forked from M-Labs/artiq
coredevice/analyzer: add rtio_slack channel
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7475b3813e
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@ -245,17 +245,17 @@ class DDSHandler:
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self._decode_ad9914_write(message)
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def get_timescale(devices):
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timescale = None
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def get_ref_period(devices):
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ref_period = None
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for desc in devices.values():
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if isinstance(desc, dict) and desc["type"] == "local":
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if (desc["module"] == "artiq.coredevice.core"
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and desc["class"] == "Core"):
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if timescale is None:
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timescale = desc["arguments"]["ref_period"]*1e9
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if ref_period is None:
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ref_period = desc["arguments"]["ref_period"]
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else:
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return None # more than one core device found
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return timescale
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return ref_period
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def create_channel_handlers(vcd_manager, devices, log_channel,
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@ -291,15 +291,17 @@ def get_message_time(message):
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def decoded_dump_to_vcd(fileobj, devices, dump):
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vcd_manager = VCDManager(fileobj)
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timescale = get_timescale(devices)
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if timescale is not None:
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vcd_manager.set_timescale_ns(timescale)
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ref_period = get_ref_period(devices)
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if ref_period is not None:
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vcd_manager.set_timescale_ns(ref_period*1e9)
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else:
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logger.warning("unable to determine VCD timescale")
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logger.warning("unable to determine core device ref_period")
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ref_period = 1e-9 # guess
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channel_handlers = create_channel_handlers(
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vcd_manager, devices,
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dump.log_channel, dump.dds_channel, dump.dds_onehot_sel)
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slack = vcd_manager.get_channel("rtio_slack", 64)
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vcd_manager.set_time(0)
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messages = sorted(dump.messages, key=get_message_time)
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@ -310,3 +312,7 @@ def decoded_dump_to_vcd(fileobj, devices, dump):
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vcd_manager.set_time(
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get_message_time(message) - start_time)
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channel_handlers[message.channel].process_message(message)
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if (hasattr(message, "rtio_counter")
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and hasattr(message, "timestamp")):
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slack.set_value_double(
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(message.timestamp - message.rtio_counter)*ref_period)
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