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zc706 gateware fixes:

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replaced crg cd_sys.clk with ps7.cd_sys.clk
restored gpio
removed mentions of i2c
user_sma_clock consumed by _RTIOCRG already
This commit is contained in:
mwojcik 2021-08-06 13:31:16 +02:00
parent d68cf7dd49
commit ae86bbb76e
1 changed files with 7 additions and 21 deletions
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28
src/gateware/zc706.py
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@ -11,6 +11,7 @@ from migen_axi.integration.soc_core import SoCCore
from migen_axi.platforms import zc706 from migen_axi.platforms import zc706
from misoc.interconnect.csr import * from misoc.interconnect.csr import *
from misoc.integration import cpu_interface from misoc.integration import cpu_interface
from misoc.cores import gpio
from artiq.gateware import rtio, nist_clock, nist_qc2 from artiq.gateware import rtio, nist_clock, nist_qc2
from artiq.gateware.rtio.phy import ttl_simple, ttl_serdes_7series, dds, spi2 from artiq.gateware.rtio.phy import ttl_simple, ttl_serdes_7series, dds, spi2
@ -329,12 +330,6 @@ class Master(ZC706):
self.config["HAS_SI5324"] = None self.config["HAS_SI5324"] = None
self.config["SI5324_AS_SYNTHESIZER"] = None self.config["SI5324_AS_SYNTHESIZER"] = None
user_sma_clock = platform.request("user_sma_clock")
self.comb += [
user_sma_clock.p.eq(ClockSignal("rtio_rx0")),
user_sma_clock.n.eq(ClockSignal("rtio"))
]
rtio_clk_period = 1e9/self.drtio_transceiver.rtio_clk_freq rtio_clk_period = 1e9/self.drtio_transceiver.rtio_clk_freq
# Constrain TX & RX timing for the first transceiver channel # Constrain TX & RX timing for the first transceiver channel
# (First channel acts as master for phase alignment for all channels' TX) # (First channel acts as master for phase alignment for all channels' TX)
@ -342,14 +337,14 @@ class Master(ZC706):
platform.add_period_constraint(gtx0.txoutclk, rtio_clk_period) platform.add_period_constraint(gtx0.txoutclk, rtio_clk_period)
platform.add_period_constraint(gtx0.rxoutclk, rtio_clk_period) platform.add_period_constraint(gtx0.rxoutclk, rtio_clk_period)
platform.add_false_path_constraints( platform.add_false_path_constraints(
self.crg.cd_sys.clk, self.ps7.cd_sys.clk,
gtx0.txoutclk, gtx0.rxoutclk) gtx0.txoutclk, gtx0.rxoutclk)
# Constrain RX timing for the each transceiver channel # Constrain RX timing for the each transceiver channel
# (Each channel performs single-lane phase alignment for RX) # (Each channel performs single-lane phase alignment for RX)
for gtx in self.drtio_transceiver.gtxs[1:]: for gtx in self.drtio_transceiver.gtxs[1:]:
platform.add_period_constraint(gtx.rxoutclk, rtio_clk_period) platform.add_period_constraint(gtx.rxoutclk, rtio_clk_period)
platform.add_false_path_constraints( platform.add_false_path_constraints(
self.crg.cd_sys.clk, gtx0.txoutclk, gtx.rxoutclk) self.ps7.cd_sys.clk, gtx0.txoutclk, gtx.rxoutclk)
rtio_channels = [] rtio_channels = []
for i in range(4): for i in range(4):
@ -442,22 +437,12 @@ class Satellite(ZC706):
ultrascale=False, ultrascale=False,
rtio_clk_freq=self.drtio_transceiver.rtio_clk_freq) rtio_clk_freq=self.drtio_transceiver.rtio_clk_freq)
platform.add_false_path_constraints( platform.add_false_path_constraints(
self.crg.cd_sys.clk, self.siphaser.mmcm_freerun_output) self.ps7.cd_sys.clk, self.siphaser.mmcm_freerun_output)
self.csr_devices.append("siphaser") self.csr_devices.append("siphaser")
self.submodules.si5324_rst_n = gpio.GPIOOut(platform.request("si5324").rst_n) self.submodules.si5324_rst_n = gpio.GPIOOut(platform.request("si5324").rst_n)
self.csr_devices.append("si5324_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["HAS_SI5324"] = None
user_sma_clock = platform.request("user_sma_clock")
self.comb += [
user_sma_clock.p.eq(ClockSignal("rtio_rx0")),
user_sma_clock.n.eq(ClockSignal("rtio"))
]
rtio_clk_period = 1e9/self.drtio_transceiver.rtio_clk_freq rtio_clk_period = 1e9/self.drtio_transceiver.rtio_clk_freq
# Constrain TX & RX timing for the first transceiver channel # Constrain TX & RX timing for the first transceiver channel
# (First channel acts as master for phase alignment for all channels' TX) # (First channel acts as master for phase alignment for all channels' TX)
@ -465,14 +450,14 @@ class Satellite(ZC706):
platform.add_period_constraint(gtx0.txoutclk, rtio_clk_period) platform.add_period_constraint(gtx0.txoutclk, rtio_clk_period)
platform.add_period_constraint(gtx0.rxoutclk, rtio_clk_period) platform.add_period_constraint(gtx0.rxoutclk, rtio_clk_period)
platform.add_false_path_constraints( platform.add_false_path_constraints(
self.crg.cd_sys.clk, self.ps7.cd_sys.clk,
gtx0.txoutclk, gtx0.rxoutclk) gtx0.txoutclk, gtx0.rxoutclk)
# Constrain RX timing for the each transceiver channel # Constrain RX timing for the each transceiver channel
# (Each channel performs single-lane phase alignment for RX) # (Each channel performs single-lane phase alignment for RX)
for gtx in self.drtio_transceiver.gtxs[1:]: for gtx in self.drtio_transceiver.gtxs[1:]:
platform.add_period_constraint(gtx.rxoutclk, rtio_clk_period) platform.add_period_constraint(gtx.rxoutclk, rtio_clk_period)
platform.add_false_path_constraints( platform.add_false_path_constraints(
self.crg.cd_sys.clk, gtx.rxoutclk) self.ps7.cd_sys.clk, gtx.rxoutclk)
rtio_channels = [] rtio_channels = []
for i in range(4): for i in range(4):
@ -501,6 +486,7 @@ class Satellite(ZC706):
self.submodules.rtio = rtio.KernelInitiator(self.rtio_tsc, now64=True) self.submodules.rtio = rtio.KernelInitiator(self.rtio_tsc, now64=True)
self.csr_devices.append("rtio") self.csr_devices.append("rtio")
self.submodules.local_io = SyncRTIO(self.rtio_tsc, rtio_channels)
self.submodules.cri_con = rtio.CRIInterconnectShared( self.submodules.cri_con = rtio.CRIInterconnectShared(
[self.drtiosat.cri], [self.drtiosat.cri],
[self.local_io.cri] + self.drtio_cri, [self.local_io.cri] + self.drtio_cri,