Hi Alexander,
thx for the tip about MC_ME, i'll make another try with it. Is there any documents/introduction about such implementation? In the last weeks i've used another strategy, stupid but simple from my point of view, to realise it: rename all sections and functions in first core (to avoid the dupplication by linking) and combine the link files of two cores to generate single ELF: compiling worked and i got one ELF file, but the start functions of 3rd core was linking to the flash of 1st core although i used the
.text :
{
...
}>3rd_core_flash
in ld file, had no idea about it. The generated elf file could be flashed and started but only the functions in the main module of first core worked.