diff --git a/src/main/scala/backBoard/shin/SpiInterface.scala b/src/main/scala/backBoard/shin/SpiInterface.scala
index 3111274..0b3b5ac 100644
--- a/src/main/scala/backBoard/shin/SpiInterface.scala
+++ b/src/main/scala/backBoard/shin/SpiInterface.scala
@@ -151,7 +151,7 @@ class QSpiInterface extends SpiInterfaceBase{
   sck       := qspi.sck
   csn       := qspi.csn
   qspi.miso := exRego(7, 4)
-  qspi.isDirIn := isSpiWrite
+  qspi.isDirIn := ~isSpiRead
 
   when( shiftCSn(2) & ~shiftCSn(1) ){
     bitSel := 0.U