Renesas 70 用户手册
Chapter 5 Detailed Applications
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5.9.1
Section Allocation of start.a30
The section allocation of the sample startup program for the assembly language "start.a30" is defined in
"asm_sec.inc".
"asm_sec.inc".
Edit "asm_sec.inc" if section reallocation is required.
The following explains each section that is defined in the sample section definition file "asm_sec.inc".
•
MR_RAM_DBG section
This section stores the MR308's Debug functions RAM data.
This section must be mapped the internal area.
This section must be mapped the internal area.
•
MR_RAM_NE section
•
MR_RAM_NO section
This section is where the RAM data, MR308's system management data, is stored that is referenced in
absolute addressing.
This section must be mapped between 0 and 0FFFFH (near area).
absolute addressing.
This section must be mapped between 0 and 0FFFFH (near area).
•
MR_RAM section
This section is where the RAM data, MR308's system management data, is stored that is referenced in
absolute addressing.
absolute addressing.
•
stack section
This is the section for the default user stack of each task and for the system stack.
•
MR_HEAP section
This is the section in which the variable-size memory pool, fixed-size memory pool, and data queue
area are stored.
area are stored.
•
MR_KERNEL section
This section stores MR308 kernel program..
•
MR_CIF section
This section stores the MR308 C language interface library.
•
MR_ROM section
This section stores data such as task start addresses that area referenced by the MR308 kernel.
•
program section
This section stores user programs.
This section is not used by the MR308 kernel at all. Therefore, you can use this section as desired.
This section is not used by the MR308 kernel at all. Therefore, you can use this section as desired.
•
program_S section
This section stores the functions invoked by aspecial page call.
This section is not used by the MR308 kernel at all.
This section is not used by the MR308 kernel at all.
•
fvector section
This section stores the vector address of special page calls.
This section is not used by the MR308 kernel at all.
This section is not used by the MR308 kernel at all.
•
INTERRUPT_VECTOR section
•
FIX_INTERRUPT_VECTOR section
This section stores interrupt vectors. The start address of this section varies with the type of M16C/80
series microcomputer used. The address in the sample startup program is provided for use by the
M16C/80 series micro-computers. This address must be modified if you are using a microcomputer of
some other group.
series microcomputer used. The address in the sample startup program is provided for use by the
M16C/80 series micro-computers. This address must be modified if you are using a microcomputer of
some other group.