Hi,
Kindly help with some insights/tip on how to debug this hardfault. The code gives hardfault on my custom board, but not on NRF52-DK. My custom device is only populated with 32Mhz osc and not the 32khz. However, I have configured LFCLK source to internal RC - please see the Init code at the end.
backtrace:
sd_softdevice_enable (p_clock_lf_cfg=0x2000ff78, fault_handler=fault_handler@entry=0x24089 <softdevice_fault_handler>) at ../components/softdevice/s132/headers/nrf_sdm.h:286
286 SVCALL(SD_SOFTDEVICE_ENABLE, uint32_t, sd_softdevice_enable(nrf_clock_lf_cfg_t const * p_clock_lf_cfg, nrf_fault_handler_t fault_handler));
>>> bt
#0 sd_softdevice_enable (p_clock_lf_cfg=0x2000ff78, fault_handler=fault_handler@entry=0x24089 <softdevice_fault_handler>) at ../components/softdevice/s132/headers/nrf_sdm.h:286
#1 0x000241a0 in softdevice_handler_init (p_clock_lf_cfg=p_clock_lf_cfg@entry=0x2000ff78, p_ble_evt_buffer=p_ble_evt_buffer@entry=0x200024d8 <BLE_EVT_BUFFER.11047>, ble_evt_buffer_size=ble_evt_buffer_size@entry=80, evt_schedule_func=evt_schedule_func@entry=0x0) at ../components/softdevice/common/softdevice_handler/softdevice_handler.c:300
#2 0x00022520 in ble_stack_init () at ./main.c:408
#3 main () at ./main.c:636
info registers:
>>> info registers
r0 0x2000ff78 536936312
r1 0x24089 147593
r2 0x50 80
r3 0x0 0
r4 0xe000e100 3758153984
r5 0x2000288a 536881290
r6 0x0 0
r7 0x0 0
r8 0x0 0
r9 0x0 0
r10 0x20000000 536870912
r11 0x0 0
r12 0xb 11
sp 0x2000ff40 0x2000ff40
lr 0x241a1 147873
pc 0x2407c 0x2407c <sd_softdevice_enable>
xpsr 0x41000003 1090519043
msp 0x2000ff40 536936256
psp 0x0 0
primask 0x0 0
basepri 0x0 0
faultmask 0x0 0
control 0x0 0
My BLE init code is :
#define NRF_CLOCK_LFCLKSRC_RC {.source = NRF_CLOCK_LF_SRC_RC, \
.rc_ctiv = 0, \
.rc_temp_ctiv = 0, \
.xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_250_PPM}
static void ble_stack_init(void)
{
uint32_t err_code;
nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC_RC;
// Initialize SoftDevice.
SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);
ble_enable_params_t ble_enable_params;
err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT,
PERIPHERAL_LINK_COUNT,
&ble_enable_params);
APP_ERROR_CHECK(err_code);
//Check the ram settings against the used number of links
CHECK_RAM_START_ADDR(CENTRAL_LINK_COUNT,PERIPHERAL_LINK_COUNT);
// Enable BLE stack.
#if (NRF_SD_BLE_API_VERSION == 3)
ble_enable_params.gatt_enable_params.att_mtu = NRF_BLE_MAX_MTU_SIZE;
#endif
err_code = softdevice_enable(&ble_enable_params);
APP_ERROR_CHECK(err_code);
// Subscribe for BLE events.
err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
APP_ERROR_CHECK(err_code);
}
Please let me know what other information is required to conclude what is the issue causing the hardfault
-------EDIT-----------
I changed the calibration parameters to:
#define NRF_CLOCK_LFCLKSRC_RC {.source = NRF_CLOCK_LF_SRC_RC, \
.rc_ctiv = 16, \
.rc_temp_ctiv = 2, \
.xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_20_PPM}
Yet I still get hardfault.
