Sample and Hold: Difference between revisions

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[[Category:Block Docs]]
[[Category:Block Docs]]
[[Category:Stub Docs]]
[[Category:Pages with no Example Flowgraph]]
This is the template for the [[:Category:Block_Docs|"Page-per-block Docs"]].  This first section should describe what the block does and how to use it, using however many paragraphs necessary.  Note that the title of the wiki page should match the block's name in GRC, i.e. the one defined in the block's .grc file.  Look at the [[FFT]] Block for a good example.
Sample and hold circuit.


As this is a basic template, it's also in the [[:Category:Stub_Docs|"Stub Docs category"]]. Please improve it.
Samples the data stream (input stream 0) and holds the value if the control signal is 1 (intput stream 1).


== Parameters ==
As long as the control signal is different from 0, the data stream is forwarded.
(''R''): <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>
When the control signal is 0, the output samples have the value of the last forwarded data sample.


; Param 1 (''R'')
The check of the control signal is done every sample so the two input are consumed at the same rate.
: Description of parameter, provide any tips or recommended values.  Note that the name of the parameter above should match the param's label that shows up in grc (e.g. Sample Rate).


; Param 2
: blah blah blah


== Example Flowgraph ==
== Example Flowgraph ==
Line 21: Line 18:


; C++ files
; C++ files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/sample_and_hold_impl.cc]


; Header files
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/sample_and_hold_impl.h]


; Public header files
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/include/gnuradio/blocks/sample_and_hold.h]


; Block definition
; Block definition
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/grc/blocks_sample_and_hold_xx.block.yml]

Latest revision as of 18:41, 5 April 2025

Sample and hold circuit.

Samples the data stream (input stream 0) and holds the value if the control signal is 1 (intput stream 1).

As long as the control signal is different from 0, the data stream is forwarded. When the control signal is 0, the output samples have the value of the last forwarded data sample.

The check of the control signal is done every sample so the two input are consumed at the same rate.


Example Flowgraph

Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.

Source Files

C++ files
[1]
Header files
[2]
Public header files
[3]
Block definition
[4]
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