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)
def __init__(self,
platform,
cpu_type="or1k",
ramcon_type="minicon",
with_test_gen=False,
**kwargs):
BaseSoC.__init__(self,
platform,
cpu_type=cpu_type,
ramcon_type=ramcon_type,
**kwargs)
platform.add_extension(_tester_io)
self.submodules.leds = gpio.GPIOOut(
Cat(platform.request("user_led", 0),
platform.request("user_led", 1)))
fud = Signal()
self.comb += [
platform.request("ttl_l_tx_en").eq(1),
platform.request("ttl_h_tx_en").eq(1)
]
rtio_ins = [platform.request("pmt") for i in range(2)]
rtio_outs = [platform.request("ttl", i) for i in range(6)] + [fud]
self.submodules.rtiocrg = _RTIOMiniCRG(platform)
self.submodules.rtiophy = rtio.phy.SimplePHY(
rtio_ins + rtio_outs, output_only_pads=set(rtio_outs))
self.submodules.rtio = rtio.RTIO(self.rtiophy,
clk_freq=125000000,
ififo_depth=512)
rtio_csrs = self.rtio.get_csrs()
self.submodules.rtiowb = wbgen.Bank(rtio_csrs)
self.add_wb_slave(lambda a: a[26:29] == 2, self.rtiowb.bus)
self.add_cpu_csr_region("rtio", 0xa0000000, 32, rtio_csrs)
if with_test_gen:
self.submodules.test_gen = _TestGen(platform.request("ttl", 8))
dds_pads = platform.request("dds")
self.submodules.dds = ad9858.AD9858(dds_pads)
self.add_wb_slave(lambda a: a[26:29] == 3, self.dds.bus)
self.comb += dds_pads.fud_n.eq(~fud)
def __init__(self, platform, cpu_type="or1k", **kwargs):
BaseSoC.__init__(self,
platform,
cpu_type=cpu_type,
sdram_controller_settings=MiniconSettings(l2_size=64 *
1024),
with_timer=False,
**kwargs)
AMPSoC.__init__(self)
platform.toolchain.ise_commands += """
trce -v 12 -fastpaths -tsi {build_name}.tsi -o {build_name}.twr {build_name}.ncd {build_name}.pcf
"""
platform.add_extension(nist_qc1.papilio_adapter_io)
self.submodules.leds = gpio.GPIOOut(
Cat(
platform.request("user_led", 0),
platform.request("user_led", 1),
platform.request("user_led", 2),
platform.request("user_led", 3),
))
self.comb += [
platform.request("ttl_l_tx_en").eq(1),
platform.request("ttl_h_tx_en").eq(1)
]
self.submodules.rtio_crg = _RTIOCRG(platform, self.clk_freq)
# RTIO channels
rtio_channels = []
# pmt1 can run on a 8x serdes if pmt0 is not used
for i in range(2):
phy = ttl_serdes_spartan6.Inout_4X(platform.request("pmt", i),
self.rtio_crg.rtiox4_stb)
self.submodules += phy
rtio_channels.append(
rtio.Channel.from_phy(phy, ififo_depth=512, ofifo_depth=4))
# ttl2 can run on a 8x serdes if xtrig is not used
for i in range(15):
if i in (0, 1):
phy = ttl_serdes_spartan6.Output_4X(platform.request("ttl", i),
self.rtio_crg.rtiox4_stb)
elif i in (2, ):
phy = ttl_serdes_spartan6.Output_8X(platform.request("ttl", i),
self.rtio_crg.rtiox8_stb)
else:
phy = ttl_simple.Output(platform.request("ttl", i))
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy, ofifo_depth=256))
phy = ttl_simple.Output(platform.request("ext_led", 0))
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy, ofifo_depth=4))
phy = ttl_simple.Output(platform.request("user_led", 4))
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy, ofifo_depth=4))
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")
dds_pins = platform.request("dds")
self.comb += dds_pins.p.eq(0)
phy = dds.AD9858(dds_pins, 8)
self.submodules += phy
rtio_channels.append(
rtio.Channel.from_phy(phy, ofifo_depth=512, ififo_depth=4))
# RTIO core
self.submodules.rtio = rtio.RTIO(rtio_channels)
self.add_constant("RTIO_FINE_TS_WIDTH", self.rtio.fine_ts_width)
self.add_constant("DDS_RTIO_CLK_RATIO", 8 >> self.rtio.fine_ts_width)
self.submodules.rtio_moninj = rtio.MonInj(rtio_channels)
# CPU connections
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)