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Colors

RGB

You can use an Rgb bundle to model colors in hardware. This Rgb bundle take as parameter an RgbConfig classes which specify the number of bits for each channels :

case class RgbConfig(rWidth : Int,gWidth : Int,bWidth : Int) {
  def getWidth = rWidth + gWidth + bWidth
}

case class Rgb(c: RgbConfig) extends Bundle {
  val r = UInt(c.rWidth bits)
  val g = UInt(c.gWidth bits)
  val b = UInt(c.bWidth bits)
}

Those classes could be used as following :

val config = RgbConfig(5,6,5)
val color = Rgb(config)
color.r := 31