Honored Contributor
Honored ContributorSorry for taking an old thread up, but I am stuck on some interesting place.
Now I am trying to do a bootloader, which gets data through SPI. The bootloader reset vector is in on-chip memory, which is at 0x01000000. The exception vector is placed on SDRAM, which is at 0x00800020 (SDRAM component address is 0x00800000). Now when I try to write the binary data to SDRAM_BASE (0x00800000) or to exception address (0x00800020), then the data is written up to a certain address (e.g. writes up to 0x00800864) and the cpu hangs. If I begin to write from 0x008F0000, then all the binary data is written fine. The question: where do I have begin to to write the binary data? To SDRAM_BASE, to exception address or other address?
