https://community.nxp.com/t5/MPC5xxx/Power-failure-while-writing-data-to-EEPROM/m-p/1604406#M22945 <P>Well, in case of unexpected power-down, the brownout handling needs to be managed on application level. Typically, the data integrity can be secured by CRC over certain chunks of data etc. It is also good idea to have default data/configuration stored in MCU flash which can be loaded to EEPROM in case of some failure.</P> <P>Regards,</P> <P>Lukas</P> Thu, 23 Feb 2023 08:30:33 GMT lukaszadrapa 2023-02-23T08:30:33Z https://community.nxp.com/t5/MPC5xxx/Power-failure-while-writing-data-to-EEPROM/m-p/1601409#M22894 <P>Hello everyone</P><P>I am using an EEPROM(M95M01-A125) working with SPI communication.<BR />I save my data every 500ms intervals.</P><P>1-) How long can the EEPROM last?<BR />2-) What precautions can be taken in case of power failure during data recording?</P><P>&nbsp;</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="MuhammedKoyuncu_0-1676719251925.png" style="width: 804px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/211448iDD86D86B93161F42/image-dimensions/804x147?v=v2" width="804" height="147" role="button" title="MuhammedKoyuncu_0-1676719251925.png" alt="MuhammedKoyuncu_0-1676719251925.png" /></span></P><P>Kind regards</P> Sat, 18 Feb 2023 11:21:55 GMT https://community.nxp.com/t5/MPC5xxx/Power-failure-while-writing-data-to-EEPROM/m-p/1601409#M22894 MuhammedKoyuncu 2023-02-18T11:21:55Z https://community.nxp.com/t5/MPC5xxx/Power-failure-while-writing-data-to-EEPROM/m-p/1601664#M22900 <P>Hi,</P> <P>it seems this is a question rather for ST, not for NXP...</P> <P>Regards,</P> <P>Lukas</P> Mon, 20 Feb 2023 06:01:59 GMT https://community.nxp.com/t5/MPC5xxx/Power-failure-while-writing-data-to-EEPROM/m-p/1601664#M22900 lukaszadrapa 2023-02-20T06:01:59Z https://community.nxp.com/t5/MPC5xxx/Power-failure-while-writing-data-to-EEPROM/m-p/1602077#M22908 Hi,<BR />The chip I gave was just an example.<BR />I know it's generally used the same way.<BR />What can we do in the software to avoid such a situation? Mon, 20 Feb 2023 14:26:02 GMT https://community.nxp.com/t5/MPC5xxx/Power-failure-while-writing-data-to-EEPROM/m-p/1602077#M22908 MuhammedKoyuncu 2023-02-20T14:26:02Z https://community.nxp.com/t5/MPC5xxx/Power-failure-while-writing-data-to-EEPROM/m-p/1604406#M22945 <P>Well, in case of unexpected power-down, the brownout handling needs to be managed on application level. Typically, the data integrity can be secured by CRC over certain chunks of data etc. It is also good idea to have default data/configuration stored in MCU flash which can be loaded to EEPROM in case of some failure.</P> <P>Regards,</P> <P>Lukas</P> Thu, 23 Feb 2023 08:30:33 GMT https://community.nxp.com/t5/MPC5xxx/Power-failure-while-writing-data-to-EEPROM/m-p/1604406#M22945 lukaszadrapa 2023-02-23T08:30:33Z