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Megha-

> I think some or the other time, someone might have read data from an
> external file in CCS. I am trying to do the same.
> As I wrote in previous mail I am reading data from a prm(text) file. I am
> using fopen(), scanf() and functions like that from stdio.h. But CCS is
> not running the program. its not opening the file only.

Did you try an explicit path instead of only "8chF.prm" ?

When this happens, what are the values of errno, and strerror(errno)? 
Maybe you can do a debug printf statement:

  printf("Mega cannot open file! Error %i, %s\n", errno, strerror(errno));

to help figure it out.

-Jeff
> megha daga <m...@yahoo.com> wrote:    hey everyone
> I am working on PEP5416 and using CCS5416 as simulator. Well in my code I
> am reading data from a prm(text) file. I am reading the data and scaning
> it and storing the value as follows:
>
> if( (fileid = fopen( "8chF.prm", "r" )) == NULL )
>     {
>             exit(1);
>     }
>
> while(1)
>     {
>          if(fgets(temp, 250, fileid) == NULL)
>         {
>             exit(1);
>         }
>
>         sscanf(temp, "%s", &temp);
>         if(!strcmp(temp,"NUMCHAN"))
>         {
>              fgets(temp, 250, fileid);
>             sscanf(temp, "%hu", &numchan);
>             break;
>         }
>    }
>
> Well as you will notice I am opening a file and then reading 250 chars and
> seeing where NUMCHAN occurs. As soon as I get the match I store the value
> following in the next 250 chars of NUMCHAN in numchan.
> Well my problem is that simulator is not opening the file only. Its not
> reading the file. When i do step by step debugging, I notice that after
> "fopen" statement the debugger cursor goes to "exit(1)" instead of
> "while". I have included the proper header file too (stdio.h). Well the
> prm file is stored inside the same folder. Everything is there. there is
> no building error. I dont understand why its doing that.
> I hope I am able to expalin my problem.
> Someone kindly reply and help me out.
> Thanking You
> Megha Daga

(You need to be a member of c54x -- send a blank email to c54x-subscribe@yahoogroups.com )

dear Jeff
Thanks for replying. Well I did try the printf statement:

if((fileid = fopen( "test", "r" )) == NULL )
    printf( "The file 'test' was not opened\n" );
   else
      printf( "The file 'test' was opened\n" );

while(1)
    {
        if(fgets(temp, 250, fileid) == NULL) 
        {
            exit(1);
        }

        sscanf(temp, "%s", &temp);
        if(!strcmp(temp,"NUMCHAN"))
        {
            fgets(temp, 250, fileid);
            sscanf(temp, "%hu", &numchan);
            break;
        }
        
    }
But then it printed : 
The file 'test' was not opened. 
I also tried what you suggested: to give the whole path for the file but then it printed a
worning statemnet :
"test.c", line 10: warning: unrecognized character escape sequence
And gave the same error while running. I think there is some problem in reading .txt. I read
doc on CCS5416 and it explains how to read .dat files, but it never speaks abt .txt files. And
in my case, i need to read the txt file or something like that.
Someone kindly suggest something.
Kindly help.
Thanking You
Megha Daga

Jeff Brower <j...@signalogic.com> wrote: Megha-

> I think some or the other time, someone might have read data from an
> external file in CCS. I am trying to do the same.
> As I wrote in previous mail I am reading data from a prm(text) file. I am
> using fopen(), scanf() and functions like that from stdio.h. But CCS is
> not running the program. its not opening the file only.

Did you try an explicit path instead of only "8chF.prm" ?

When this happens, what are the values of errno, and strerror(errno)? 
Maybe you can do a debug printf statement:

  printf("Mega cannot open file! Error %i, %s\n", errno, strerror(errno));

to help figure it out.

-Jeff
> megha daga  wrote:    hey everyone
> I am working on PEP5416 and using CCS5416 as simulator. Well in my code I
> am reading data from a prm(text) file. I am reading the data and scaning
> it and storing the value as follows:
>
> if( (fileid = fopen( "8chF.prm", "r" )) == NULL )
>     {
>             exit(1);
>     }
>
> while(1)
>     {
>          if(fgets(temp, 250, fileid) == NULL)
>         {
>             exit(1);
>         }
>
>         sscanf(temp, "%s", &temp);
>         if(!strcmp(temp,"NUMCHAN"))
>         {
>              fgets(temp, 250, fileid);
>             sscanf(temp, "%hu", &numchan);
>             break;
>         }
>    }
>
> Well as you will notice I am opening a file and then reading 250 chars and
> seeing where NUMCHAN occurs. As soon as I get the match I store the value
> following in the next 250 chars of NUMCHAN in numchan.
> Well my problem is that simulator is not opening the file only. Its not
> reading the file. When i do step by step debugging, I notice that after
> "fopen" statement the debugger cursor goes to "exit(1)" instead of
> "while". I have included the proper header file too (stdio.h). Well the
> prm file is stored inside the same folder. Everything is there. there is
> no building error. I dont understand why its doing that.
> I hope I am able to expalin my problem.
> Someone kindly reply and help me out.
> Thanking You
> Megha Daga

(You need to be a member of c54x -- send a blank email to c54x-subscribe@yahoogroups.com )