The root cause was that for autovectors it was reading the data bus too fast. before the data was ready. When that happened it read FF instead of the correct autovector number and everything went downhill from there.arkadiusz.makarenko wrote: ↑Wed Sep 15, 2021 2:42 pmBtw.terriblefire wrote: ↑Wed Sep 15, 2021 10:34 am There is no reliable way to do an A600 accelerator. So i will not do it.
What was the cause that this card initially worked only on some board revisions or was it only related to ROM?
TF1230 Beta Interest (Open Source)
Moderators: terriblefire, Terriblefire Moderator
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Re: TF1230 Beta Interest (Open Source)
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: TF1230 Beta Interest (Open Source)
@terriblefire Any chance of bringing the build cost down further with a QFP 132 footprint? Those 030 CPU's are cheap and plentiful.
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Re: TF1230 Beta Interest (Open Source)
i'm not a fan of those. If they dont work you have to resolder them. And they dont work at 50Mhz ... if you're dropping down to 40mhz just use this...
https://www.ebay.co.uk/itm/172657814756 ... SwhvFZCZQ3
Plus like i said.. I'm actually done with Amiga accelerators. Once the current crop are sorted out there will be no more.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: TF1230 Beta Interest (Open Source)
Fair enough, it was just an idea.
Re: TF1230 Beta Interest (Open Source)
@exxos made an adaptor from pga to smt cpus. The cpusbwould mostly work ok but required a heatsink to be fitted whereas the pga ones don't as you guys know.
If it ain't broke, test it to Destruction.
Re: TF1230 Beta Interest (Open Source)
@PaulJ_2.0 totally agree, the price of pga cpus has increased greatly but the smt ones haven't yet.
If it ain't broke, test it to Destruction.
Re: TF1230 Beta Interest (Open Source)
I don't know if they die shrunk the QFP over its life, but the one on a Blizzard MK1 runs hot hot hot.
Re: TF1230 Beta Interest (Open Source)
Gold cpus is best
Smt never run on 50mhz
Smt never run on 50mhz