Hello,
as ever, thanks for your reply; i will read it later, and sorry about my poor english language: on the post above, i mean 'i reply with a question'!.
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C= also notes that cards built to 'behavior' rather than to 'the specs' are going to have issues depending on how far out of timing they are. ...
that's true! I have built hardware and software (i mean content of the PLD of the card) with regard of what i have read on the document 'A500 A2000 Technical Reference Manual' about the signals of the Zorro II bus and the timing, and all was respected (nature of every signal generated by the PLD) during develop of this card; then the technical manuals of Motorola for MC68000, MC68020 and MC68030 and the specs of the IDE bus and his timing, by X3 (from T9.2 and succ.); and all the signals was measured and i was happy and sure about a good result...and that was on my Amiga 3000D.
If i could to sketch a graph of what happened to my card sent for a test, this will look, more or less, so:
the first day the card was seen by the system (Autoconfig) but the device driver (installed later) fails; presumably this happens more time the same day;
a new day, time to change daughterboard and later motherboard of an Amiga 4000D; the card is sometime seen by the system, but not with some third party daughterboards; fears about 3.1.4 happens here; the line of the graph sinks terribly!
after a couple of days i receive an info that a CF formatted under 3.9 is not seen by my tool that mounts DOS partitions; formatted on my card, the CF is not seen as DOS device on the internal IDE port of the A4000! Anyway, the line of the graph, rises positively...
after that, just short comunications that 'more test are needed'; the line of the graph stop his job...'comunication interrupted'.
I have requested the return of my card and possibly, with an old and not working A3640, to check my card into my Amiga with a 040 cpu. So, if you wish to donate an old A3640, without cpu, in not working state; and/or a 2000 motherboard (about revision 6), withou any socketed IC except the two CIAA and CIAB, i will be wery grateful!
Chers
stefano