diff --git a/spiOverJtag/constr_xc6s_csg324.ucf b/spiOverJtag/constr_xc6s_csg324.ucf
new file mode 100644
index 0000000..f9ef767
--- /dev/null
+++ b/spiOverJtag/constr_xc6s_csg324.ucf
@@ -0,0 +1,8 @@
+CONFIG VCCAUX = "2.5";
+
+NET "sdi_dq0"  LOC = T13 | IOSTANDARD = LVCMOS33;
+NET "sdo_dq1"  LOC = R13 | IOSTANDARD = LVCMOS33;
+NET "wpn_dq2"  LOC = T14 | IOSTANDARD = LVCMOS33;
+NET "hldn_dq3" LOC = V14 | IOSTANDARD = LVCMOS33;
+NET "csn"      LOC = V3  | IOSTANDARD = LVCMOS33;
+NET "sck"      LOC = R15 | IOSTANDARD = LVCMOS33;