nrf52832 custom board power on question

[ytpark]

onkey_full_20170814.hex onkey_0000.hex onkey_boot_s132.hex This time 14.0 sdk was updated.

There was a problem after the update

Problems when uploading bootloader

1. custom board : remove 32.76khz cyristal

• Power on -> do not run -> hw reset -> run

• power on -> do not run -> power off -> power on -> do not run -> hw reset -> run

2. custom board : No remove 32.76khz cyrisal

• power on -> run -> power off -> power on -> run -> hw reset -> run

Why does not runing the board remove 32.76khz cyristal?

The code changes below : (nrf_sdh.c) 168 line

nrf_clock_lf_cfg_t const clock_lf_cfg =
{
    .source        = 0,
    .rc_ctiv       = 16,
    .rc_temp_ctiv  = 2,
#ifdef S132
    .accuracy      = 7
#else
    .xtal_accuracy = NRF_SDH_CLOCK_LF_XTAL_ACCURACY
#endif
};

[ytpark]

Fixed the above problem.

The cause is the wrong setting of CLOCK_CONFIG_LF_SRC.

#define CLOCK_CONFIG_LF_SRC 1 -> #define CLOCK_CONFIG_LF_SRC 0

Thank you for your help so far.