atari8warez Posted October 17, 2012 Share Posted October 17, 2012 (edited) I've got it cased up and have been putting it through its paces with AspeQt.. I had mentioned before that I couldn't get lower than Pokey 3 or 4 using AspeQt and Sloopy's SIO2USB ( ) device. I was able to get to zero with this FTDI board and the high-speed code of the IDE+2. I did get several files trashed at zero using my HD backup program written in Action!. So zero looks like it may be a bit too much for this setup. Maybe a better sector copier might do better. But anyway, I'm very pleased with the results. -Larry I use Hias's hi-speed patch with DOS 2.5 (or the hi-speed OS that came with U1MB which is already patched, with SDX 4.45) and haven't had any problems with divisor 0 so far. At that divisor AspeQt shows 125KB operating speed (read). With SDX I have a CONFIG.SYS file with DEVICE SIO /A line in it. /A tells SDX to use OS's SIO routines rather than the one built-in SDX. This way divisor 0 is possible without problems. Also having a fast PC seems to make a difference. I believe SDX manual suggests setting the divisor as low as 3 to have a stable operation when using SDX's SIO routines. I haven't used Sloopy's cable but mine (the one I build and sell) is also based on FT232Rx chip (like sloopy's) and it has no problems at divisor 0 (in fact that chip is rated up to 3Mbaud) so the bottleneck is usually the software not the hardware. Edited October 17, 2012 by atari8warez Quote Link to comment Share on other sites More sharing options...
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