Tamas,
thanks a lot for your reply. Actaually I think that assigning to retVal (an
int, not a int *) following the sscanf prototype is correct. About your
second (right) observation, I actually made (another) copy and paste mistak=
e
in the previous code example of my post. I added two additional %hhd in the
first sscanf instruction. Following the correct code, which is the one I
really tested before writing my post. It doesn't work, the first sscanf is
correctly executed and theChar1 get the value 12, but the second sscanf
crashes.

*// 99 init values just for debugging resons
char string[32] =3D "test1 1.525,2.789,12,13,14";
char theChar1 =3D 99;
char theChar2 =3D 99;
char theChar3 =3D 99;
float theFloat1;
float theFloat2;
int retVal =3D 99;

retVal =3D sscanf(&string[6],"%f,%f,%hhd",&theFloat1, &theFloat2, &theChar1=
);
// ALL OK!
retVal =3D sscanf(&string[6],"%hhd", &theChar2); // IT CRASHES
retVal =3D sscanf(&string[21],"%hhd", &theChar3); // NOT EXECUTED*

And, if I don't use the last two instructions, it fails also if I replace
them withe the following two:

*retVal =3D sscanf("13","%hhd", &theChar2); // IT CRASHES
retVal =3D sscanf("14","%hhd", &theChar3); // NOT EXECUTED*

In order to speed up my project because, unfortunately, I have to deliver
this week, I went around the issue and found a solution that is not
super-elegant but it works. It is:

*char string[32] =3D "test1 1.525,2.789,12,13,14";
char theChar1 =3D 99;
char theChar2 =3D 99;
char theChar3 =3D 99;
int tempInt1 =3D 99;
int tempInt2 =3D 99;
int tempInt3 =3D 99;
float theFloat1;
float theFloat2;
int retVal =3D 99;

retVal =3D sscanf(&string[6],"%f,%f,%d,%d,%d",&theFloat1, &theFloat2, &int
tempInt1, &int tempInt2, &int tempInt3);  // ALL OK HERE!

theChar1 =3D (char) tempInt1;
theChar2 =3D (char) tempInt2;
theChar3 =3D (char) tempInt3;*

In my opinion it is not a stack issue. I say that without having deeply
tested it, but I ran a test with a string much shorter of char string[32] =
=3D
"test1 1.525,2.789,12,13,14"; above but still trying to get three char with
%hhd. It is probably due to %hhd format that the function crashes. But
unfortunately, in the Microchip documentation, I haven't found anything
about how to get numeric char from sscanf.

Since I really don't like to go around to good solutions with the code I
wrote above (even if it works), does anyone know what the solution is? It
would be helpful for the community to know it. Thanks again to all, I reall=
y
appreciate your help.





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