Recording data to disk - Revision history

Riemerg: /* Examining a non-rolling .csv file data using Excel */

2019-01-22T19:48:59Z

Examining a non-rolling .csv file data using Excel

← Older revision		Revision as of 19:48, 22 January 2019
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	*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns. Eg, the RAW channels show the raw data the way it comes from the ADC inside the smartscope, so without any kind of filtering or compensation applied to them.		*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns. Eg, the RAW channels show the raw data the way it comes from the ADC inside the smartscope, so without any kind of filtering or compensation applied to them.
	The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.		The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.
	<br><br>'''Note:''' Because of USB bandwidth and disk limitations, it is not possible to record all data to disk. Instead, scopes record short chunks of data, called Acquisitions in the text above. In case of the SmartScope these acquisitions contain 2048 samples, and each acquisition is presented as a separate column. It is important to understand that 2 ~~chunks of data~~ are not consecutive to each other: there is data between them which was not recorded. In case you need consecutive data, switch to Rolling mode instead.		<br><br>'''Note:''' Because of USB bandwidth and disk limitations, it is not possible to record all data to disk. Instead, scopes record short chunks of data, called Acquisitions in the text above. In case of the SmartScope these acquisitions contain 2048 samples, and each acquisition is presented as a separate column. It is important to understand that 2 acquisitions are not consecutive to each other: there is data between them which was not recorded. In case you need consecutive data, switch to Rolling mode instead.
	<br>[[File:csvNonRolling.png]]		<br>[[File:csvNonRolling.png]]

Riemerg: /* Examining a non-rolling .csv file data using Excel */

2019-01-22T19:47:07Z

Examining a non-rolling .csv file data using Excel

← Older revision		Revision as of 19:47, 22 January 2019
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	*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns. Eg, the RAW channels show the raw data the way it comes from the ADC inside the smartscope, so without any kind of filtering or compensation applied to them.		*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns. Eg, the RAW channels show the raw data the way it comes from the ADC inside the smartscope, so without any kind of filtering or compensation applied to them.
	The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.		The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.
	<br><br>'''Note:''' Because of USB bandwidth and disk limitations, it is not possible to record all data to disk. Instead, scopes record short chunks of data, in case of the SmartScope these ~~chunks~~ contain 2048 samples. It is important to understand that 2 chunks of data are not consecutive to each other: there is data between them which was not recorded. In case you need consecutive data, switch to Rolling mode instead.		<br><br>'''Note:''' Because of USB bandwidth and disk limitations, it is not possible to record all data to disk. Instead, scopes record short chunks of data, called Acquisitions in the text above. In case of the SmartScope these acquisitions contain 2048 samples, and each acquisition is presented as a separate column. It is important to understand that 2 chunks of data are not consecutive to each other: there is data between them which was not recorded. In case you need consecutive data, switch to Rolling mode instead.
	<br>[[File:csvNonRolling.png]]		<br>[[File:csvNonRolling.png]]

Riemerg: /* Examining a non-rolling .csv file data using Excel */

2019-01-22T19:45:53Z

Examining a non-rolling .csv file data using Excel

← Older revision		Revision as of 19:45, 22 January 2019
Line 62:		Line 62:
	*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns. Eg, the RAW channels show the raw data the way it comes from the ADC inside the smartscope, so without any kind of filtering or compensation applied to them.		*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns. Eg, the RAW channels show the raw data the way it comes from the ADC inside the smartscope, so without any kind of filtering or compensation applied to them.
	The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.		The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.
	<br>'''Note:''' Because of USB bandwidth and disk limitations, it is not possible to record all data to disk. Instead, scopes record short chunks of data, in case of the SmartScope these chunks contain 2048 samples. It is important to understand that 2 chunks of data are not consecutive to each other: there is data between them which was not recorded. In case you need consecutive data, switch to Rolling mode instead.		<br><br>'''Note:''' Because of USB bandwidth and disk limitations, it is not possible to record all data to disk. Instead, scopes record short chunks of data, in case of the SmartScope these chunks contain 2048 samples. It is important to understand that 2 chunks of data are not consecutive to each other: there is data between them which was not recorded. In case you need consecutive data, switch to Rolling mode instead.
	<br>[[File:csvNonRolling.png]]		<br>[[File:csvNonRolling.png]]

