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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,206 @@ | ||
| # Copyright (C) 2020-2023 Analog Devices, Inc. | ||
| # | ||
| # SPDX short identifier: ADIBSD | ||
|
|
||
| from decimal import Decimal | ||
|
|
||
| import numpy as np | ||
| from adi.attribute import attribute | ||
| from adi.context_manager import context_manager | ||
| from adi.rx_tx import rx | ||
|
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||
|
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| class ad4858(rx, context_manager): | ||
|
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| """ AD4858 ADC """ | ||
|
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| _complex_data = False | ||
| channel = [] # type: ignore | ||
| _device_name = "" | ||
|
|
||
| def __init__(self, uri="", device_name=""): | ||
| """Constructor for ad4858 class.""" | ||
| context_manager.__init__(self, uri, self._device_name) | ||
|
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| compatible_parts = ["ad4858"] | ||
|
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| self._ctrl = None | ||
|
|
||
| if not device_name: | ||
| device_name = compatible_parts[0] | ||
| else: | ||
| if device_name not in compatible_parts: | ||
| raise Exception(f"Not a compatible device: {device_name}") | ||
|
|
||
| # Select the device matching device_name as working device | ||
| for device in self._ctx.devices: | ||
| if device.name == device_name: | ||
| self._ctrl = device | ||
| self._rxadc = device | ||
| break | ||
|
|
||
| if not self._ctrl: | ||
| raise Exception("Error in selecting matching device") | ||
|
|
||
| if not self._rxadc: | ||
| raise Exception("Error in selecting matching device") | ||
|
|
||
| for ch in self._ctrl.channels: | ||
| name = ch._id | ||
| self._rx_channel_names.append(name) | ||
| self.channel.append(self._channel(self._ctrl, name)) | ||
|
|
||
| rx.__init__(self) | ||
|
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||
| @property | ||
| def sampling_frequency(self): | ||
| """Get sampling frequency.""" | ||
| return self._get_iio_dev_attr("sampling_frequency") | ||
|
|
||
| @sampling_frequency.setter | ||
| def sampling_frequency(self, value): | ||
| """Set sampling frequency.""" | ||
| self._set_iio_dev_attr("sampling_frequency", value) | ||
|
|
||
| @property | ||
| def oversampling_ratio_avail(self): | ||
| """Get list of all available oversampling rates.""" | ||
| return self._get_iio_dev_attr_str("oversampling_ratio_available") | ||
|
|
||
| @property | ||
| def oversampling_ratio(self): | ||
| """Get oversampling ratio.""" | ||
| return self._get_iio_dev_attr_str("oversampling_ratio") | ||
|
|
||
| @oversampling_ratio.setter | ||
| def oversampling_ratio(self, value): | ||
| """Set oversampling ratio.""" | ||
| if value in self.oversampling_ratio_avail: | ||
| self._set_iio_dev_attr_str("oversampling_ratio", value) | ||
| else: | ||
| raise ValueError( | ||
| "Error: oversampling ratio not supported \nUse one of: " | ||
| + str(self.oversampling_ratio_avail) | ||
| ) | ||
|
|
||
| @property | ||
| def packet_format_avail(self): | ||
| """Get list of all available packet formats.""" | ||
| return self._get_iio_dev_attr_str("packet_format_available") | ||
|
|
||
| @property | ||
| def packet_format(self): | ||
| """Get packet format.""" | ||
| return self._get_iio_dev_attr_str("packet_format") | ||
|
|
||
| @packet_format.setter | ||
| def packet_format(self, value): | ||
| """Set packet format.""" | ||
| if value in self.packet_format_avail: | ||
| self._set_iio_dev_attr_str("packet_format", value) | ||
| else: | ||
| raise ValueError( | ||
| "Error: packet format not supported \nUse one of: " | ||
| + str(self.packet_format_avail) | ||
| ) | ||
|
|
||
| class _channel(attribute): | ||
|
|
||
| """ ad4858 channel """ | ||
|
|
||
| def __init__(self, ctrl, channel_name): | ||
| self.name = channel_name | ||
| self._ctrl = ctrl | ||
|
|
||
| @property | ||
| def raw(self): | ||
| """Get channel raw value.""" | ||
| return self._get_iio_attr(self.name, "raw", False) | ||
|
|
||
| @property | ||
| def scale(self): | ||
| """Get channel scale.""" | ||
| return self._get_iio_attr(self.name, "scale", False) | ||
|
|
||
| @scale.setter | ||
| def scale(self, value): | ||
| """Set channel scale.""" | ||
| self._set_iio_attr(self.name, "scale", False, Decimal(value).real) | ||
|
|
||
| @property | ||
| def offset(self): | ||
| """Get channel offset.""" | ||
| return self._get_iio_attr(self.name, "offset", False) | ||
|
|
||
| @offset.setter | ||
| def offset(self, value): | ||
| """Set channel offset.""" | ||
| self._set_iio_attr(self.name, "offset", False, value) | ||
|
|
||
| @property | ||
| def calibbias(self): | ||
| """Get calibration bias/offset value.""" | ||
| return self._get_iio_attr(self.name, "calibbias", False) | ||
|
|
||
| @calibbias.setter | ||
| def calibbias(self, value): | ||
| """Set channel calibration bias/offset.""" | ||
| self._set_iio_attr(self.name, "calibbias", False, value) | ||
|
|
||
| @property | ||
| def calibphase(self): | ||
| """Get calibration phase value.""" | ||
| return self._get_iio_attr(self.name, "calibphase", False) | ||
|
|
||
| @calibphase.setter | ||
| def calibphase(self, value): | ||
| """Set channel calibration phase.""" | ||
| self._set_iio_attr(self.name, "calibphase", False, value) | ||
|
|
||
| @property | ||
| def hardwaregain(self): | ||
| """Get calibration gain value.""" | ||
| return self._get_iio_attr(self.name, "hardwaregain", False) | ||
|
|
||
| @hardwaregain.setter | ||
| def hardwaregain(self, value): | ||
| """Set channel calibration gain.""" | ||
| self._set_iio_attr(self.name, "hardwaregain", False, value) | ||
|
|
||
| @property | ||
| def softspan_avail(self): | ||
| """Get list of all available softspans.""" | ||
| return self._get_iio_attr_str(self.name, "softspan_available", False) | ||
|
|
||
| @property | ||
| def softspan(self): | ||
| """Get softspan value.""" | ||
| return self._get_iio_attr_str(self.name, "softspan", False) | ||
|
|
||
| @softspan.setter | ||
| def softspan(self, value): | ||
| """Set softspan value.""" | ||
| if value in self.softspan_avail: | ||
| self._set_iio_attr(self.name, "softspan", False, value) | ||
| else: | ||
| raise ValueError( | ||
| "Error: softspan not supported \nUse one of: " | ||
| + str(self.softspan_avail) | ||
| ) | ||
|
|
||
| def to_volts(self, index, val): | ||
| """Converts raw value to SI.""" | ||
| _scale = self.channel[index].scale | ||
|
|
||
| ret = None | ||
|
|
||
| if isinstance(val, np.int32): | ||
| ret = val * _scale | ||
|
|
||
| if isinstance(val, np.ndarray): | ||
| ret = [x * _scale for x in val] | ||
|
|
||
| if ret is None: | ||
| raise Exception("Error in converting to actual voltage") | ||
|
|
||
| return ret |
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