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Altera_Forum
Honored Contributor
Honored Contributorseveral elf files in flash
Hi all... How can I do to write several nios2 applications (elf files) sequentially in flash (without boot_copier) ? Is there a way to set a address where the programmer starts to write in flash...
Altera_ForumHonored Contributor
Honored ContributorHello...
The difference between the file sizes (file_bin->flash - file_elf->flash) is 160 bytes. I tested 5 different examples, and there was the same result. Follow the result of test with a program: (The blue area is the data to be writed in flash, the green word is the beginning of boot_loader code, and the red word is the beginning of program code). [u][b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span> In file_elf->flash, the first word (3A700100) is the first word of boot_loader too. The boot_loader part finishes before the red word (04FF7FEF), wich is the beginning of the program. In file_bin->flash is writed 11 words and the rest are zeros (528 zeros). After the zeros, two words is missing (orange words in file_elf->flash), and the remaining is the same for two files. I don't know why it writed these 528 zeros. I tryed to use strip, but the result is the same like bin->flash...
