ASSERTION FAILED when using spin_uninit function

[cabin]

Hi

SDK version : 17.0.0

SWDevide : s112_nrf52_7.3.0_softdevice.hex

To reduce current consumption, nrfx_spim_uninit(&spim) is used in sleep mode. But when I use it, I get an error as below.

ASSERTION [ID = 4002]  [ID = 0] [PC = 2000FF80] [info = 0]

ASSERTION FAILED at D:\A_IDE_SES\nrfx_spim.c:349

What's the matter?

BR

Cabin

[Vidar Berg]

Hi,

I don't see an ASSERT() at line 349 in nrfx_spim.c (https://github.com/NordicSemiconductor/nrfx/blob/v1.8.4/drivers/src/nrfx_spim.c). There is however one above at line 339, is that the one that is failing? 

Best regards,

Vidar

[cabin]

Hi

Yes that's right

Thank you

[Vidar Berg]

So, the assert i raised because the state flag is already set to 'NRFX_DRV_STATE_UNINITIALIZED' when you call nrfx_spim_uninit(). Have you made any changes to nrfx_spim.c since the line numbers don't match?

[cabin]

Hi

Thanks for your reply.

Is there anything I need to do before uninit to resolve NRFX_DRV_STATE_UNINITIALIZED?
Since it is a necessary function for current consumption, it cannot be subtracted.

[Vidar Berg]

Hi,

cabin said:

Is there anything I need to do before uninit to resolve NRFX_DRV_STATE_UNINITIALIZED?

The assertion indicates that the driver was already uninitialized when you called nrfx_spim_uninit(). This should only happen if you have not called nrfx_spim_init() first, or if you attempted to uninitialized the driver twice.