Yes, that makes sense - hope you get time to try that board once it arrives!Badwolf wrote: ↑Thu Jan 26, 2023 6:56 pm I think it's a Falcon IDE problem -- unlike the ASCI and SCSI ports, it's a 16 bit bus. Atari chose to do everything big-endian whereas the convention everywhere else is little-endian.
So you can either byteswap in software, which is, I think, what breaks auto-boot, or people have had success with twisted cables (swapping the bytes physically).
I've knocked up this little board to play with, but haven't received it yet on account of the Chinese new year.
In the meantime, I've uncovered another old external HDD - a System Solutions one with an ICD Link 2 plugged into an older SCSI 1 50 way connector so if I can find my SCSI 2 to SCSI 1 lead, I might have a relatively simple way to transfer data...
I do fancy the dual IDE connectors/adapters still as a final solution though, so will try to source a suitable cable & take it from there.