Why does esp-template use v0.2.7 of embedded-hal instead of expected v1.0.0?

[henryshunt]

If I create a new project for the ESP32-S3 using cargo generate esp-rs/esp-template and run cargo tree, I see dependencies on v0.2.7 of embedded-hal by esp-hal v0.16.1 and esp-synopsys-usb-otg v0.4.0. I had expected there to be only dependencies on v1.0.0 of embedded-hal given that from reading some of the release notes it appears that v1.0.0 is properly supported (and thus I assume it is supposed to be the default). Additionally, esp-hal's Cargo.toml file specifies that it should use v1.0.0 (except for the embedded-hal-02 case to support the old version of course).

I'm trying to use v1.0.0 of embedded-hal in an S3 project I'm working on, but this is causing a compilation error when I work with GPIO in a certain way. I believe this is caused by this version mismatch.

I can post the error when I get home if necessary, but I'm primarily just trying to understand where the old version of embedded-hal is coming from given that from what I can tell, it should be using v1.0.0.

[SergioGasquez]

Some drivers are still using embedded-hal 0.2.7, see esp-rs/esp-hal#1317. Also note that some drivers are already merged (esp-rs/esp-hal#1317 (comment)) are not yet released.

[henryshunt]

Ah, well that explains things then. I was under the mistaken impression that the v1.0.0 support was already completed. Thanks!