https://community.nxp.com/t5/Kinetis-Microcontrollers/Configure-Flash-Security/m-p/1613874#M64838 <P>Hi All,</P><P>I'm working with the MK22FN1M0Axxx12, our solution is based on Bootloader + Custom Application.</P><P>Now, I should enable the Secure Mode and I'm able to enable it changing the definition of the&nbsp;Flash_Config ( defined into the file startup_*.c ) of the Bootloader.</P><P>We have many device in field so I should enable the secure mode by our application, I have done the same steps changing the file startup_*.c of the Application's project but it seems that it doesn't work.&nbsp;</P><P>So I have a doubs, is it possible enabling the secure mode from the application?</P><P>Best regards,</P><P>Giampietro Pomponio</P> Mon, 13 Mar 2023 08:52:45 GMT giampietropompo 2023-03-13T08:52:45Z https://community.nxp.com/t5/Kinetis-Microcontrollers/Configure-Flash-Security/m-p/1613874#M64838 <P>Hi All,</P><P>I'm working with the MK22FN1M0Axxx12, our solution is based on Bootloader + Custom Application.</P><P>Now, I should enable the Secure Mode and I'm able to enable it changing the definition of the&nbsp;Flash_Config ( defined into the file startup_*.c ) of the Bootloader.</P><P>We have many device in field so I should enable the secure mode by our application, I have done the same steps changing the file startup_*.c of the Application's project but it seems that it doesn't work.&nbsp;</P><P>So I have a doubs, is it possible enabling the secure mode from the application?</P><P>Best regards,</P><P>Giampietro Pomponio</P> Mon, 13 Mar 2023 08:52:45 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Configure-Flash-Security/m-p/1613874#M64838 giampietropompo 2023-03-13T08:52:45Z