Power supply in Zig bee end device

Hi Y.Chen

Thanks for reply ,this method will work but i am facing problems with functions invoked through pre processor directives.I am attaching the snapshot of the functions invoked through macros.

#if defined( POWER_SAVING )
/* Allow sleep before the next OSAL event loop */
ALLOW_SLEEP_MODE();
# endif

As theses functions are called in stack layers i am unable to make changes.So i cant make change to these functions.

Thanks
Amit Kumar

Since you want to control power mode by yourself, you shouldn't define POWER_SAVING in your project.

Hi Y.Chen,

So just calling the api osal_pwrmgr_device( PWRMGR_ALWAYS_ON ) and osal_pwrmgr_device( PWRMGR_BATTERY ) the power mode could be changed.But there are certain functions which are needed to be called during the power saving state.

Thanks
Amit Kumar

Hi Y.Chen,

Can i convert the pre-processor macros to variables in stack.Is this allowed?
The below given code snap is from
/****************************hal_drivers.c******************************/
#if defined( POWER_SAVING )
/* Allow sleep before the next OSAL event loop */
ALLOW_SLEEP_MODE();
#endif
/**********************************************************************/
/*****************************hal_mcu.h******************************/
#ifdef POWER_SAVING
extern volatile __data uint8 halSleepPconValue;

/* Any ISR that is used to wake up the chip shall call this macro. This prevents the race condition
* when the PCON IDLE bit is set after such a critical ISR fires during the prep for sleep.
*/
#define CLEAR_SLEEP_MODE() st( halSleepPconValue = 0; )
#define ALLOW_SLEEP_MODE() st( halSleepPconValue = PCON_IDLE; )
#else
#define CLEAR_SLEEP_MODE()
#define ALLOW_SLEEP_MODE()
#endif

/************************************************************************/
So can i convert these pre defined macros to if-else statement?Is this change allowed in Zstack.

Thanks
Amit

Hi Y.Chen ,

Thanks for the reply.
So i will not change anything in the Zstack but there are certain code part which we cannot access from the application files if we are completely relying on macros in stack.We are able to access variables in the stack from application files but there are certain functions (related to power management configuration) which cannot be accessed from the application files.So is there any other way to access these functions.
For example..
/****************************hal_drivers.c******************************/
#if defined( POWER_SAVING )
/* Allow sleep before the next OSAL event loop */
ALLOW_SLEEP_MODE();
#endif
/**********************************************************************/

Thanks
Amit Kumar

Can you elaborate why you have to use ALLOW_SLEEP_MODE?

Hi Y.Chen,

The thing is that when power saving is not enabled then no sleeping (ALLOW_SLEEP_MODE) occurs before each event loop.But as per the example code they have given if power saving is enabled sleeping((ALLOW_SLEEP_MODE()) will be executed before each event loop occurs.As this sleeping function ((ALLOW_SLEEP_MODE()) is a part of stack and is defined with macros as i gave in the previous discussion I am not able to access this as per my requirement.

Thanks
Amit Kumar

I have told you that you can call osal_pwrmgr_device( PWRMGR_ALWAYS_ON ) to disable POWER_SAVING and call osal_pwrmgr_device( PWRMGR_BATTERY ) when you want to enable POWER_SAVING again.