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

Often, for embedded software, you can define within the linker file one area of RAM for linker-assigned variables, and a separate area for variables at absolute locations, which the linker won't touch.

Failing to do this should cause a linker error, as it should spot that it's trying to place a variable at a location already being used by a variable with absolute address.