4 bits --> 16 outputs

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02 Apr 2021 17:29 #204537 by pferrick
Hi all-

What is the recommended method to take 4 7i76 input bits and make one of 16 gcode subroutines happen?

It seems as though I need the HAL equivalent of a BCD-to-decimal chip. I originally thought that weighted_sum would do it, but I haven't been able to figure out how to use the output to trigger MDI commands in my ini file.

Thanks in advance for any suggestions!

regards,
Patrick

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02 Apr 2021 18:39 #204541 by PCW
Replied by PCW on topic 4 bits --> 16 outputs
There is such a component but only for 8 outputs: select8
it should be possible to combine 2 of these ( one enabled by /bit3 and
the other by bit3) to get a 1/16 decoder

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02 Apr 2021 18:43 #204542 by roland
Replied by roland on topic 4 bits --> 16 outputs
Hi Patrick,

i do this with a component i wrote for it.

--
Roland

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File Name: bitsel16.comp
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The following user(s) said Thank You: pferrick

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02 Apr 2021 18:45 #204543 by Henk
Replied by Henk on topic 4 bits --> 16 outputs
Hi.
mux16 does this...but it gives float/s32 output values, not bits

If it was me, I would probably just use classic ladder

You could use match8 with a count of 16 (I think) and connect the a bits to your inputs and setp the b bits for each instance...

There may be better ways though

H

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02 Apr 2021 18:53 #204545 by pferrick
Replied by pferrick on topic 4 bits --> 16 outputs
Thanks very much Roland....I was just getting ready to (finally) learn how to write a new component, but now all I have to do is learn how to install yours! One step at a time....

Patrick

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