MSPM0L1306-Q1: 请问怎么设置MSPM0L1306单片机的运行频率为4MHZ?

Thank you for contacting TI China E2E forum and choosing our products as part of your solution.
Regarding your query, you can configurate it in sysconfig.
1. Use clock tree.

2.Change sysosc to other freq.

Sorry, our PC can't install this tool, would you please tell us the code of how to set the SYSOSC and MCLKCFG,?

just give us an example of set the CLOCK to 4MHZ, thank you.

This past post the same to your requirement?

MSPM0L1306: Internal clock output - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

get it ,thank you very much.