topic S32K144 SOSCCFG.EREFS in S32K

S32K144 SOSCCFG.EREFS

fupeng — Tue, 01 Aug 2017 02:09:16 GMT

Hi,

I have a problem,In the demo the

SCG->SOSCCFG=0x00000024; /* Range=2: Medium freq (SOSC between 1MHz-8MHz)*/
/* HGO=0: Config xtal osc for low power */
/* EREFS=1: Input is external XTAL */

means we used external XTAL,but the datasheet means 1- Internal and 0 - external

I am confused,who can help me?

Regards,

Re: S32K144 SOSCCFG.EREFS

danielmartynek — Wed, 02 Aug 2017 11:25:29 GMT

Hi,

The clock can be either an external clock on EXTAL pin [EREFS = 0], or output of the internal SOSC with an external crystal [EREFS = 1]. As you can see in the screenshot below (Figure 25-1, RM).

Regards,

Daniel

Re: S32K144 SOSCCFG.EREFS

378985092 — Wed, 07 Aug 2019 06:40:30 GMT

very good!