def add_sdcard(self):
sdcard_pads = self.platform.request("sdcard")
if hasattr(sdcard_pads, "rst"):
self.comb += sdcard_pads.rst.eq(0)
self.submodules.sdclk = SDClockerS7(sys_clk_freq=self.sys_clk_freq)
self.submodules.sdphy = SDPHY(sdcard_pads, self.platform.device)
self.submodules.sdcore = SDCore(self.sdphy)
self.submodules.sdtimer = Timer()
self.add_csr("sdclk")
self.add_csr("sdphy")
self.add_csr("sdcore")
self.add_csr("sdtimer")
self.submodules.bist_generator = BISTBlockGenerator(random=True)
self.submodules.bist_checker = BISTBlockChecker(random=True)
self.add_csr("bist_generator")
self.add_csr("bist_checker")
self.comb += [
self.sdcore.source.connect(self.bist_checker.sink),
self.bist_generator.source.connect(self.sdcore.sink)
]
self.platform.add_period_constraint(self.sdclk.cd_sd.clk,
period_ns(self.sys_clk_freq))
self.platform.add_period_constraint(self.sdclk.cd_sd_fb.clk,
period_ns(self.sys_clk_freq))
self.platform.add_false_path_constraints(self.crg.cd_sys.clk,
self.sdclk.cd_sd.clk,
self.sdclk.cd_sd_fb.clk)
def __init__(self, platform):
self.submodules.crg = _CRG(platform, int(50e6))
# SRAM
self.submodules.sram = wishbone.SRAM(1024)
# SD Emulator
sdcard_pads = _sdemulator_pads()
self.submodules.sdemulator = ClockDomainsRenamer("sd")(
SDEmulator(platform, sdcard_pads))
# SD Core
self.submodules.sdphy = SDPHY(sdcard_pads, platform.device)
self.submodules.sdcore = SDCore(self.sdphy)
self.submodules.bist_generator = BISTBlockGenerator(random=False)
self.submodules.bist_checker = BISTBlockChecker(random=False)
self.comb += [
self.sdcore.source.connect(self.bist_checker.sink),
self.bist_generator.source.connect(self.sdcore.sink)
]
# Wishbone
self.bus = wishbone.Interface()
wb_masters = [
self.bus
]
wb_slaves = [
(mem_decoder(sram_base), self.sram.bus),
(mem_decoder(sdemulator_base), self.sdemulator.bus)
]
self.submodules.wb_decoder = wishbone.InterconnectShared(wb_masters, wb_slaves, register=True)
# Tester
self.submodules.sdtester = SDTester(self.sdcore, self.sdemulator, self.bist_generator, self.bist_checker, self.bus)
def __init__(self, with_cpu, with_emulator, with_analyzer):
platform = minispartan6.Platform(device="xc6slx25")
platform.add_extension(_sd_io)
clk_freq = int(50e6)
sd_freq = int(140e6)
SoCCore.__init__(self,
platform,
clk_freq=clk_freq,
cpu_type="lm32" if with_cpu else None,
csr_data_width=32,
with_uart=with_cpu,
with_timer=with_cpu,
ident="SDCard Test SoC",
ident_version=True,
integrated_rom_size=0x8000 if with_cpu else 0,
integrated_main_ram_size=0x8000 if with_cpu else 0)
self.submodules.crg = _CRG(platform, clk_freq)
# bridge
if not with_cpu:
self.add_cpu_or_bridge(
UARTWishboneBridge(platform.request("serial"),
clk_freq,
baudrate=115200))
self.add_wb_master(self.cpu_or_bridge.wishbone)
# emulator
if with_emulator:
sdcard_pads = _sdemulator_pads()
self.submodules.sdemulator = SDEmulator(platform, sdcard_pads)
else:
sdcard_pads = platform.request('sdcard')
# sd
self.submodules.sdclk = SDClockerS6()
self.submodules.sdphy = SDPHY(sdcard_pads, platform.device)
self.submodules.sdcore = SDCore(self.sdphy)
self.submodules.sdtimer = Timer()
self.submodules.bist_generator = BISTBlockGenerator(random=True)
self.submodules.bist_checker = BISTBlockChecker(random=True)
self.comb += [
self.sdcore.source.connect(self.bist_checker.sink),
self.bist_generator.source.connect(self.sdcore.sink)
]
self.platform.add_period_constraint(self.crg.cd_sys.clk,
1e9 / clk_freq)
