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KChen86
New Contributor I
1,346 Views

Braswell N3010 power sequence problem

Hi,

I have a question about N3010 power sequence.

We power up the system without BIOS code, the PMIC is TPS650842 from TI. I check the voltage rail and sequence by scope, every rail is right. But after PMIC pull up VCCAPWROK & COREPWROK, the N3010 didn't pull up PLTRST(SLP_S3_N already pulled up by N3010). Is it no BIOS code cause this problem?

thanks,

Kevin

0 Kudos
3 Replies
CarlosAM_INTEL
Moderator
70 Views

Hello KevinChen29,

Thank you for contacting the Intel Embedded Community.

It is important to let you know that the Power Management IC (PMIC) provides all power and clock supplies as well as system power management control. This information and more details are stated as a reference in sections The Power Management IC Concept and The Power Management IC Goals; on pages from 6 to 13 of http://www.intel.com/content/dam/www/public/us/en/documents/white-papers/atom-e6xx-power-management-... the Power Management IC for the Intel(R) Atom(TM) Processor E6xx Series and Intel(R) Platform Controller Hub EG20T White Paper.

Due to this fact, the cited situation is related to the PMIC.

We hope that this information is useful.

Best Regards,

Carlos_A.

KChen86
New Contributor I
70 Views

Hi Carlos,

I just want to makesure that N3010 can pull up PLTRST# without BIOS code or can't?

Thanks,

Kevin

CarlosAM_INTEL
Moderator
70 Views

Hello KevinChen29 ,

Thanks for your update.

The information that may help you is stated on documentation that should be accessible when you have an Embedded Design Center (EDC) Privileged account. In order to request an upgrade from your Basic EDC account to Privileged, go to /www.intel.com/content/www/us/en/embedded/embedded-design-center-support.html http://www.intel.com/content/www/us/en/embedded/embedded-design-center-support.html and click on "Manage Your Intel Profile" found in the "Manage Your Account" section of the page. From there you can request an upgrade. After you submit the application, please let us know and we will expedite the review of your application. The application can be found at:

/www-ssl.intel.com/content/www/us/en/forms/intelligent-systems/registration-po.html https://www-ssl.intel.com/content/www/us/en/forms/intelligent-systems/registration-po.html

Thanks for your cooperation to solve this inconvenience.

Best Regards,

Carlos_A .