[Oberon] FPGA - Oberon - Sound

Tomas Kral thomas.kral at email.cz
Mon Oct 29 20:03:53 CET 2018

> need a sound HW.

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

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.


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

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