def wrap_dut(self, b, a, dut):
self.b, self.a, params = get_params(b,
a,
shift=dut.shift.value,
width=len(dut.c["a1"]))
dut = CsrParams(dut, params)
return dut
def wrap_dut(self, b, a, dut):
self.b, self.a, params = get_params(b,
a,
shift=dut.shift.value,
width=len(dut.a[1]))
dut = ResetParams(dut, params)
return dut
def set_iir(self, prefix, b, a, z=0):
shift = self.get(prefix + "_shift") or 16
width = self.get(prefix + "_width") or 18
interval = self.get(prefix + "_interval") or 1
b, a, params = get_params(b, a, shift, width, interval)
for k in sorted(params):
self.set(prefix + "_" + k, params[k])
self.set(prefix + "_z0", z)
for i in range(len(b), 3):
n = prefix + "_b%i" % i
if n in self.map:
self.set(n, 0)
self.set(prefix + "_a%i" % i, 0)