Login
Username:

Password:

Remember me



Lost Password?

Register now!
Sections
Who's Online
61 user(s) are online (43 user(s) are browsing Forums)

Members: 0
Guests: 61

more...
Support us!
Recent OS4 Files
OS4Depot.net



(1) 2 »


Amiga Micro and DMA [Solved]
Just can't stay away
Joined:
2006/11/24 17:54
From Sanremo
Posts: 1808
Hi !

I' d like to know if i am the only one that have problems with the DMA and the micro..

It happens when i try to watch a DVD with DVPlayer..

i can watch a movie for about 10/15 minutes and then it freezes.. i have to make an hardware reset from the switch of the case not from the keyboard to reboot my machine..

i have tried different DVD-ROM and i have enabled the DMA ( UDMA 2 ) from the U-Boot options..

I am the only one ( so is my micro that is faulty ) or someone of you had same problem ?..

My config. is micro amiga one 512Mbram and Update 4th..

Thanks


Edited by orgin on 2006/12/23 9:19:14
Edited by nubechecorre on 2006/12/23 10:16:12
   Report Go to top

Re: Amiga Micro and DMA
Just can't stay away
Joined:
2006/11/24 18:52
From Gloucestershire, UK.
Posts: 1169
µA1-C, 512mb and Beta OS4 here, dvd's play fine for me, my dvd drive (NEC 3520A) is set for UDMA 2

_________________
Amiga user since 1985
AOS4, A-EON, IBrowse & Alinea Betatester

Ps. I hate the new amigans website. <shudder>
   Report Go to top

Re: Amiga Micro and DMA
Just can't stay away
Joined:
2006/11/24 17:54
From Sanremo
Posts: 1808
Is there a way to check if my DMA is not faulty ?

   Report Go to top

Re: Amiga Micro and DMA
Home away from home
Joined:
2006/11/26 21:45
From a story that hasn't been written yet
Posts: 3532
If you don't have problems with your HD (is DMA on?) destroying
files/data while copy operation from/to DVD/CD, than i would'nt
point to the DMA, of course you can always try watching the DVD
with DMA turned off

idetool -x youride.device your_unit_nr 63
e.g.
idetool -x sii0680ide.device 2 63

this sets your DVD to the fastest PIO mode, won't be saved
so at the next start it will be back to DMA), you can set it
back by hand with idetool -x sii0680ide.device 2 66

See if the DVD plays fine, but i doubt it

Wild guess:
Have you tried memtester to see if your mem is faulty?

Another wild guess:
Does it happen with all of your DVD's?
If not DVPlayer may choke on that specific DVD!?

_________________
If slaughterhouses had glass walls, everyone would be a vegetarian. ~ Sir Paul McCartney
-
Did everything just taste purple for a second? ~ Philip J. Fry
-
Ain't got no cash, ain't got no style, ladies vomit when I smile. ~ Dr.
   Report Go to top

Re: Amiga Micro and DMA
Just popping in
Joined:
2006/12/4 1:03
From Sweden
Posts: 124
@nubechecorre

NEC drives are very good and has been reported to
work well in AmigaOnes. I have one myself.

Btw I use a 80 wire cable for my DVD aswell as my harddrive.
What cables do you have?

   Report Go to top

Re: Amiga Micro and DMA
Quite a regular
Joined:
2006/11/27 22:17
From Israel
Posts: 932
Quote:
samwel wrote:
Btw I use a 80 wire cable for my DVD aswell as my harddrive.


They should be flat as well (as pointed by SG couple of times, round cables reduce the shielding ability of the passive wires, they probably look "geek"-ish but appear to be useles, myself was fooled once into buying a pair of these). Just cut the tube that holds them folded if you have the non-flat ones.

Jack

_________________
Resized Image
"the expression, 'atonal music,' is most unfortunate--it is on a par with calling flying 'the art of not falling,' or swimming 'the art of not drowning.'. A. Schoenberg
   Report Go to top

Re: Amiga Micro and DMA
Just can't stay away
Joined:
2006/11/24 17:54
From Sanremo
Posts: 1808
@all

I have no problem with the HD .. i also tried to watch DVD without DMA enabled but the frame rate isn't good..

I try a lot of DVD and the problem persist..

My DVD is an " XJ-HD166S " i can't see a name.. there is only this code.. it' s a standard dvd-rom for pc.. it's OEM

For the cable, it's a standard ide cable ..

Do you think that is the DVD-ROM ?..

I tried another DVD that was an LG but the amiga didn't recognize it..

   Report Go to top

Re: Amiga Micro and DMA
Quite a regular
Joined:
2006/11/27 22:17
From Israel
Posts: 932
@nubechecorre
Quote:
For the cable, it's a standard ide cable ..


Standard 40 or 80 wire one?(are the wires thin and dense or not?)

