topic RE: PLTRST# signal cannot de-asserts on boot in Embedded Intel Atom® Processors

PLTRST# signal cannot de-asserts on boot

DP21 — Sun, 13 Nov 2022 06:42:48 GMT

On power up, all the core processor rails come up correctly; PCH_PWROK and SYS_PWROK both go high; but PLTRST# always de-asserts，I haven't been able to find shorts in the board that might be causing the problem，Is there another requirement for PLTRST# deasserting that I'm missing?and do we need to check any other places?

VCCCORE default 0V，VCCCORE be controled by SVID，do CPU send SVID after PLTRST# de-asserts？

Re: PLTRST# signal cannot de-asserts on boot

CarlosAM_INTEL — Mon, 14 Nov 2022 13:09:58 GMT

Hello, @DP21:

Thank you for contacting Intel Embedded Community.

We received your consultations.

However, we want to address the following question to better help you:

Could you please let us know the part number of the processors related to the reported issue?

We are waiting for your reply.

Best regards,

@CarlosAM_INTEL.

RE: PLTRST# signal cannot de-asserts on boot

doowonjeong — Wed, 30 Nov 2022 06:15:07 GMT

Hello.

I also have this issue.

PCH_PWROK , PROCPWRGD, SYSPWROK all OK.

BUT, PLTRST is Low.

how to solve this problem?

I used ADL-S, R680E .

RE: PLTRST# signal cannot de-asserts on boot

CarlosAM_INTEL — Wed, 30 Nov 2022 15:14:38 GMT

Hello, @doowonjeong:

Thank you for contacting Intel Embedded Community.

We want to address the following question to understand your consultation:

Could you please clarify if your request is related to the following forum?

https://community.intel.com/t5/Embedded-Intel-Core-Processors/ADL-S-PCH-dose-not-working-after-SLP-A/m-p/1432690

We are waiting for your reply.

Best regards,

@CarlosAM_INTEL.