topic EEPROM protection in MK20dx256 in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/EEPROM-protection-in-MK20dx256/m-p/332024#M15571 <HTML><HEAD></HEAD><BODY><P>I need to know how to protect the partitioning and contents of the EEPROM when I do a firmware update on a <SPAN style="font-size: 10pt; font-family: 'Arial','sans-serif';">MK20dx256.</SPAN></P></BODY></HTML> Fri, 19 Sep 2014 15:46:57 GMT mgreenhalgh 2014-09-19T15:46:57Z EEPROM protection in MK20dx256 https://community.nxp.com/t5/Kinetis-Microcontrollers/EEPROM-protection-in-MK20dx256/m-p/332024#M15571 <HTML><HEAD></HEAD><BODY><P>I need to know how to protect the partitioning and contents of the EEPROM when I do a firmware update on a <SPAN style="font-size: 10pt; font-family: 'Arial','sans-serif';">MK20dx256.</SPAN></P></BODY></HTML> Fri, 19 Sep 2014 15:46:57 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/EEPROM-protection-in-MK20dx256/m-p/332024#M15571 mgreenhalgh 2014-09-19T15:46:57Z Re: EEPROM protection in MK20dx256 https://community.nxp.com/t5/Kinetis-Microcontrollers/EEPROM-protection-in-MK20dx256/m-p/332025#M15572 <HTML><HEAD></HEAD><BODY><P>Hi Mark,</P><P></P><P>I think you may change the bits in FTFL_FEPROT from 1s to 0s to protect EEPROM regions from programming or erasing. Please note only writes changing 1s to 0s are accepted. so after firmware updated, you should perform a reset to the whole system to restore the FTFL_FEPROT with 0xFF.</P><P><BR />Have a great day,<BR />Kan</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Mon, 22 Sep 2014 06:07:38 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/EEPROM-protection-in-MK20dx256/m-p/332025#M15572 Kan_Li 2014-09-22T06:07:38Z