[Oberon] FPGA - Oberon - Sound

[Tomas Kral]

> need a sound HW.

Pepino LX9 supports audio, but how to map audio in `UCF' constraint
file?

How do I know what location corresponds to what hardware connected?

Comparing `Pepino' wiring diagram with various `UCF' files I have got, I
simply cannot see any clue, as also `UCF' files differ albeit
for the same platform.

e.g.

One file
#DIP switch
NET "SWI[0]"       LOC = "G14" | PULLDOWN; # right-most switch 
...
The other
NET "swi[0]" LOC = "F12"; # no pull down?
...
# SRAM
NET "SRAM_CE0"     LOC = "H4"; #active low
...
The other
# SRAM
NET "SRce0" LOC = "P7";

How do I know the `LOC'ation?

# audio
NET "AudioL"      LOC = "???";
NET "AudioR"      LOC = "???";

-- 
Tomas Kral <thomas.kral at email.cz>