I did some more checking on this. The Space Firebird board set is not compatible with the DK power supply, but if you have a spare set of 9 and 10 pin power cables, you can easily make a power harness that will work.
The 9 pin power is a direct match:
Pin 1: Gnd
Pin 2: Gnd
Pin 3: Gnd
Pin 4: +12v
Pin 5: +12v
Pin 6: +5v
Pin 7: +5v
Pin 8: -5v
Pin 9: +24v
The 10 pin power cable, however, does not match. On the DK power supply, it's:
Pin 1: -5v
Pin 2: -5v
Pin 3: -5v
Pin 4: -5v
Pin 5: Gnd
Pin 6: Gnd
Pin 7: Gnd
Pin 8: Gnd
Pin 9: +5v
Pin10: +5v
The Space Firebird 10 pin power needs:
Pin 1: Gnd
Pin 2: Gnd
Pin 3: Gnd
Pin 4: +12v
Pin 5: +12v
Pin 6: +12v
Pin 7: +12v
Pin 8: +5v
Pin 9: +5v
Pin10: -5v
So, by de-pinning the 10 pin power cable, and rearranging wires, I can get Gnd, +5v, and -5v supplied to the 10 pin connector. But the Space Firebird also needs +12v on that connector too. The solution? Borrow one of the 12v wires from the 9 pin power cable, leaving one 12v in the 9 pin, and using the other 12v in the 10 pin.
I tried this arrangement with my DK power supply and my Space Firebird board set and it booted perfectly. Now I have a custom made power harness allowing me to bench test my other Space Firebird board using my DK power supply.
Why do this? Well, two reasons:
- DK power supplies are easier to come by
- If I ever want to send my Space Firebird boards out for service (which I plan to do), I can now send just the boards and my custom harness, rather than having to mail a 25 pound linear power supply along with the boards.