Crate avr_config[][src]

Foundational crate for retrieving details about the target AVR being compiled for.

This crate currently exposes the CPU frequency that is being configured for.

The AVR_CPU_FREQUENCY_HZ environment variable

All crates that depend on this crate (with the cpu-frequency feature enabled) require $AVR_CPU_FREQUENCY_HZ when targeting AVR. The frequency will then be available in the CPU_FREQUENCY_HZ constant.

It is not necessary to set this variable when AVR is not being targeted, for example, when running integration tests on the host machine.



The clock frequency of the current AVR microcontroller (if the cpu-frequency crate feature is enabled).