sipeed/bl602-pac

Embedded Rust's Peripheral Access Crate for BL602 microcontrollers

bl602-pac's Issues

[IMPORTANT] Project migration request

Hello, bl602-pac contributors:

Bouffalo Lab (bl602 chip vendor) wants to provide an official Rust PAC support project bl-pac to include PAC projects for all BL chips. Since there are bl602-pac project, I (as maintainer of new bl-pac) request to the community migrate sipeed/bl602-pac into the new bl-pac repository, and add @9names as project maintainer of bl-pac. Bouffalo Lab (github.com/bouffalolab) as new repository owner will welcome community contribution and keep MIT + MulanPSL as bl602-pac project license.

In order to approve this, I hereby request all contributors to bl602-pac to approve the project migration request. All contributors are: @9names, @username223, @jspngh, @luojia65, @mkroman, @parkero and @tchebb. If you are a contributor and you agree with this request, please reply this issue with:

I agree to migrate this project to bouffalolab/bl-pac and add @9names as project maintainer.

If you have any problem, please reply to this issue and include your concern.

Thanks!

Allow hard float abi

The default for the bl602-pac is currently targeting the tier 2 riscv32imac-unknown-none-elf which uses soft float. The bl602 hardware itself supports the f extension as well through an FPU.

We can allow custom targets (e.g. riscv32imafc-unknown-none-elf) to use the hard float abi by updating the dependencies for riscv and (optional) riscv-rt to the latest versions.

Working example here:
parkero / bl602-hardfloat

Re-enable MSRV CI job

The existing CI scripts were failing on the MSRV build, which was making it impossible to verify PRs.
To get things moving again, this path was disabled in #16.
Update/fix this so we can be sure that MSRV is honored.

The SVD needs improvements

I would recommend, before developing HAL further, we should concentrate on improving the SVD and PAC so we have a better foundation. I generated the docs for the PAC, and I can see there are:

• No/useless documentation for what the peripherals are
• Duplications of blocks that are identical (ie timer2 and timer3 have the same fields but are totally duplicated)
• No field accessors / enumeratedValues beyond .bits()
• No/useless field documentation

So I think we should start by going through the reference manual and updating the SVD.

Provide releases

Having the HAL use a branch git dependency on the PAC is super brittle.
We could use git tags or crates.io releases to make things more reliable.