kinetis: MCG improvements #6978
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May 30, 2017 08:50
The new implementation uses a precalculated map of which mode to switch to next if going from mode A to mode B. This simplifies the implementation for moving between modes which are not direct neighbors. See mcg.h documentation for a diagram of the state machine for the clocking modes. Also found in the CPU reference manual of all Kinetis CPUs, MCG chapter, MCG mode state diagram.
Found in Kinetis L series, among others
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ACK.
Tested on FRDM-K64F and pba-d-01-kw2x with success.
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A collection of improvements for the multipurpose clock generator (MCG) driver, including:
The new implementation uses a precalculated map of which mode to switch
to next if going from mode A to mode B. This simplifies the
implementation for moving between modes which are not direct neighbors.
See mcg.h documentation for a diagram of the state machine for the
clocking modes. Also found in the CPU reference manual of all Kinetis
CPUs, MCG chapter, MCG mode state diagram.
Tested on Mulle/K60, FRDM-K22F (in #6994), FRDM-KW41Z (in #6995)
Will be required for future support of Kinetis L series CPUs and KW41Z