Out of ROM

[Mortenc]

Hello Super forum,

I have a mysterious thing.

I get a message " Out of ROM, a segment or the program is to large".

The message come when I make the program smaller!!
If I keep the "else" call of the function "calc_windows" the ROM use is 78%.

void limit_calc() //
{
if (new_calc == 1)
{
temp = read_eeprom(EE_c_limit_ok);
temp1 = read_eeprom(EE_o_limit_ok);
if ((temp == 0) && (temp1 == 0)) //
{
calc_windows();
}
}
else
{
calc_windows(); // If I remove this, the message - Out of ROM come
}
}

[Foppie]

you could try adding the #separate directive in from of your calc_windows() function.

like this:

[Mortenc]

Thanks a lot, it worked.

(sorry I'am new with C-programing)

Does this mean that the compiler try to make the code "inline" when the function is only called one time?

Will I get a mesage if there is stack overflow when I use "separate"?

[Ttelmah]

Yes. The optimiser will 'inline' anything only used in one place.
Look at the top of the .LST file. 9th line down, lists the stack useage. There is an error, if an ISR, will overflow the stack, but (obviously), you can turn this off, so the LST file is the real 'check'.

Best Wishes

[Mortenc]

Ohh I like this forum.

Thanks a lot.