Riemerg: /* Examining a non-rolling .csv file data using Excel */

2019-01-22T19:45:38Z

Examining a non-rolling .csv file data using Excel

← Older revision		Revision as of 19:45, 22 January 2019
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	*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns. Eg, the RAW channels show the raw data the way it comes from the ADC inside the smartscope, so without any kind of filtering or compensation applied to them.		*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns. Eg, the RAW channels show the raw data the way it comes from the ADC inside the smartscope, so without any kind of filtering or compensation applied to them.
	The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.		The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.
			<br>'''Note:''' Because of USB bandwidth and disk limitations, it is not possible to record all data to disk. Instead, scopes record short chunks of data, in case of the SmartScope these chunks contain 2048 samples. It is important to understand that 2 chunks of data are not consecutive to each other: there is data between them which was not recorded. In case you need consecutive data, switch to Rolling mode instead.
	<br>[[File:csvNonRolling.png]]		<br>[[File:csvNonRolling.png]]

	==Creating the time axis - visualizing the data in Excel==		==Creating the time axis - visualizing the data in Excel==
	Typically, you’ll want to plot the voltages against the time. The file contains a hidden formula which lets you create the time-axes automatically: select field D3, and double-click on its bottom-right corner. This will make Excel fill the entire column with the timestamp of that acquisition!		Typically, you’ll want to plot the voltages against the time. The file contains a hidden formula which lets you create the time-axes automatically: select field D3, and double-click on its bottom-right corner. This will make Excel fill the entire column with the timestamp of that acquisition!

Riemerg at 20:20, 14 December 2017

2017-12-14T20:20:34Z

← Older revision		Revision as of 20:20, 14 December 2017
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	*Channel[0-7]_Acq00000 -> Channel[0-7]_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, each column here represents an acquisition of up to 2048 digital samples (1 or 0) of all digital channels separately.		*Channel[0-7]_Acq00000 -> Channel[0-7]_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, each column here represents an acquisition of up to 2048 digital samples (1 or 0) of all digital channels separately.
	*ChannelLA_Acq00000 -> ChannelLA_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, each column here represents an acquisition of up to 2048 byte-value (0 to 255) of all 8 digital inputs combined. This means that these columns are a combination of the Channel[0-7] columns.		*ChannelLA_Acq00000 -> ChannelLA_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, each column here represents an acquisition of up to 2048 byte-value (0 to 255) of all 8 digital inputs combined. This means that these columns are a combination of the Channel[0-7] columns.
	*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns.		*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns. Eg, the RAW channels show the raw data the way it comes from the ADC inside the smartscope, so without any kind of filtering or compensation applied to them.
	The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.		The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.
	<br>[[File:csvNonRolling.png]]		<br>[[File:csvNonRolling.png]]

Riemerg at 20:19, 14 December 2017

2017-12-14T20:19:35Z

← Older revision		Revision as of 20:19, 14 December 2017
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	*SampleTime: useful for creating time axis, see ‘Creating the time axis’ below		*SampleTime: useful for creating time axis, see ‘Creating the time axis’ below
	From here on, each column represents a full waveform (typically 2048 samples) of the channel specified at the top row:		From here on, each column represents a full waveform (typically 2048 samples) of the channel specified at the top row:
	*ChannelA_Acq00000 -> ChannelA_AcqXYZ: each column represents an acquisition of up to 2048 samples of this channel. The time between each sample (row) is given in the SamplePeriod column (see above). The time between each acquisition set (column) can be derived from the AcquisitionID & AcquisitionStartTime columns (see above)		*ChannelA_Acq00000 -> ChannelA_AcqXYZ: each column represents an acquisition of up to 2048 samples of this channel. These are the voltages measured for the channel written in the top row. The time between each sample (row) is given in the SamplePeriod column (see above). The time between each acquisition set (column) can be derived from the AcquisitionID & AcquisitionStartTime columns (see above)
	*Channel[0-7]_Acq00000 -> Channel[0-7]_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, each column here represents an acquisition of up to 2048 digital samples (1 or 0) of all digital channels separately.		*Channel[0-7]_Acq00000 -> Channel[0-7]_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, each column here represents an acquisition of up to 2048 digital samples (1 or 0) of all digital channels separately.
	*ChannelLA_Acq00000 -> ChannelLA_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, each column here represents an acquisition of up to 2048 byte-value (0 to 255) of all 8 digital inputs combined. This means that these columns are a combination of the Channel[0-7] columns.		*ChannelLA_Acq00000 -> ChannelLA_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, each column here represents an acquisition of up to 2048 byte-value (0 to 255) of all 8 digital inputs combined. This means that these columns are a combination of the Channel[0-7] columns.

