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==Introduction==
By default, power management scheme implemented in [[Axel_Embedded_Linux_Kit_(XELK)|Axel Embedded Linux Kit]] makes use:
*of the external PMIC for voltage scaling
*of the [[FAQs_(Axel)#Q:_How_can_I_change_the_CPU_clock_frequency.3F|<code>interactive</code>]] governor.
This scheme may affect
[ 483.380456] imx-uart 21f0000.serial: Rx FIFO overrun