The board info blob is stored in the last 128 bytes of the
bootloader's flash bank. You can access this data from the
application firmware like this:
#include <pios_board_info.h>
if (pios_board_info_blob.magic == PIOS_BOARD_INFO_BLOB_MAGIC) {
/* Check some other fields */
}
DO NOT link pios_board_info.c into your application firmware.
Only bootloaders should provide the content for the board info
structure. The application firmware is only a user of the data.
This change is made up of a number of tightly coupled
changes:
- Deprecate the use of the USE_BOOTLOADER command-line
option. It is now hard-coded in each Makefile.
Overriding it on the command line is not allowed.
- Split apart the memory declaration and the section
declaration in all linker files (*_memory.ld and
*_sections.ld).
- Describe the split between bootloader and app sections
of flash in each board's _memory.ld file.
- Change program target to selectively erase flash so
that the installed bootloader is preserved across even
JTAG programming operations.
- All elf files are built with debug symbols and are not
stripped. This should help debugging with gdb. The
images programmed on the boards are all .bin files now
which do not include symbols.
The .bin.o rule places the contents of a raw .bin file
into an .o file wrapped within fixed symbols for start
and end. This can be used to embed a binary file inside
of an executable.
The symbols for the embedded binary blob are:
_binary_start
_binary_end
_binary_size
NOTE: The way the .bin.o rule is currently written, you
can only embed one binary blob in an executable since the
symbol names will collide if you add multiple blobs. This
limitation is easily removed later if necessary.
firmware include and delete all the extra foss-jtag config files. There is now
a legacy file for the revA board a second for AHRS that changes the port
- fixed: dep directory problem (sometimes it cannot be created by make, so do it with mkdir);
- fixed: added -f option to all_clean target (or rm stops on Windows for hidden .svn and r/o files);
- fixed: overridden USE_BOOTLOADER var for bootloaders (should always be set to NO regardless of command line);
- verified: short compilation output works as expected.
Some TODOs still exist, see OP-305 comments for details.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2918 ebee16cc-31ac-478f-84a7-5cbb03baadba
These files were a mix of line endings. Now
they're all consistent as LF terminators.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2855 ebee16cc-31ac-478f-84a7-5cbb03baadba