self.platform.add_period_constraint(self.sdclk.cd_sd.clk,
1e9 / sd_freq)
self.crg.cd_sys.clk.attr.add("keep")
self.sdclk.cd_sd.clk.attr.add("keep")
self.platform.add_false_path_constraints(self.crg.cd_sys.clk,
self.sdclk.cd_sd.clk)
# led
led_counter = Signal(32)
self.sync.sd += led_counter.eq(led_counter + 1)
self.comb += platform.request("user_led", 0).eq(led_counter[26])
# analyzer
if with_analyzer:
analyzer_signals = [
self.sdphy.sdpads, self.sdphy.cmdw.sink, self.sdphy.cmdr.sink,
self.sdphy.cmdr.source, self.sdphy.dataw.sink,
self.sdphy.datar.sink, self.sdphy.datar.source
]
self.submodules.analyzer = LiteScopeAnalyzer(analyzer_signals,
2048,
cd="sd",
cd_ratio=4)
def __init__(self, platform,
with_sdram=True,
with_ethernet=False,
with_etherbone=True,
with_sdcard=True,
with_pcie=False,
with_hdmi_in0=False, with_hdmi_out0=False,
with_hdmi_in1=False, with_hdmi_out1=False,
with_interboard_communication=False):
assert not (with_pcie and with_interboard_communication)
sys_clk_freq = int(100e6)
sd_freq = int(100e6)
SoCSDRAM.__init__(self, platform, sys_clk_freq,
#cpu_type="vexriscv", l2_size=32,
cpu_type=None, l2_size=32,
#csr_data_width=8, csr_address_width=14,
csr_data_width=32, csr_address_width=14,
integrated_rom_size=0x8000,
integrated_sram_size=0x4000,
integrated_main_ram_size=0x8000 if not with_sdram else 0,
ident="NeTV2 LiteX Test SoC", ident_version=True,
reserve_nmi_interrupt=False)
# crg
self.submodules.crg = CRG(platform, sys_clk_freq)
# dnax
self.submodules.dna = dna.DNA()
# xadc
self.submodules.xadc = xadc.XADC()
# icap
self.submodules.icap = ICAP(platform)
# flash
self.submodules.flash = Flash(platform.request("flash"), div=math.ceil(sys_clk_freq/25e6))
# sdram
if with_sdram:
self.submodules.ddrphy = a7ddrphy.A7DDRPHY(platform.request("ddram"),
sys_clk_freq=sys_clk_freq, iodelay_clk_freq=200e6)
sdram_module = MT41J128M16(sys_clk_freq, "1:4")
self.register_sdram(self.ddrphy,
sdram_module.geom_settings,
sdram_module.timing_settings,
controller_settings=ControllerSettings(with_bandwidth=True,
cmd_buffer_depth=8,
with_refresh=True))
# ethernet
if with_ethernet:
self.submodules.ethphy = LiteEthPHYRMII(self.platform.request("eth_clocks"),
self.platform.request("eth"))
self.submodules.ethmac = LiteEthMAC(phy=self.ethphy, dw=32, interface="wishbone")
self.add_wb_slave(mem_decoder(self.mem_map["ethmac"]), self.ethmac.bus)
self.add_memory_region("ethmac", self.mem_map["ethmac"] | self.shadow_base, 0x2000)
self.crg.cd_eth.clk.attr.add("keep")
self.platform.add_false_path_constraints(
self.crg.cd_sys.clk,
self.crg.cd_eth.clk)
# etherbone
if with_etherbone:
self.submodules.ethphy = LiteEthPHYRMII(self.platform.request("eth_clocks"), self.platform.request("eth"))
self.submodules.ethcore = LiteEthUDPIPCore(self.ethphy, 0x10e2d5000000, convert_ip("192.168.1.50"), sys_clk_freq)
self.add_cpu(LiteEthEtherbone(self.ethcore.udp, 1234, mode="master"))
self.add_wb_master(self.cpu.wishbone.bus)
#self.submodules.etherbone = LiteEthEtherbone(self.ethcore.udp, 1234, mode="master")
#self.add_wb_master(self.etherbone.wishbone.bus)
self.crg.cd_eth.clk.attr.add("keep")
self.platform.add_false_path_constraints(
self.crg.cd_sys.clk,
self.crg.cd_eth.clk)
# sdcard
self.submodules.sdclk = SDClockerS7()
self.submodules.sdphy = SDPHY(platform.request("sdcard"), platform.device)
self.submodules.sdcore = SDCore(self.sdphy)
self.submodules.sdtimer = Timer()
self.submodules.bist_generator = BISTBlockGenerator(random=True)
