Ricardo Wiggers wrote:
I'd like to know how to define a new section like infomemnobits. To be
more specific, I'm working with an 149 and would like to use a portion
of flash to user storage (0x1100 to 0x7fff). I've managed to reduce the
text section to start at 0x8000 and to create a flashdata section where
I wanted, but I also wanted it not to be loaded. Could someone give me a
hint on how to do it?
there are different ways to achieve that goal.
- just use a pointer to a char array in that mem range
- place a array in that memeory area: char data[55] __asm__("0x1100")
- i think you can define sections on the command line
- or provide your own linker script like i have done in the
CVS/jtag/funclets folder of the mspgcc.sf.net CVS repository.
starting with an original F149 script should be easy. you fint it on
your disk: mspgcc/msp430/lib/ldscripts/msp430x149.x
the -T linker option allows to specify your own file.
note:
the first flash segment at 0x1100 is only 256 bytes large, the following
512B. thats no problem but in some cases you need to know what you are
doing.
chris
