def __init__(self, **kwargs):
VirtualMiniSoC.__init__(self,
ethmac_nrxslots=4,
ethmac_ntxslots=4,
**kwargs)
AMPSoC.__init__(self)
add_identifier(self)
self.config["HAS_DDS"] = None
self.clock_domains.rtio = ClockDomain()
self.comb += self.rtio.clk.eq(ClockSignal("sys"))
self.submodules.rtio_tsc = rtio.TSC("async", glbl_fine_ts_width=3)
def add_rtio(self, top, rtio_channels):
#self.submodules.rtio_crg = _RTIOCRG(self.platform, self.crg.cd_sys.clk)
#self.csr_devices.append("rtio_crg")
#self.config["HAS_RTIO_CLOCK_SWITCH"] = None
top.submodules.rtio_tsc = rtio.TSC("sync", glbl_fine_ts_width=3)
top.submodules.rtio_core = rtio.Core(top.rtio_tsc,
rtio_channels,
lane_count=2)
#self.submodules.rtio_core = rtio.Core(rtio_channels)
top.csr_devices.append("rtio_core")
top.submodules.rtio = rtio.KernelInitiator(top.rtio_tsc)
#self.submodules.rtio_dma = ClockDomainsRenamer("sys_kernel")(
# rtio.DMA(self.get_native_sdram_if()))
#self.register_kernel_cpu_csrdevice("rtio")
#self.register_kernel_cpu_csrdevice("rtio_dma")
top.submodules.cri_con = rtio.CRIInterconnectShared(
[top.rtio.cri], #self.rtio_dma.cri],
[top.rtio_core.cri])
#self.register_kernel_cpu_csrdevice("cri_con")
top.submodules.rtio_moninj = rtio.MonInj(rtio_channels)
top.csr_devices.append("rtio_moninj")
def __init__(self, gateware_identifier_str=None, **kwargs):
MiniSoC.__init__(self,
cpu_type="vexriscv",
sdram_controller_type="minicon",
l2_size=128*1024,
integrated_sram_size=8192,
ethmac_nrxslots=4,
ethmac_ntxslots=4,
**kwargs)
AMPSoC.__init__(self)
add_identifier(self, gateware_identifier_str=gateware_identifier_str)
if isinstance(self.platform.toolchain, XilinxVivadoToolchain):
self.platform.toolchain.bitstream_commands.extend([
"set_property BITSTREAM.GENERAL.COMPRESS True [current_design]",
])
if isinstance(self.platform.toolchain, XilinxISEToolchain):
self.platform.toolchain.bitgen_opt += " -g compress"
platform = self.platform
platform.add_extension(_reprogrammed3v3_io)
platform.add_extension(_ams101_dac)
self.comb += platform.request("sfp_tx_disable_n_33").eq(1)
data_pads = [
platform.request("sfp"), platform.request("user_sma_mgt")
]
# 1000BASE_BX10 Ethernet compatible, 125MHz RTIO clock
self.submodules.drtio_transceiver = gtx_7series.GTX(
clock_pads=platform.request("si5324_clkout"),
pads=data_pads,
sys_clk_freq=self.clk_freq)
self.csr_devices.append("drtio_transceiver")
self.submodules.rtio_tsc = rtio.TSC("async", glbl_fine_ts_width=3)
drtio_csr_group = []
drtioaux_csr_group = []
drtioaux_memory_group = []
self.drtio_cri = []
for i in range(len(self.drtio_transceiver.channels)):
core_name = "drtio" + str(i)
coreaux_name = "drtioaux" + str(i)
memory_name = "drtioaux" + str(i) + "_mem"
drtio_csr_group.append(core_name)
drtioaux_csr_group.append(coreaux_name)
drtioaux_memory_group.append(memory_name)
cdr = ClockDomainsRenamer({"rtio_rx": "rtio_rx" + str(i)})
core = cdr(DRTIOMaster(
self.rtio_tsc, self.drtio_transceiver.channels[i]))
setattr(self.submodules, core_name, core)
self.drtio_cri.append(core.cri)
self.csr_devices.append(core_name)
coreaux = cdr(DRTIOAuxController(core.link_layer))
setattr(self.submodules, coreaux_name, coreaux)
self.csr_devices.append(coreaux_name)
memory_address = self.mem_map["drtioaux"] + 0x800*i
self.add_wb_slave(memory_address, 0x800,
coreaux.bus)
self.add_memory_region(memory_name, memory_address | self.shadow_base, 0x800)
self.config["HAS_DRTIO"] = None
self.config["HAS_DRTIO_ROUTING"] = None
self.add_csr_group("drtio", drtio_csr_group)
self.add_csr_group("drtioaux", drtioaux_csr_group)
self.add_memory_group("drtioaux_mem", drtioaux_memory_group)
self.config["RTIO_FREQUENCY"] = str(self.drtio_transceiver.rtio_clk_freq/1e6)
self.submodules.si5324_rst_n = gpio.GPIOOut(platform.request("si5324_33").rst_n)
self.csr_devices.append("si5324_rst_n")
i2c = self.platform.request("i2c")
self.submodules.i2c = gpio.GPIOTristate([i2c.scl, i2c.sda])
self.csr_devices.append("i2c")
self.config["I2C_BUS_COUNT"] = 1
self.config["HAS_SI5324"] = None
self.config["SI5324_AS_SYNTHESIZER"] = None
self.comb += [
platform.request("user_sma_clock_p").eq(ClockSignal("rtio_rx0")),
platform.request("user_sma_clock_n").eq(ClockSignal("rtio"))
]
rtio_clk_period = 1e9/self.drtio_transceiver.rtio_clk_freq
# Constrain TX & RX timing for the first transceiver channel
# (First channel acts as master for phase alignment for all channels' TX)
gtx0 = self.drtio_transceiver.gtxs[0]
platform.add_period_constraint(gtx0.txoutclk, rtio_clk_period)
platform.add_period_constraint(gtx0.rxoutclk, rtio_clk_period)
platform.add_false_path_constraints(
self.crg.cd_sys.clk,
gtx0.txoutclk, gtx0.rxoutclk)
# Constrain RX timing for the each transceiver channel
# (Each channel performs single-lane phase alignment for RX)
for gtx in self.drtio_transceiver.gtxs[1:]:
platform.add_period_constraint(gtx.rxoutclk, rtio_clk_period)
platform.add_false_path_constraints(
self.crg.cd_sys.clk, gtx0.txoutclk, gtx.rxoutclk)
self.submodules.rtio_crg = _RTIOClockMultiplier(self.drtio_transceiver.rtio_clk_freq)
self.csr_devices.append("rtio_crg")
fix_serdes_timing_path(platform)