How to use the static variables in other files? like use m_hrs_c in files other than main.c

[daoms]

It's a coding question. Maybe it has nothing to do with NRF.

I'm playing the central example hrs. I have a custom .c file that wants to access the m_hrs_c variable defined in main.c.

Because m_hrs_c  is defined as a static variable, I cannot access it in my c file.

I tried to define m_hrs_c  as a GLOBAL variable(like  ble_hrs_c_t m_hrs_c2;), yes it is accessible now.

But some places this GLOBAL  doesn't work. I think some data are not filled correctly, as it is a complicated structure.

What's the right way to use this static variable in other files?Thanks.

[Kenneth]

If a variable is declared with static keyword, then it is only accessible in the local file, ref:
https://stackoverflow.com/questions/3684450/what-is-the-difference-between-static-and-extern-in-c/49093474

So if you want to access the variable from a different c file, then you can use the extern keyword.