Problem with random function in CM530

[zboroujeni]

Hello,

I am trying to run random function with CM530. I configured my work space as link below. I work with eclipse -OS: windows 7.
http://support.robotis.com/en/software/embeded_c/cm530.htm
I can compile me program successfully. But when I run the program at CM530, it hangs on line :

Code: Select all

int a=rand();

Do you have any idea how can I solve the problem?
I change also my makefile and add -mfpu=vfp -msoft-float in COMPILE_OPTS.
I tried also to compile the program with arm-non-eabi as line below suggested:
http://forums.trossenrobotics.com/showthread.php?6039-Math-h-lib-with-Bioloid-CM-530-and-C
But the same problem occurred. It hangs on line rand() function.

Thank you in advance for your help and considerations.
Best,
Zargol

[andrefleitao]

Hi

Have you tried using srand instead of rand?

http://infocenter.arm.com/help/index.js ... _srand.htm

andrefleitao