Jack

_________________
Resized Image
"the expression, 'atonal music,' is most unfortunate--it is on a par with calling flying 'the art of not falling,' or swimming 'the art of not drowning.'. A. Schoenberg
   Report Go to top

Re: Amiga Micro and DMA
Just can't stay away
Joined:
2006/11/24 17:54
From Sanremo
Posts: 1808
.. I have to open the case.. i' ll tell you tomorrow.. it's my holiday i don't work and i can chek it..

thanks to all for the hints..

   Report Go to top

Re: Amiga Micro and DMA
Not too shy to talk
Joined:
2006/11/29 1:00
Posts: 433
Hi nubechecorre,

I had the same problem with playing DVDs on my µA1 until I put a better heatsink and fan on the CPU.

I would stronly urge you to try improving the cooling to your CPU and see how much more stable OS4 becomes.

   Report Go to top

Re: Amiga Micro and DMA
Just popping in
Joined:
2006/12/2 9:16
Posts: 190
Hey PEB that is useful info, what fan did you replace it with?

_________________
The court case is like a thunderstorm after a long humid summer.
   Report Go to top

Re: Amiga Micro and DMA
Just can't stay away
Joined:
2006/11/24 17:54
From Sanremo
Posts: 1808
Yes, if you could tell me i will take the same one !

   Report Go to top

Re: Amiga Micro and DMA
Not too shy to talk
Joined:
2006/11/29 1:00
Posts: 433
@Mitch and nubechecorre

I got a zalman VF700-CU, but I would NOT recommend it because it requires some screw modifications to make it work.

I would, however recommend this one:
http://www.swiftnets.com/products/mcx159-CU.asp

   Report Go to top

Re: Amiga Micro and DMA
Just can't stay away
Joined:
2006/11/24 17:54
From Sanremo
Posts: 1808
In the micro i can install every kind of heatsink and fan for the cpu ?

   Report Go to top

Re: Amiga Micro and DMA
Quite a regular
Joined:
2006/11/27 22:17
From Israel
Posts: 932
Afaik, it's the same module as XE, isn't it?

If so, the best chance is to find something that can use the 2 holes that already exist in the module. Extra thought on the solution that won't fall down is crucial. The link that appeared couple of posts ago looks like a good solution.

edit: meanwhile you can use a standard room fan blowing air on the cpu area to increase the circulation and test the DVD playback...

Jack

_________________
Resized Image
"the expression, 'atonal music,' is most unfortunate--it is on a par with calling flying 'the art of not falling,' or swimming 'the art of not drowning.'. A. Schoenberg
   Report Go to top

Re: Amiga Micro and DMA
Just can't stay away
Joined:
2006/11/24 17:54
From Sanremo
Posts: 1808
@All

Everything works fine now that a new version of DVPlayer and the avcodec.library have been released

i don't know where was the problem ( DVPlayer or AVCodec.library ) but now i can watch DVD on the amiga and it' s fantastic to see how much they are smooth on a " simple " G3 800Mhz without ( for the moment ) the overlay

Well, what can i say ? ... AMIGA RULEZ

   Report Go to top

Re: Amiga Micro and DMA
Quite a regular
Joined:
2006/12/2 0:35
From Sydney
Posts: 685
That's good news - now you can edit the thread heading to say "SOLVED!"

   Report Go to top

Re: Amiga Micro and DMA
Not too shy to talk
Joined:
2006/11/27 15:55
From SYS:Prefs/
Posts: 374
You can't know, maybe the problem is still the cooler but the new version use less cpu...

_________________
Amiga News.it
   Report Go to top

Re: Amiga Micro and DMA
Quite a regular
Joined:
2006/11/27 22:17
From Israel
Posts: 932
Quote:

ikir wrote:
You can't know, maybe the problem is still the cooler but the new version use less cpu...


Totally agree. A good idea is to make the cpu busy with some cpu-hungry task running at low task pri while playing dvd, let it run for 10-15 minutes at least.
Just to make sure the thing is solved.

Jack

_________________
Resized Image
"the expression, 'atonal music,' is most unfortunate--it is on a par with calling flying 'the art of not falling,' or swimming 'the art of not drowning.'. A. Schoenberg
   Report Go to top

Re: Amiga Micro and DMA
Home away from home
Joined:
2006/11/26 21:45
From a story that hasn't been written yet
Posts: 3532
@Jack

DNetC is a good stress tester (I use it 24/7 and my miggy
runs as stable as a rock

_________________
If slaughterhouses had glass walls, everyone would be a vegetarian. ~ Sir Paul McCartney
-
Did everything just taste purple for a second? ~ Philip J. Fry
-
Ain't got no cash, ain't got no style, ladies vomit when I smile. ~ Dr.
   Report Go to top


(1) 2 »



[Advanced Search]


Powered by XOOPS 2.0 © 2001-2016 The XOOPS Project