I'm having trouble getting an ACC-12C to work with the JDISP port from an ACC-5E in a TURBO UMAC. The unit displays, but blinks. I've seen this before on setups I've done with TURBO1 PCI boards, but the problem would go away once I did writes to memory as instructed by Delta Tau as follows:
WY:$10D0,$16 ; tells PMAC this is a ACC-12C
WY:$10CD,$E,$13
I also had to slow down the CPU speed by setting I52 from 7 to 2.
These steps don't seem to work with the UMAC. The ACC-12C manual only gives instructions for memory writes for the non-Turbo PMACS. The memory writes above were given to me years ago by someone from the help desk for the TURBO. Are there a different set of memory writes I need to do for the ACC-5E ($78400 addresses)?