Nrf9160 problem with custom Secure Partition Manager

RE: Nrf9160 problem with custom Secure Partition Manager

Gioele — Fri, 29 Apr 2022 15:14:57 GMT

Perfect!

RE: Nrf9160 problem with custom Secure Partition Manager

Hung Bui — Thu, 07 Apr 2022 13:50:10 GMT

Hi Gioele,

UART1 is disabled by default, see nrf9160dk_nrf9160_ns.dts in \zephyr\boards\arm\nrf9160dk_nrf9160.

So you need to configure this in the overlay:

&uart1{

status = "okay";

rx-pin = <10>;
tx-pin = <11>;
current-speed = <115200>;

};

In addition, if you use the same pins on UARTE1 as the UART that used by SPM then you may need to disable the CONSOLE and UART on SPM child image.

I attached here an example that worked for me.

devzone.nordicsemi.com/.../uart_5F00_loopback.zip

RE: Nrf9160 problem with custom Secure Partition Manager

Gioele — Wed, 06 Apr 2022 15:51:13 GMT

Hi,

I use UARTE1.
This is my log:
And this is my .prj file:

CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_RESET_ON_FATAL_ERROR=n

And this is my .overlay file:

&uart1{
	rx-pin = <10>;
	tx-pin = <11>;
	current-speed = <115200>;
};

RE: Nrf9160 problem with custom Secure Partition Manager

Hung Bui — Wed, 06 Apr 2022 10:15:45 GMT

Hi Gioele,

Which UART peripheral are you planning to use ? Is it UARTE2 ?

Could you capture the log when you booting up, it should show which peripheral is secure and which is non secure. Something like this:

You may need to set CONFIG_SPM_NRF_UARTE2_NS=y in the spm project if you want to use UARTE2 in non-secure domain.

Could you let me know if you are testing with the example from the blog you referred to or you are testing with your own application ?