nrf5340 build codes

RE: nrf5340 build codes

d_c_h_w — Fri, 21 Apr 2023 07:17:51 GMT

Hi Raoul, thanks for clarifiying.

RE: nrf5340 build codes

Raoul — Thu, 20 Apr 2023 21:58:03 GMT

Hi again Dominic,

Revision 1 (D00) of this chip is actually the exact same silicon as the most recent engineering candidate (DB0) that preceded it. I'm told that this even goes as far as having the same identifiers in memory, which means that nrfjprog could identify a Rev. 1 as an Eng. D chip. So yes, in some way you could consider that reference a mistake.

It still seems that you have your hands on the D00 varsion.

Best regards,

Raoul

RE: nrf5340 build codes

Raoul — Tue, 18 Apr 2023 19:21:10 GMT

Interesting! I've asked internally, I'll let you know when I know more. Thanks for waiting.

Best regards,

Raoul

RE: nrf5340 build codes

d_c_h_w — Tue, 18 Apr 2023 14:05:04 GMT

Hi, Thanks Raoul, that clears things up

Except...when we program the devices via our jlink probe, the Nordic Programmer App shows the following in the log:

2023-03-31T09:07:05.713Z INFO Using @nordicsemiconductor/nrf-device-lib-js to communicate with target via JLink

2023-03-31T09:07:05.714Z INFO JLink OB firmware version J-Link V11 compiled May 18 2022 17:08:14

2023-03-31T09:07:05.714Z INFO Device family NRF53_FAMILY

2023-03-31T09:07:05.715Z INFO Device version NRF5340_xxAA_ENGD

2023-03-31T09:07:05.715Z INFO Board version Unknown

I'm guessing the reference to ENGD here is a mistake?

Thanks,

Dominic

RE: nrf5340 build codes

Raoul — Tue, 18 Apr 2023 13:48:08 GMT

Hi Dominic,

When "translating" to the package markings you can just omit the last 0. I'm told that the last digit (the one omitted from the package marking) refers to which firmware version is pre-flashed to the chip. As of now, all revisions for the nRF5340 have a final digit of 0 (no firmware).

So, you have your hands on an nRF5340 D00 (== D0). This is not an engineering revision, and the anomaly/errata that you linked to is indeed relevant for the chip you have.

I hope that makes things clear!

Edit: I should add, you can find info on how to decipher these product codes in the "ordering information" section of the product specifications, which might not be obvious: https://infocenter.nordicsemi.com/index.jsp?topic=%2Fps_nrf5340%2Fchapters%2Fordering_info%2Fdoc%2Fordering_info.html&anchor=unique_1492386104

Best regards,

Raoul