Clock switch from 48MHz to 96 MHz

Official Hardware MKR Family MKR Zero
1

Hello,

i very new in Ardunio programming. I would like switch the clock fom 48 MHz to 96 MHz.
I need a higher CPU speed.
Could you help me?

Thanks so lot

2

Getting to the SAMD clock freq is done via REGISTERS and at a low level.

A topic covering the aspect here

Waay above my skill level but there are other sources too.
Simply google SAMD clock frequency

3

Thank so lot, i will try this

4

Hi Zeus_39,

The SAMD21 microcontroller used on the MKRZero has a maximum CPU core frequency of 48MHz. The 96MHz Franctional Digital Phase Locked Loop (FDPLL96M) can only be used to clock some of its on-board timers, namely: TCC0, TCC1, TCC2 and TC3.

If you're looking for a faster Arduino compatible microcontroller, there's the Adafruit Metro M4, Feather M4 and Itsy Bitsy M4 boards. These are ARM Cortex M4F devices running at 120MHz, but with loads more memory and other features. If you're familiar with programming the SAMD21, the SAMD51 isn't too dissimilar.