QSPI ready wait never returns

Question

Hi!
I made a custom board with an external flash memory that communicate with nRF52840 through QSPI.
I have some boards that works very well, but i have someones that freeze when I call nrfx_qspi_init(). I found that when I run the code in debug mode, the function NRFX_WAIT_FOR inside qspi_ready_wait works well, but when I use the release profile the application freeze in NRFX_WAIT_FOR.
Somebody know the reason?

PS: I use SEGGER EMBEDDED STUDIO, my application has the NRF BUTTONLESS BOOTLOADER, but I think that isn't the problem...

Franco Fischer · Answer

I found the error.
I use the GPIOTE for another peripherals, and due to the external flash memory has some pins uncorrect soldered (I think that CS pin is shorted to ground), the function port_event_handle on nrfx_gpiote.c stucks on the for loop because latch_pending_read_and_check never returns false. So, when nrfx_qspi_init returns an error I disable the QSPI hardware with nrfx_qspi_uninit.
Please close the ticket. Thanks!