Riemerg at 20:18, 14 December 2017

2017-12-14T20:18:38Z

← Older revision		Revision as of 20:18, 14 December 2017
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	From here on, each column represents a full waveform (typically 2048 samples) of the channel specified at the top row:		From here on, each column represents a full waveform (typically 2048 samples) of the channel specified at the top row:
	*ChannelA_Acq00000 -> ChannelA_AcqXYZ: each column represents an acquisition of up to 2048 samples of this channel. The time between each sample (row) is given in the SamplePeriod column (see above). The time between each acquisition set (column) can be derived from the AcquisitionID & AcquisitionStartTime columns (see above)		*ChannelA_Acq00000 -> ChannelA_AcqXYZ: each column represents an acquisition of up to 2048 samples of this channel. The time between each sample (row) is given in the SamplePeriod column (see above). The time between each acquisition set (column) can be derived from the AcquisitionID & AcquisitionStartTime columns (see above)
	*Channel[0-7]_Acq00000 -> Channel[0-7]_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, ~~the~~ digital ~~values~~ (1 or 0) of all digital channels ~~will be stored to file~~.		*Channel[0-7]_Acq00000 -> Channel[0-7]_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, each column here represents an acquisition of up to 2048 digital samples (1 or 0) of all digital channels separately.
	*ChannelLA_Acq00000 -> ChannelLA_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, ~~these columns represent the~~ byte-value of all 8 digital inputs combined. This means that these columns are a combination of the Channel[0-7] columns.		*ChannelLA_Acq00000 -> ChannelLA_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, each column here represents an acquisition of up to 2048 byte-value (0 to 255) of all 8 digital inputs combined. This means that these columns are a combination of the Channel[0-7] columns.
	*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns.		*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns.
	The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.		The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.

Riemerg at 20:14, 14 December 2017

2017-12-14T20:14:04Z

← Older revision		Revision as of 20:14, 14 December 2017
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	*ChannelA (B): the voltage of ChannelA(B)		*ChannelA (B): the voltage of ChannelA(B)
	*ChannelARaw (B): the unprocessed bytevalue of channel A (B) returned by the hardware		*ChannelARaw (B): the unprocessed bytevalue of channel A (B) returned by the hardware
			*Channel0-Channel7: in case you've been recording during Mixed mode or Digital mode, the values of the digital channels will be stored to file.
	In most cases, you’ll be interested in ChannelA/B columns, as these contain the voltages of both channels. Each row contains a new acquisition, with the time between each acquisition specified in the SamplePeriod column.		In most cases, you’ll be interested in ChannelA/B columns, as these contain the voltages of both channels. Each row contains a new acquisition, with the time between each acquisition specified in the SamplePeriod column.
	==Examining a non-rolling .csv file data using Excel==		==Examining a non-rolling .csv file data using Excel==
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	*SamplePeriod: the amount of seconds between each recorded sample (between each Excel row)		*SamplePeriod: the amount of seconds between each recorded sample (between each Excel row)
	*SampleTime: useful for creating time axis, see ‘Creating the time axis’ below		*SampleTime: useful for creating time axis, see ‘Creating the time axis’ below
			From here on, each column represents a full waveform (typically 2048 samples) of the channel specified at the top row:
	*ChannelA_Acq00000 -> ChannelA_AcqXYZ: each column represents an acquisition of up to 2048 samples of this channel. The time between each sample (row) is given in the SamplePeriod column (see above). The time between each acquisition set (column) can be derived from the AcquisitionID & AcquisitionStartTime columns (see above)		*ChannelA_Acq00000 -> ChannelA_AcqXYZ: each column represents an acquisition of up to 2048 samples of this channel. The time between each sample (row) is given in the SamplePeriod column (see above). The time between each acquisition set (column) can be derived from the AcquisitionID & AcquisitionStartTime columns (see above)
			*Channel[0-7]_Acq00000 -> Channel[0-7]_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, the digital values (1 or 0) of all digital channels will be stored to file.
			*ChannelLA_Acq00000 -> ChannelLA_AcqXYZ: in case you've been recording during Mixed mode or Digital mode, these columns represent the byte-value of all 8 digital inputs combined. This means that these columns are a combination of the Channel[0-7] columns.
	*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns.		*Other data columns: each channel will have as many columns as the number of acquisitions recorded. This means unprocessed bytevalues, digital channels, decoders and analog operators will all have their columns.
	The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.		The image below shows an example of how a fastly moving signal can be visualized in Excel. See the next section on more information on how to convert the data discussed above into a graph.

