Sonnet 7200 PCI programming

[esel]

Originally Posted by Wrangler

DNETC_WOS is compiled with altivec instructions I believe so only works on a G4.


The crashes you are getting could be a number of things. Based on my own experience, the following are candidates:

• PCI USB card - caused crashes for me, but others have them working fine. Took me a long time to track this down. If you have one, pull it out and see if there is an improvement.
• Overheating - particularly if it takes time to get a crash (like you do). Have you got enough cooling in the case? Leave the case off and turn a desk fan on the PCI/Zorro area as a test to see if that improves stability.
• Power problems. Could be a weak PSU or poor power distribution around the system. Try a different PSU and clean all connectors very carefully with isopropyl alcohol.

It's much more likely the problem you have is hardware than software.

Usb Card is not installed. if i install it the ppc wont even start i get the error „PowerPC CPU possibly crashed during Setup“
overhaeting is no issue as the case is open and a added some cooling fans.

But Power could be an issue..

i mesured the 5v rail and i only got 4,86 V.
I think that could be the problem as 4,86 is very low for the 5 V rail.


i will try a new powersupply and see if that will help.

[nexus]

well it should be +-5% its the drops that get you
also bad caps in a power supply will have bad ripple which can also cause many issues
they dont have to leak or look bad to be bad fyi
anyone messing with this old stuff really should have a capacitance checker or buy a better multimeter with it
if the cap deviates from its rated -+5 or 10% then it should be replaced
ofc replace with better low ESR caps

[nexus]

i have power issue with a new a4k build i just did the skynet psu caps are shot on 5v rails
year ago i bought a few of these super cheap brand new
https://www.newegg.com/Product/Produ...82E16817103446
will see how they do in time
they have various other wattages in that series

I would be careful with the power supply, which is 100% regulated to 12 volts.
and that's not so good for the Amiga because the main rail is 5 volts.
looks for DC-DC power supplies.
Seasonic has a good selection, e.g. ssp-450rt.
For DC-DC power supplies, the 5-volt rail is also regulated

[nexus]

what are you talking about? DC-DC? we arent using pico psus nor would you want to

anyways most power supplies today regulate the 5v/3.3v from 12v
this is more about supplying enough power to voodoo/mediator/ppc not amiga

but yes you do need a strong 5v rail or mod 3.3v
everything just depends on your setup

now you could use the 12v and use a DC to DC 5v if you are over loading that rail but you would have to route that 5v in somewhere

one thing when looking at power supplies is always go over that way they run cool and efficient and you always have extra headroom for future things
next important is what you really get from whatever psu when you are using 12v/5v together
ratings on them confuse people due to them showing more amps on all rails then the power supply can do
the amp watt rating for givin voltage is if you are using that voltage only and nothing else
and that rating was pulled from a special environment with a certain ambient temp in the room

anyways bottom line is every amiga psu and amiga really need a recap now as the caps in them are over due
loading down these amiga like this you can be having voltage drops and all kind of other issues
you think are software related but arent
eg this A4000D i just did was fine with a bad 5v rail till i put a PPC in
only K1 would have enough power to run all others you be lucky to even boot

the good thing is if you find a decent PSU with enough amps on all rails needed most will mount right to the old screw holes when you transplant into old PSU housing same for A3000D just in that case you need to make sure the heatsink etc in the PSU you chose are 1u high
that above i chose for a couple of builds is a tad shorter so i just have to mod up 2 standoffs rest is just soldering work

Well modern ATX power supplies have a regulated 12Volt rail, which means that when a load on the 5 volt rail comes this is not regulated.
It can happen that the 5 volt rail sinks to 4.8 volts without adjusting the power supply.

and no I'm not talking about PicoNT but ATX power supplies.
Please take a look at the data of the Seasonic SSP-450RT power supply.

https://seasonic.com/rt#specification



sorry for my bad English.

[Hedeon]

Seen this?

[ Show youtube player ]

Look at the numbers. That is 604e 420MHz with a CVPPC card.

At 6:22. I'm guessing it's the CVPPC. Would be nice to know how it does with a Voodoo3.

It does of course run AOS4.

[deling]

Price is also excellent , for 100-150 eur I have killer k1-m1 and similar quality like this stuff above for sick money

[Hedeon]

Been fiddling with the a1200 the last few days.

AHI sound is started with a stdioreq with a msgport with pa softint. If I change this to ignore then quake starts with paula dma sound. As the msgport is used for a callback function to check progress of playing, only the very first fraction of a second (vblank?) of the very first sound is played in a loop.

Also a timer request is done for vblank. And a whole new interrupt server chain is set up for audio. Interrupts 7-11. 7 is vblank I think ( I'm on my phone) with SetInVec and AddIntServer.

Even if I force everything in 68k mem it still crashes. The crash happens every time when in some interrupt (S bit set). My guess when the mediator window is not in the correct place and not handled (correctly) by the mediator interrupt which shifts the window. This mediator interrupt is in the bus error chain.

I'm going to try to see if the same happens with 040 as the 060 has done extra peculiarities according to Elbox, but I'm close in giving up.

[Wrangler]

Originally Posted by Hedeon

Seen this?

[ Show youtube player ]

Look at the numbers. That is 604e 420MHz with a CVPPC card.

At 6:22. I'm guessing it's the CVPPC. Would be nice to know how it does with a Voodoo3.

It does of course run AOS4.

Yeah, I get similar figures from Sulaco on my CSPPC/CVPPC combo. Think the biggest factor affecting the score is the CVPPC. But if you had CSPPC+mediator then the Zorro bus would be the factor...

[starship]

Originally Posted by Hedeon

Seen this?

[ Show youtube player ]

Look at the numbers. That is 604e 420MHz with a CVPPC card.

At 6:22. I'm guessing it's the CVPPC. Would be nice to know how it does with a Voodoo3.

It does of course run AOS4.

And ifusion_ppc

[Hedeon]

I tried to get the source of iFusion and original WarpOS to see what I've been missing... No such luck on both accounts.

[grelbfarlk]

Hmm no source. WaitaminuteIhaveanidea!

[amigoun]

From what I have read on web from the time iFusion was developed, it only could run on 604e due to some MMU tables stuff. They never make it work on 603. Also only supported direct video mode on CGX, so most likely no chance it would run on P96.
Porting that Sheepshaver is likely the only way to have MAC-PPC emu.

[grelbfarlk]

Originally Posted by amigoun

From what I have read on web from the time iFusion was developed, it only could run on 604e due to some MMU tables stuff. They never make it work on 603. Also only supported direct video mode on CGX, so most likely no chance it would run on P96.
Porting that Sheepshaver is likely the only way to have MAC-PPC emu.

For what it's worth, not much, but Ifusion does work on P96 ok. Hey that's a great idea Amigoun, any volunteers? Still a bounty for that if there are any takers.

[starship]

https://github.com/cebix/macemu/tree...heepShaver/src

Can it be?

[grelbfarlk]

Yes we all know the source to Sheepshaver is open, it needs porting though as it has a bunch of Unix stuff we don't have. I think with enough shouting and punching it would run, unfortunately the source is just not impressed by the power level of my punches and yelling.

[starship]

[esel]

Originally Posted by grelbfarlk

...unfortunately the source is just not impressed by the power level of my punches and yelling.

[grelbfarlk]

Bounty list got a little shorter.