topic RT1050 UUID in i.MX RT Crossover MCUs

RT1050 UUID

ffloree — Wed, 16 Aug 2023 06:26:31 GMT

Does RT1050 have UUID (instead of UID)? if it does, which registers I can get it from?

I know RT685 has it, see the UM11147 Section 4.5.5.52, but I didn't find it in RT1050 reference manual, it just mentions a 8-byte UID which can be read from OCOTP->CFG0 and OCOTP->CFG1, but I don't think it's the standard 16-byte UUID following rfc4122 https://www.rfc-editor.org/rfc/rfc4122 .

Re: RT1050 UUID

Kan_Li — Wed, 16 Aug 2023 07:49:55 GMT

Hi @ffloree ,

Yes, there is a thread on similar topic, and you may refer to https://community.nxp.com/t5/i-MX-RT/Read-UID-Unique-ID-on-i-MXRT-RT1050/m-p/1202637 for details.

You may refer to chapter 22 in the RM for more details.

Hope that helps,

Have a great day,
Kan

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Re: RT1050 UUID

ffloree — Thu, 17 Aug 2023 00:43:17 GMT

@Kan_Li ,

Thank you, I've seen this ticket, it talks about the Unique ID instead of Universally Unique ID. You provided the 8-byte (reg0x410 and reg0x420) data is not the UUID either. Correct me if I'm wrong.

回复： RT1050 UUID

lucas_cao — Fri, 18 Aug 2023 06:49:44 GMT

UUID is from the fuse 0x410 and 0x420. We can use the shadow registers to get its value.For RT1050, you can use the following code to get the UUID.

UUID_L = *(uint32_t *)0x401f4410;

UUID_H = *(uint32_t *)0x401f4420;