nRF52 Ble Bonding freezing Error

[Empe]

Hi, Dev Zone.

thanks for help : )

i'm try to porting DK Board's ble Boanding function to Target Board.

DK is working success.

refer to 16.0.0 SDK and 7.0.1 Soft device

when i boot my target board, it's look like freezing.

target board also using nRF52840 same SDK and softdevice

run on free RTOS 

so, i was check "https://devzone.nordicsemi.com/f/nordic-q-a/51449/lesc-and-freertos" this issue and adjust it 

non inturrupt lib and disable mecro and enough thread size

i find error point, try to solve but i it's hard to me,

error point is here 

in cc310_backend_rng.c

err_code = CRYS_RndInit(&p_ctx->crys_rnd_state, p_work_buffer); // Fail
ret_val = result_get(err_code);

before this function, i can check print debug message

and &p_ctx->crys_rnd_state, p_work_buffer

both variable's ram address also

but when PC goto CRYS_RndInit() function it's frozen

[Empe]

Hello, Dev Zone

new update and get another question

today, i was changed config option that

"NRF_CRYPTO_BACKEND_CC310_INTERRUPTS_ENABLED" TRUE to FALSE
then it looks like solve freezing problem

this is Error and Info log message

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Connected // << try to ble connect nRF Connect App and nRF52840
Data len is set to 0xF4(244)

// << try to Bonding
BLE_GAP_EVT_LESC_DHKEY_REQUEST
Connection security failed: role: Peripheral, conn_handle: 0x0, procedure: Bonding, error: 1
BLE_GAP_EVT_AUTH_STATUS: status=0x1 bond=0x0 lv4: 0 kdist_own:0x0 kdist_peer:0x0
Disconnected

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////

to solve this problem,

what can i check next

thanks for help
Best Regardes

[ovrebekk]

Hi 

Have you tried to run exactly the same code on the DK (after setting "NRF_CRYPTO_BACKEND_CC310_INTERRUPTS_ENABLED" TRUE to FALSE) and see if the DK works, or if you have the same problem on the DK and on the target board?

Are you able to get a sniffer trace of the connection and pairing stage?
If you don't have access to a professional Bluetooth sniffer it is possible to use a Nordic DK as a sniffer as explained here. 

Best regards
Torbjørn

[Empe]

Hi, Torbjørn

thanks to reply my question.

first i use default setting "use Interrupts" in DK

and target board use freeRTOS, that's why we don't use interrupts.

To tell you the conclusion now it's working well !

main problem is mutex error.

block all cc310_mutex_trylock function and then replace freeRTOS's mutec function.
and then it's working well : )

i cna check BONEDE sign iin NRF Connect app

so, now i'm trying to check that sniffer is block or not
thanks for information.

best regardes, Empe

[ovrebekk]

Hi

I am glad to hear you found the solution. I will consider the case resolved then

Best regards
Torbjørn