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pipistrello: make pmod extension header, cleanup

This commit is contained in:
Robert Jördens 2016-03-08 17:07:44 +01:00
parent a8fe3f50c3
commit 0d431cb019
1 changed files with 41 additions and 21 deletions

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@ -9,11 +9,10 @@ from fractions import Fraction
from migen import *
from migen.genlib.resetsync import AsyncResetSynchronizer
from migen.genlib.cdc import MultiReg
from migen.build.generic_platform import *
from misoc.interconnect.csr import *
from misoc.interconnect import wishbone
from misoc.cores import gpio
from misoc.integration.soc_core import mem_decoder
from misoc.targets.pipistrello import (BaseSoC, soc_pipistrello_args,
soc_pipistrello_argdict)
from misoc.integration.builder import builder_args, builder_argdict
@ -24,6 +23,28 @@ from artiq.gateware.rtio.phy import ttl_simple, ttl_serdes_spartan6, dds, spi
from artiq import __version__ as artiq_version
_pmod_spi = [
("pmod_spi", 0,
Subsignal("cs_n", Pins("PMOD:0")),
Subsignal("mosi", Pins("PMOD:1")),
Subsignal("miso", Pins("PMOD:2")),
Subsignal("clk", Pins("PMOD:3")),
IOStandard("LVTTL")
),
("pmod_extended_spi", 0,
Subsignal("cs_n", Pins("PMOD:0")),
Subsignal("mosi", Pins("PMOD:1")),
Subsignal("miso", Pins("PMOD:2")),
Subsignal("clk", Pins("PMOD:3")),
Subsignal("int", Pins("PMOD:4")),
Subsignal("rst", Pins("PMOD:5")),
Subsignal("d0", Pins("PMOD:6")),
Subsignal("d1", Pins("PMOD:7")),
IOStandard("LVTTL")
),
]
class _RTIOCRG(Module, AutoCSR):
def __init__(self, platform, clk_freq):
self._clock_sel = CSRStorage()
@ -88,7 +109,8 @@ class _RTIOCRG(Module, AutoCSR):
# ISE infers correct period constraints for cd_rtio.clk from
# the internal clock. The first two TIGs target just the BUFGMUX.
platform.add_platform_command("""
platform.add_platform_command(
"""
NET "sys_clk" TNM_NET = "GRPsys_clk";
NET "{ext_clk}" TNM_NET = "GRPext_clk";
TIMESPEC "TSfix_ise1" = FROM "GRPsys_clk" TO "GRPext_clk" TIG;
@ -97,7 +119,8 @@ TIMESPEC "TSfix_ise2" = FROM "GRPsys_clk" TO "GRPint_clk" TIG;
NET "{rtio_clk}" TNM_NET = "GRPrtio_clk";
TIMESPEC "TSfix_ise3" = FROM "GRPrtio_clk" TO "GRPsys_clk" TIG;
TIMESPEC "TSfix_ise4" = FROM "GRPsys_clk" TO "GRPrtio_clk" TIG;
""", ext_clk=rtio_external_clk, int_clk=rtio_internal_clk,
""",
ext_clk=rtio_external_clk, int_clk=rtio_internal_clk,
rtio_clk=self.cd_rtio.clk)
@ -134,6 +157,7 @@ class NIST_QC1(BaseSoC, AMPSoC):
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)
platform.add_extension(_pmod_spi)
self.submodules.leds = gpio.GPIOOut(platform.request("user_led", 4))
@ -177,13 +201,14 @@ trce -v 12 -fastpaths -tsi {build_name}.tsi -o {build_name}.twr {build_name}.ncd
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy, ofifo_depth=4))
pmod = self.platform.request("pmod", 0)
spi_pins = self.platform.request("pmod_extended_spi", 0)
for i in range(4, 8):
phy = ttl_simple.Inout(pmod.d[i])
for i, p in enumerate((spi_pins.int, spi_pins.rst,
spi_pins.d0, spi_pins.d1)):
phy = ttl_simple.Inout(p)
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy, ififo_depth=128,
ofifo_depth=128))
rtio_channels.append(rtio.Channel.from_phy(phy, ififo_depth=4,
ofifo_depth=4))
self.config["RTIO_REGULAR_TTL_COUNT"] = len(rtio_channels)
@ -191,16 +216,11 @@ trce -v 12 -fastpaths -tsi {build_name}.tsi -o {build_name}.twr {build_name}.ncd
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy))
spi_pins = Module()
spi_pins.cs_n = pmod.d[0]
spi_pins.mosi = pmod.d[1]
spi_pins.miso = pmod.d[2]
spi_pins.clk = pmod.d[3]
phy = spi.SPIMaster(spi_pins)
self.submodules += phy
self.config["RTIO_FIRST_SPI_CHANNEL"] = len(rtio_channels)
rtio_channels.append(rtio.Channel.from_phy(
phy, ofifo_depth=128, ififo_depth=128))
phy, ofifo_depth=64, ififo_depth=64))
self.config["RTIO_DDS_CHANNEL"] = len(rtio_channels)
self.config["DDS_CHANNEL_COUNT"] = 8
@ -222,8 +242,8 @@ trce -v 12 -fastpaths -tsi {build_name}.tsi -o {build_name}.twr {build_name}.ncd
self.config["RTIO_FINE_TS_WIDTH"] = self.rtio.fine_ts_width
self.config["DDS_RTIO_CLK_RATIO"] = 8 >> self.rtio.fine_ts_width
self.submodules.rtio_moninj = rtio.MonInj(rtio_channels)
self.submodules.rtio_analyzer = rtio.Analyzer(self.rtio,
self.get_native_sdram_if())
self.submodules.rtio_analyzer = rtio.Analyzer(
self.rtio, self.get_native_sdram_if())
def main():