[nRF52832][S132 v3.0.0] Program hangs on sd_softdevice_enable function

[jb1]

Hello I have a problem with my code implementing BLE NUS peripheral. Program hangs in the function sd_softdevice_enable. I have tried with external oscillator and with internal RC, the same behaviour. I can tell that everything works ok with compiled hex file by nordic of BLE beacon profile. So I am sure that the problem is in my code. The hardware is ok. Please can someone help me to solve this problem. Greetings jb

The rest of the source code is included without any changes from sdk12. bluetooth.c main.cpp gcc_startup_nrf52.S nrf5x_common.ld nrf52_xxaa.ld Makefile sdk_config.h

[Matt]

Are you sure you are using sdk12? That Makefile you list here looks a bit different from what I'm using in my sdk12 development environment. Are you using PCA10040 or your own custom board?

[endnode]

How do you know that everything works OK if you cannot pass through SOFTDEVICE_HANDLER_INIT which is called pretty much immediately after the boot? Also this code is very far from NUS example in nRF5 SDK, do you have anything closer to that which works?

[jb1]

At first thank You for Your quick responses. When I upload prepared hex file by Nordic to my nrf52 I can see the beacon on my smartphone so I think that hardware is OK. Yes, I am sure that using SDK 12. It isn't PCA10040, it is a module with NRF52832 from China. But as You see upper it works. I have used very similar code to work with NRF51822 and there was everything allright. I wouldn't say that this code is so different. I omitted only the bsp part (LEDs and Buttons configuration, I don't have them). The rest is the same. Maybe do You have any other suggestions?

nrf52_blink_led.hex

[endnode]

I would say your project is only vaguely inspired by Nordic nRF5 SDK examples. It uses ST32 Cube SDK Makefile formatting (probably also used in many other SDKs and projects), it uses C/C++. But if you are sure that it fails on SOFTDEVICE_HANDLER_INIT then it's most probably your Chinese cheap board and HF/LF crystals there.

[jb1]

So why is it working when I upload hex from Nordic? Maybe could You upload my hex to Your original board and test if my crystal is wrong.

nrf52_blink_led.hex