topic EEPROM write and read in s32k while device is secure in S32K https://community.nxp.com/t5/S32K/EEPROM-write-and-read-in-s32k-while-device-is-secure/m-p/2156022#M52047 <P>I tried writing and reading to the EEPROM, and it works when the device is unsecure. However, after enabling device security through the FSEC bit and flashing the hex file, the EEPROM stops working.</P> Thu, 21 Aug 2025 11:02:01 GMT Saranraj 2025-08-21T11:02:01Z EEPROM write and read in s32k while device is secure https://community.nxp.com/t5/S32K/EEPROM-write-and-read-in-s32k-while-device-is-secure/m-p/2156022#M52047 <P>I tried writing and reading to the EEPROM, and it works when the device is unsecure. However, after enabling device security through the FSEC bit and flashing the hex file, the EEPROM stops working.</P> Thu, 21 Aug 2025 11:02:01 GMT https://community.nxp.com/t5/S32K/EEPROM-write-and-read-in-s32k-while-device-is-secure/m-p/2156022#M52047 Saranraj 2025-08-21T11:02:01Z Re: EEPROM write and read in s32k while device is secure https://community.nxp.com/t5/S32K/EEPROM-write-and-read-in-s32k-while-device-is-secure/m-p/2156573#M52078 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/217037">@Saranraj</a>,</P> <P>The Flash Configuration Field can also set protection for the Emulated EEPROM.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="danielmartynek_0-1755846780840.png" style="width: 551px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/353647iC76B2BBF52478A73/image-dimensions/551x292?v=v2" width="551" height="292" role="button" title="danielmartynek_0-1755846780840.png" alt="danielmartynek_0-1755846780840.png" /><span class="lia-inline-image-caption" onclick="event.preventDefault();">danielmartynek_0-1755846780840.png</span></span></P> <P>Do you have a communication interface that can be used to send the content of the 0x400-0x40F memory out while the MCU is secure?</P> <P>&nbsp;</P> <P>Regards,</P> <P>Daniel</P> <P>&nbsp;</P> <P>&nbsp;</P> <P>&nbsp;</P> Fri, 22 Aug 2025 07:15:58 GMT https://community.nxp.com/t5/S32K/EEPROM-write-and-read-in-s32k-while-device-is-secure/m-p/2156573#M52078 danielmartynek 2025-08-22T07:15:58Z