https://drive.google.com/file/d/1BMd1o3 ... sp=sharing
Badwolf wrote: ↑Tue Jan 18, 2022 9:52 pm
Glad you've made some progress, although I am surprised that's had such an effect. ~10ns compared to a 62.5ns cycle seems immaterial, but who knows: perhaps those PALs were using every inch of that overhead already.
is the document for an Amiga 040 card that got me looking into the TS/TA lines.
The AB040 already utilizes the 88915 as described in the document.
Reading through it after obtaining a better understanding of it all, not sure the AB is that far off timing wise as it is running
at 46/23MHz and decent fast ram burst speeds, where the Amiga board it states it crashes as soon as the caches are enabled.
I've hit a wall at 46MHz, 48MHz crashes as soon as the Tool Kit installs fast ram.
Seeing how without the driver Tool Kit it, the 040 and AB will run at 55MHz, thought there may be another inch had by looking into
widening TS as proposed. To determine that, need an LA.
Wether or not that has anything to do with the 060 adapter, dunno. Again, monitoring some signals on RST would provide some insight.
also of interest https://drive.google.com/file/d/1hbVi3p ... sp=sharing