NRF54H20 GPIO CONFIG ISSUE

[summer]

Hi,

     I used the NCS SDK, the sdk version number is v2.7.99-cs2, and the chip I tested is NRF54H20.

     I used registers to configure GPIO. I tested GPIO P1.00, P1.01, and P1.02,These three GPIOs were configured as output, and then flipped every 100ms in the main loop, I found that these three GPIOs did not take effect, this is the program I configured:

   

   PS: I don't want to use the configuration method in GPIo.h in the NCS SDK, I want to use the register to configure GPIO myself, is there anything wrong with my method?

     

[hmolesworth]

Might have to set SPU like this, so feature is available for non-secure usage; maybe worth a try:

// Ensure Feature is available for non-secure usage
NRF_SPU20_S->FEATURE.GPIO[1].PIN[0] = 0;
NRF_SPU20_S->FEATURE.GPIO[1].PIN[1] = 0;
NRF_SPU20_S->FEATURE.GPIO[1].PIN[2] = 0;

Similar to nRF54L15 bare metal port code I posted here: reserved-resources-for-zephyr-ncs

[summer]

Hi,hmolesworth

   thanks,but  the nrf54h20_global.h file has no definition of the NRF_SPU20_S register.

[hmolesworth]

Ah, I only have access to nRF54L15, not nRF54H20 data:

// SPU00 Supports FEATURE.GPIO[n]  GPIO P2 and x00 UARTE00 is 74-64   = SPU00 Index 10
// SPU10 Supports                  RADIO   and x10
// SPU20 Supports FEATURE.GPIO[n]  GPIO P1 and x20 UARTE20 is 198-192 = SPU20 Index 6
// SPU30 Supports FEATURE.GPIO[n]  GPIO P0 and x30 UARTE30 is 260-256 = SPU30 Index 4