This article explains by example how to manage memory sections.

A segment is a piece of code in memory space. We can manage segments collecting them at classes. For example a segment may be stored in flash memory but the execution address may be set in RAM. It is important for you to have a look at some Keil links:

IMPORTANT  KEIL LINKS TO READ:

SEGMENTS      CLASSES  SROM  APNT 120  APNT 121  APNT 122   APNT 129 

APNT 138    IMPORTANT!!!

As an example of segment management we will give a solution of the example 4 of the article 10.We give two projects: one in the folder MEMORY;;; and the other in the folder MEMORY OK!

Take them.

At both projects we added a separate .C file, the TEXT2.C file that includes the string
char far *string4 ="12345" . So, we have a clear segment ,the ?FC?TEXT2 segment that belongs to the FCONST class and we write:

 ?FC?TEXT2 %FCONST

Now in MEMORY;;;  project this segment is stored in flash and is executed from flash , but in
MEMORY OK! project the same segment is stored in flash but it is executed in RAM.

Important: watch the R.M66 map file as a text file.

see the story!

Exercise 1: Repeat the projects using the original string of the example 4 that is in TEXT2.C file.

Exercise 2: Give a solution of the example 4 using strcpy() function.