Loading ble_app_beacon on a custom board, stucking at sd_softdevice_enable

[fercholas]

Hi guys

I'm trying to load the ble_app_beacon project on a custom board. I am able to flash the softdevice and the application, but the chip is not advertising. So, I started debugging the chip using Eclipse and I noticed that it fails after calling sd_softdevice_enable, but I am unable to read error code.

Important information:

Chip: NRF51822 QFABC0

SDK: v10.0.0

Softdevice: : v8.0

ble_app_beacon_gecc_nrf51.dl :

/* Linker script to configure memory regions. */

SEARCH_DIR(.)
GROUP(-lgcc -lc -lnosys)

MEMORY
{
   FLASH (rx) : ORIGIN = 0x00018000, LENGTH = 0x20000
   RAM (rwx) :  ORIGIN = 0x20000000, LENGTH = 0x4000
}

SECTIONS
{
   .   fs_data_out ALIGN(4):
{
   PROVIDE( __start_fs_data = .);
   KEEP(*(fs_data))
   PROVIDE( __stop_fs_data = .);
 } = 0
}

 INCLUDE "nrf5x_common.ld"

Based on this post Why does the softdevice initialization hang?

I figured out that I had to change the clock source to:

SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_RC_250_PPM_4000MS_CALIBRATION, NULL);

because my custom board does not have an external 32 kHz crystal.

Unfortunately, the issue continues.

Any idea what could be happening?

Thanks in Advance

[fercholas]

Hi Ole

I found the problem. The IROM and IRAM configuration was wrong. The correct setting is:

MEMORY
{  
   FLASH (rx) : ORIGIN = 0x00018000, LENGTH = 0x8000
   RAM (rwx) :  ORIGIN = 0x20002000, LENGTH = 0x2000
}

People can check the chips revision's configuration here:

ROM and RAM Management

Thanks for your help!

[Ole Bauck]

Good catch, I guess I should have looked more closely on the addresses and sizes, pretty standard problem.