My code based assignments are almost always grouped in with the code modules that utilize the particular global variables. Most times I group all the things related to a certain peripheral or function onto a small C file that also has its companion .H file. One entry point in each of these files is a subroutine named xxxx_init() that can be called from the main() initial code. These entry points can also be called at such times as may be necessary to reset the functions of a peripheral or process and then re-initialize it back to startup conditions.

This coincides with the item #1 in my previous posting here in that it is easiest to see things related to variable initialization near to the companion code that uses the variables.

Michael Karas