nRF52832 IC revision confirmation method

[takashina hiroki]

Module : EYSHJNZWZ (nRF52832)

Is there a way to check nRF52832 IC revision?
Since the chip is embedded in the module, it cannot be confirmed by appearance.

[Håkon Alseth]

Hi there,

 

Yes, you can read the revision without seeing the part.

This is the register you're interested in:

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/ficr.html?cp=3_2_0_12_0_16#register.INFO.VARIANT

B0 = rev1

E0 = rev2

 

Kind regards,

Håkon

[takashina hiroki]

Thank you for answering.

Please tell me one more thing.
What do AAAA, AAAB, AABA, AABB mean?

[takashina hiroki]

Please tell me one more thing.

I read the revision with the following code.
NRF_FICR-> INFO.VARIANT

At that time, the read value is "0x41414531".
This value is not included in the table you told me.

What does this value mean?
Please tell me.