def __init__(self, sys_clk_freq=int(50e6), sdram_rate="1:1", **kwargs): platform = de0nano.Platform() # SoCCore ---------------------------------------------------------------------------------- SoCCore.__init__(self, platform, sys_clk_freq, ident = "LiteX SoC on DE0-Nano", ident_version = True, **kwargs) # CRG -------------------------------------------------------------------------------------- self.submodules.crg = _CRG(platform, sys_clk_freq, sdram_rate=sdram_rate) # SDR SDRAM -------------------------------------------------------------------------------- if not self.integrated_main_ram_size: sdrphy_cls = HalfRateGENSDRPHY if sdram_rate == "1:2" else GENSDRPHY self.submodules.sdrphy = sdrphy_cls(platform.request("sdram")) self.add_sdram("sdram", phy = self.sdrphy, module = IS42S16160(sys_clk_freq, sdram_rate), origin = self.mem_map["main_ram"], size = kwargs.get("max_sdram_size", 0x40000000), l2_cache_size = kwargs.get("l2_size", 8192), l2_cache_min_data_width = kwargs.get("min_l2_data_width", 128), l2_cache_reverse = True ) # Leds ------------------------------------------------------------------------------------- self.submodules.leds = LedChaser( pads = platform.request_all("user_led"), sys_clk_freq = sys_clk_freq) self.add_csr("leds")
def __init__(self, sys_clk_freq=int(50e6), **kwargs): platform = de0nano.Platform() # SoCCore ---------------------------------------------------------------------------------- SoCCore.__init__(self, platform, clk_freq=sys_clk_freq, **kwargs) # CRG -------------------------------------------------------------------------------------- self.submodules.crg = _CRG(platform, sys_clk_freq) # SDR SDRAM -------------------------------------------------------------------------------- if not self.integrated_main_ram_size: self.submodules.sdrphy = GENSDRPHY(platform.request("sdram")) self.add_sdram("sdram", phy=self.sdrphy, module=IS42S16160(sys_clk_freq, "1:1"), origin=self.mem_map["main_ram"], size=kwargs.get("max_sdram_size", 0x40000000), l2_cache_size=kwargs.get("l2_size", 8192), l2_cache_min_data_width=kwargs.get( "min_l2_data_width", 128), l2_cache_reverse=True) # Leds ------------------------------------------------------------------------------------- self.submodules.leds = LedChaser( pads=Cat(*[platform.request("user_led", i) for i in range(8)]), sys_clk_freq=sys_clk_freq) self.add_csr("leds")
def __init__(self, **kwargs): platform = de0nano.Platform() SoCSDRAM.__init__(self, platform, clk_freq=100 * 1000000, integrated_rom_size=0x8000, **kwargs) self.submodules.crg = _CRG(platform) if not self.integrated_main_ram_size: self.submodules.sdrphy = GENSDRPHY(platform.request("sdram"), ) sdram_module = IS42S16160(self.clk_freq, "1:1") self.register_sdram(self.sdrphy, sdram_module.geom_settings, sdram_module.timing_settings)
def __init__(self, sys_clk_freq=int(50e6), **kwargs): assert sys_clk_freq == int(50e6) platform = de0nano.Platform() # SoCSDRAM --------------------------------------------------------------------------------- SoCSDRAM.__init__(self, platform, clk_freq=sys_clk_freq, integrated_rom_size=0x8000, **kwargs) # CRG -------------------------------------------------------------------------------------- self.submodules.crg = _CRG(platform) # SDR SDRAM -------------------------------------------------------------------------------- if not self.integrated_main_ram_size: self.submodules.sdrphy = GENSDRPHY(platform.request("sdram")) sdram_module = IS42S16160(self.clk_freq, "1:1") self.register_sdram(self.sdrphy, geom_settings=sdram_module.geom_settings, timing_settings=sdram_module.timing_settings)