> >> I cannot find where 'prog_char is defined and would like
> to know how
> >> I can force the compiler to put these strings in my
> 'test1' section.
> >>
> Thanks Stu, I am aware of this, but it does not address my problem.
> This works fine when a 'defalut' .text section is used.
> For me it breaks because I want the string in my defined
> section (not .text).
As Eric said, prog_char is defined in prgmspace.h. It's really nothing
more that a "char" with a secion attribute added.
You can define your own sections as:
#define MYSTRING_SECTION __attribute__ ((section (".mystring")))
const char my_Version [] BOOTSTRING_SECTION = "0.8";
const char my_Prompt [] BOOTSTRING_SECTION = "* ";
const char my_CRLF [] BOOTSTRING_SECTION = "\r\n";
const char my_OK [] BOOTSTRING_SECTION = "OK";
const char my_Huh [] BOOTSTRING_SECTION = "Huh?";
And setting it up in the makefile as:
LDFLAGS += -Wl,--section-start=.mystring=0x3FA0
Make sure that the section is in the lower 64 K *Bytes* of memory or you
will need to use the pgm_read_*_far() functions to access them. Do a
search on AVRFreaks.net for morepgmspace.h for macros to deal with
program strings beyond 64 Kbytes.
Best regards,
Stu Bell
DataPlay (DPHI, Inc.)
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