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https://github.com/ryankurte/embedded-hal-compat
Rust embedded-hal inter-version compatibility layer
https://github.com/ryankurte/embedded-hal-compat
Last synced: about 1 month ago
JSON representation
Rust embedded-hal inter-version compatibility layer
- Host: GitHub
- URL: https://github.com/ryankurte/embedded-hal-compat
- Owner: ryankurte
- License: mit
- Created: 2021-02-21T07:40:21.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2024-05-05T20:19:32.000Z (about 2 months ago)
- Last Synced: 2024-05-06T20:53:44.205Z (about 2 months ago)
- Language: Rust
- Size: 73.2 KB
- Stars: 15
- Watchers: 5
- Forks: 12
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE-MIT
Lists
- awesome-embedded-rust - embedded-hal-compat
- awesome-embedded-rust - embedded-hal-compat
README
# Embedded HAL Compatibility Layer
A compatibility layer to smooth the transition between different versions of [embedded-hal](https://github.com/rust-embedded/embedded-hal) (specifically `0.2.x` and `1.0.0-alpha.X` series).
This resolves the problem where a HAL implementation (ie. the implementation for your processor) and driver you intend to use are mismatched.
This crate is intended to track `1.0.0-alpha` versions, and update to `1.0.0` on release, adaptation is not provided between `1.0.0-alpha.x` releases (though we _could_ do this if it was deemed worthwhile)
### Supported Versions
Each release of `embedded-hal-compat` supports one(ish) pair of e-h releases, because of changes to the `1.0.0-alpha`, use:
- `embedded-hal-compat = "0.13.0"` for `=1.0.0` and `^0.2.7`
- `embedded-hal-compat = "0.12.0"` for `=1.0.0-rc.1` and `^0.2.7`
- `embedded-hal-compat = "0.11.0"` for `=1.0.0-alpha.11` and `^0.2.7`
- `embedded-hal-compat = "0.10.0"` for `=1.0.0-alpha.10` and `^0.2.7`
- `embedded-hal-compat = "0.7.0"` for `=1.0.0-alpha.8` and `^0.2.4`
- `embedded-hal-compat = "0.6.0"` for `=1.0.0-alpha.7` and `^0.2.4`
- `embedded-hal-compat = "0.5.0"` for `=1.0.0-alpha.6` and `^0.2.4`
- `embedded-hal-compat = "0.4.0"` for `=1.0.0-alpha.5` and `^0.2.4`
- `embedded-hal-compat = "0.3.0"` for `=1.0.0-alpha.4` and `^0.2.4`
## Status
[](https://github.com/ryankurte/embedded-hal-compat)
[](https://github.com/ryankurte/embedded-hal-compat/actions/workflows/rust.yml)
[](https://crates.io/crates/embedded-hal-compat)
[](https://docs.rs/embedded-hal-compat)
Not all wrappers are fully implemented, feel free to open a PR if you come across something missing!
#### How to use this:
- Add `embedded-hal-compat` to your dependencies
- Import with `use embedded_hal_compat::{ForwardCompat, ReverseCompat};`
- Vicariously add `.forward()` or `.reverse()` on any `embedded-hal` type mismatches
- See [docs.rs](https://docs.rs/embedded-hal-compat/latest/embedded_hal_compat/) for further documentation
#### How do I know that I need this?
Type errors. Lots of type errors.
(and `cargo tree -i embedded-hal` returns two versions)
#### Is this cursed?!
At least a little bit, because traits have the same method names you might end up with some cursed errors, and we have to pave over some differences around errors and error kinds...
#### What kind of errors?
Because you're likely to have symbols with the same name you'll end up with errors like:
```
error[E0599]: no method named `delay_ms` found for mutable reference `&mut Compat` in the current scope
--> src/main.rs:351:27
|
351 | tlv.inner_delay().delay_ms(10u32);
| ^^^^^^^^ method not found in `&mut Compat`
warning: unused import: `embedded_hal::blocking::delay::DelayMs`
--> src/main.rs:22:5
|
22 | use embedded_hal::blocking::delay::DelayMs;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
```
Suggesting you're missing an import that's obviously there, because you have the `0.2.x` imports not the `1.0.0-alpha.x` imports, and the method is called `try_delay_ms` in the updated HAL (a fairly common renaming).
You can fix this by importing the correct trait with something like: `use embedded_hal_compat::eh1_0::blocking::delay::{DelayMs as _};` (this must be renamed with `as` / you can't use the prelude because the names overlap), and by swapping the method to use the correct `try_` name.