Hmmm.. ok.. well at the moment the point of me using sio2pc is to get ancient floppies moved to ATR.. so maybe release 2 is best for now.. or I will just run AspeQt until it is fixed.
I did post my original schematic by Nick Kenedy that I built. I am not a chip guy.. but should we not be able to see how polarity was from that?
r2 also has a risk for data loss the fix for this in r3 is actually what caused your SIO2PC to no longer work. But I believe the conditions for issues with r2 when using hardware handshaking are even less likely than the potential issues with r3 when using NONE. Even so, the chances of data issues with r3 in NONE are absolutely miniscule. You just have to happen to have a piece of data that looks like a format command, basically, which means a chance of about 1 out of 1,099,511,627,776 that any random sequence of 5 bytes looks like a format command.
And I'll also add that this issue will NOT cause data loss on your real atari drives, only the emulated ATR's in RespeQt. And it will be obvious, RespeQt will log a format command that shouldn't be there.
EDIT: running some numbers, it seems that you have to transfer 128GB of random data, to real drives, before there is a .1% chance of having a random format command in there
Edited by Joey Z, Mon Apr 11, 2016 7:24 PM.