I'm working on an application where I will be doing Field upgrading of the Flash on a Stellaris part. There is a portion of the memory that is the "stateful" variables that need to stay the same and survive a firmware upgrade. The hard way to do this looks to be assigning each variable to its own DATA_SECTION and manually placing them in the linker file. What I would like to do is create a C file, say StatefulVariables.c which uses SET_DATA_SECTION at the beginning and then know that as long as I don't change the definition of those variables, they will always show up in the same location even if the code, in other files, references them. The DATA_SECTION will be defined to a specific memory location in the linker file, but the individual variables in it will not be specified in the linker.
Am I putting too much trust in the linker to do the same thing, every time? If I created a structure with all the variables in it, would that help at all? Thanks for your help.