self.submodules.bist_checker = BISTBlockChecker(random=True)
self.comb += [
self.sdcore.source.connect(self.bist_checker.sink),
self.bist_generator.source.connect(self.sdcore.sink)
]
self.platform.add_period_constraint(self.crg.cd_sys.clk, 1e9/sys_clk_freq)
self.platform.add_period_constraint(self.sdclk.cd_sd.clk, 1e9/sd_freq)
self.platform.add_period_constraint(self.sdclk.cd_sd_fb.clk, 1e9/sd_freq)
self.crg.cd_sys.clk.attr.add("keep")
self.sdclk.cd_sd.clk.attr.add("keep")
self.sdclk.cd_sd_fb.clk.attr.add("keep")
self.platform.add_false_path_constraints(
self.crg.cd_sys.clk,
self.sdclk.cd_sd.clk,
self.sdclk.cd_sd_fb.clk)
# pcie
if with_pcie:
# pcie phy
self.submodules.pcie_phy = S7PCIEPHY(platform, platform.request("pcie_x2"))
platform.add_false_path_constraints(
self.crg.cd_sys.clk,
self.pcie_phy.cd_pcie.clk)
# pcie endpoint
self.submodules.pcie_endpoint = LitePCIeEndpoint(self.pcie_phy, with_reordering=True)
# pcie wishbone bridge
self.submodules.pcie_bridge = LitePCIeWishboneBridge(self.pcie_endpoint, lambda a: 1, shadow_base=0x80000000)
self.add_wb_master(self.pcie_bridge.wishbone)
# pcie dma
self.submodules.pcie_dma0 = LitePCIeDMA(self.pcie_phy, self.pcie_endpoint, with_loopback=True)
# pcie msi
self.submodules.pcie_msi = LitePCIeMSI()
self.comb += self.pcie_msi.source.connect(self.pcie_phy.msi)
self.interrupts = {
"PCIE_DMA0_WRITER": self.pcie_dma0.writer.irq,
"PCIE_DMA0_READER": self.pcie_dma0.reader.irq
}
for i, (k, v) in enumerate(sorted(self.interrupts.items())):
self.comb += self.pcie_msi.irqs[i].eq(v)
self.add_constant(k + "_INTERRUPT", i)
# interboard communication
if with_interboard_communication:
self.clock_domains.cd_refclk = ClockDomain()
self.submodules.refclk_pll = refclk_pll = S7PLL()
refclk_pll.register_clkin(platform.lookup_request("clk50"), 50e6)
refclk_pll.create_clkout(self.cd_refclk, 125e6)
platform.add_platform_command("set_property SEVERITY {{Warning}} [get_drc_checks REQP-49]")
# qpll
qpll = GTPQuadPLL(ClockSignal("refclk"), 125e6, 1.25e9)
print(qpll)
self.submodules += qpll
# gtp
gtp = GTP(qpll,
platform.request("interboard_comm_tx"),
platform.request("interboard_comm_rx"),
sys_clk_freq,
clock_aligner=True, internal_loopback=False)
self.submodules += gtp
counter = Signal(32)
self.sync.tx += counter.eq(counter + 1)
# send counter to other-board
self.comb += [
gtp.encoder.k[0].eq(1),
gtp.encoder.d[0].eq((5 << 5) | 28),
gtp.encoder.k[1].eq(0),
gtp.encoder.d[1].eq(counter[26:])
]
# receive counter and display it on leds
self.comb += [
platform.request("user_led", 3).eq(gtp.rx_ready),
platform.request("user_led", 4).eq(gtp.decoders[1].d[0]),
platform.request("user_led", 5).eq(gtp.decoders[1].d[1])
]
gtp.cd_tx.clk.attr.add("keep")
gtp.cd_rx.clk.attr.add("keep")
platform.add_period_constraint(gtp.cd_tx.clk, 1e9/gtp.tx_clk_freq)
platform.add_period_constraint(gtp.cd_rx.clk, 1e9/gtp.tx_clk_freq)
self.platform.add_false_path_constraints(
self.crg.cd_sys.clk,
gtp.cd_tx.clk,
gtp.cd_rx.clk)
# hdmi in 0
if with_hdmi_in0:
hdmi_in0_pads = platform.request("hdmi_in", 0)
self.submodules.hdmi_in0_freq = FreqMeter(period=sys_clk_freq)
self.submodules.hdmi_in0 = HDMIIn(
hdmi_in0_pads,
self.sdram.crossbar.get_port(mode="write"),
fifo_depth=512,
device="xc7",
split_mmcm=True)
self.comb += self.hdmi_in0_freq.clk.eq(self.hdmi_in0.clocking.cd_pix.clk),
for clk in [self.hdmi_in0.clocking.cd_pix.clk,
self.hdmi_in0.clocking.cd_pix1p25x.clk,
self.hdmi_in0.clocking.cd_pix5x.clk]:
