Texas Instruments TMS320C54x, User Manual

Page: 396 / 469

Example 1: Building a Command File for Two 8-Bit EPROMS
C-4
To work around this problem, you can combine the sections at link stage, creat-
ing a single section for conversion. To do this, use the linker command shown
in Example C–2.
Example C–2. A Linker Command File for Two 8-Bit EPROMs
test.obj
–o test.out
–m test.map
MEMORY
{
PAGE 0 : EXT_PRG : org = 0x1400 , len = 0xEB80
}
SECTIONS
{
outsec: { *(sec1)
*(sec2) } > EXT_PRG PAGE 0
}
The EPROM programmer in this example has the following system require-
ments:
-
EPROM system memory width must be 16 bits.
-
ROM1 contains the upper 8 bits of a word.
-
ROM0 contains the lower 8 bits of a word.
-
The hex conversion utility must locate code starting at EPROM address
0x0010.
-
Intel format must be used.
-
Byte increment must be selected for addresses in the hex conversion
utility output file (memory width is the default).
Use the following options to set up the requirements of the system:
Option Description
–i Create Intel format
–byte Select byte increment for addresses in converted
output file
–memwidth 16 Set EPROM system memory width to 16
–romwidth 8 Set physical ROM width to 8