MSPM0G3507: What is the best way to generate a ±1% precision, 1MHz clock on the MSPM0G

Hello KZ,

There are three method to generate 1 MHz clock for G series:

1). Use internal 4MHz SYSOSC and PLL but maybe its precision can't meet your requirement

2). Use the external high frequency crystal oscillator (HFXT). it seems to be a better method.

3). Use the 4- to 48-MHz typical frequency digital clock (HFCLK_IN).

You can import an example code of G3507 and see it clock tree to help you understand G3507's clock structure.

Best Regards,

Janz Bai