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sma_spi: add demo target with SPI on four SMA

This commit is contained in:
Robert Jördens 2017-04-07 14:07:32 +02:00
parent f13f6eb7be
commit 2c7c6143ab

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#!/usr/bin/env python3
import argparse
from migen import *
from migen.build.generic_platform import *
from misoc.targets.kc705 import soc_kc705_args, soc_kc705_argdict
from misoc.integration.builder import builder_args, builder_argdict
from artiq.gateware.amp import build_artiq_soc
from artiq.gateware import rtio
from artiq.gateware.rtio.phy import ttl_simple, spi
from .kc705_dds import _NIST_Ions
_sma_spi = [
("sma_spi", 0,
Subsignal("clk", Pins("Y23")), # user_sma_gpio_p
Subsignal("cs_n", Pins("Y24")), # user_sma_gpio_n
Subsignal("mosi", Pins("L25")), # user_sma_clk_p
Subsignal("miso", Pins("K25")), # user_sma_clk_n
IOStandard("LVCMOS33")),
]
class SMA_SPI(_NIST_Ions):
"""
SPI on 4 SMA for PDQ2 test/demo.
"""
def __init__(self, cpu_type="or1k", **kwargs):
_NIST_Ions.__init__(self, cpu_type, **kwargs)
platform = self.platform
self.platform.add_extension(_sma_spi)
rtio_channels = []
phy = ttl_simple.Output(platform.request("user_led", 2))
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy))
ams101_dac = self.platform.request("ams101_dac", 0)
phy = ttl_simple.Output(ams101_dac.ldac)
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy))
phy = spi.SPIMaster(ams101_dac)
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(
phy, ofifo_depth=4, ififo_depth=4))
phy = spi.SPIMaster(self.platform.request("sma_spi"))
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(
phy, ofifo_depth=128, ififo_depth=128))
self.config["HAS_RTIO_LOG"] = None
self.config["RTIO_LOG_CHANNEL"] = len(rtio_channels)
rtio_channels.append(rtio.LogChannel())
self.add_rtio(rtio_channels)
def main():
parser = argparse.ArgumentParser(
description="ARTIQ device binary builder / "
"KC705 SMA SPI demo/test for PDQ2")
builder_args(parser)
soc_kc705_args(parser)
args = parser.parse_args()
soc = SMA_SPI(**soc_kc705_argdict(args))
build_artiq_soc(soc, builder_argdict(args))
if __name__ == "__main__":
main()