can not control P1 with nrf5340_dk_nrf5340_cpuappns configuration

RE: can not control P1 with nrf5340_dk_nrf5340_cpuappns configuration

sean — Fri, 27 Mar 2020 01:16:00 GMT

Hi,Simon

Thanks to the help of Smile(Nordic FAE), we found the reason why P0.10 P0.25 P0.26 cannot be controlled.

In ncs\zephyr\boards\arm\nrf5340_dk_nrf5340\nrf5340_cpunet_reset.c P0.10 P0.12 P0.25 P0.26 use for uart.

RE: can not control P1 with nrf5340_dk_nrf5340_cpuappns configuration

sean — Wed, 25 Mar 2020 01:29:14 GMT

Hi,Simon

Thank you for your answer

Yes,I later found that there are some pins for special functions.

P0.02 P0.03 ->NFC1 NFC2(modify NRF_UICR_S->NFCPINS, these pins can be configed as gpio)

P0.04 ->AIN0 (disable adc in devicetree, this pin can be configed as gpio)

P0.19 P0.20 P0.21 P0.22->Debug uart log output (maintain uart function)

P0.13 P0.14 P0.15 P0.16 P0.17 P0.18 -> QSPI, these pins can be configed as gpio

P0.08 P0.09 ->I configed these pins as spi port.If disable spi,they can be controled as gpio.

But I still don't know how to control the level flip of the following pins

P0.10 P0.25 P0.26 (I still don't know what these pins are configured to do)

P0.00 P0.01->XL1 XL2 (how to config as gpio.I have tried to config to use RC Oscillator in menuconfig but it failed to compile)

RE: can not control P1 with nrf5340_dk_nrf5340_cpuappns configuration

Simon — Tue, 24 Mar 2020 12:01:23 GMT

For some pins, a solder bridge needs to be cut in order to use it as normal GPIO. Check out nRF53 PDK Solder bridge configutation for a more detail description.

RE: can not control P1 with nrf5340_dk_nrf5340_cpuappns configuration

sean — Fri, 20 Mar 2020 06:39:28 GMT

By modifying the spm.c Kconfig file, I can already control the output of P1.

But I still can't find out why I can't control part port of P0( only P0.07,P0.11,P0.23,P0.24,P0.27,P0.28,P0.29,P0.30,P0.31 can be controled).

main.c

Kconfig

spm.c

Log

RE: can not control P1 with nrf5340_dk_nrf5340_cpuappns configuration

sean — Thu, 19 Mar 2020 09:59:47 GMT

I found not all P0 can be controled.Only P0.07,P0.11,P0.23,P0.24,P0.27,P0.28,P0.29,P0.30,P0.31 can be control as GPIO.