Epson S5U1C17001C, Manual

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S5U1C17001C ManUal
EPSOn
5-143
(C COMPilEr PaCkagE fOr S1C17 faMily) (Ver. 1.5.0)
5 gnU17 iDE
5
IDE
Example 2: Changing the basic layout
Here, a ROM for storing constants is added to the system in Example 1. Shown below is an example of how to
locate the
.rodata
section.
Program
Variables
with initial values
Unused area
Vector table
Stack area
ROM 1
.data
section (LMA)
.text
section (LMA=VMA)
.vector
section (LMA=VMA)
Variables without initial
values and work area
Variables
with initial values
RAM
.data
section (VMA)
.bss
section (VMA)
Data
copied
Constants
and other static data
Unused area
ROM 2
.rodata
section (LMA=VMA)
0x008000
0x000fbf
0x000000
0x080000
Figure 5.7.6.4 Example of a memory configuration 2
Example of a source file configuration
boot.s
(vector table and stack initialization, etc.)
main.c
(main and other functions)
Editing of sections (contents set in the [Edit Section] dialog box)
Correct the
.rodata
and
.data
section information as shown below. Use all other sections with default set-
tings directly and unaltered.
1. Correcting the
.rodata
section
Correct [Virtual map address] to 0x080000.