Fluke 2635A user manual Sample Program QuickC 1of

2635A

Users Manual

/*
* HYDRALOG.C	Hydra Program	to scan VDC, VAC, OHMS, FREQ or TEMP
*	- initializes	RS-232 Communications between PC and Hydra
*	- configures a number of Hydra channels for one type
*	of measurement (e.g., VDC, VAC, temperature, etc.)
*	- scan channels 3 times, and display and record measurement
*	data on the	screen and in file "testdata.prn"
*

*This program uses routines from the GreenLeaf Communications Library

*(asiopen(), asiputs(), and asigets_timed()) for sending and receiving

*information from the serial port connected to the Hydra. We recommend

*the use of a third-party serial communications library when developing

*C programs to communicate with Hydra instruments over PC serial ports.

*/

/*

*NOTE: Hydra must be set up for RS-232 communications, 1200 baud,

*no parity, 8 bit data

*/

#include	<stdio.h>
#include	<string.h>
#include	<errno.h>
#include	"asiports.h"	/* Greenleaf CommLib include file */
static FILE *testdata;		/* File handle for output data file */
main(argc,argv)
int argc;
char *argv[];
{
int ret_code;		/* code returned by various GreenLeaf
		communications functions */
unsigned numChannels;		/* Number of channels to be scanned */
unsigned index;		/* counter */
char	response[30];	/* Buffer for user response */
char	sendbuff[129];	/* local buffer for transmitting to Hydra */
char	recvbuff[129];	/* local buffer for receiving from Hydra */

/* Open and initialize COM2, the serial port the Hydra unit is attached to, for 1200 baud, no parity, 8 it data, and ignore DTR and CTS */

ret_code = asiopen( COM2, (ASINOUT BINARY NORMALRX), 1000, 1000, 1200L, P_NONE, 1,8,FALSE,FALSE );

if ( ret_code < ASSUCCESS ) {

fprintf(stderr,"Failed to open the port, Greenleaf error: %d.\n", ret_code );

exit(1);

}
/*send reset and uninstall */
asiputc (com2, '\x11');
asiputc (com2, '\x03');
checkResponse ();	/* Get prompt */

op53_1f.eps

Figure 4-6. Sample Program (QuickC) (1of 5)

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