self.platform.add_false_path_constraints(self.crg.cd_sys.clk, clk)
self.platform.add_period_constraint(platform.lookup_request("hdmi_in", 0).clk_p, period_ns(148.5e6))
# hdmi out 0
if with_hdmi_out0:
hdmi_out0_dram_port = self.sdram.crossbar.get_port(mode="read", dw=16, cd="hdmi_out0_pix", reverse=True)
self.submodules.hdmi_out0 = VideoOut(
platform.device,
platform.request("hdmi_out", 0),
hdmi_out0_dram_port,
"ycbcr422",
fifo_depth=4096)
for clk in [self.hdmi_out0.driver.clocking.cd_pix.clk,
self.hdmi_out0.driver.clocking.cd_pix5x.clk]:
self.platform.add_false_path_constraints(self.crg.cd_sys.clk, clk)
# hdmi in 1
if with_hdmi_in1:
hdmi_in1_pads = platform.request("hdmi_in", 1)
self.submodules.hdmi_in1_freq = FreqMeter(period=sys_clk_freq)
self.submodules.hdmi_in1 = HDMIIn(
hdmi_in1_pads,
self.sdram.crossbar.get_port(mode="write"),
fifo_depth=512,
device="xc7",
split_mmcm=True)
self.comb += self.hdmi_in1_freq.clk.eq(self.hdmi_in1.clocking.cd_pix.clk),
for clk in [self.hdmi_in1.clocking.cd_pix.clk,
self.hdmi_in1.clocking.cd_pix1p25x.clk,
self.hdmi_in1.clocking.cd_pix5x.clk]:
self.platform.add_false_path_constraints(self.crg.cd_sys.clk, clk)
self.platform.add_period_constraint(platform.lookup_request("hdmi_in", 1).clk_p, period_ns(148.5e6))
# hdmi out 1
if with_hdmi_out1:
hdmi_out1_dram_port = self.sdram.crossbar.get_port(mode="read", dw=16, cd="hdmi_out1_pix", reverse=True)
self.submodules.hdmi_out1 = VideoOut(
platform.device,
platform.request("hdmi_out", 1),
hdmi_out1_dram_port,
"ycbcr422",
fifo_depth=4096)
for clk in [self.hdmi_out1.driver.clocking.cd_pix.clk,
self.hdmi_out1.driver.clocking.cd_pix5x.clk]:
self.platform.add_false_path_constraints(self.crg.cd_sys.clk, clk)
# led blinking (sys)
sys_counter = Signal(32)
self.sync.sys += sys_counter.eq(sys_counter + 1)
self.comb += platform.request("user_led", 0).eq(sys_counter[26])
# led blinking (pcie)
if with_pcie:
pcie_counter = Signal(32)
self.sync.pcie += pcie_counter.eq(pcie_counter + 1)
self.comb += platform.request("user_led", 1).eq(pcie_counter[26])
# led blinking (sdcard)
if with_sdcard:
sd_counter = Signal(32)
self.sync.sd += sd_counter.eq(sd_counter + 1)
self.comb += platform.request("user_led", 1).eq(sd_counter[26])
def __init__(self, with_cpu, with_emulator, with_analyzer):
platform = nexys4ddr.Platform()
sys_clk_freq = int(100e6)
sd_clk_freq = int(100e6)
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self,
platform,
clk_freq=sys_clk_freq,
cpu_type="vexriscv" if with_cpu else None,
csr_data_width=32,
with_uart=with_cpu,
with_timer=with_cpu,
ident="SDCard Test SoC",
ident_version=True,
integrated_rom_size=0x8000 if with_cpu else 0,
integrated_main_ram_size=0x8000 if with_cpu else 0)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# Serial bridge (optional) -----------------------------------------------------------------
if not with_cpu:
self.submodules.bridge = UARTWishboneBridge(
platform.request("serial"), sys_clk_freq)
self.add_wb_master(self.bridge.wishbone)
# SDCard Emulator (optional) ---------------------------------------------------------------
if with_emulator:
from litesdcard.emulator import SDEmulator, _sdemulator_pads
sdcard_pads = _sdemulator_pads()
self.submodules.sdemulator = SDEmulator(platform, sdcard_pads)
self.add_csr("sdemulator")
else:
sdcard_pads = platform.request('sdcard')
# SDCard -----------------------------------------------------------------------------------
self.comb += sdcard_pads.rst.eq(0)
