I'll run with this.
Kinda slow, actually. Anyone got any tips for a Compact Flash drive in a 2000 on a 2091 controller? Could bad termination be slowing things down? We're talking transfer rates in the 90K/s range.
Have you tried the utility "vb2091" on Aminet? It really made a big difference for me when using an an A2091 and a 68040 accelerator with 32-bit RAM on board. Helps with the DMA issues.
aminet.net/package/driver/media/vb2091
I eventually bought a GURU Rom from my A2091, which was also good, but it was damaged a few years ago through some sort of electrical fault and I don't know if anyone can repair the GURU ROM (I guess the chips on it would have to be replaced and flashed with the GURU ROM code - I have the bin images for these chips but cannot burn them).
Here's some good reading on the A2091 and accelerator RAM DMA issues:
http://members.quicknet.nl/rhm.herold/computing/amiga/DMA%20and%20Accelerators%20FAQ.htm