Пример #1
0
    def __init__(self, revision, sys_clk_freq=int(50e6), with_ethernet=False, with_etherbone=False, **kwargs):
        platform = pano_logic_g2.Platform(revision=revision)
        if with_etherbone:
            sys_clk_freq = int(125e6)

        # SoCCore ----------------------------------------------------------------------------------
        SoCCore.__init__(self, platform, sys_clk_freq,
            ident          = "LiteX SoC on Pano Logic G2",
            ident_version  = True,
            **kwargs)

        # CRG --------------------------------------------------------------------------------------
        self.submodules.crg = _CRG(platform, sys_clk_freq, with_ethernet=with_ethernet or with_etherbone)

        # Ethernet / Etherbone ---------------------------------------------------------------------
        if with_ethernet or with_etherbone:
            self.submodules.ethphy = LiteEthPHY(
                clock_pads         = self.platform.request("eth_clocks"),
                pads               = self.platform.request("eth"),
                clk_freq           = sys_clk_freq,
                with_hw_init_reset = False)
            self.add_csr("ethphy")
            if with_ethernet:
                self.add_ethernet(phy=self.ethphy)
            if with_etherbone:
                self.add_etherbone(phy=self.ethphy)

        # Leds -------------------------------------------------------------------------------------
        self.submodules.leds = LedChaser(
            pads         = platform.request_all("user_led"),
            sys_clk_freq = sys_clk_freq)
        self.add_csr("leds")
Пример #2
0
    def __init__(self, sys_clk_freq=int(50e6), **kwargs):
        platform = pano_logic_g2.Platform()

        # SoCCore ----------------------------------------------------------------------------------
        SoCCore.__init__(self, platform, clk_freq=sys_clk_freq, **kwargs)

        # CRG --------------------------------------------------------------------------------------
        self.submodules.crg = _CRG(platform, sys_clk_freq)

        # Leds -------------------------------------------------------------------------------------
        self.submodules.leds = LedChaser(
            pads=Cat(*[platform.request("user_led", i) for i in range(3)]),
            sys_clk_freq=sys_clk_freq)
        self.add_csr("leds")

        # Take Ethernet Phy out of reset for SYSCLK of 125 Mhz
        gmii_rst_n = platform.request("gmii_rst_n")
        self.comb += [gmii_rst_n.eq(1)]