from migen.fhdl.std import * from migen.genlib.resetsync import AsyncResetSynchronizer from migen.genlib.cdc import MultiReg from migen.bank.description import * from migen.bank import wbgen from mibuild.generic_platform import * from mibuild.xilinx.vivado import XilinxVivadoToolchain from mibuild.xilinx.ise import XilinxISEToolchain from misoclib.com import gpio from misoclib.soc import mem_decoder from misoclib.mem.sdram.core.minicon import MiniconSettings from targets.kc705 import MiniSoC from artiq.gateware.soc import AMPSoC from artiq.gateware import rtio, nist_qc1, nist_qc2 from artiq.gateware.rtio.phy import ttl_simple, ttl_serdes_7series, dds class _RTIOCRG(Module, AutoCSR): def __init__(self, platform, rtio_internal_clk): self._clock_sel = CSRStorage() self._pll_reset = CSRStorage(reset=1) self._pll_locked = CSRStatus() self.clock_domains.cd_rtio = ClockDomain() self.clock_domains.cd_rtiox4 = ClockDomain(reset_less=True) rtio_external_clk = Signal() user_sma_clock = platform.request("user_sma_clock") platform.add_period_constraint(user_sma_clock.p, 8.0) self.specials += Instance("IBUFDS", i_I=user_sma_clock.p, i_IB=user_sma_clock.n, o_O=rtio_external_clk) pll_locked = Signal() rtio_clk = Signal() rtiox4_clk = Signal() self.specials += [ Instance("PLLE2_ADV", p_STARTUP_WAIT="FALSE", o_LOCKED=pll_locked, p_REF_JITTER1=0.01, p_CLKIN1_PERIOD=8.0, p_CLKIN2_PERIOD=8.0, i_CLKIN1=rtio_internal_clk, i_CLKIN2=rtio_external_clk, # Warning: CLKINSEL=0 means CLKIN2 is selected i_CLKINSEL=~self._clock_sel.storage, p_CLKFBOUT_MULT=8, p_DIVCLK_DIVIDE=1, i_CLKFBIN=self.cd_rtio.clk, i_RST=self._pll_reset.storage, o_CLKFBOUT=rtio_clk, p_CLKOUT0_DIVIDE=2, p_CLKOUT0_PHASE=0.0, o_CLKOUT0=rtiox4_clk), Instance("BUFG", i_I=rtio_clk, o_O=self.cd_rtio.clk), Instance("BUFG", i_I=rtiox4_clk, o_O=self.cd_rtiox4.clk), AsyncResetSynchronizer(self.cd_rtio, ~pll_locked), MultiReg(pll_locked, self._pll_locked.status) ] # 62.5MHz when using internal RTIO clock ext_clkout = platform.request("user_sma_gpio_p") self.sync.rtio += ext_clkout.eq(~ext_clkout) class _NIST_QCx(MiniSoC, AMPSoC): csr_map = { "rtio": None, # mapped on Wishbone instead "rtio_crg": 13, "kernel_cpu": 14, "rtio_moninj": 15 } csr_map.update(MiniSoC.csr_map) mem_map = { "rtio": 0x20000000, # (shadow @0xa0000000) "mailbox": 0x70000000 # (shadow @0xf0000000) } mem_map.update(MiniSoC.mem_map) def __init__(self, platform, cpu_type="or1k", **kwargs): MiniSoC.__init__(self, platform, cpu_type=cpu_type, sdram_controller_settings=MiniconSettings(l2_size=128*1024), with_timer=False, **kwargs) AMPSoC.__init__(self) self.submodules.leds = gpio.GPIOOut(Cat( platform.request("user_led", 0), platform.request("user_led", 1))) def add_rtio(self, rtio_channels): self.submodules.rtio_crg = _RTIOCRG(self.platform, self.crg.cd_sys.clk) self.submodules.rtio = rtio.RTIO(rtio_channels) self.add_constant("RTIO_FINE_TS_WIDTH", self.rtio.fine_ts_width) assert self.rtio.fine_ts_width <= 3 self.add_constant("DDS_RTIO_CLK_RATIO", 8 >> self.rtio.fine_ts_width) self.submodules.rtio_moninj = rtio.MonInj(rtio_channels) if isinstance(self.platform.toolchain, XilinxVivadoToolchain): self.platform.add_platform_command(""" create_clock -name rsys_clk -period 8.0 [get_nets {rsys_clk}] create_clock -name rio_clk -period 8.0 [get_nets {rio_clk}] set_false_path -from [get_clocks rsys_clk] -to [get_clocks rio_clk] set_false_path -from [get_clocks rio_clk] -to [get_clocks rsys_clk] """, rsys_clk=self.rtio.cd_rsys.clk, rio_clk=self.rtio.cd_rio.clk) if isinstance(self.platform.toolchain, XilinxISEToolchain): self.platform.add_platform_command(""" NET "sys_clk" TNM_NET = "GRPrsys_clk"; NET "{rio_clk}" TNM_NET = "GRPrio_clk"; TIMESPEC "TSfix_cdc1" = FROM "GRPrsys_clk" TO "GRPrio_clk" TIG; TIMESPEC "TSfix_cdc2" = FROM "GRPrio_clk" TO "GRPrsys_clk" TIG; """, rio_clk=self.rtio_crg.cd_rtio.clk) rtio_csrs = self.rtio.get_csrs() self.submodules.rtiowb = wbgen.Bank(rtio_csrs) self.kernel_cpu.add_wb_slave(mem_decoder(self.mem_map["rtio"]), self.rtiowb.bus) self.add_csr_region("rtio", self.mem_map["rtio"] | 0x80000000, 32, rtio_csrs) class NIST_QC1(_NIST_QCx): def __init__(self, platform, cpu_type="or1k", **kwargs): _NIST_QCx.__init__(self, platform, cpu_type, **kwargs) platform.add_extension(nist_qc1.fmc_adapter_io) self.comb += [ platform.request("ttl_l_tx_en").eq(1), platform.request("ttl_h_tx_en").eq(1) ] rtio_channels = [] for i in range(2): phy = ttl_serdes_7series.Inout_8X(platform.request("pmt", i)) self.submodules += phy rtio_channels.append(rtio.Channel.from_phy(phy, ififo_depth=512)) for i in range(15): phy = ttl_serdes_7series.Output_8X(platform.request("ttl", i)) self.submodules += phy rtio_channels.append(rtio.Channel.from_phy(phy)) phy = ttl_simple.Output(platform.request("user_led", 2)) self.submodules += phy rtio_channels.append(rtio.Channel.from_phy(phy)) self.add_constant("RTIO_REGULAR_TTL_COUNT", len(rtio_channels)) phy = ttl_simple.ClockGen(platform.request("ttl", 15)) self.submodules += phy rtio_channels.append(rtio.Channel.from_phy(phy)) self.add_constant("RTIO_DDS_CHANNEL", len(rtio_channels)) self.add_constant("DDS_CHANNEL_COUNT", 8) self.add_constant("DDS_AD9858") phy = dds.AD9858(platform.request("dds"), 8) self.submodules += phy rtio_channels.append(rtio.Channel.from_phy(phy, ofifo_depth=512, ififo_depth=4)) self.add_rtio(rtio_channels) class NIST_QC2(_NIST_QCx): def __init__(self, platform, cpu_type="or1k", **kwargs): _NIST_QCx.__init__(self, platform, cpu_type, **kwargs) platform.add_extension(nist_qc2.fmc_adapter_io) rtio_channels = [] for i in range(16): if i == 14: # TTL14 is for the clock generator continue if i % 4 == 3: phy = ttl_serdes_7series.Inout_8X(platform.request("ttl", i)) self.submodules += phy rtio_channels.append(rtio.Channel.from_phy(phy, ififo_depth=512)) else: phy = ttl_serdes_7series.Output_8X(platform.request("ttl", i)) self.submodules += phy rtio_channels.append(rtio.Channel.from_phy(phy)) phy = ttl_simple.Output(platform.request("user_led", 2)) self.submodules += phy rtio_channels.append(rtio.Channel.from_phy(phy)) self.add_constant("RTIO_REGULAR_TTL_COUNT", len(rtio_channels)) phy = ttl_simple.ClockGen(platform.request("ttl", 14)) self.submodules += phy rtio_channels.append(rtio.Channel.from_phy(phy)) self.add_constant("RTIO_DDS_CHANNEL", len(rtio_channels)) self.add_constant("DDS_CHANNEL_COUNT", 11) self.add_constant("DDS_AD9914") self.add_constant("DDS_ONEHOT_SEL") phy = dds.AD9914(platform.request("dds"), 11) self.submodules += phy rtio_channels.append(rtio.Channel.from_phy(phy, ofifo_depth=512, ififo_depth=4)) self.add_rtio(rtio_channels) default_subtarget = NIST_QC1