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by exxos
Sat May 18, 2019 5:45 pm
Forum: STF REMAKE PROJECT
Topic: STE DAC FPGA issues
Replies: 16
Views: 342

Re: STE DAC FPGA issues

But honestly, I'm not sure it is a good idea to implement STE sound DMA on a system without a full STE Shifter. You are building a configuration that would create compatibility problems and most software won't use sound DMA in such an hybrid anyway. You will have to explain what the shifter has to ...
by exxos
Sat May 18, 2019 1:15 pm
Forum: STF REMAKE PROJECT
Topic: STE DAC FPGA issues
Replies: 16
Views: 342

Re: STE DAC FPGA issues

All the cores are done and complete. Not just MMU and not just the custom chipset, but also MFP, FDC, IKBD, etc. A complete ST system that runs everything we tried so far, including demos and copy protected games. A couple of user recorded some videos on youtube. This is Troed's Closure: Impressive...
by exxos
Sat May 18, 2019 11:15 am
Forum: STF REMAKE PROJECT
Topic: STE DAC FPGA issues
Replies: 16
Views: 342

Re: STE DAC FPGA issues

Are you talking about STE sound DMA, or about the Microwire? I'm not sure I understand why you would want to implement either on a non STE system. Or are you talking about something else? STE DAC & DMA initially. The suska is essentially a STE. So if I start using the suska cores on the remake proj...
by exxos
Sat May 18, 2019 1:06 am
Forum: MEMBER BLOGS
Topic: exxos blog - random goings on
Replies: 171
Views: 3037

Re: exxos blog - random goings on

Autorouter finally finished after maxing out 8 cores for 10 hours straight :roll: it did not do much routing on the vcc layer and there was some nice huge slabs of copper still, but unfortunately it broke several vcc pins :( I'm really not surprised. It used about 800 vias at best , over about 1200 ...
by exxos
Fri May 17, 2019 11:18 pm
Forum: HARDWARE ISSUES
Topic: Atari TT Repair
Replies: 7
Views: 114

Re: Atari TT Repair

I never had a TT, but I think they are not easy to fix. Normally you start making sure the reset line is working, then check /AS & /DTACK on the CPU to see if its at least trying to do something. Also check CE & OE on the ROM's to see if it looks like they are being accessed.. you need a good scope ...
by exxos
Fri May 17, 2019 10:59 pm
Forum: HARDWARE ISSUES
Topic: Atari TT Repair
Replies: 7
Views: 114

Re: Atari TT Repair

What do you mean "powers up" exactly, as if it was powered up it would be working ? Or do you mean it has power but nothing happens ? Or its got power and accessing the floppy (as it trying to boot up) and no display ?
by exxos
Fri May 17, 2019 10:14 pm
Forum: BLAST FROM THE PAST
Topic: ABOUT THIS SECTION
Replies: 0
Views: 28

ABOUT THIS SECTION

Post images of old hardware upgrades or tech with a little info about them if possible.

This forum is more of a static archive of old tech than a discussion forum of old tech.
by exxos
Fri May 17, 2019 10:04 pm
Forum: MEMBER BLOGS
Topic: exxos blog - random goings on
Replies: 171
Views: 3037

Re: exxos blog - random goings on

Made some tweaks like making the "front to back" support thinner. The PSU PCB will hold it all firm anyway, so it doesn't need to be as thick as it was.

Wings have been bulked up a fair bit and the support posts have been created. So Monday will print it out again :)

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by exxos
Fri May 17, 2019 9:27 pm
Forum: MEMBER BLOGS
Topic: exxos blog - random goings on
Replies: 171
Views: 3037

Re: exxos blog - random goings on

All the Falcon RAM boards done, some more 16MB simms tested. Loads of STE DUAL TOS ROM's done today as well. Eagle still hanging like f*ck trying to route the remake board. I'm allow it to use the VCC layer.. probably regret it... Now doing a bit more to the PSU bracket.. Making thing a bit stronger...
by exxos
Fri May 17, 2019 9:23 pm
Forum: HARDWARE DISCUSSIONS
Topic: Help with Unknown overscan Mod please
Replies: 3
Views: 91

Re: Help with Unknown overscan Mod please

Maybe these will give some clues ?

http://atari4ever.free.fr/#video