Fixed address variable in C

Question

For embedded applications, it is often necessary to access fixed memory locations for peripheral registers. The standard way I have found to do this is something like the f

Answer 1

A linker would typically use a linker script to determine where variables would be allocated. This is called the "data" section and of course should point to a RAM location. Therefore it is impossible for a variable to be allocated at an address not in RAM.

You can read more about linker scripts in GCC here.