diff --git a/firmware/soc.py b/firmware/soc.py
index 0515f93..2630fda 100644
--- a/firmware/soc.py
+++ b/firmware/soc.py
@@ -108,14 +108,14 @@ io = [
                 Subsignal("sdo", Pins("T14")),
                 IOStandard("LVCMOS33")),
         ("adc", 2,
-                Subsignal("conv", Pins("T15")),
-                Subsignal("sck", Pins("T16")),
-                Subsignal("sdo", Pins("N15")),
+                Subsignal("conv", Pins("N15")),
+                Subsignal("sck", Pins("M16")),
+                Subsignal("sdo", Pins("V17")),
                 IOStandard("LVCMOS33")),
         ("adc", 3,
-                Subsignal("conv", Pins("M16")),
-                Subsignal("sck", Pins("V17")),
-                Subsignal("sdo", Pins("U18")),
+                Subsignal("conv", Pins("U18")),
+                Subsignal("sck", Pins("R17")),
+                Subsignal("sdo", Pins("P17")),
                 IOStandard("LVCMOS33")),
         ("adc", 4,
                 Subsignal("conv", Pins("U11")),
@@ -128,14 +128,14 @@ io = [
                 Subsignal("sdo", Pins("R13")),
                 IOStandard("LVCMOS33")),
         ("adc", 6,
-                Subsignal("conv", Pins("R15")),
-                Subsignal("sck", Pins("P15")),
-                Subsignal("sdo", Pins("R16")),
+                Subsignal("conv", Pins("R16")),
+                Subsignal("sck", Pins("N16")),
+                Subsignal("sdo", Pins("N14")),
                 IOStandard("LVCMOS33")),
         ("adc", 7,
-                Subsignal("conv", Pins("N16")),
-                Subsignal("sck", Pins("N14")),
-                Subsignal("sdo", Pins("U17")),
+                Subsignal("conv", Pins("U17")),
+                Subsignal("sck", Pins("T18")),
+                Subsignal("sdo", Pins("R18")),
                 IOStandard("LVCMOS33"))
 ]