diff --git a/src/main/scala/backBoard/BackBoardMst.scala b/src/main/scala/backBoard/BackBoardMst.scala
index d4f8103..76f2329 100644
--- a/src/main/scala/backBoard/BackBoardMst.scala
+++ b/src/main/scala/backBoard/BackBoardMst.scala
@@ -45,10 +45,12 @@ class BackBoardMstBase extends RawModule{
     val slvNum  = Wire(UInt(5.W))
 
 
-  mirrorDown.io.clock := io.ides_pclk.asBool
-  mirrorDown.io.reset := io.reset.asBool
-  mirrorUp.io.clock := io.ides_pclk.asBool
-  mirrorUp.io.reset := io.reset.asBool
+  mirrorDown.io.clockw := io.ides_pclk.asBool
+  mirrorDown.io.clockr := io.oser_pclk.asBool
+
+  mirrorUp.io.clockw := io.oser_pclk.asBool
+  mirrorUp.io.clockr := io.ides_pclk.asBool
+
 }
 
 
@@ -186,30 +188,35 @@ trait BackBoardMstLVDS{ this: BackBoardMstBase =>
 
       assert(false.B)
     }
-  }
 
-  withClockAndReset( io.oser_pclk.asClock, io.reset ){
+
+
+
+
+
+
+
     val addrr = RegInit(0.U(11.W))
     val addrw = RegInit(0.U(11.W))
 
     when( trigger_wire ){
       addrw := 0.U
-    } .elsewhen( lvdsMst.io.rx_data_valid ){
+    } .elsewhen( lvdsMst.io.rx_data_valid & ~isSync){
       assert( (stateCur_wire === 2.U) || (stateCur_wire === 3.U) )
       addrw := addrw + 1.U
     }
 
     when( trigger_wire ){
       addrr := 0.U
-    } .elsewhen( lvdsMst.io.tx_data_ready ){
+    } .elsewhen( lvdsMst.io.tx_data_ready & ~isSync){
       addrr := addrr + 1.U
     }
 
-    mirrorDown.io.enr := (stateCur_wire === 1.U || stateCur_wire === 2.U)
+    mirrorDown.io.enr := (stateCur_wire === 1.U || stateCur_wire === 2.U) & ~isSync
     lvdsMst.io.tx_data_in := mirrorDown.io.datar
     mirrorDown.io.addrr := addrr
     
-    mirrorUp.io.enw    := lvdsMst.io.rx_data_valid
+    mirrorUp.io.enw    := lvdsMst.io.rx_data_valid & ~isSync
     mirrorUp.io.dataw := lvdsMst.io.rx_data_out
     mirrorUp.io.addrw := addrw
 
diff --git a/src/main/scala/backBoard/BackBoardSlv.scala b/src/main/scala/backBoard/BackBoardSlv.scala
index 2293abc..4240724 100644
--- a/src/main/scala/backBoard/BackBoardSlv.scala
+++ b/src/main/scala/backBoard/BackBoardSlv.scala
@@ -105,7 +105,7 @@ trait BackBoardSlvDown{ this: BackBoardSlvBase =>
 trait BackBoardSlvUp{ this: BackBoardSlvBase =>
 
   withClockAndReset( io.oser_pclk.asClock, io.reset ){
-    val upCnt = RegInit(0.U(6.W))
+    val upCnt = RegInit(31.U(6.W))
     val upTimeoutEn  = RegInit( false.B )
     val upTimeoutRst = (upCnt === 0.U & lvdsSlv.io.upstream_tx_data_ready)
     val ( _, upTimeout ) = Counter( Range( 0,1023 ), upTimeoutEn, upTimeoutRst )
@@ -126,18 +126,20 @@ trait BackBoardSlvUp{ this: BackBoardSlvBase =>
 
     when( upTimeout ){
       upTimeoutEn := false.B
-    } .elsewhen( upCnt === 32.U ){
+    } .elsewhen( upCnt === 31.U ){
       upTimeoutEn := false.B
-    } .elsewhen(upCnt === 32.U & lvdsSlv.io.upstream_tx_data_ready){
+    } .elsewhen(upCnt === 0.U & lvdsSlv.io.upstream_tx_data_ready){
       upTimeoutEn := true.B
     }
 
     when( upTimeout ){
       upCnt := 0.U
-    }.elsewhen( upCnt === 32.U & lvdsSlv.io.upstream_tx_data_ready ){
-      upCnt := 0.U
     }.elsewhen( lvdsSlv.io.upstream_tx_data_ready ){
-      upCnt := upCnt + 1.U
+      when(upCnt === 31.U){
+        upCnt := 0.U        
+      } .elsewhen( lvdsSlv.io.upstream_tx_data_ready ){
+        upCnt := upCnt + 1.U
+      }
     }
 
