mirror of https://github.com/m-labs/artiq.git
49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
from migen import *
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from artiq.coredevice.spi import SPI_XFER_ADDR, SPI_DATA_ADDR
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from artiq.coredevice.ad5360 import _AD5360_CMD_DATA, _AD5360_WRITE_CHANNEL
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class AD5360Monitor(Module):
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def __init__(self, spi_rtlink, ldac_rtlink=None, cs_no=0, cs_onehot=False, nchannels=32):
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self.probes = [Signal(16) for i in range(nchannels)]
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if ldac_rtlink is None:
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write_targets = self.probes
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else:
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write_targets = [Signal(16) for i in range(nchannels)]
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ldac_oif = ldac_rtlink.o
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if hasattr(ldac_oif, "address"):
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ttl_level_adr = ldac_oif.address == 0
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else:
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ttl_level_adr = 1
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self.sync.rio_phy += \
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If(ldac_oif.stb & ttl_level_adr & ~ldac_oif.data[0],
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[probe.eq(write_target) for probe, write_target in zip(self.probes, write_targets)]
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)
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spi_oif = spi_rtlink.o
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selected = Signal()
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if cs_onehot:
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self.sync.rio_phy += [
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If(spi_oif.stb & (spi_oif.address == SPI_XFER_ADDR),
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selected.eq(spi_oif.data[cs_no])
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)
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]
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else:
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self.sync.rio_phy += [
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If(spi_oif.stb & (spi_oif.address == SPI_XFER_ADDR),
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selected.eq(spi_oif.data[:16] == cs_no)
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)
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]
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writes = {(_AD5360_CMD_DATA | _AD5360_WRITE_CHANNEL(i)) >> 16: t.eq(spi_oif.data[8:24])
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for i, t in enumerate(write_targets)}
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self.sync.rio_phy += [
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If(spi_oif.stb & (spi_oif.address == SPI_DATA_ADDR),
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Case(spi_oif.data[24:], writes)
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)
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]
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