C program that sends 1mA to all Si sensors

[Shayaan_Mustafa]

Hi,
Can someone help me in understanding this program. I need to try this with Labview Software. 

/* THIS PROGRAM SENDS ONLY 1mA TO all si SENSORS [137 to 0 ]<br />  TO DIFFERENTIATE<br />  BETWEEN SENSORS DIPPED IN LIQUID &#038; VAPOUR. VOLTAGES ACROSS THESE<br />  SENSORS ARE STORED IN A FILE OPENED*/<br /> <br />       #include<ieee-c.h><br />       #include<stdlib.h><br />        #include<stdio.h><br />       #include<conio.h><br />       #include<dos.h><br />  //     #define CSRC 14<br />       #define DVM 12<br />       int status;<br />       //unsigned int v2;<br />       float v1;<br />       extern Base=0x200;<br />       error_handler(error,routine)<br />      <br />       int error;<br />       char *routine;<br />       {<br />  char ch;<br />  if(error!=0)<br />     {<br />      printf("nError in call to %s n",routine);<br />      printf("Press any key to continue:");<br />      scanf("%c",&#038;ch);<br />    }<br />       }<br />       initialize_hpib()<br />       {<br />  settimeout(3000);<br />  error_handler(status,"SETTIMEOUT Error");<br />  return;<br />       }<br />       sourcesetup()<br />        {<br />   char *str;<br />             transmit("DCL",&#038;status);<br />      error_handler(status,"Device Clear");<br />    /*<br />   str="D0R0T0G0K0F0X";<br />   send(CSRC,str,&#038;status);<br />   error_handler(status,"CSRC INITIALISING EEROR");<br />    */<br />   str="F0R2G1P10X"; /*SET UP THE DVM */<br />   send(DVM,str,&#038;status);<br />   error_handler(status,"DVM setting error");<br />        }<br />   /*<br />        csrcsetup()<br />  {<br />    char *str,cv[20];<br />    int l;<br />    str="L2B2I+1E-3V+3E+0P1X";<br />    send(CSRC,str,&#038;status);<br />    error_handler(status,"CSRC SETTING ERROR");<br />     str="L2B2X";<br />     send(CSRC,str,&#038;status);<br />     error_handler(status,"CSRC ERROR");<br />    str="F1X";<br />    send(CSRC,str,&#038;status);<br />    error_handler(status,"CSRC EXECUTION ERROR");<br />            delay(1000);<br />             enter(cv,20,&#038;l,DVM,&#038;status);<br />     error_handler(status,"ENTER statement");<br />     v1=atof(cv);<br />     return;<br />     }<br />   */<br />      /*<br />        trigger()<br />        {<br />    error=IOTRIGGER(CSRC);<br />    error_handler(error,"IOTRIGGER");<br />  <br />     error=IOTRIGGER(DVM);<br />    error_handler(error,"IOTRIGGER");<br />      delay(100);<br />        }<br />       */<br />        main()<br />        {<br />   int l,sensor_no;<br />   char cv[20],buf[6000];<br />   FILE *fp;<br />   fp=fopen("smtochk1.c","w+");<br />   clrscr();<br />   printf("n THIS PROGRAM IS TO INDIVIDUALLY CHECK THE VOLTAGEn ACROSS EACH SENSOR. PRESS ANY KEY TO SWITCH TOn NEXT SENSOR");<br />   printf("n PRESS CTRL-BREAK KEY TO SUSPEND/QUIT THE JOB");<br />   outportb(Base+0x09,7);/*UNIPOLAR &#038; INPUT RANGE 0-10V*/<br />   outportb(Base+0x0c,3);/*SOFTWARE TRIGGER ENABLING*/<br />   outportb(Base+0x0a,0);/* UNIPOLAR WITH CH0 SELECTION*/<br />    printf("n THIS PROGRAM WRITES THE CURRENT OUTPUT IN THE FILE "smtochek1.c"n [WHICH CAN BE SAVED]");<br />    initialize_hpib();<br />    sourcesetup();<br />    printf("nn SENSOR NO.t VOLTAGE IN voltS.");<br />   for(sensor_no=137;sensor_no>=0;sensor_no--)<br />    {<br />     outportb(Base+0x0,sensor_no);<br />  //   csrcsetup();<br />  //   trigger();<br />            enter(cv,20,&#038;l,DVM,&#038;status);<br />     error_handler(status,"ENTER statement");<br />     v1=atof(cv);<br />    printf("nn %dt %f", sensor_no,v1);<br />     sprintf(buf,"n Sensor no=%d Voltage at   1mA is %f V",sensor_no,v1);<br />     fputs(buf,fp);<br />   getch();<br />   }<br />   printf("nOVER ");<br /> <br />    transmit("DCL",&#038;status);<br />    error_handler(status,"Device Clear");<br />  getch();<br />        }</ieee-c.h>

