topic Re: FlexRAM as EEPROM in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/FlexRAM-as-EEPROM/m-p/371917#M19352 <HTML><HEAD></HEAD><BODY><P>Thank you very much! I was wondering about that, I guess I'm lucky you helped me!</P><P></P><P>Mike</P></BODY></HTML> Thu, 12 Feb 2015 21:18:58 GMT mevon 2015-02-12T21:18:58Z FlexRAM as EEPROM https://community.nxp.com/t5/Kinetis-Microcontrollers/FlexRAM-as-EEPROM/m-p/371915#M19350 <HTML><HEAD></HEAD><BODY><P><SPAN class="j-post-author"><SPAN class="font-color-meta-light j-thread-replyto"></SPAN></SPAN>Hello,</P><P></P><P>I would like to have more help on the subject of FlexRAM as EEPROM. I am using a K20DX256 and Kinetis Design Studio (KDS) and I would like to use the FlexRAM + FlexNVM + EEEController to store some data with endurance as a normal EEPROM would be.</P><P></P><P>From AN4282 : Using the Kinetis Family Enhanced EEPROM Functionality :</P><P>“How FlexMemory EEE works</P><P>To provide enhanced EEPROM functionality, the FlexMemory uses a RAM block (FlexRAM), a flash</P><P>block (FlexNVM), and EEE state machine. When the EEE functionality is enabled, the FlexRAM becomes</P><P>your EEE memory. The FlexRAM address space is where you access all of your EEE data. When the EEE</P><P>is accessed, the EEE state machine keeps track of the data and backs it up as data records, stored in some</P><P>portion of the FlexNVM used as an E-flash. Using a large block of E-flash to back up the data for a smaller</P><P>amount of EEE data allows the FlexMemory EEE implementation to offer extremely high endurance.</P><P>”</P><P>My guess is I need to access the FlexRAM to access the FlexNVM and from the Reference Manual,&nbsp; FlexRAM address range = 0x1400_0000 – 0x1400_07FF.</P><P></P><P>I think I have all the bits configured right in the CPU component of Processor Expert regarding the Flex Memory Settings and the configuration of the ROM/RAM areas in the Build Options tab too.</P><P></P><P>My trouble resides in the way of writting and reading the data in the FlexRAM, anyone has a clue on how to proceed? And if there are PExp componants already made for this purpose?</P><P></P><P>Thanks in advance,</P><P>MH</P><P></P><P>(I have already consulted and posted here: <A _jive_internal="true" href="https://community.nxp.com/thread/328422">https://community.freescale.com/thread/328422</A>)</P></BODY></HTML> Thu, 12 Feb 2015 18:43:32 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/FlexRAM-as-EEPROM/m-p/371915#M19350 mevon 2015-02-12T18:43:32Z Re: FlexRAM as EEPROM https://community.nxp.com/t5/Kinetis-Microcontrollers/FlexRAM-as-EEPROM/m-p/371916#M19351 <HTML><HEAD></HEAD><BODY><P>Hi,&nbsp;&nbsp; </P><P></P><P>Please, send your post to kinetis community (e.g. Kinetis Microcontrollers ) to get it visible for active members.</P><P></P><P>Regards</P><P></P><P>Soledad</P></BODY></HTML> Thu, 12 Feb 2015 18:46:37 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/FlexRAM-as-EEPROM/m-p/371916#M19351 soledad 2015-02-12T18:46:37Z Re: FlexRAM as EEPROM https://community.nxp.com/t5/Kinetis-Microcontrollers/FlexRAM-as-EEPROM/m-p/371917#M19352 <HTML><HEAD></HEAD><BODY><P>Thank you very much! I was wondering about that, I guess I'm lucky you helped me!</P><P></P><P>Mike</P></BODY></HTML> Thu, 12 Feb 2015 21:18:58 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/FlexRAM-as-EEPROM/m-p/371917#M19352 mevon 2015-02-12T21:18:58Z