nRF51802 ，using S130 2.0.1 ,and SDK is SDK 12.30 version

RE: nRF51802 ，using S130 2.0.1 ,and SDK is SDK 12.30 version

msharhan — Mon, 12 Aug 2019 16:06:40 GMT

Thanks for answer.

I had exactly the same question and now it is resolved. Also, it was needed to change memory mapping like in this question

 MEMORY
{
    FLASH (rx) : ORIGIN = 0x1b000, LENGTH = 0x25000
    RAM (rwx) : ORIGIN = 0x20001fe8, LENGTH = 0x2018
}

RE: nRF51802 ，using S130 2.0.1 ,and SDK is SDK 12.30 version

Kenneth — Mon, 07 Jan 2019 16:17:06 GMT

What have you set NRF_CLOCK_LFCLKSRC to? You may try:

nrf_clock_lf_cfg_t clock_lf_cfg = 
{
    .source = NRF_CLOCK_LF_SRC_RC,
    .rc_ctiv = 16, // Interval in 0.25 s, 16 * 0.25 = 4 sec
    .rc_temp_ctiv = 2, // Check temperature every .rc_ctiv, but calibrate every .rc_temp_ctiv 
    .xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_250_PPM,
};