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/* THIS PROGRAM SENDS ONLY 1mA TO all si SENSORS [137 to 0 ]<br />  TO DIFFERENTIATE<br />  BETWEEN SENSORS DIPPED IN LIQUID &#038; VAPOUR. VOLTAGES ACROSS THESE<br />  SENSORS ARE STORED IN A FILE OPENED*/<br /> <br />       #include<ieee-c.h><br />       #include<stdlib.h><br />        #include<stdio.h><br />       #include<conio.h><br />       #include<dos.h><br />  //     #define CSRC 14<br />       #define DVM 12<br />       int status;<br />       //unsigned int v2;<br />       float v1;<br />       extern Base=0x200;<br />       error_handler(error,routine)<br />      <br />       int error;<br />       char *routine;<br />       {<br />  char ch;<br />  if(error!=0)<br />     {<br />      printf("nError in call to %s n",routine);<br />      printf("Press any key to continue:");<br />      scanf("%c",&#038;ch);<br />    }<br />       }<br />       initialize_hpib()<br />       {<br />  settimeout(3000);<br />  error_handler(status,"SETTIMEOUT Error");<br />  return;<br />       }<br />       sourcesetup()<br />        {<br />   char *str;<br />             transmit("DCL",&#038;status);<br />      error_handler(status,"Device Clear");<br />    /*<br />   str="D0R0T0G0K0F0X";<br />   send(CSRC,str,&#038;status);<br />   error_handler(status,"CSRC INITIALISING EEROR");<br />    */<br />   str="F0R2G1P10X"; /*SET UP THE DVM */<br />   send(DVM,str,&#038;status);<br />   error_handler(status,"DVM setting error");<br />        }<br />   /*<br />        csrcsetup()<br />  {<br />    char *str,cv[20];<br />    int l;<br />    str="L2B2I+1E-3V+3E+0P1X";<br />    send(CSRC,str,&#038;status);<br />    error_handler(status,"CSRC SETTING ERROR");<br />     str="L2B2X";<br />     send(CSRC,str,&#038;status);<br />     error_handler(status,"CSRC ERROR");<br />    str="F1X";<br />    send(CSRC,str,&#038;status);<br />    error_handler(status,"CSRC EXECUTION ERROR");<br />            delay(1000);<br />             enter(cv,20,&#038;l,DVM,&#038;status);<br />     error_handler(status,"ENTER statement");<br />     v1=atof(cv);<br />     return;<br />     }<br />   */<br />      /*<br />        trigger()<br />        {<br />    error=IOTRIGGER(CSRC);<br />    error_handler(error,"IOTRIGGER");<br />  <br />     error=IOTRIGGER(DVM);<br />    error_handler(error,"IOTRIGGER");<br />      delay(100);<br />        }<br />       */<br />        main()<br />        {<br />   int l,sensor_no;<br />   char cv[20],buf[6000];<br />   FILE *fp;<br />   fp=fopen("smtochk1.c","w+");<br />   clrscr();<br />   printf("n THIS PROGRAM IS TO INDIVIDUALLY CHECK THE VOLTAGEn ACROSS EACH SENSOR. PRESS ANY KEY TO SWITCH TOn NEXT SENSOR");<br />   printf("n PRESS CTRL-BREAK KEY TO SUSPEND/QUIT THE JOB");<br />   outportb(Base+0x09,7);/*UNIPOLAR &#038; INPUT RANGE 0-10V*/<br />   outportb(Base+0x0c,3);/*SOFTWARE TRIGGER ENABLING*/<br />   outportb(Base+0x0a,0);/* UNIPOLAR WITH CH0 SELECTION*/<br />    printf("n THIS PROGRAM WRITES THE CURRENT OUTPUT IN THE FILE "smtochek1.c"n [WHICH CAN BE SAVED]");<br />    initialize_hpib();<br />    sourcesetup();<br />    printf("nn SENSOR NO.t VOLTAGE IN voltS.");<br />   for(sensor_no=137;sensor_no>=0;sensor_no--)<br />    {<br />     outportb(Base+0x0,sensor_no);<br />  //   csrcsetup();<br />  //   trigger();<br />            enter(cv,20,&#038;l,DVM,&#038;status);<br />     error_handler(status,"ENTER statement");<br />     v1=atof(cv);<br />    printf("nn %dt %f", sensor_no,v1);<br />     sprintf(buf,"n Sensor no=%d Voltage at   1mA is %f V",sensor_no,v1);<br />     fputs(buf,fp);<br />   getch();<br />   }<br />   printf("nOVER ");<br /> <br />    transmit("DCL",&#038;status);<br />    error_handler(status,"Device Clear");<br />  getch();<br />        }</ieee-c.h>

Thanks in advance.

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