nRF9160 modem with secure firmware

[Siddharth Kachhia]

Hi !

While updating nRF91 modem firmware, found that modem library can be used with non-secure(ns) board only and not with secure board.
On configuring secure board with modem library, it produces an error of "nrf_modem_lib must be run as non-secure firmware". So that have to select non-secure(ns) board for nRF9160.

Image is attached for reference:

In nRF9160, want to use nRF91 secure board with nrf modem library for modem application.

Question:
1) When will you release nRF modem library for secure board ?
2) How would I integrate secure and non-secure peripheral in single application firmware which is for secure board.
3) When UARTE2 is configured as a secure, What is the effect of using it as a secure peripheral not non-secure ?

[Håkon Alseth]

Hi,

1) When will you release nRF modem library for secure board ?

This is a hardware restriction, so it will not be released.

2) How would I integrate secure and non-secure peripheral in single application firmware which is for secure board.

Please see the above answer.

3) When UARTE2 is configured as a secure, What is the effect of using it as a secure peripheral not non-secure ?

You will get a secure fault, as the non-secure configuration application isn't allowed to directly access the peripheral which is configured as secure.

 

Kind regards,

Håkon

[Siddharth Kachhia]

Does that mean if would like to use modem as non-secure, need to configure all peripheral(UART,I2C,SPI,RTC) as non secure only? Or there is any way for such secure peripheral communication?

[Håkon Alseth]

Hi,

 

Siddharth Kachhia said:

Does that mean if would like to use modem as non-secure, need to configure all peripheral(UART,I2C,SPI,RTC) as non secure only?

That is correct.

 

This is what the "spm" does. This is automatically built and added to your project when you build with a non-secure board, like nrf9160dk_nrf9160_ns.

Here's the documentation for SPM: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.8.0/nrf/libraries/others/spm.html

 

Kind regards,

Håkon

[ViodMian]

When I was developing the modem, the Build configuration was nrf9161ns and debugging was not possible. What should I do? I really hope you can reply to me. Thank you.

[Håkon Alseth]

ViodMian said:

When I was developing the modem, the Build configuration was nrf9161ns and debugging was not possible. What should I do? I really hope you can reply to me. Thank you.

Could you please create a new thread on this matter?

This thread is > 2 years old.

 

Kind regards,

Håkon