Hi , I am Using Segger Embedded stodio . __no_init not work ?

[zvikag]

Hi , 

I am running example in nrf52840 using segger embedded studio .

And i am trying to define __no_init variant , 

May be sameone know what is the syntax . in IAR __no_init works great.

Thanks,

Zvika

[tesc]

Hi,

__no_init is specific to IAR. There is an example in the SDK where __no_init is used for IAR and other constructs are used for ARM, GNUC and SES. See <sdk_15>\components\libraries\bootloader\dfu\nrf_dfu_settings.c.

From what I understand, your line for a SES project would be something like this:

unsigned int xxxx __attribute__((used));

I recommend that you read up on __attribute__((used)) in order to determine if that is indeed what you are looking for.

Regards,
Terje

[awneil]

tesc said:

unsigned int xxxx __attribute__((used));

No - I think what you need is:

unsigned int xxxx   __attribute__ (( section(".non_init") ));

See: devzone.nordicsemi.com/.../132658

I didn't find this anywhere in the Segger documentation but, as SES seems to be based on Rowley CrossWorks, googling led me to find it here:

https://rowley.zendesk.com/hc/en-us/community/posts/205387063--have-variables-which-aren-t-initialized-and-survive-a-reset-

[tesc]

Hi,

Yes, that seems more like it! Thanks for correcting me.

Regards,
Terje