mirror of git://sigrok.org/pulseview
35 lines
1.7 KiB
Plaintext
35 lines
1.7 KiB
Plaintext
== Data Import/Export
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In order to facilitate versatile use of the sigrok suite, libsigrok allows users to import
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and export data from files in various formats - some of them as generic as possible, others
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very specific. For a list and details, make sure to check https://sigrok.org/wiki/Input_output_formats[the wiki].
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=== Import
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The first step to importing data from a file is to know what format the data in the file is
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encoded in. There are common, not-so-common and outright exotic ways to represent data and sigrok
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tries to suit as many needs as it can. To see which formats your version of PulseView supports,
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just click on the small arrow next to the _Open_ button:
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image::pv_import.png[]
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After choosing the format that you want to use, PulseView will ask for the file name to open.
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Once you picked the file, you may be asked to specify the details of the format, if the input
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module requires them.
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For example, the VCD import will ask you for these:
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* Compress idle periods: Compress idle periods longer than the specified value (default 0)
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* Downsampling factor: Downsample, i.e. divide the samplerate by the specified factor (default 1)
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* Number of logic channels: The number of (logic) channels in the data (default 0)
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* Skip samples until timestamp: Skip samples until the specified timestamp; < 0: Skip until first timestamp listed; 0: Don't skip (default -1)
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The detailed description of each item can also be seen when clicking on the help icon on the right
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or hovering your mouse over it. A click on _OK_ then loads the data from the selected file and you
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can work with it.
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=== Export
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Export works just the same as the import: clicking on the small arrow next to the _Save_ button
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brings up the export menu. Simply choose the format you want to use and proceed.
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