调整解锁条件为10个连续0
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@@ -17,13 +17,6 @@ abstract class CDRInBase extends Module{
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val io: CDRInIO = IO(new CDRInIO)
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val STATE_IDLE = 0.U
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val STATE_HEADER = 1.U
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val STATE_PAYLOAD = 2.U
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val stateNext = Wire(UInt(2.W))
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val stateCurr = RegNext( stateNext, STATE_IDLE )
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val syncSerDat = Wire(Bool())
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}
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@@ -71,30 +64,30 @@ trait CDRInOverSample{ this: CDRInBase =>
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}
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trait CDRInMultiSample{ this: CDRInBase =>
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val testIO = IO(Output(UInt(10.W)))
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val clkNum: Int = 16
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//multiCLK 需要按照滞后相位接线,即0为最先到达,1次先
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val multiCLK = IO(Input(Vec(8, Bool())))
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val multiCLK = IO(Input(Vec(clkNum, Bool())))
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val sampleReg = Wire(Vec(8, Bool()))
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for( i <- 0 until 8 ) {
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val sampleReg = Wire(Vec(clkNum, Bool()))
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for( i <- 0 until clkNum ) {
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sampleReg(i) := withClockAndReset(multiCLK(i).asClock, reset.asBool){ ShiftRegister( io.serDat, 2 ) }
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}
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val sampleReg_sync = Wire(Vec(16,Bool()))
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val sampleReg_sync = Wire(Vec(2*clkNum,Bool()))
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for( i <- 0 until 8 ){
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for( i <- 0 until clkNum ){
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sampleReg_sync(i) := ShiftRegister(sampleReg(i), 2)
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}
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for( i <- 8 until 16 ){
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sampleReg_sync(i) := ShiftRegister(sampleReg(i-8), 1)
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for( i <- clkNum until 2*clkNum ){
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sampleReg_sync(i) := ShiftRegister(sampleReg(i-clkNum), 1)
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}
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/*
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@@ -109,63 +102,49 @@ trait CDRInMultiSample{ this: CDRInBase =>
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*/
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val flitReg =
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for( i <- 1 until 15 ) yield {
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for( i <- 1 until (2*clkNum)-1 ) yield {
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(sampleReg_sync(i-1) & sampleReg_sync(i+0)) |
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(sampleReg_sync(i-1) & sampleReg_sync(i+1)) |
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(sampleReg_sync(i+0) & sampleReg_sync(i+1))
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}
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val arbLock = Reg(UInt( 8.W ))
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val clearCnt = Reg(UInt(4.W))
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val arbLock = Reg(UInt( clkNum.W ))
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val isLock = RegInit(false.B)
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when( sampleReg.reduce(_|_) === false.B ){
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when( clearCnt =/= 10.U ){
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clearCnt := clearCnt + 1.U
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}
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} .otherwise{
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clearCnt := 0.U
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}
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//优先级电路,优先选择跳变的后一相进行操作,电路上需要做成可调的
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when( ~isLock ){
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when( flitReg(0) ^ flitReg(1) ){
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arbLock := "b1".U(16.W) << 0
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isLock := true.B
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} .elsewhen( flitReg(1) ^ flitReg(2) ){
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arbLock := "b1".U(16.W) << 1
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isLock := true.B
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} .elsewhen( flitReg(2) ^ flitReg(3) ){
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arbLock := "b1".U(16.W) << 2
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isLock := true.B
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} .elsewhen( flitReg(3) ^ flitReg(4) ){
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arbLock := "b1".U(16.W) << 3
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isLock := true.B
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} .elsewhen( flitReg(4) ^ flitReg(5) ){
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arbLock := "b1".U(16.W) << 4
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isLock := true.B
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} .elsewhen( flitReg(5) ^ flitReg(6) ){
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arbLock := "b1".U(16.W) << 5
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isLock := true.B
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} .elsewhen( flitReg(6) ^ flitReg(7) ){
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arbLock := "b1".U(16.W) << 6
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isLock := true.B
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} .elsewhen( flitReg(7) ^ flitReg(8) ){
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arbLock := "b1".U(16.W) << 7
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for( i <- 0 until clkNum ){
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val j = clkNum - i -1
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when( flitReg(j) ^ flitReg(j+1) ){
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arbLock := "b1".U(clkNum.W) << j
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isLock := true.B
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}
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} .elsewhen( stateNext === STATE_IDLE & stateCurr === STATE_PAYLOAD ){
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}
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} .elsewhen( clearCnt === 10.U ){
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isLock := false.B
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}
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val asyncSerDat =
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Mux1H(
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(for { i <- 0 until 8 } yield {
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(arbLock === (1.U << i)) -> flitReg(i+4)
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(for { i <- 0 until clkNum } yield {
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(arbLock === (1.U << i)) -> flitReg(i+(clkNum/2))
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})
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)
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syncSerDat := asyncSerDat
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syncSerDat := asyncSerDat //ShiftRegister( asyncSerDat, 2 )
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testIO := Cat( syncSerDat, Cat(flitReg), io.serDat )
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}
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@@ -177,6 +156,13 @@ trait CDRInAxis{ this: CDRInBase =>
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val ETH_PRE = "b1100010001".U(10.W)
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val ETH_SFD = "b0110100111".U(10.W)
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val STATE_IDLE = 0.U
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val STATE_HEADER = 1.U
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val STATE_PAYLOAD = 2.U
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val stateNext = Wire(UInt(2.W))
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val stateCurr = RegNext( stateNext, STATE_IDLE )
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val bitCnt = Reg(UInt(4.W))
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@@ -11,7 +11,7 @@ class ShinTopIO extends Bundle{
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val uDatIn = Input(Bool())
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val uDatOut = Output(Bool())
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val multiCLK = Input(Vec(8, Bool()))
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val multiCLK = Input(Vec(16, Bool()))
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val iqspi = new QSPIInterfaceIO
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val ospi = new SSPIInterfaceIO
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@@ -37,7 +37,6 @@ class ShinTopIO extends Bundle{
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val xtal = Output(UInt(12.W))
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val spiSel = Output(UInt(2.W))
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val testIO = Output(UInt(12.W))
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}
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@@ -76,10 +75,6 @@ abstract class ShinTopBase extends Module{
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io.ledTest := RegNext( Cat(slaveParser.io.intHWTrig(0), slaveParser.io.intHWTrig(1)) )
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io.testIO := Cat(
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downCDROut.io.serDat, downCDRIn.testIO, clock.asBool
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)
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io.isSoftReset := interface.io.isSoftReset
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io.interrupt := interface.io.interrupt
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