Renesas TM V.3.20A Specifikace stáhnout pdf (Strana 59)

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Renesas Technology, Tools FAQs

Last Updated: July 21, 2000

Document Number: 01051236_e

I want to place CONST-declared data at the place that I assign in the ROM.

Please write your program in the following manner:

Declare variables which you want to place in the ROM with "#pragma ROM".1.

Modify the start-up program so that the section "rom_FE", where the above-mentioned variable will be placed, is properly

mapped in the specified location.

The following shows an example of the declared variable "text" placed at 0xF9000.

Declare the text with "#pragma ROM":

#pragma ROM text

const char text[5]={"text"};

Based on the above declaration, the following assembler code is generated:

.SECTION rom_FE,ROMDATA ;<--Section rom_FE

.glb _text

_text:

.byte 74H ; 't'

.byte 65H ; 'e'

.byte 78H ; 'x'

.byte 74H ; 't'

.byte 00H

.END

Modify start-up program (setc30.inc):

.section rom_FE,ROMDATA

.org F9000H ;<--specify the address for this section

rom_FE_top:

.section rom_FO,ROMDATA

rom_FO_top:

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