topic Regarding EEPROM 2 bit ECC Machine exception in S12 / MagniV Microcontrollers https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Regarding-EEPROM-2-bit-ECC-Machine-exception/m-p/841817#M16016 <HTML><HEAD></HEAD><BODY><P>The EEPROM Flash 2 bit fault will generate a machine exception.</P><P>Will this case hold true if we "simulate" the double bit fault by setting the FDFD bit.</P></BODY></HTML> Tue, 18 Sep 2018 18:06:17 GMT pratibhasurabhi 2018-09-18T18:06:17Z Regarding EEPROM 2 bit ECC Machine exception https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Regarding-EEPROM-2-bit-ECC-Machine-exception/m-p/841817#M16016 <HTML><HEAD></HEAD><BODY><P>The EEPROM Flash 2 bit fault will generate a machine exception.</P><P>Will this case hold true if we "simulate" the double bit fault by setting the FDFD bit.</P></BODY></HTML> Tue, 18 Sep 2018 18:06:17 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Regarding-EEPROM-2-bit-ECC-Machine-exception/m-p/841817#M16016 pratibhasurabhi 2018-09-18T18:06:17Z Re: Regarding EEPROM 2 bit ECC Machine exception https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Regarding-EEPROM-2-bit-ECC-Machine-exception/m-p/841818#M16017 <HTML><HEAD></HEAD><BODY><P>Hi Pratibha,</P><P>no, forcing the DFDF status bit by setting FDFD (see Section 20.3.2.5) has effect only on the DFDF status bit value and does not result in an invalid access.</P><P>See<STRONG style="color: #51626f; background-color: #ffffff; border: 0px; font-weight: bold;"><A _jive_internal="true" class="" data-containerid="11493" data-containertype="14" data-content-finding="Community" data-objectid="334381" data-objecttype="102" href="https://community.nxp.com/docs/DOC-334381" style="color: #3d9ce7; background-color: transparent; border: 0px; font-weight: inherit; padding: 1px 0px 1px calc(12px + 0.35ex);">S12Z - Simulating ECC errors at EEPROM by cumulative write</A>&nbsp;</STRONG>example code for more details regarding simulating machine exception due to double bit ECC error.</P><P></P><P><BR />I hope it help you</P><P></P><P>Have a great day,<BR />Radek</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 20 Sep 2018 08:50:43 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Regarding-EEPROM-2-bit-ECC-Machine-exception/m-p/841818#M16017 RadekS 2018-09-20T08:50:43Z