samd21: tidy up peripheral clocks and fix potential bugs #3887
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@daniel-k Looks good, please squash. |
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@thomaseichinger |
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ACK when Travis passed. |
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Travis is green, let's go. |
daniel-k
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Sep 30, 2015
samd21: tidy up peripheral clocks and fix potential bugs
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While revising some clock setups I stumbled upon 2 potential bugs and eliminated some implicit options (
GCLK_CLKCTRL_GEN_GCLK0evaluates to0but it's nice to see it if you don't know).Additionally I redirect all peripherals to a disabled clock generator at the end of the cpu clock initialization. That saves approx. 1mA while MCU is executing, depending on the enabled peripherals. See reference