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