ROM Space XBee Programmable

XBee & XBee Gateway XBee Programamble (S2C & 900 HP)
,
1

Hi everyone

I have a problem. I’m developing a firmware to load in my programmable XBee. The size of the code is apparently a little more than 28 kBs, so the compiler gives me an error (the code can’t be larger than 28.160 bytes)

So, does anyone know how i can reduce the size of the code? I’m talking about some configuration, the way that the compiler works, something like that.

Thanks in advance

2

No there is no option to reduce the code via the compiler. You must do it within your code.

3

As always, thanks mvut!

I fixed the error, however, i don’t understand it. If i use the function pow() to power a number, it doesn’t work and the compiler gives me the error not enough space in ROM.

If i multiply the variable by itself, it works OK.

WTF?

4

This command is used for a Floating Point processor that requires specific lib files. I do not recommend going this rout.

5

Thanks mvut!

I wish to ask you for an advice. I don’t understand the problem of the ROM space. Look at this:

If my code says (v_ADC_Xbee powered 3), compiles fine.

v_ADC_Xbee_3 = v_ADC_Xbeev_ADC_Xbeev_ADC_Xbee;

But, adding this code line

v_ADC_Xbee_2 = v_ADC_Xbee*v_ADC_Xbee;

Then the code would be

[…]
v_ADC_Xbee_3 = v_ADC_Xbeev_ADC_Xbeev_ADC_Xbee;
v_ADC_Xbee_2 = v_ADC_Xbee*v_ADC_Xbee;
[…]

And it doesn’t compile! And the problem is supposed to be ROM space.

Do you know what is happening?
I have to find a number using polinomy approximation and can’t anyway

Thanks, as always

6

Sorry, I am not good enough in C to answer that one.