QSPI seems to still occupy its pins even if it is disabled.

[peter_liu]

I'am working on nrf52840 and base on a sample hci_spi. I use spi1 and tried several different pins, they all works fine.

but when i disable qspi and try to use the pins originally used by qspi, my spi1 failed.

.dts attached, test to use p0.19 as sck-pin.

2677.zephyr.dts

[Simon]

Would you be able to upload a simiplified sample that demonstrates your issue, such that I can investigate it on my side.

Best regards,

Simon

[peter_liu]

Problem solved, i review the schematic of  nRF52840-DK, and find the p0.19 is not connected to gpio header(p24) by default, it is connected to flash. so after i cut the solder bridge SB11 and short SB21, it works.