44 lines
1.5 KiB
Plaintext
44 lines
1.5 KiB
Plaintext
// This is a component for LinuxCNC HAL
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// Copyright 2023 The LinuxCNC Project
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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component dsmono "Double-sided monoflop";
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// Credits: This is very loosely based on edge.comp by Jeff Epler
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pin in bit in "Input signal";
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pin out bit out "Filtered output signal, tracking 'in' with a deadtime component";
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pin out bit out_invert "Negative of 'out'";
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param rw signed deadtime_ns = 0 "Time to be insensitive after an edge on 'in'.";
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param r signed time_left_ns = 0 "Time left in this output pulse";
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function _ nofp "Filter input with a deadtime component";
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license "GPL";
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author "ok";
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;;
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FUNCTION(_){
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static char old_in;
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if (time_left_ns > 0) {
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time_left_ns -= period;
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} else if (old_in != in) {
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time_left_ns = deadtime_ns;
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old_in = in;
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out = in;
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out_invert = !in;
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}
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}
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