Boot Flow

中文说明

Verilator reads a raw software binary from build/sw/<board>/<app>/ and passes its path to the harness as +bootrom=<path>.

Flow

1. After reset, the CPU fetches from the SoC boot address through SPI Flash.
2. The harness receives the raw Flash image path through +bootrom=<path>.
3. The Flash DPI model returns bytes when RTL performs SPI reads.
4. sw/ecos/start.S initializes the stack, clears .bss, and calls main.
5. Platform drivers use the board-package headers under sw/ecos/.

Use a .bin image. Passing an ELF makes the model treat ELF container bytes as raw Flash contents.