I am able to generate bin files for my project. But the size of .bin file is large and doesn't fit in the flash section. I am attaching the linker cmd file Sounds like there is not memory allocated ...

Currently, I have designed my own board, and CANA uses GPIO18/19. I would like to ask if CANA must use a specific GPIO62/63 or 70/71. Can I use GPIO18/19 to configure CANA and use it as CAN bootloader ...