https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1787221#M13865 <LI-CODE lang="markup">=&gt; i2c md 0x57 0 100 0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0030: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0040: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0050: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0060: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0070: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0090: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................</LI-CODE> Thu, 11 Jan 2024 13:12:29 GMT mikelooijmans 2024-01-11T13:12:29Z https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1781515#M13804 <P>There are 3 EEPROMs on the ls1028ardb</P><P>In particular, the one at 0x57 is supposed to contain "board ID" information like serial number and MAC addresses.</P><P>To my surprise, the board was shipped with all EEPROMs empty (all bytes still set to 0xFF). Is that supposed to be the case?</P> Tue, 02 Jan 2024 07:33:47 GMT https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1781515#M13804 mikelooijmans 2024-01-02T07:33:47Z https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1787171#M13863 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="yipingwang_0-1704971715374.png" style="width: 547px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/257764i0C08479320A29395/image-dimensions/547x156?v=v2" width="547" height="156" role="button" title="yipingwang_0-1704971715374.png" alt="yipingwang_0-1704971715374.png" /></span></P> <P>This EEPROM should be write protectable, the information should be stored after shipping.</P> <P>Please refer to the following value on my LS1028ARDB board.</P> <P>=&gt; i2c md 0x57 0 100<BR />0000: 4e 58 49 44 6c 73 31 30 32 38 61 72 64 62 2d 00 NXIDls1028ardb-.<BR />0010: 6e 61 00 00 00 19 01 28 10 15 00 ff 00 00 00 01 na.....(........<BR />0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />0030: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />0040: 05 ff 00 e0 0c 00 09 00 00 e0 0c 00 09 01 00 e0 ................<BR />0050: 0c 00 09 02 00 e0 0c 00 09 03 00 e0 0c 00 09 04 ................<BR />0060: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />0070: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />0090: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />00a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />00b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />00c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />00d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />00e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................<BR />00f0: ff ff ff ff ff ff ff ff ff ff ff ff d6 99 ac 19 ................<BR />=&gt;</P> Thu, 11 Jan 2024 11:19:15 GMT https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1787171#M13863 yipingwang 2024-01-11T11:19:15Z https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1787220#M13864 <P>Nope, on my board it's all 0xFF</P><P>&nbsp;</P> Thu, 11 Jan 2024 13:08:34 GMT https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1787220#M13864 mikelooijmans 2024-01-11T13:08:34Z https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1787221#M13865 <LI-CODE lang="markup">=&gt; i2c md 0x57 0 100 0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0030: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0040: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0050: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0060: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0070: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 0090: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 00f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................</LI-CODE> Thu, 11 Jan 2024 13:12:29 GMT https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1787221#M13865 mikelooijmans 2024-01-11T13:12:29Z https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1787932#M13870 <P>This should be abnormal</P> Fri, 12 Jan 2024 09:52:54 GMT https://community.nxp.com/t5/Layerscape/ls1028ardb-EEPROMs-are-empty/m-p/1787932#M13870 yipingwang 2024-01-12T09:52:54Z