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di_simplest.c File Reference

Simplest possible DI-194(RS) test program. More...

#include <sys/types.h>
#include <stdlib.h>
#include <math.h>
#include <unistd.h>
#include <stdint.h>
#include "di194.h"

Go to the source code of this file.

Functions
void	sighandler (int signal)
	Control-break handler. Sets global flag to indicate exit request.
int	main (int argc, char *argv[])
	Driver / test routine to exercise the DI code.
Variables
bool	do_exit
	Global boolean set by signal handler to force exit.

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Detailed Description

Simplest possible DI-194(RS) test program.

Author:

Paul Hubbard

Date:

4/2/03

Definition in file di_simplest.c.

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Function Documentation

int main (  int  argc, char *  argv[] )

Driver / test routine to exercise the DI code. Note: Uses contents of "DI194_PORT" if set Main. Open the port, init the card, do a daq. Too: -p port parsing, will need for USB serial. getopt! Parameters: argc  Argc as passed by shell argv  Argv as passed by shell Returns: 0 All is good Non-zero All is not good Definition at line 67 of file di_simplest.c. References daq_reading_t::analog, di_close(), di_daq_sync(), di_open(), di_read(), di_start(), daq_reading_t::digital, do_exit, and sighandler().

void sighandler (  int  signal  )

Control-break handler. Sets global flag to indicate exit request. Assumes Installed in interrupt chain by someone else Parameters: signal  Signal number Date: 3/25/02 Definition at line 34 of file di_simplest.c. References do_exit. Referenced by main().

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Variable Documentation

bool do_exit

Global boolean set by signal handler to force exit. Definition at line 21 of file di_simplest.c.

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