[riot-notifications] [RIOT-OS/RIOT] [RFC] samd21: enable idle modes (#11072)

benpicco notifications at github.com
Wed Feb 27 10:19:48 CET 2019

Currently idle modes are disabled by default on all CPUs.

This enables all idle modes on samd21 but leaves deep sleep disabled.

On samr21-xpro this makes the current draw drop from 12mA to 8mA, UART (shell) and 802.15.4 still work as before (sending and receiving).

I would suggest to enable Idle modes except mode 0 (deep sleep) for all CPUs and fix what's broken instead of disabling pm in general, but let's start with samd21 so pm code paths are actually exercised.
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-- Commit Summary --

  * samd21: enable idle modes

-- File Changes --

    M cpu/samd21/include/periph_cpu.h (7)

-- Patch Links --


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