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Fix certain UART FFs not being initialized during reset #11

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Fix certain UART FFs not being initialized during reset #11

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4 changes: 2 additions & 2 deletions src/main/scala/devices/uart/UARTRx.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@ class UARTRx(c: UARTParams) extends Module {
val debounce_max = (debounce === UInt(3))
val debounce_min = (debounce === UInt(0))

val prescaler = Reg(UInt(width = c.divisorBits - c.oversample + 1))
val prescaler = Reg(init = UInt(0, width = c.divisorBits - c.oversample + 1))
val start = Wire(init = Bool(false))
val pulse = (prescaler === UInt(0))

Expand All @@ -33,7 +33,7 @@ class UARTRx(c: UARTParams) extends Module {
val data_count = Reg(UInt(width = dataCountBits))
val data_last = (data_count === UInt(0))
val parity_bit = (data_count === UInt(1)) && io.enparity.getOrElse(false.B)
val sample_count = Reg(UInt(width = c.oversample))
val sample_count = Reg(init = UInt(0, width = c.oversample))
val sample_mid = (sample_count === UInt((c.oversampleFactor - c.nSamples + 1) >> 1))
val sample_last = (sample_count === UInt(0))
val countdown = Cat(data_count, sample_count) - UInt(1)
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