). Some cores where the original hardware wasn't meant to be connected to CRT TVs will have issues of course.

Quote:
Also, people saying "it looks great!" is not always an indicator of actual quality or accuracy
Sure, if you don't trust others' opinions then you must try it yourself. All I can say is that I have a PERFECT picture on my CRT with the Minimig core, perfectly centered without any noise, 50Hz and 60Hz works in all cores I have tried. Some cores can show the picture a bit off center, like the Mega Drive core, but I have the same issue with my original Mega Drive, so I guess that means accuracy.

Quote:
Glad to hear people with real Amiga experience can confirm it's good though. Guess I should buy the bloody thing finally, been putting it off for a long time now. And displaying emulated Amiga on a CRT properly is one of my last frontiers, still can't do it on a RapsberryPi for example (nearly there, but not quite).
With the MiSTer you will have much less lag than using a Raspberry Pi, expecially when connected to a CRT. MiSTer now supports a very fast usb polling speed for USB controllers (1ms) so there's only ~2ms added lag compared to original hardware if using a CRT TV and USB controllers that support fast polling.
MickGyver is offline  
Old 16 January 2020, 01:27   #68
NovaCoder
Registered User
NovaCoder's Avatar
 
Join Date: Sep 2007
Location: Melbourne/Australia
Posts: 3,750
I guess if you brought yourself a new Amiga case and got one of Kippers new keyboards you could build yourself a pretty good 'new' A1200?

Probably the cheapest way to getting a 'new' A1200 these days..
NovaCoder is offline  
Old 16 January 2020, 01:40   #69
lesta_smsc
Registered User

lesta_smsc's Avatar
 
Join Date: Feb 2012
Location: United Kingdom
Posts: 2,157
Not completely related to this entirely but since discussion of CRT was made, most if not all the games I have ever played looked better using original consoles or emulation on a CRT in comparison to any upscaling/HDMI etc. The consoles/computers of this era were made for resolution on CRT in general (although some would support other formats at higher resolution eg Amiga in Workbench).
lesta_smsc is offline  
Old 16 January 2020, 12:46   #70
dreadnought
Registered User
 
Join Date: Dec 2019
Location: Ur, Atlantis
Posts: 333
Quote:
Originally Posted by MickGyver View Post
With the MiSTer you will have much less lag than using a Raspberry Pi, expecially when connected to a CRT. MiSTer now supports a very fast usb polling speed for USB controllers (1ms) so there's only ~2ms added lag compared to original hardware if using a CRT TV and USB controllers that support fast polling.
Sure, but RPi's lag is actually not as bad as people paint it sometime. Well, at least connected to a CRT, I guess if you use it with some laggy modern panel it can tip it into unplayable territory.
RPi also has some advantages like save states, easy collection managament etc. Still, it's so cheap it's easy to have both of these solutions.

Quote:
Originally Posted by lesta_smsc View Post
Not completely related to this entirely but since discussion of CRT was made, most if not all the games I have ever played looked better using original consoles or emulation on a CRT in comparison to any upscaling/HDMI etc. The consoles/computers of this era were made for resolution on CRT in general (although some would support other formats at higher resolution eg Amiga in Workbench).
Absolutely, but perhaps it's better not to open this can of worms
dreadnought is offline  
Old 16 January 2020, 20:52   #71
MickGyver
Registered User

MickGyver's Avatar
 
Join Date: Oct 2008
Location: Finland
Posts: 556
Quote:
Originally Posted by lesta_smsc View Post
Not completely related to this entirely but since discussion of CRT was made, most if not all the games I have ever played looked better using original consoles or emulation on a CRT in comparison to any upscaling/HDMI etc. The consoles/computers of this era were made for resolution on CRT in general (although some would support other formats at higher resolution eg Amiga in Workbench).
I agree! The MiSTer has quite a few filters etc. to tweak the scaling to your needs.

Quote:
Originally Posted by dreadnought View Post
Sure, but RPi's lag is actually not as bad as people paint it sometime. Well, at least connected to a CRT, I guess if you use it with some laggy modern panel it can tip it into unplayable territory.
RPi also has some advantages like save states, easy collection managament etc. Still, it's so cheap it's easy to have both of these solutions.
Yeah, it's not too bad, but still much more lag than a FPGA solution like the MiSTer. Might not be noticeable as lag per se, but games requiring fast reaction from the player will be harder. Save states is a plus yes, hopefully more cores on MiSTer will get save states also, for now only the GBA core has save states.
MickGyver is offline  
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Special MiSTer Amiga build MickGyver Hardware mods 23 04 May 2020 15:35
Getting TinyLauncher to work with the Minimig core for the MiSTer FPGA? BlockABoots New to Emulation or Amiga scene 2 24 September 2019 09:36
Amiga 600 FPGA (MiSTer) Conversion intric8 Amiga scene 10 16 July 2018 19:10
Loads of amiga stuff fs gotmashed MarketPlace 28 23 December 2006 18:17
Loads of amiga stuff 4 sale :) magnox MarketPlace 8 02 August 2005 11:49

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +2. The time now is 15:10.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Page generated in 0.08085 seconds with 16 queries