STM CircleOS forum / How to use Joystick in an Application?

peterguy · 2009-11-15 00:53:46

Hi,

I'm currently trying to use the joystick of the PRIMER2 in my application.
I found an example project, where the function call JOYSTICK_GetState() is used.
But when I use same command in my Project, the App is not working. Also, the enum JOYSTICK_state seems to be not included in circle_api.h.

How can I get the JOYSTICK functions running?

Regards,
Peter

yrt · 2009-11-16 07:35:14

Hi Peter,

Use of the JOYSTICK_GetState() is the rigth way to manage the joystick. The status of the joystick is periodically updated by the CircleOS button handler.

The JOYSTICK_state is well defined in the "circle_api.h" as :
enum JOYSTICK_state
{
JOYSTICK_UNDEF = -1, /*!< Undefined state. */
JOYSTICK_RELEASED = 0, /*!< Joystick is released. */
JOYSTICK_LEFT = 1, /*!< Joystick was just pushed left. */
JOYSTICK_UP = 2, /*!< Joystick was just pushed up. */
JOYSTICK_RIGHT = 3, /*!< Joystick was just pushed right. */
JOYSTICK_DOWN = 4, /*!< Joystick was just pushed down. */
JOYSTICK_RIGHT_UP = 11, /*JOYSTICK_RIGHT | JOYSTICK_UP*/
JOYSTICK_LEFT_UP = 5, /*JOYSTICK_LEFT | JOYSTICK_UP*/
JOYSTICK_RIGHT_DOWN = 13, /*JOYSTICK_RIGHT | JOYSTICK_DOWN*/
JOYSTICK_LEFT_DOWN = 7, /*JOYSTICK_LEFT | JOYSTICK_DOWN */
};

What do you mean by the App is not working ?
And what is the version of your CircleOS ?

Yves

peterguy · 2009-11-16 09:24:05

Hello Yves,

Thanks for your answer!
I solved the problem in the meanwhile. Here a short description for people which have same or similar problem:

I'm using OS version 3.1
My Application did not work at all when I called JOYSTICK_GetState(), that means it compiled but PRIMER2 hang with white screen after flashing.
When I used the JOYSTICK_state enums, compilation has not been possible.
Then I had a look into circle api header file of my project and found no JOYSTICK related API or defines.

So I replaced the circle api header file with one from different project and now everything is fine.
It seems that when starting a project from the scratch in RIDE7, a version of circle_api.h is used that is not prepared well for PRIMER2. Might also be that I perhaps made some wrong settings in the beginning.

regards,
Peter

yrt · 2009-11-16 13:13:37

Peter,

V3.1 is very old version of CircleOS (in fact the first one for Primer2), and I guess you are also using an old version of Ride7.
I suggest you to update your version with the ressources provided on this web site.

Yves

# 1 2009-11-15 00:53:46 How to use Joystick in an Application?

How to use Joystick in an Application?

# 2 2009-11-16 07:35:14 How to use Joystick in an Application?

Re: How to use Joystick in an Application?

# 3 2009-11-16 09:24:05 How to use Joystick in an Application?

Re: How to use Joystick in an Application?

# 4 2009-11-16 13:13:37 How to use Joystick in an Application?

Re: How to use Joystick in an Application?

Board footer