from migen import * from litex.soc.interconnect.csr import * from litex.soc.integration.doc import ModuleDoc # Test RGB Module ---------------------------------------------------------------------------------- class TestProp(Module, AutoCSR, ModuleDoc): """ Propagation Test Module Test propagation delay of the genSaw block """ def __init__(self, platform): platform.add_source("rtl/cordic.sv") platform.add_source("rtl/saw2sin.sv") self.targ0 = CSRStorage(size = 24, description = "Oscillator 0: Target Frequency of the Sawtooth Wave") self.wave0 = CSRStorage(size = 8, description = "Oscillator 0: Waveform to Output") self.delay = Signal(3) # Update i_saw after 2^3 = 8 cycles self.i_saw = Signal(16) self.o_sin = Signal(16) # # # self.sync += self.delay.eq(self.delay + 1) self.sync += If(self.delay == 0, self.i_saw.eq(self.i_saw + 1)) self.specials += Instance("saw2sin", i_i_clk = ClockSignal(), i_i_saw = self.i_saw, o_o_sin = self.o_sin, )