RE: Assembly Startup Files.

George555 — Fri, 03 Apr 2020 20:56:25 GMT

Thanks for your help!

RE: Assembly Startup Files.

Håkon Alseth — Mon, 30 Mar 2020 06:47:41 GMT

Hi,

[quote user=""]ses_startup_nrf_common.s[/quote]

This file includes certain options, like running vectors in RAM etc, and a very crucial section, loading all sections marked "nrf_sections", which is used by basically all applications in the SDK.

[quote user=""]ses_startup_nrf51.s[/quote]

That is the startup file for nrf51, which holds a weak implementation of all interrupt vectors.

Weak means that you can override the definitions by declaring the interrupt handler in your application, thus it'll go there instead of the weak implementation in the asm file.

[quote user=""]thumb.crt0.s[/quote]

See here: https://studio.segger.com/index.htm?https://studio.segger.com/arm_crt0.htm

[quote user=""]I see different assembly files than the examples have. As long as the project above builds and runs fine can I add my own C code on top of it?[/quote]

I wouldn't recommend building on top of generic cortex asm files. Use the one's that matches the device you're running on, in this case nrf51.

Kind regards,

Håkon