topic Re: Is there a globallly unique ID for MIMXRT052? in i.MX RT Crossover MCUs https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/Is-there-a-globallly-unique-ID-for-MIMXRT052/m-p/939043#M3977 <HTML><HEAD></HEAD><BODY><P>Hello,&nbsp;</P><P></P><P>The RT1052 does have a UniqueID, but it is not global. If you are seeing the same number for different chips I think you might be reading the wrong register or you are reading it wrong. The correct procedure on how to read the shadow registers that contain the UID is explained in section 22.4.1.3 of the reference manual.&nbsp;</P><P></P><P>&nbsp;Have a great day,</P><P>Victor</P><P>-------------------------------------------------------------------------------<BR />Note:<BR />- If this post answers your question, please click the "Mark Correct" button. Thank you!</P><P>- We are following threads for 7 weeks after the last post, later replies are ignored<BR /> Please open a new thread and refer to the closed one, if you have a related question at a later point in time.<BR />-------------------------------------------------------------------------------</P></BODY></HTML> Thu, 24 Oct 2019 16:52:35 GMT victorjimenez 2019-10-24T16:52:35Z Is there a globallly unique ID for MIMXRT052? https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/Is-there-a-globallly-unique-ID-for-MIMXRT052/m-p/939042#M3976 <HTML><HEAD></HEAD><BODY><P>请问MIMXRT052CVL5B<SPAN style="display: inline !important; float: none; background-color: #ffffff; color: #3d3d3d; font-family: Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif; font-size: 15px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; overflow-wrap: break-word; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;">每个</SPAN>芯片有全球唯一的ID吗？通过资料我找到了一个CPUID，其值是 <SPAN>0x411FC271</SPAN> <BR style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" /> ，是不变的。</P></BODY></HTML> Sat, 19 Oct 2019 03:00:54 GMT https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/Is-there-a-globallly-unique-ID-for-MIMXRT052/m-p/939042#M3976 13079364030 2019-10-19T03:00:54Z Re: Is there a globallly unique ID for MIMXRT052? https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/Is-there-a-globallly-unique-ID-for-MIMXRT052/m-p/939043#M3977 <HTML><HEAD></HEAD><BODY><P>Hello,&nbsp;</P><P></P><P>The RT1052 does have a UniqueID, but it is not global. If you are seeing the same number for different chips I think you might be reading the wrong register or you are reading it wrong. The correct procedure on how to read the shadow registers that contain the UID is explained in section 22.4.1.3 of the reference manual.&nbsp;</P><P></P><P>&nbsp;Have a great day,</P><P>Victor</P><P>-------------------------------------------------------------------------------<BR />Note:<BR />- If this post answers your question, please click the "Mark Correct" button. Thank you!</P><P>- We are following threads for 7 weeks after the last post, later replies are ignored<BR /> Please open a new thread and refer to the closed one, if you have a related question at a later point in time.<BR />-------------------------------------------------------------------------------</P></BODY></HTML> Thu, 24 Oct 2019 16:52:35 GMT https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/Is-there-a-globallly-unique-ID-for-MIMXRT052/m-p/939043#M3977 victorjimenez 2019-10-24T16:52:35Z