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

[Lee]

Hi All:
I am using NRF51802 ,SDK is 12.30 version, and softdevice is s130 2.0.1 version. using keil MDK 5.23 Version. And download the softdevice using nrfgostudio and keil both test,setting the IRAM1: start is 0x1B000,size is 0x25000, IRAM1 setting is :0x20002000 and size is 0x2000, when i download the application (C:\nRF5_SDK_12.3.0_d7731ad\examples\ble_peripheral\ble_app_uart\pca10028\s130\arm5_no_packs directory following 's project into the board),the system will not work because the fault as following : SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);
My board using 16MHZ SMD3225,and no 32.768KHZ crystal. Why .Would you please help me to resolve it ?

[Kenneth]

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,
};

[msharhan]

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
}