# Pastebin VYoJsM8z
        # LiteScope --------------------------------------------------------------------------------
        self.pcie_endpoint.crossbar.finalize()
        from litescope import LiteScopeAnalyzer
        analyzer_signals = [
            # PHY.
            self.pcie_phy.m_axis_cq.valid,
            self.pcie_phy.m_axis_cq.ready,
            self.pcie_phy.m_axis_cq.last,
            self.pcie_phy.s_axis_cc.valid,
            self.pcie_phy.s_axis_cc.ready,
            self.pcie_phy.s_axis_cc.last,
            self.pcie_phy.s_axis_rq.valid,
            self.pcie_phy.s_axis_rq.ready,
            self.pcie_phy.s_axis_rq.last,
            self.pcie_phy.m_axis_rc.valid,
            self.pcie_phy.m_axis_rc.ready,
            self.pcie_phy.m_axis_rc.last,
        ]
        self.submodules.analyzer = LiteScopeAnalyzer(analyzer_signals,
            depth        = 512,
            clock_domain = "sys",
            samplerate   = sys_clk_freq,
            csr_csv      = "analyzer.csv"
        )