S32KのトピックS32K44 Standby

S32K44 Standby

1260784871 — Wed, 15 Feb 2023 12:25:51 GMT

1、Does HSM Core have the WFI execution state in the following figure?

2、Is there a detailed documentation for multi-core(include HSM core) entry standby?

Re: S32K44 Standby

VaneB — Wed, 15 Feb 2023 20:24:00 GMT

1. Does HSM Core have the WFI execution state in the following figure?

You can find information about HSE in chapter 35 of the S32K3xx Reference Manual, Rev. 5.
If you need more information about HSE, you can find it in secure files, but it is under NDA (Non Disclosure Agreement). It is not public.

2. Is there a detailed documentation for multi-core(include HSM core) entry standby?

Please refer to section 45.6 Standby entry of the RM.

B.R.

VaneB

Pad Keeping

1260784871 — Mon, 27 Feb 2023 11:21:06 GMT

Which pads belong to the Run domain and which belong to the Standby domain？

Re: Pad Keeping

VaneB — Tue, 28 Feb 2023 18:50:42 GMT

Hi @1260784871

Any pin can be pad kept if you enable the corresponding MSCR[PKE] and write 0 to DCM's DCMRWF1[STANDBY_IO_CONFIG] field.

Re: Pad Keeping

1260784871 — Wed, 01 Mar 2023 05:39:12 GMT

1、I have tested the S32K344 EVB， When DCMRWF1[STANDBY_IO_CONFIG] =0,and MSCR[PKE]=0,PAD KEEP also enabled

2、Setting MSCR[PKE] to 0 or 1 seems to make no difference，why?

Re: Pad Keeping

VaneB — Wed, 01 Mar 2023 21:00:02 GMT

Hi @1260784871

Pad keeping is basically keeping or not the state of the pads when you go into standby.

Could you be more detailed about what you see when writing 1 or 0 to MSCR[PKE]?

Re: Pad Keeping

1260784871 — Thu, 02 Mar 2023 12:27:37 GMT

1、What I tested was that GPIO output would remain during standby mode, no matter what the configuration

2、Can you give me the example code: GPIO output does not hold when entering standby mode

中文：不管我如何配置PAD Keeping使能与失能，进入standby mode，GPIO的输出都能保持为RUN模式下的状态，能不能给我一份《RUN模式下GPIO输出高，进入Standby mode后，GPIO不能保持》的例程

Re: Pad Keeping

VaneB — Mon, 06 Mar 2023 17:17:30 GMT

Hi @1260784871

No matter whether pad keeping is enabled or not before going to standby mode. The GPIO will always retain the status set before going to standby mode. The function of pad keeping is mainly to keep the GPIO mode between MCU reset to pad keeping disabled(write DCM_GPR->DCMRWF1[STANDBY_IO_CONFIG] = 1).

The enlisted IO can change its output state after the chip enters StandBy mode.