77e2628600
"Selecting master clock %d for channel %d on subdevice %d.\n" The %d after subdevice was missing although the corresponding parameter in the argument list was present.
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/*
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* INSN_CONFIG_SET_CLOCK_SRC example
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* Part of Comedilib
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*
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* Copyright (c) 1999,2000 David A. Schleef <ds@schleef.org>
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* Copyright (c) 2007 Frank Mori Hess <fmhess@users.sourceforge.net>
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*
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* This file may be freely modified, distributed, and combined with
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* other software, as long as proper attribution is given in the
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* source code.
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*/
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/*
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* Requirements: A board with a subdevice that supports
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* INSN_CONFIG_CLOCK_SRC
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <comedilib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <getopt.h>
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#include <ctype.h>
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#include "examples.h"
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comedi_t *device;
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int main(int argc, char *argv[])
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{
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unsigned period_ns;
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int retval;
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lsampl_t clock_selection;
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struct parsed_options options;
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init_parsed_options(&options);
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options.freq = 0.;
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parse_options(&options, argc, argv);
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device = comedi_open(options.filename);
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if(!device){
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comedi_perror(options.filename);
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exit(-1);
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}
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if(options.freq > 0.)
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period_ns = 1e9 / options.freq;
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else
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period_ns = 0;
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clock_selection = options.value;
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printf("Selecting master clock %d for channel %d on subdevice %d.\n", clock_selection, options.channel, options.subdevice);
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if(period_ns)
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{
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printf("Clock period = %d nanoseconds.\n", period_ns);
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}else
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{
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printf("Clock period unspecified.\n");
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}
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retval = comedi_set_clock_source(device, options.subdevice, options.channel, clock_selection, period_ns);
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if(retval < 0) comedi_perror("comedi_set_clock_source");
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comedi_close(device);
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return retval;
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}
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