hdl: Use SA placer since HeAP isn't doing so good here

For some reason HeAP isn't meeting timing, SA does more reliably, and on such a small design SA is quite fast enough, so use it. Thanks to @gojimmypi for reporting and PR. Fixes #1 Signed-off-by: Sylvain Munaut <[email protected]>
smunaut · Aug 8, 2020 · afce3e4 · afce3e4
1 parent 1ef2110
commit afce3e4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/hdl/Makefile b/hdl/Makefile
@@ -7,7 +7,7 @@ PACKAGE = sg48
 ARACHNE = arachne-pnr
 ARACHNE_ARGS =
 NEXTPNR = nextpnr-ice40
-NEXTPNR_ARGS =
+NEXTPNR_ARGS = --placer sa
 ICEPACK = icepack
 ICETIME = icetime
 ICEPROG = iceprog