MISO Pin not working properly in SPIS mode

[AhmedPs19]

Hello,

I am using a custom NRF5340 board and trying to run SPIS related code. The issue I am facing is that MISO pin kept low during the complete transaction . My pin configurations are following

#define APP_SPIS_CS_PIN             NRF_GPIO_PIN_MAP(1 , 6)
#define APP_SPIS_MISO_PIN           NRF_GPIO_PIN_MAP(0 , 19)
#define APP_SPIS_MOSI_PIN           NRF_GPIO_PIN_MAP(0 , 21)

#define APP_SPIS_SCK_PIN           NRF_GPIO_PIN_MAP(1 , 4)

Please advise me what can be the cause of this issue. I have test the same code on NRF5340 dk with different pins it was working fine.

Regards

Ahmed

[AhmedPs19]

Naeem Maroof said:

specification

I have tried it in both ways , i.e in H0H1 and S0S1 . Nothing worked on P0.19.

Regards,

Ahmed

[Naeem Maroof]

Is it reproducible on the DK?

You may look at the PIN_CNF register for both the pins in consideration and see if there are any differences.

Also, on the custom board vs the DK.