   }
diff --git a/src/main/scala/backBoard/LocalRegisters.scala b/src/main/scala/backBoard/LocalRegisters.scala
index 5c6671c..6a0aa26 100644
--- a/src/main/scala/backBoard/LocalRegisters.scala
+++ b/src/main/scala/backBoard/LocalRegisters.scala
@@ -10,7 +10,9 @@ class BackBoardSlvDigitalIO extends BackBoardSlvBase with BackBoardSlvDown with
   val oe  = IO(Output(UInt(32.W)))
 
   withClockAndReset( io.ides_pclk.asClock, io.reset ){
-    val upReg   = Reg(Vec(32, UInt(8.W))); upRegWire   := upReg
+    // val upReg   = Reg(Vec(32, UInt(8.W)))
+    val upReg   = RegInit(VecInit((0 until 32).map{i => i.U(8.W)}))
+    upRegWire   := upReg
     out := Cat( (0 until 4).map{i => downRegWire(i)}.reverse )
     oe  := Cat( (4 until 8).map{i => downRegWire(i)}.reverse )
 
diff --git a/src/main/scala/backBoard/MirrorSRAM.scala b/src/main/scala/backBoard/MirrorSRAM.scala
index e645af9..330bb78 100644
--- a/src/main/scala/backBoard/MirrorSRAM.scala
+++ b/src/main/scala/backBoard/MirrorSRAM.scala
@@ -4,40 +4,120 @@ import chisel3._
 import chisel3.util._
 
 
-class MirrorSRAM(dw: Int,  cl: Int) extends RawModule {
-  def line_w   = log2Ceil(cl)
-  val io = IO(new Bundle{
-    val addrr  = Input(UInt(line_w.W))
-    val addrw  = Input(UInt(line_w.W))
+// class MirrorSRAM(dw: Int,  cl: Int) extends RawModule {
+//   def line_w   = log2Ceil(cl)
+//   val io = IO(new Bundle{
+//     val addrr  = Input(UInt(line_w.W))
+//     val addrw  = Input(UInt(line_w.W))
 
-    val dataw = Input( UInt(dw.W) )
-    val datar = Output( UInt(dw.W) )
-    val enw   = Input(Bool())
-    val enr   = Input(Bool())
+//     val dataw = Input( UInt(dw.W) )
+//     val datar = Output( UInt(dw.W) )
+//     val enw   = Input(Bool())
+//     val enr   = Input(Bool())
 
-    val clock = Input(Bool())
-    val reset = Input(Bool())
-  })
+//     val clock = Input(Bool())
+//     val reset = Input(Bool())
+//   })
 
 
-  withClockAndReset( io.clock.asClock, io.reset ){
-    val mem = SyncReadMem( cl, UInt(dw.W) )
+//   withClockAndReset( io.clock.asClock, io.reset ){
+//     val mem = SyncReadMem( cl, UInt(dw.W) )
 
 
 
 
-    io.datar := DontCare
-    when( io.enr ) {
-      io.datar := mem.read( io.addrr )
-    } 
-    when( io.enw ) {
-      mem.write( io.addrw, io.dataw )
-    }
+//     io.datar := DontCare
+//     when( io.enr ) {
+//       io.datar := mem.read( io.addrr )
+//     } 
+//     when( io.enw ) {
+//       mem.write( io.addrw, io.dataw )
+//     }
+//   }
+
+
+
+
+// }
+
+
+
+
+
+
+
+//     val addrr  = Input(UInt(line_w.W))
+//     val addrw  = Input(UInt(line_w.W))
+
+//     val dataw = Input( UInt(dw.W) )
+//     val datar = Output( UInt(dw.W) )
+//     val enw   = Input(Bool())
+//     val enr   = Input(Bool())
+
+//     val clock = Input(Bool())
+//     val reset = Input(Bool())
+
+
+class MirrorSRAM(dw: Int,  cl: Int) extends BlackBox with HasBlackBoxInline {
+  require(dw == 8)
+  require(cl == 2048)
+  class MirrorSRAMIO extends Bundle{
+      val addrr  = Input(UInt(11.W))
+      val addrw  = Input(UInt(11.W))
+
+      val dataw = Input( UInt(8.W) )
+      val datar = Output( UInt(8.W) )
+      val enw   = Input(Bool())
+      val enr   = Input(Bool())
+
+      val clockr = Input(Bool())
+      val clockw = Input(Bool())
+
   }
+  val io: MirrorSRAMIO = IO(new MirrorSRAMIO)
 
-
-
-
+ setInline("MirrorSRAM.v",
+              """
+      | module MirrorSRAM(
+      |  	input [7:0]  dataw,
+      |  	input [10:0] addrw,
+      |  	input enw,
+      |  
+      |  	output [7:0] datar,
+      |  	input [10:0] addrr,
+      |  	input enr,
+      |  
+      |  	input clockr,
+      |   input clockw
+      |  );
+      |  
+      |  	reg [7:0] ram[0:2047];
+      |  	reg [7:0] data_r_reg;
+      |  
+      |  			always @(posedge clockw) begin
+      |  				if(enw) begin
+      |  					ram[addrw] <= #1 dataw;					
+      |  				end
+      |       end
+      |  
+      |       always @(posedge clockr) begin
+      |  				if(enr) begin
+      |  					data_r_reg <= #1 ram[addrr];
+      |  				end
+      |  			end
+      |  
+      |  	assign datar = data_r_reg;
+      |  
+      |  initial begin
+      |  	for ( integer i = 0; i < 2048; i = i + 1 ) begin
+      |  		ram[i] = $random;
+      |  	end
+      |  
+      |  	data_r_reg = $random;
+      |  end
+      |   
+      |endmodule
+    """.stripMargin)
 }
 
 
@@ -45,6 +125,16 @@ class MirrorSRAM(dw: Int,  cl: Int) extends RawModule {
 
 
 
+
+
+
+
+
+
+
+
+
+
 // class MirrorSRAMIO extends Bundle{
 //   val datar = Output(UInt(8.W))
 //   val dataw = Input(UInt(8.W))