Bluetooth low energy Advertising not working

[JohnSou]

Hi. i'm using IAR and St-link to program the nRF52832, and run this tutorial on my custom board, but the Bluetooth has not been set up by the method that you proposed. and also the crystal dose not work because when i set the delay on for example:500 ms, my real waiting time is almost 4 seconds.please help me to set the out put crystal and set up the Bluetooth. Thank you.

[BinderT]

Set the following to synth

// <o> NRF_SDH_CLOCK_LF_SRC  - SoftDevice clock source.
 
// <0=> NRF_CLOCK_LF_SRC_RC 
// <1=> NRF_CLOCK_LF_SRC_XTAL 
// <2=> NRF_CLOCK_LF_SRC_SYNTH 

#ifndef NRF_SDH_CLOCK_LF_SRC
#define NRF_SDH_CLOCK_LF_SRC 2
#endif

This will confirm if it is a hardware fault.

Chip usually outright hangs if the LF_XTAL is not set correctly. Check all configs related to the LF_XTAL.

[JohnSou]

Hi BinderT,

Thanks for your reply.

Actually I am working on XL52832-D01 board. how to config LF_XTAL related to this board?

[Vidar Berg]

The clock configuration is not board dependent. You can find the clock settings in the sdk_config.h header for your project.

[JohnSou]

I know that clock configuration is not board dependent. This is an example from nordic and I did not change it. My question is that why it is not working with my board.

[Vidar Berg]

JohnSou said:

how to config LF_XTAL related to this board?

It may be a problem with the LF crystal as BinderT suggested. Try to build your project with NRF_SDH_CLOCK_LF_SRC set to '2' in sdk_config.h and see if that helps. This setting will make the Softdevice use LFSYNT instead of the external 32.768 kHz crystal.