RTIC vs. Embassy


Embassy provides both Hardware Abstraction Layers, and an executor/runtime, while RTIC aims to only provide an execution framework. For example, embassy provides embassy-stm32 (a HAL), and embassy-executor (an executor). On the other hand, RTIC provides the framework in the form of rtic, and the user is responsible for providing a PAC and HAL implementation (generally from the stm32-rs project).

Additionally, RTIC aims to provide exclusive access to resources at as low a level as possible, ideally guarded by some form of hardware protection. This allows for access to hardware without necessarily requiring locking mechanisms at the software level.

Mixing use of Embassy and RTIC

Since most Embassy and RTIC libraries are runtime agnostic, many details from one project can be used in the other. For example, using rtic-monotonics in an embassy-executor powered project works, and using embassy-sync (though rtic-sync is recommended) in an RTIC project works.