diff --git a/spiOverJtag/Makefile b/spiOverJtag/Makefile
index cbfe00a..37a3f36 100644
--- a/spiOverJtag/Makefile
+++ b/spiOverJtag/Makefile
@@ -1,7 +1,7 @@
 XILINX_PARTS := xc3s500evq100 \
 	xc6slx9tqg144 xc6slx9csg324 \
 	xc6slx16ftg256 xc6slx16csg324 xc6slx45csg324 xc6slx100fgg484 \
-	xc6slx45tfgg484 xc6slx150tfgg484 xc6slx150tcsg484 \
+	xc6slx25tcsg324 xc6slx45tfgg484 xc6slx150tfgg484 xc6slx150tcsg484 \
 	xc6vlx130tff784 \
 	xc7a15tcpg236 \
 	xc7a25tcpg238 xc7a25tcsg325 \
diff --git a/spiOverJtag/build.py b/spiOverJtag/build.py
index 5118d9b..b77d972 100755
--- a/spiOverJtag/build.py
+++ b/spiOverJtag/build.py
@@ -76,6 +76,7 @@ if tool in ["ise", "vivado"]:
         "xc6slx9csg324"    : "xc6s_csg324",
         "xc6slx16ftg256"   : "xc6s_ftg256",
         "xc6slx16csg324"   : "xc6s_csg324",
+        "xc6slx25tcsg324"  : "xc6s_t_csg324",
         "xc6slx45csg324"   : "xc6s_csg324",
         "xc6slx45tfgg484"  : "xc6s_t_fgg484",
         "xc6slx100fgg484"  : "xc6s_fgg484",
@@ -124,6 +125,7 @@ if tool in ["ise", "vivado"]:
                             "xc6slx9csg324":    "xc6slx9",
                             "xc6slx16ftg256":   "xc6slx16",
                             "xc6slx16csg324":   "xc6slx16",
+                            "xc6slx25tcsg324":  "xc6slx25t",
                             "xc6slx45csg324":   "xc6slx45",
                             "xc6slx45tfgg484":  "xc6slx45t",
                             "xc6slx100fgg484":  "xc6slx100",
@@ -140,6 +142,7 @@ if tool in ["ise", "vivado"]:
                             "xc6slx9csg324":    "csg324",
                             "xc6slx16ftg256":   "ftg256",
                             "xc6slx16csg324":   "csg324",
+                            "xc6slx25tcsg324":  "csg324",
                             "xc6slx45csg324":   "csg324",
                             "xc6slx45tfgg484":  "fgg484",
                             "xc6slx100fgg484":  "fgg484",
diff --git a/spiOverJtag/constr_xc6s_t_csg324.ucf b/spiOverJtag/constr_xc6s_t_csg324.ucf
new file mode 100644
index 0000000..c240d63
--- /dev/null
+++ b/spiOverJtag/constr_xc6s_t_csg324.ucf
@@ -0,0 +1,11 @@
+CONFIG VCCAUX = "2.5";
+
+NET "sdi_dq0"  LOC = T13 | IOSTANDARD = LVCMOS25;
+NET "sdo_dq1"  LOC = R13 | IOSTANDARD = LVCMOS25;
+NET "wpn_dq2"  LOC = T14 | IOSTANDARD = LVCMOS25;
+NET "hldn_dq3" LOC = V14 | IOSTANDARD = LVCMOS25;
+NET "csn"      LOC = V3  | IOSTANDARD = LVCMOS25;
+NET "sck"      LOC = R15 | IOSTANDARD = LVCMOS25;
+
+NET "sck" TNM_NET = "PRDsck";
+TIMESPEC "TSsck" = PERIOD "PRDsck" 6 ns HIGH 50%;
diff --git a/spiOverJtag/spiOverJtag_xc6slx25tcsg324.bit.gz b/spiOverJtag/spiOverJtag_xc6slx25tcsg324.bit.gz
new file mode 100644
index 0000000..111f1a6
Binary files /dev/null and b/spiOverJtag/spiOverJtag_xc6slx25tcsg324.bit.gz differ