Riemerg: /* Fast signals, record every X seconds (non-rolling mode) */

2017-06-30T07:35:44Z

Fast signals, record every X seconds (non-rolling mode)

← Older revision		Revision as of 07:35, 30 June 2017
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	<br>[[File:interval.png]]		<br>[[File:interval.png]]
	<br>Now when you press the Record button, you’ll see that the ‘Data stored’ property of the Systems measurement box only increases at each interval you specified above. As a result, the file on disk will only contain the bursts at intervals you specify, allowing you to record over very large timespans and still keep the file very small.		<br>Now when you press the Record button, you’ll see that the ‘Data stored’ property of the Systems measurement box only increases at each interval you specified above. As a result, the file on disk will only contain the bursts at intervals you specify, allowing you to record over very large timespans and still keep the file very small.
			<br><br>'''Note:''' this doesn't work in '''rolling mode'''. However, while in rolling mode you can always set the the Trigger mode to 'auto trigger'. This gives a visually less appealing result, but allows you to record with a specified interval.

	==Full RAM contents (single acquisition only)==		==Full RAM contents (single acquisition only)==
	In all other modes above, all data shown on the screen (and potentially a bit more to the left and right) will be recorded to disk, which typically means 2048 samples for each channel for each acquisition. If you want to store the contents of the full RAM, this is also possible: simply stop the acquisition and wait till the full RAM contents has been downloaded (indicated by the green progress bar in the Panorama). Once this is complete, hit the Record button. You will be presented with the dialog below, asking you if you want to store the current data. When you click OK, the full contents of the RAM will be stored to disk.		In all other modes above, all data shown on the screen (and potentially a bit more to the left and right) will be recorded to disk, which typically means 2048 samples for each channel for each acquisition. If you want to store the contents of the full RAM, this is also possible: simply stop the acquisition and wait till the full RAM contents has been downloaded (indicated by the green progress bar in the Panorama). Once this is complete, hit the Record button. You will be presented with the dialog below, asking you if you want to store the current data. When you click OK, the full contents of the RAM will be stored to disk.

Riemerg: /* Full RAM contents (single acquisition only) */

2016-03-02T08:41:16Z

Full RAM contents (single acquisition only)

← Older revision		Revision as of 08:41, 2 March 2016
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	==Full RAM contents (single acquisition only)==		==Full RAM contents (single acquisition only)==
	In all other modes above, all data shown on the screen (and potentially a bit more to the left and right) will be recorded to disk, which typically means 2048 samples for each channel for each acquisition. If you want to store the contents of the full RAM, this is also possible: simply stop the acquisition and wait till the full RAM contents has been downloaded (indicated by the green progress bar in the Panorama). Once this is complete, hit the Record button. You will be presented with the dialog below, asking you if you want to store the current data. When you click OK, the full contents of the RAM will be stored to disk.		In all other modes above, all data shown on the screen (and potentially a bit more to the left and right) will be recorded to disk, which typically means 2048 samples for each channel for each acquisition. If you want to store the contents of the full RAM, this is also possible: simply stop the acquisition and wait till the full RAM contents has been downloaded (indicated by the green progress bar in the Panorama). Once this is complete, hit the Record button. You will be presented with the dialog below, asking you if you want to store the current data. When you click OK, the full contents of the RAM will be stored to disk.
			<br>'''Important:''' You have to wait until the entire contents of the RAM has been transferred (see previous line). When you hit the Record button before this transfer is complete, only the Viewport data (2048 samples) will be written to file.
	<br>'''Note:''' Excel has a limit of max 1 million rows, so if you’re using csv+Excel make sure you keep the RAM depth to the default setting of 512k.		<br>'''Note:''' Excel has a limit of max 1 million rows, so if you’re using csv+Excel make sure you keep the RAM depth to the default setting of 512k.