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正确锁住，丢包率大

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RuigeLee
2024-09-23 17:52:59 +08:00
parent 10b2e4c78f
commit 753586a65e
1 changed files with 6 additions and 4 deletions
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10
src/main/scala/backBoard/ebus/CDRIn.scala
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@@ -95,10 +95,12 @@ trait CDRInAxis{ this: CDRInBase =>
val operation = header(15,8) val operation = header(15,8)
val param = header( 7,0) val param = header( 7,0)
val isArbLock: Bool
val checkSFD = ShiftRegister( shiftData, 8 )
stateNext := stateNext :=
Mux1H(Seq( Mux1H(Seq(
(stateCurr === STATE_IDLE) -> ( Mux( isArbLock & (shiftData === ETH_SFD), STATE_HEADER, STATE_IDLE )), //IDLE (stateCurr === STATE_IDLE) -> ( Mux( isArbLock & checkSFD === ETH_PRE & (shiftData === ETH_SFD), STATE_HEADER, STATE_IDLE )), //IDLE
(stateCurr === STATE_HEADER) -> ( Mux( (byteCnt === (HeaderByte-1).U) & (bitCnt === 7.U), STATE_PAYLOAD, STATE_HEADER ) ), (stateCurr === STATE_HEADER) -> ( Mux( (byteCnt === (HeaderByte-1).U) & (bitCnt === 7.U), STATE_PAYLOAD, STATE_HEADER ) ),
(stateCurr === STATE_PAYLOAD) -> ( Mux( (byteCnt === (payloadLen-1.U) ) & (bitCnt === 7.U), STATE_CRC, STATE_PAYLOAD )), // PAYLOAD (stateCurr === STATE_PAYLOAD) -> ( Mux( (byteCnt === (payloadLen-1.U) ) & (bitCnt === 7.U), STATE_CRC, STATE_PAYLOAD )), // PAYLOAD
(stateCurr === STATE_CRC) -> ( Mux( (byteCnt === 3.U) & (bitCnt === 7.U), STATE_IDLE, STATE_CRC )), //CRC (stateCurr === STATE_CRC) -> ( Mux( (byteCnt === 3.U) & (bitCnt === 7.U), STATE_IDLE, STATE_CRC )), //CRC
@@ -106,15 +108,15 @@ trait CDRInAxis{ this: CDRInBase =>
val isArbLock: Bool
when( shiftData === ETH_SFD & stateCurr === STATE_IDLE & isArbLock ){ //first align
when( shiftData === ETH_SFD & stateCurr === STATE_IDLE & isArbLock & checkSFD === ETH_PRE ){ //first align
bitCnt := 0.U bitCnt := 0.U
} .otherwise{ } .otherwise{
bitCnt := bitCnt + 1.U bitCnt := bitCnt + 1.U
} }
when( shiftData === ETH_SFD & stateCurr === STATE_IDLE & isArbLock ){ //first align when( shiftData === ETH_SFD & stateCurr === STATE_IDLE & isArbLock & checkSFD === ETH_PRE ){ //first align
byteCnt := 0.U byteCnt := 0.U
} .elsewhen( bitCnt === 7.U ){ } .elsewhen( bitCnt === 7.U ){
when( stateCurr === STATE_HEADER ){ when( stateCurr === STATE_HEADER ){