partition flash to EEPROM configuration K40x256

[Mar_adelos_ngel]

Hi  people,

I am developing an application using  Kinetis K40x256cmd100 development board. I am trying to configure EEPROM from the flex memory available in the controller.

I have read the app note AN4282. But when I tried Program Partition, send me a error (ACCERR   bits[  5:5  ] = 1 No access error detected)...

someone can explain me?, if I need doing something before the partition?

This is my code, only partition comand

/* Write the FCCOB registers */

  FTFL_FCCOB0 = FTFL_FCCOB0_CCOBn(0x80); // Selects the PGMPART command

  FTFL_FCCOB1 = 0x00;

  FTFL_FCCOB2 = 0x00;

  FTFL_FCCOB3 = 0x00;

  FTFL_FCCOB4 = 0x39; /*subsytem A(16bytes) + B(16bytes)EEPROM Data Set Size (Bytes)*/

  FTFL_FCCOB5 = 0x05; /*Data flash 128Kbytes & 128 Kbytes to EEPROM backup size*/

  FTFL_FCCOB6 = 0;

  FTFL_FCCOB7 = 0;

  FTFL_FCCOB8 = 0;

  asm("CPSID i");

  NVM_ExecuteCommand();

  asm("CPSIE i");

[adriancano]

Hi Maria de los Angeles,

You can check the Kinetis examples for the MK40X256VMD100. You can find them here: TWR-K40X256: Kinetis K40 Tower System Module

Go to:  CodeWarrior Samples\CW_MCU_v10_1_Examples\rev_1_4\build\cw10\k40\flexmem. There you will find the flexmem project which includes the configuration for the EEPROM use.

I hope this information can help you!

You can refer to this thread: Re: Demo code for using EEPROM feature on K20, 50 Mhz device

Best Regards,

Adrian