RP2040 example (already created)

[ChocolateLoverRaj]

I modified the stm32f411x_scsi_bbb.rs example to run on a RP2040-based board. Here is my example: https://github.com/ChocolateLoverRaj/auto-boot/tree/aa74717dabebf876fd322e9f58c91cec82a296e4. Should it be added to this repo? If so, how? A different folder for RP2040?

[apohrebniak]

Thanks for using the crate!

Well, yes separate examples_stm32 and examples_rp2040 would be the most straightforward option, but my personal preference would be to first try adding a rp2040_scsi_bbb.rs file to the existing examples. I see two issues with the latter approach: different targets and different linker scripts.

For targets, I think, it would be alright to just hide target-depended dependencies(HAL) under cargo features and then build each example separately in CI (with --bin).

The linker problem is a bit more complicated. My idea is to have two liker scripts: e.g. stm32.ld and rp2040.ld and get rid of memory.x. Then, in examples/build.rs, add something like if CARGO_BIN_NAME == "rp2040_scsi_bbb" { println!("cargo:rustc-link-arg=-Trp2040.ld");}.
Perhaps there're more elegant solutions. That's just something from the top if my head

https://docs.rs/cortex-m-rt/latest/cortex_m_rt/#custom-linker-script