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src/main/scala/backBoard/shin/ShinMst.scala

@@ -0,0 +1,120 @@
+package BACK
+
+import chisel3._
+import chisel3.util._
+
+class Header_Info_Bundle extends Bundle{
+  val operator = UInt(8.W)
+  val length   = UInt(8.W)
+  val param    = Vec(3, UInt(16.W))
+
+  def init = operator === 0.U
+  def sync = operator === 1.U
+  def boardCast = operator === 2.U
+  def uniCast   = operator === 3.U
+}
+
+
+
+abstract class ShinMstPhyBase extends Module{
+
+  val mirrorDown = Module(new MirrorSRAMDP())
+  val mirrorUp   = Module(new MirrorSRAMDP())
+
+
+
+  val cdrOut = Module(new CDROut)
+
+}
+
+
+trait ShinMstSend{ this: ShinMstPhyBase =>
+  def isSendTrig: Bool
+  def isRecvEnd: Bool
+  def isTimeout: Bool
+
+
+  val sendStateNext = Wire( UInt(3.W) )
+  val sendStateCurr = RegNext( sendStateNext, 0.U )
+
+  val sendHeader = Wire( new Header_Info_Bundle )
+
+  val sendCnt = Reg(UInt(10.W))
+
+  sendStateNext := Mux1H(Seq(
+    (sendStateCurr === 0.U) -> Mux( isSendTrig, 1.U, 0.U ),
+    (sendStateCurr === 1.U) -> Mux( cdrOut.io.axis.fire & sendCnt === ((sendHeader.getWidth()/8)*2-1).U, 2.U, 1.U ),
+    (sendStateCurr === 2.U) -> Mux( cdrOut.io.axis.fire & sendCnt === (sendHeader.length << 1) - 1.U,    3.U, 2.U ),
+    (sendStateCurr === 3.U) -> Mux( isRecvEnd | isTimeout, 0.U, 3.U ),
+  ))
+
+  when( sendStateCurr === 0.U ){
+    when( sendStateNext === 1.U ) {
+      sendCnt := 0.U
+    }
+  } .elsewhen( sendStateCurr === 1.U ){
+    when( cdrOut.io.axis.fire ){
+      sendCnt := Mux( sendStateNext =/= 2.U, sendCnt + 1.U, 0.U )
+    }
+  } .elsewhen( sendStateCurr === 2.U ){
+    when( cdrOut.io.axis.fire ){
+      sendCnt := Mux( sendStateNext =/= 3.U, sendCnt + 1.U, 0.U )
+    }
+  }
+
+  cdrOut.io.axis.valid := sendStateCurr === 1.U | sendStateCurr === 2.U
+  cdrOut.io.axis.bits.tdata := 
+    Mux1H(Seq(
+      ( sendStateCurr === 1.U ) -> sendHeader.asUInt >> (sendCnt << 3),
+      ( sendStateCurr === 2.U ) -> Mux( sendCnt.extract(0), mirrorDown(7,0), mirrorDown(15,8) ),
+    ))
+  cdrOut.io.axis.bits.tlast := sendStateCurr === 2.U & sendCnt === (sendHeader.length << 1) - 1.U
+  cdrOut.io.axis.bits.tuser := false.B
+
+
+
+}
+
+trait ShinMstRecv{ this: ShinMstPhyBase =>
+
+}
+
+
+
+
+abstract class ShinMstLinkBase extends ShinMstPhyBase
+with ShinMstSend
+with ShinMstRecv
+
+
+
+trait ShinMstInit{ this: ShinMstLinkBase =>
+
+}
+
+trait ShinMstSync{ this: ShinMstLinkBase =>
+
+}
+
+trait ShinMstTrans{ this: ShinMstLinkBase =>
+
+}
+
+trait ShinMstError{ this: ShinMstLinkBase =>
+
+}
+
+trait ShinMstInterface{ this: ShinMstLinkBase =>
+
+}
+
+
+
+
+class ShinMst extends ShinMstLinkBase
+with ShinMstInit
+with ShinMstSync
+with ShinMstTrans
+with ShinMstError
+with ShinMstInterface
+