sd_softdevice_enable hangs using GCC, not with Keil

[Jacob Portukalian]

In porting over my project from Keil to GCC using SDK 8.1.0 I can build and run just fine when I build with Keil but when I build with GCC and try to run sd_softdevice_enable hangs. I have been combing over the linker scripts and everything looking for clues but I cannot figure out what the issue is.

• Yes, I do have stack 8.0.0 flashed to the chip.
• I am using a linker file that has the same ram/flash addresses as the Keil project

Another oddity is that the device advertises ok but when I connect it crashes. When using Keil it works perfectly.

If there is anything I can post here to clarify the situation, please let me know.

Thanks!

Answer:

I defined SPI_MASTER_0 instead of SPI_MASTER_0_ENABLE in my makefile which is why Keil and GCC exhibited different behavior. Pretty embarrassing. Don't do this.

[Nguyen Hoan Hoang]

Try to breakpoint in the connect event. See if it reaches it when you try to connect. There may be an error code returned somewhere. The default behaviour on error condition is to cause an exception and hangs there.

[Susheel Nuguru]

how can your device advertise if it hangs in sd_softdevice_enable? Maybe the second error is in Keil?

[Jacob Portukalian]

good question! I'm as mystified as you are

[Jacob Portukalian]

If I debug and hit 'continue' it will start advertising but then it stops because the debugger keeps coming back to the breakpoint set at main.

[Susheel Nuguru]

That is because your system is resetting due to APP_ERROR_CHECK somewhere. The default behavior for this is NVIC_SystemReset, you find this is components\libraries\util\app_error.c:app_error_handler()