Epson S5U1C17001C, Manual

Page: 610 / 742

S5U1C17001C ManUal
EPSOn
10-159
(C COMPilEr PaCkagE fOr S1C17 faMily) (Ver. 1.5.0)
10 DEBUggEr
10
Debugger
10.9 Parameter files
Parameter files are text files in which memory map information of the target system is written. The debugger reads
this file to create memory map information, based on which it performs the following processing:
• Checks whether software PC break addresses are within a valid mapped area
• Breaks at write operation to ROM area (only in simulator mode)
• Breaks at accessing undefined areas (only in simulator mode)
• Breaks when stack overflows (only in simulator mode)
• Refers TTBR at reset.
When a parameter file is loaded, the appropriate size of storage (required for all areas of memory written to the file)
is reserved in internal memory of your computer.
How to load a parameter file
A parameter file is loaded in the debugger by executing the
c17 rpf
command.
(gdb)
c17 rpf Filename
.par
(loads a parameter file to set a memory map.)
The IDE may be used to create a special command file, like the one loaded when the debugger starts. For
details about IDE , see Chapter 5, "GNU17 IDE".
Be sure to execute the
c17 rpf
command before the
file
,
target
, and
load
commands. The following
shows the basic sequence of command execution:
(gdb)
c17 rpf sample.par (sets map information.)
(gdb) file sample.elf
(loads debugging information.)
(gdb) target sim
(connects the target.)
(gdb) load
(loads the program.)
(gdb) c17 rst (resets the CPU.)
How to create a parameter file
You can create parameter files by selecting [GNU17 Parameter Settings] from the [Properties] dialog box of the
IDE
. For details about
IDE
, see Chapter 5, "GNU17 IDE". Because parameter files are text files, you can use a
general-purpose editor to create and correct parameter files.
note : Do not use non-ASCII (Japanese, etc.) characters for file names (including extensions) and text in
a file.
Contents of parameter file
The following shows an example of a parameter file.
#gnu17 gdb parameter file
(1)
ESSIM S1C17701
(2)
TTBR 8000
(3)
RAM 000000 001fff 00W #IRAM (4)
IO 040000 04ffff 00H #IO
RAM 600000 6fffff 11H #RAM
ROM c00000 cfffff 55B B #ROM
STACK 000000 001fff #STACK (5)
(1) Comment
From # to the end of the line is interpreted as a comment.
(2) Target model
This parameter specifies the target model to simulate with the ES-Sim17 .
(3) TTBR
This parameter specifies the trap table base address. The set value is referenced when the reset command
(
c17 rst
) is executed and is used as the trap table (vector table) start address. The reset vector written in
this address will be loaded to the PC for booting the system.