https://devzone.nordicsemi.com/f/nordic-q-a/63149/nrf5340---p0-10-not-working-as-spim-miso-on-non-secure-buildI&#39;m trying to use the nRF5340-PDK SPIM at 16MHz, which requires me to use SPIM4 and dedicated SPIM4 pins P0.08 - SCK for SPIM4 P0.09 - MOSI for SPIM4 P0.10 - MISO for SPIM4 See my other ticket: https://devzone.nordicsemi.com/f/nordic-q-a/62533en-USTelligent Community 13Tue, 30 Jun 2020 21:25:00 GMThttps://devzone.nordicsemi.com/thread/257673?ContentTypeID=1Tue, 30 Jun 2020 21:25:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d4ba822e-662d-4ba8-a9e4-760a2d427634Sigurd[quote userid="25696" url="~/f/nordic-q-a/63149/nrf5340---p0-10-not-working-as-spim-miso-on-non-secure-build"]Is this the same problem I&#39;m seeing?[/quote] <p>Yes, it definitely seems like that.</p> [quote userid="25696" url="~/f/nordic-q-a/63149/nrf5340---p0-10-not-working-as-spim-miso-on-non-secure-build"]Do you have a workaround?[/quote] <p>You can e.g. set&nbsp;<span>CPUNET_UARTE_PIN_RTS in nrf5340_cpunet_reset.c&nbsp;to&nbsp;a pin that you are not using. Try e.g. pin 7</span></p> <p><span>When building for network core, you then also might want to set&nbsp;network core&nbsp;<a href="https://github.com/nrfconnect/sdk-zephyr/blob/master/boards/arm/nrf5340pdk_nrf5340/nrf5340pdk_nrf5340_cpunet.dts#L96">uart0 rts-pin</a> to something else than 10, e.g. 7.</span></p><div style="clear:both;"></div>