Settings COSMIC compiler for 9S12G48? ELF-file

[christiangaertn]

Hello,

I just have a problem with the linker or ELF-producer (clabs.exe) for getting a ELF-File that can be downloaded and debugged with the Hiware debugger using Multilink.

The problem does not occur when I am downloading a S19-file. The firmware runs correctly but debugging is not possible. With all tried settings I always get the error from the elf-loader "no memory at location..." when tring the ELF-file.

extract from linker:

+seg .text         -b0xC000 -o0xC000 -n.text -m0x3F00 -s flash   --> no memory at location 0x00C000

when using this setting:

+seg .text         -b0xF8000 -o0xC000 -n.text -m0x3F00 -s flash   --> no memory at location 0x0F8000

The S19 always looks correct and works.

Has anyone a hint what settings I have to change?

[GordonD · Accepted solution]

Christain,

The PFlash map for the S12G is basically the same as the S12P. Here are the +seg definitions I used in an S12P64 project with the Cosmic compiler, using the Hiwave debugger:

+seg .text -b 0x4000 -m 0x4000 -x -f 0x3f

+seg .text -b 0x38000 -o 0x8000 -m 0x4000 -x -f 0x3f

+seg .text -b 0xc000 -m 0x3f00 -n .text

+seg .const -a .text -f 0x3f

The -f option fills unused space within a segment with the SWI instruction (0x3f). The -x option allows one segment to automatically "spill over" into the next non-contiguous segment when the segment becomes full.

When using the cvdwarf utility to create an ELF/DWARF file for Hiwave, make sure to use the +page1 option on the command line. i.e. cvdwarf +page1 -o <OutputPathFileName> <InputPathFileName>.h12

Hope this helps.

Best Regards,

Gordon