Вот моя окончательная реализация множителя DSP, которая должна поддерживать числа FixedPoint и DspComplex.@ChickMarkley, как мне обновить этот класс для реализации сложного умножения?
package my_pkg
import chisel3._
import dsptools.numbers.{Ring,DspComplex}
import dsptools.numbers.implicits._
import dsptools.{DspContext}
import chisel3.core.{FixedPoint => FP}
import dsptools.{DspTester, DspTesterOptions, DspTesterOptionsManager}
class FPGenericIO[A <: Data:Ring, B <: Data:Ring] (inType:A, outType:B) extends Bundle {
val a = Input(inType.cloneType)
val b = Input(inType.cloneType)
val c = Output(outType.cloneType)
override def cloneType = (new FPGenericIO(inType, outType)).asInstanceOf[this.type]
}
class FPMul[A <: Data:Ring, B <: Data:Ring] (inType:A, outType:B) extends Module {
val io = IO(new FPGenericIO(inType, outType))
DspContext.withNumMulPipes(3) {
io.c := io.a * io.b
}
}
class FPMulTester[A <: Data:Ring, B <: Data:Ring](c: FPMul[A,B]) extends DspTester(c) {
val uut = c.io
//
// This will PASS, there is sufficient precision to model the inputs
//
poke(uut.a, 3.25)
poke(uut.b, 2.5)
step(1)
expect(uut.c, 3.25*2.5)
//
// This will FAIL, there is not sufficient precision to model the inputs
// But this is only caught on output, this is likely the right approach
// because you can't really pass in wrong precision data in hardware.
//
poke(uut.a, 3.1)
poke(uut.b, 2.2)
step(1)
expect(uut.c, 3.1*2.2)
}
object FPUMain extends App {
val fpInType = FP(8.W, 4.BP)
val fpOutType = FP(12.W, 6.BP)
//val comp = DspComplex[Double] // How to declare a complex DSP type ?
val opts = new DspTesterOptionsManager {
dspTesterOptions = DspTesterOptions(
fixTolLSBs = 0,
genVerilogTb = false,
isVerbose = true
)
}
dsptools.Driver.execute (() => new FPMul(fpInType, fpOutType), opts) {
//dsptools.Driver.execute (() => new FPMul(comp, comp), opts) { // <-- this won't compile
c => new FPMulTester(c)
}
}