Question

我正在尝试将BlackBox连接到任意Bundle，但宽度推断似乎不适用于fromBits函数。以下编译正常：

class testBundle extends Bundle {
  val io1 = Bool(INPUT)
  val io2 = UInt(INPUT,10)
}

class testBox extends BlackBox {
  val io = new Bundle {
    val in = Bits(INPUT) # Width inference works fine here
    val out = Bits(OUTPUT,(new testBundle).getWidth) # But it doesn't work here!
  }
}

class test extends Module {
  val io = new Bundle {
    val in = new testBundle
    val out = (new testBundle).flip()
  }
  val testbox = Module(new testBox)
  testbox.io.in := io.in.toBits
  io.out := io.out.fromBits(testbox.io.out)
}

但是如果删除(new testBundle).getWidth参数，Chisel就无法推断输出端口的宽度和错误。如何让testBox连接到任意捆绑包？

Answer 1

现在我通过将bundle作为参数传递给BlackBox来解决这个问题：

mysql_install_db

我欢迎更清洁的解决方案。

如何从扁平捆绑中推断出宽度？

1 个答案: