Are there any Power On Built In Test guide for i.MX8QM processor?

[GeekFork]

Hi Expert,

As the question title, I wonder if there are Power On Built In Test manuals for i.MX8QM processor? 

I am using imx8qm-mek reference board, or maybe I should ask: 

1. Does the board(processor?) has PBIT in power on period?

2. If it does, how to query the BIT result?

3. If it does not, is there any guide to perform a PBIB by myself?

Thanks!

-Jerry

[JosephAtNXP]

Hi,

Thank you for your interest in NXP Semiconductor products,

What would the Power-On test look for? There are not BITs for the power section, you'd need to code a test for the desired functionality to be tested.

There are multiple BISTs for the specific module IPs within the SOC, that you may want to refer to the reference manual for further research.

Finally, if the power management is the concern within the test, you can use these unit tests in Linux working in the reference board already.

• /unit_tests/Power_Management/suspend_random_auto.sh
• /unit_tests/Power_Management/suspend_quick_auto.sh

https://www.nxp.com/docs/en/reference-manual/IMX_REFERENCE_MANUAL.pdf

Regards

[GeekFork]

Thanks for your reply.

I am not saying the power management section of the hardware.  I meant the hardware BIST during the system power on period.

I had a quick flip through the reference manual. It seems that most of the module IPs have no BIST, say GPIO.  Only few modules have BIST functions(maybe include DDR and PCI).

Is my understanding correct? 

Thanks!

[JosephAtNXP]

Hi,

It is correct,

Regards