如何从正在测试它的测试器内部访问用于构造模块的参数?
在下面的测试中,我将参数明确地传递给模块和测试器。我宁愿不必将它们传递给测试器,而是从同样传入的模块中提取它们。
此外,我是 scala/chisel 的新手,因此我将不胜感激任何关于我正在使用的不良技术的提示:)。
import Chisel._
import math.pow
class TestA(dataWidth: Int, arrayLength: Int) extends Module {
val dataType = Bits(INPUT, width = dataWidth)
val arrayType = Vec(gen = dataType, n = arrayLength)
val io = new Bundle {
val i_valid = Bool(INPUT)
val i_data = dataType
val i_array = arrayType
val o_valid = Bool(OUTPUT)
val o_data = dataType.flip
val o_array = arrayType.flip
}
io.o_valid := io.i_valid
io.o_data := io.i_data
io.o_array := io.i_array
}
class TestATests(c: TestA, dataWidth: Int, arrayLength: Int) extends Tester(c) {
val maxData = pow(2, dataWidth).toInt
for (t <- 0 until 16) {
val i_valid = rnd.nextInt(2)
val i_data = rnd.nextInt(maxData)
val i_array = List.fill(arrayLength)(rnd.nextInt(maxData))
poke(c.io.i_valid, i_valid)
poke(c.io.i_data, i_data)
(c.io.i_array, i_array).zipped foreach {
(element,value) => poke(element, value)
}
expect(c.io.o_valid, i_valid)
expect(c.io.o_data, i_data)
(c.io.o_array, i_array).zipped foreach {
(element,value) => poke(element, value)
}
step(1)
}
}
object TestAObject {
def main(args: Array[String]): Unit = {
val tutArgs = args.slice(0, args.length)
val dataWidth = 5
val arrayLength = 6
chiselMainTest(tutArgs, () => Module(
new TestA(dataWidth=dataWidth, arrayLength=arrayLength))){
c => new TestATests(c, dataWidth=dataWidth, arrayLength=arrayLength)
}
}
}