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string pointer question

 
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koenbielen



Joined: 23 Apr 2009
Posts: 42

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string pointer question
PostPosted: Fri Mar 29, 2013 6:50 am     Reply with quote

void printdatatoserialport( char *str)
void main (void)
{

printdatatoserialport("HELLO WORLD");
printdatatoserialport("Line 2");
printdatatoserialport("BYBY");

}

void printdatatoserialport( char *str)
{
fprintf(NETWERK,str);
}



Error 90 "test.c" Line 2476(35,36): Attempt to create a pointer to a constant


is there a way to solve this problem?
Mike Walne



Joined: 19 Feb 2004
Posts: 1785
Location: Boston Spa UK

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PostPosted: Fri Mar 29, 2013 8:22 am     Reply with quote

Try this link.

http://www.ccsinfo.com/forum/viewtopic.php?t=48456&start=

It might either help or explain.

Mike
Ttelmah



Joined: 11 Mar 2010
Posts: 19391

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PostPosted: Fri Mar 29, 2013 8:41 am     Reply with quote

Easiest one for what he wants is just:

#device PASS_STRINGS=IN_RAM

Add this to your code immediately after the processor define file is loaded. This will tell the compiler to generate a 'RAM buffer' for const strings, and automatically transfer them using this (which then allows pointers to be constructed).

The thread Mike points to and it's links will explain 'why'.

Best Wishes
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