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调整同步spi的enw enr的byte数

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RuigeLee
2026-01-28 16:37:43 +08:00
parent aac6e215d7
commit d0a0fe2836
1 changed files with 3 additions and 3 deletions
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6
src/main/scala/backBoard/shin/SpiInterface.scala
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@@ -65,8 +65,8 @@ abstract class SpiInterfaceBase extends Module with RequireAsyncReset{
val spiLenTemp = RegInit(2.U(12.W))
val spiCnt = RegInit(0.U(12.W))
io.isEnW := isSckPosedgeNext(0) & ~shiftCSn(2) & bitSelNext.andR & isSpiWrite & byteSelNext >= 3.U & (spiCnt < spiLen)
io.isEnR := (isSckPosedge & ~shiftCSn(1) & bitSel === 0.U & isSpiRead & byteSel >= 3.U ) & (spiCnt <= spiLen)
io.isEnW := isSckPosedgeNext(0) & ~shiftCSn(2) & bitSelNext.andR & isSpiWrite & byteSelNext >= 4.U & (spiCnt < spiLen)
io.isEnR := (isSckPosedge & ~shiftCSn(1) & bitSel === 0.U & isSpiRead & byteSel >= 4.U ) & (spiCnt <= spiLen)
io.dataw := exRegi
io.addrr := addrr
@@ -104,7 +104,7 @@ abstract class SpiInterfaceBase extends Module with RequireAsyncReset{
} .elsewhen(isSckPosedge & ~shiftCSn(1) & bitSel.andR & byteSel === 1.U) {//CS为低，且SCK上跳的第0byte
addrr := Cat(addrr(7,0), exRegi(6,0), shiftMOSI)
} .otherwise{ // byteSel > 1.U
when( isSckPosedge & byteSel >= 3.U & bitSel === 0.U ){
when( isSckPosedge & byteSel >= 4.U & bitSel === 0.U ){
addrr := addrr + 1.U
}
}