Common CPU Groups

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Common definitions and implementations for CPU groups

Related CPUs

RP2 CommonCode shared by the RP2040 and the RP2350

RP2350 MCUsRP2350 MCU code and definitions

CPUs may share many definitions and peripheral implementations, these are collectively stored into a common module per CPU group in cpu/common/<name> where <name> should boil down to a common denominator, e.g. nrf5x for nRF51, nRF52, … CPUs.

A CPU module can use that common module by adding USEMODULE += cpu_common_<name> to its Makefile.dep. The cpu/common/<name>/Makefile{.dep,.include} files are loaded automatically. The common Makefile.include is included first.

The common Makefile.features has to be included explicitly in the Makefile.features of the CPU, as the features provided by a board have to be known before the dependency resolution, e.g. for make info-boards-supported.