Zigbee Light Switch Example running with internal RC

[Ignacio Lopez]

Is it possible to run the Zigbee Light Switch example with the internal RC.?

On the sdk_config.h I have changed the following:

#define NRFX_CLOCK_CONFIG_LF_SRC 0

But the device will get stuck at ZB_INIT() call, specifically on this function:

Any help is most welcome!

Thanks

[Simonr]

Hi

It should not be an issue using the internal RC oscillator in Zigbee projects. However, you have to do a few more changes in your sdk_config.h file in order to enable the RC oscillator. Please make sure that the following defines are changed to the values below:

// <o> CLOCK_CONFIG_LF_SRC  - LF Clock Source
 
// <0=> RC 
// <1=> XTAL 
// <2=> Synth 
// <131073=> External Low Swing 
// <196609=> External Full Swing 

#ifndef CLOCK_CONFIG_LF_SRC
#define CLOCK_CONFIG_LF_SRC 0
#endif

// <q> CLOCK_CONFIG_LF_CAL_ENABLED  - Calibration enable for LF Clock Source
 

#ifndef CLOCK_CONFIG_LF_CAL_ENABLED
#define CLOCK_CONFIG_LF_CAL_ENABLED 1
#endif

// <o> CLOCK_CONFIG_IRQ_PRIORITY  - Interrupt priority
 

// <i> Priorities 0,2 (nRF51) and 0,1,4,5 (nRF52) are reserved for SoftDevice
// <0=> 0 (highest) 
// <1=> 1 
// <2=> 2 
// <3=> 3 
// <4=> 4 
// <5=> 5 
// <6=> 6 
// <7=> 7 

// <o> NRFX_CLOCK_CONFIG_LF_SRC  - LF Clock Source
 
// <0=> RC 
// <1=> XTAL 
// <2=> Synth 
// <131073=> External Low Swing 
// <196609=> External Full Swing 

#ifndef NRFX_CLOCK_CONFIG_LF_SRC
#define NRFX_CLOCK_CONFIG_LF_SRC 1
#endif

Best regards,

Simon

[Ignacio Lopez]

Hi Simonr,

Thanks for your reply. I believe the suggested changes are suitable for a project that uses a softdevice implementation. The Zigbee Light Switch example uses the ZBOSS library. The options mentioned are not listed on the sdk_config.h file of the Zigbee Light Switch example. Could you try to modify the code as I suggested and run the project on debug mode? Can you see if the micro executes any further than the ZB_INIT() function or it gets stuck there?

Many thanks