SDK14 ble_periphal example dont work

Question

Hi,
i downloaded new SDK14 with example, after i upload hex from example in ble_peripheral/ble_app_hrs
I use s132 / nrf52 
 program stuck here : 
 ret_code_t nrf_sdh_enable_request(void)
{
 ret_code_t ret_code;

 if (m_nrf_sdh_enabled)
 {
 return NRF_ERROR_INVALID_STATE;
 }

 m_nrf_sdh_continue = true;

 // Notify observers about SoftDevice enable request.
 if (sdh_request_observer_notify(NRF_SDH_EVT_ENABLE_REQUEST) == NRF_ERROR_BUSY)
 {
 // Enable process was stopped.
 return NRF_SUCCESS;
 }

 // Notify observers about starting SoftDevice enable process.
 sdh_state_observer_notify(NRF_SDH_EVT_STATE_ENABLE_PREPARE);

 nrf_clock_lf_cfg_t const clock_lf_cfg =
 {
 .source = NRF_SDH_CLOCK_LF_SRC,
 .rc_ctiv = NRF_SDH_CLOCK_LF_RC_CTIV,
 .rc_temp_ctiv = NRF_SDH_CLOCK_LF_RC_TEMP_CTIV,
 #ifdef S132
 .accuracy = NRF_SDH_CLOCK_LF_XTAL_ACCURACY
 #else
 .xtal_accuracy = NRF_SDH_CLOCK_LF_XTAL_ACCURACY
 #endif
 };

 #ifdef ANT_LICENSE_KEY
 ret_code = sd_softdevice_enable(&clock_lf_cfg, app_error_fault_handler, ANT_LICENSE_KEY);
 #else
 ret_code = sd_softdevice_enable(&clock_lf_cfg, app_error_fault_handler);
 #endif

 if (ret_code != NRF_SUCCESS)
 {
 return ret_code;
 }
 
 on ret_code = sd_softdevice_enable(&clock_lf_cfg, app_error_fault_handler); 
 same problem is, if i recomplile whole project a load new one. 
 could someone help me, where is the problem ?
regards

MartinBL · Accepted Answer

According to chapter 2.1 "Specification Summary" in the Datasheet for the BL652 module there are no 32.765kHz crystal on the module:

optional

There seems to be one on the LAIRD BL652 development kit though, but it has to be connected to the module with solderbridges SB8 & 9:

laird

You can also change the LF clock source in your code in sdk_config.h by setting:

// <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 0 // <- Set to zero to use internal RC oscillator
#endif

SDK14 ble_periphal example dont work

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