S32K146

[chuanlin]

Hello, can the S32K146 EB tresos LPTMR module be configured to use RTC_ CLK

[Julián_AragónM]

Hi @chuanlin,

Yes, according to Table 27-8. Peripheral clock summary (continued) from the S32K1xRM, RTC_CLK is available as output. 

Julin_AragnM_0-1706127266028.png

Keep in mind RTC_CLK is the output from the multiplexer that uses SIM_LPOCLKS[RTCCLKSEL] for source selection.

Julin_AragnM_1-1706127315945.png

Best regards,
Julián

[chuanlin]

Hello, the MCU module in the EB configuration of K146 cannot select RTC_ CLK, this means that LPTMR still cannot use RTC_ CLK clock reference point

chuanlin_0-1706145717341.png

[Julián_AragónM]

Hi @chuanlin,

It seems the RTC clock is not supported in the EB Tresos configuration view.

The "lptmr_periodic_interrupt_s32k116" example from the S32K1xx SDK RTM example projects inside S32 Design Studio does support the RTC clock from the Config Tools, as seen in this community post:

• S32K146 LPTMR - NXP Community

I apologize for the inconveniences this may cause.

Best regards,
Julián

[chuanlin]

For SIM_ LPOCLKS [RTCCLKSEL], does RTCCLKSEL need to select 11