Error 71

jpts · Joined: 08 Mar 2017 Posts: 40

Why message error below ? The program Rom was 44% and adding couple line of program, it shows the message error.

"Error 71 Out of Rom, A segment or the program is too large SerialData."

Note: Serial Data is a function to read incoming serial data.

temtronic · Posted: Thu Mar 30, 2017 10:27 am

re: A segment or the program is too large

short answer...

The compiler is telling you that the additional code you've added to your program cannot fit into the program space. PICs (little ones) have memory based upon segments and an entire 'function' MUST fit within a segments boundaries. If your function is say 5KB long and a segment is 4KB, then it cannot fit, hence the error message.If the function is 3KB long and there's already a 2KB function, again, the compiler can't put them both in the same segment.
Now you may get lucky IF you rearrange the functions and see if the compiler can fit them into code space better. If that doesn't work, then you may be able to break down a big functions into two or more smaller 'sub functions', again the compiler will try it's best to fit it all in.

Others may have hints or tricks they can post to help.

jpts · Joined: 08 Mar 2017 Posts: 40

I understand what you posted...but not how to implement into program. How to break sub funcion? Can give example
I am using 16F876. This message appears when I add a variable int16.

Tks

Ttelmah · Joined: 11 Mar 2010 Posts: 19499

It's been covered many times here before. For example, have a look at this thread:

<http://www.ccsinfo.com/forum/viewtopic.php?t=55328&highlight=rom+segment++program+programme>

Look at the version that does compile, and then look at what the largest single 'lump' of stuff is in this. Then see if you can split this up.

jpts · Joined: 08 Mar 2017 Posts: 40

I read all post related....and the solution was spliting in subroutine calling all from Main(). On top of each routine (total of 2) added #separate. Its compile !

Can use this way as a solution ?