casting double to long

[worlag]

Posted on April 03, 2014 at 10:11

Hi

I'm using STM32f4 i was trying this code:

int
main()
{
signed
long
sArg;
double
dArg;
sArg = ( 
signed
long
) dArg;
}

the build is ok , but when tryin to program the target i got ''no source available for 0x0''. is there a problem casting double to long ? also using atof() : unsigned char buf[10]; dArg = atof(buf); give the same problem. with this code i was able to run:

int
main()
{
signed
long
sArg;
double
dArg;
float
fArg;
fArg = (
float
) dArg;
sArg = ( 
signed
long
)fArg
}

any explanations? thanks, Ari.

[frankmeyer9]

Posted on April 03, 2014 at 11:06

but when tryin to program the target i got ''no source available for 0x0''.

is there a  problem  casting double to long ? No surely not. It seems to be a problem of your toolchain. BTW, you could have mentioned which one. Do you use Windows, and have your project in the ''C:\Program Files\'' path ?

[worlag]

Posted on April 03, 2014 at 12:01

I'm using Atollic TrueStudio for ARM , (windows).

my project is not in ''C:\Program Files\''.But i checked on the STM3240G Evaluation board . and same elf file runs perfect.Only when i'm trying to run  it on our new board i get this problem...Thogh, as you see the i don't do any HW configurations in main()..so, what can it be ? where this kind of problem should point me ?thanks,Ari

[frankmeyer9]

Posted on April 03, 2014 at 12:34

I am not an Atollic user - about two years ago I evaluated it, having several troubles with building, flashing and debugging when projects were located in the system path.

Is your debug configuration correct ? Can you confirm your code had actually been flashed to the target ? That message suggests to me that either the executable had not been flashed, or the IDE lost track between source code and machine instructions. I would additionally consult the IDE documentation and an Atollic forum.

[Tesla DeLorean]

Posted on April 03, 2014 at 13:27

Optimization? That main() exits and the code does nothing permanent?

A while(1); would stop the exiting issue.

[worlag]

Posted on April 03, 2014 at 14:04

thanks fm, i'll give a look.

clive,my compiler optimization is None.i've tried the while(1) , but still stuck..any suggestions ?thanks ,Ari

[frankmeyer9]

Posted on April 03, 2014 at 15:08

As I understood your first post, you can't even download your program.

Perhaps some project setting issue ? I'd try to setup a new project from scratch, possibly copying the main routine.

[worlag]

Posted on April 03, 2014 at 15:17

that's right, it's not even downloading.

Perhaps some project setting issue ?I'd try to setup a new project from scratch, possibly copying the main routine.but the same workspace, same project , same build, works fine on the evaluation board !!i only change the target connected to my Segger j-link..i wonder , what it got to do with different boards ?thanksAri

[frankmeyer9]

Posted on April 03, 2014 at 15:28

AFAIK, you need to change the Eclipse debug configuration if you change the debug adapter.

But as said, I'm no Eclipse/Atollic user, and moving on thin ice here ...