Hi
Do you intend to later add more controllers to your RS485 bus in a
multidrop architecture? If you intend to do this I might be able to
help a bit with the 9 bit multidrop protocol where all the slaves
listen to their address with the ninth bit set. I have implemented a
simple 9-bit multidrop
Hi Andi!
Maybe you haven't link the mathematical library!
In order to access the mathematical functions that are declared in ,
the linker needs to be told to also link the library, libm.a. Typically,
system libraries like libm.a are given to the final C compiler command line
that performs the
You have to compile with no optimization: -O0
The compiler is wiping your code away because your variable x is not used
anywhere else.
Eric Pasquier
-Mensagem original-
De: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Em nome de
andi
Enviada em: mardi 3 avril 2007 08:35
Para: avr-gcc-li
* andi <[EMAIL PROTECTED]> [07-04-03 08:51]:
I want to use float type in my code, but after i compile it, the avr-gcc not
the generate code for the variable:
float x = 1.23;
x = x*2;
sei();
Do you use this variable later on? If not, gcc might just optimize it
away.
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