滤波器触发bug修复，还是有问题

src/main/scala/backBoard/LocalRegisters.scala

@@ -126,7 +126,7 @@ trait BackBoardSlvIn { this: BackBoardSlvLocal =>
 
   def gp: Int
 
-  val flitNum = 64
+  val flitNum = 32
   require(flitNum <= 128)
 
   val in = IO(Input(UInt((8*gp).W)))
@@ -134,7 +134,7 @@ trait BackBoardSlvIn { this: BackBoardSlvLocal =>
   val flitCnt = RegInit(MixedVecInit(Seq( 0.U(1.W), 0.U((log2Ceil(256/flitNum)).W), 0.U(1.W), 0.U(1.W), 0.U(1.W), 0.U(1.W), 0.U(1.W), 0.U(1.W), 0.U(1.W)) ))
   val flitTrigger = Wire(Vec(9, Bool()))
 
-  flitTrigger(0) := true.B
+  flitTrigger(0) := ~RegNext(flitTrigger(0))
 
   // flitTrigger(1) := usTrigger
 
@@ -202,7 +202,7 @@ trait BackBoardSlvIn { this: BackBoardSlvLocal =>
 
       ( 0 until 9 ).map{ k => 
         when( digitalFilter === k.U ){
-          when( flitTrigger(k) ){
+          when( (if( k == 0 ){ true.B } else {~RegNext(flitTrigger(k)) & flitTrigger(k)}) ){
             flitter(0) := in(i+8*j)
             (1 until flitNum).map{ k =>
               flitter(k) := flitter(k-1)