Softdevice assertion failed on new hardware

RE: Softdevice assertion failed on new hardware

Sigurd — Wed, 24 Apr 2019 14:17:21 GMT

Hi Jaehong Park,

Based on your reply in your other post, I assume this is now resolved.

RE: Softdevice assertion failed on new hardware

Jaehong Park — Tue, 16 Apr 2019 05:54:22 GMT

Hi, there,

We have the same problem with the same pc-value in SDK 14.02 and nRF52832 with rc configuration. we got the same asset error from soft device even if we tested another ble_peripheral examples in the SDK. please let me know the reason.

RE: Softdevice assertion failed on new hardware

33 — Wed, 07 Nov 2018 02:15:36 GMT

Hi Aaron

I have same problem ，how you solve it?

RE: Softdevice assertion failed on new hardware

Aaron — Wed, 10 Oct 2018 18:54:29 GMT

Thanks. It turns out the be a hardware problem, the HF crystal was missing entirely on the initial board I got.

RE: Softdevice assertion failed on new hardware

Sigurd — Wed, 10 Oct 2018 11:33:53 GMT

Hi,

Based on the PC value I would guess this is S132 v.6.0.0 ? If that is correct, it looks like some timing issues are causing the assert. As Jing suggested, you should try to use the RC oscillator as the clock source for the SoftDevice, and with the following configuration in sdk_config.h

Snippet:

//==========================================================

// <h> Clock - SoftDevice clock configuration

//==========================================================
// <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
#endif

// <o> NRF_SDH_CLOCK_LF_RC_CTIV - SoftDevice calibration timer interval. 
#ifndef NRF_SDH_CLOCK_LF_RC_CTIV
#define NRF_SDH_CLOCK_LF_RC_CTIV 16
#endif

// <o> NRF_SDH_CLOCK_LF_RC_TEMP_CTIV - SoftDevice calibration timer interval under constant temperature. 
// <i> How often (in number of calibration intervals) the RC oscillator shall be calibrated
// <i>  if the temperature has not changed.

#ifndef NRF_SDH_CLOCK_LF_RC_TEMP_CTIV
#define NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 2
#endif

// <o> NRF_SDH_CLOCK_LF_ACCURACY  - External clock accuracy used in the LL to compute timing.
 
// <0=> NRF_CLOCK_LF_ACCURACY_250_PPM 
// <1=> NRF_CLOCK_LF_ACCURACY_500_PPM 
// <2=> NRF_CLOCK_LF_ACCURACY_150_PPM 
// <3=> NRF_CLOCK_LF_ACCURACY_100_PPM 
// <4=> NRF_CLOCK_LF_ACCURACY_75_PPM 
// <5=> NRF_CLOCK_LF_ACCURACY_50_PPM 
// <6=> NRF_CLOCK_LF_ACCURACY_30_PPM 
// <7=> NRF_CLOCK_LF_ACCURACY_20_PPM 
// <8=> NRF_CLOCK_LF_ACCURACY_10_PPM 
// <9=> NRF_CLOCK_LF_ACCURACY_5_PPM 
// <10=> NRF_CLOCK_LF_ACCURACY_2_PPM 
// <11=> NRF_CLOCK_LF_ACCURACY_1_PPM 

#ifndef NRF_SDH_CLOCK_LF_ACCURACY
#define NRF_SDH_CLOCK_LF_ACCURACY 1
#endif

RE: Softdevice assertion failed on new hardware

jing — Wed, 10 Oct 2018 02:09:54 GMT

If your firmware is configured for NRF_CLOCK_LF_SRC_XTAL, you may want to try changing to NRF_CLOCK_LF_SRC_RC.

jing