self.submodules.sdclk = SDClockerS7()
self.submodules.sdphy = SDPHY(sdcard_pads, platform.device)
self.submodules.sdcore = SDCore(self.sdphy)
self.submodules.sdtimer = Timer()
self.add_csr("sdclk")
self.add_csr("sdphy")
self.add_csr("sdcore")
self.add_csr("sdtimer")
self.submodules.bist_generator = BISTBlockGenerator(random=True)
self.submodules.bist_checker = BISTBlockChecker(random=True)
self.add_csr("bist_generator")
self.add_csr("bist_checker")
self.comb += [
self.sdcore.source.connect(self.bist_checker.sink),
self.bist_generator.source.connect(self.sdcore.sink)
]
self.platform.add_period_constraint(self.sdclk.cd_sd.clk,
1e9 / sd_clk_freq)
self.platform.add_period_constraint(self.sdclk.cd_sd_fb.clk,
1e9 / sd_clk_freq)
self.platform.add_false_path_constraints(self.crg.cd_sys.clk,
self.sdclk.cd_sd.clk,
self.sdclk.cd_sd_fb.clk)
# Led --------------------------------------------------------------------------------------
led_counter = Signal(32)
self.sync.sd += led_counter.eq(led_counter + 1)
self.comb += platform.request("user_led", 0).eq(led_counter[26])
# Analyzer (optional) ----------------------------------------------------------------------
if with_analyzer:
from litescope import LiteScopeAnalyzer
analyzer_signals = [
self.sdphy.sdpads, self.sdphy.cmdw.sink, self.sdphy.cmdr.sink,
self.sdphy.cmdr.source, self.sdphy.dataw.sink,
self.sdphy.datar.sink, self.sdphy.datar.source
]
self.submodules.analyzer = LiteScopeAnalyzer(
analyzer_signals,
2048,
clock_domain="sd",
csr_csv="../test/analyzer.csv")
self.add_csr("analyzer")
def add_a7_sdcard(self,
sd_card_freq,
memory_size=512,
memory_width=32):
sdcard_pads = self.platform.request("sdcard")
self.cd_mmcm_clkout[0].name = "sd"
self.mmcm.clock_domains.cd_sd_fb = self.cd_sd_fb = ClockDomain()
self.submodules.sdphy = SDPHY(sdcard_pads, self.platform.device)
self.add_csr("sdphy")
self.submodules.sdcore = SDCore(self.sdphy)
self.add_csr("sdcore")
self.submodules.sdtimer = Timer()
self.add_csr("sdtimer")
# SD Card data reader
sdread_mem = Memory(memory_width, memory_size // 4)
sdread_sram = FullMemoryWE()(wishbone.SRAM(sdread_mem,
read_only=True))
self.submodules += sdread_sram
self.add_wb_slave(self.mem_map["sdread"], sdread_sram.bus,
memory_size)
self.add_memory_region("sdread", self.mem_map["sdread"],
memory_size)
sdread_port = sdread_sram.mem.get_port(write_capable=True)
self.specials += sdread_port
self.submodules.sddatareader = SDDataReader(
port=sdread_port, endianness=self.cpu.endianness)
self.add_csr("sddatareader")
self.comb += self.sdcore.source.connect(self.sddatareader.sink),
# SD Card data writer
sdwrite_mem = Memory(memory_width, memory_size // 4)
sdwrite_sram = FullMemoryWE()(wishbone.SRAM(sdwrite_mem,
read_only=False))
self.submodules += sdwrite_sram
self.add_wb_slave(self.mem_map["sdwrite"], sdwrite_sram.bus,
memory_size)
self.add_memory_region("sdwrite", self.mem_map["sdwrite"],
memory_size)
sdwrite_port = sdwrite_sram.mem.get_port(write_capable=False,
async_read=True,
mode=READ_FIRST)
self.specials += sdwrite_port
self.submodules.sddatawriter = SDDataWriter(
port=sdwrite_port, endianness=self.cpu.endianness)
self.add_csr("sddatawriter")
self.comb += self.sddatawriter.source.connect(self.sdcore.sink),
self.platform.add_period_constraint(self.cd_mmcm_clkout[0].clk,
1e9 / sd_card_freq)
self.cd_mmcm_clkout[0].clk.attr.add("keep")
self.platform.add_false_path_constraints(
self.cd_mmcm_clkout[0].clk)