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Freescale Freedom Development Platform (Questions and Answers)

FreescaleTools_and_Software

Hello FRDM-KL25Z buyer

 

You are already thousands of customers who ordered this board.

In order to make your life easier, with a single place where to find relevant informations concerning this tool, I will try to collect in this post the answered questions concerning FRDM-KL25Z, found in different places like Freescale community, groups from Element14 Community or anywhere on the web ...

 

I will publish regularly (in the document section from this group) some very instructive tutorials produced by my colleague Erich Styger, which should help you to take in hand FRDM-KL25Z and its software tools (Codewarrior 10.3beta, Processor Expert ...).

 

Don't hesitate to post here your new questions that we can answer it and share it with the community.


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  • QUESTION

    You are writing some datas to flash memory (eeprom emulation) using FRDM-KL25Z.

    You want to check what data you wrote (since you don't have LCD).

    Is there a way to check the data that you wrote using codewarrior IDE ?


     


    ANSWER

    You can use Processor Expert to read and write the flash:

    First, you have to reserve some Flash pages for data storage. Do that in the CPU Build Options, Reduce the Flash for code, for example :

     

    1.bmp

     

    Then, configure those pages to be used by Flash component:

     

    2.bmp

     

     

    Then, enable the Flash methods you need:

    3.bmp

     

     

    Now, you can save the data in the code:

     

    Read:

     

    FLASH1_Read(FLASH1Pointer,0x1F000, &savedData.red, sizeof(savedData));

       do {

                   FLASH1_Main(FLASH1Pointer);

           OpStatus = FLASH1_GetOperationStatus(FLASH1Pointer);

       } while (!((OpStatus == LDD_FLASH_IDLE) | (OpStatus == LDD_FLASH_FAILED)));

     

     

     

    Erase one page, in case is not 0xFF the locations to write:

     

    FLASH1_Erase(FLASH1Pointer, 0x1F000, 1024);

                   do {

                                  FLASH1_Main(FLASH1Pointer);

                                  OpStatus = FLASH1_GetOperationStatus(FLASH1Pointer);

                   } while (!((OpStatus == LDD_FLASH_IDLE) | (OpStatus == LDD_FLASH_FAILED)));

     

     

     

    And then write the data in Flash:

     

    FLASH1_Write(FLASH1Pointer, FromPtr, 0x1F000, Size);

     

                   do {

                           FLASH1_Main(FLASH1Pointer);

                           OpStatus = FLASH1_GetOperationStatus(FLASH1Pointer);

                   } while (!((OpStatus == LDD_FLASH_IDLE) | (OpStatus == LDD_FLASH_FAILED)));

  • in reply to FreescaleTools_and_Software

    I'm trying to create an emulation EEPROM for KL25Z-FRDM (using CW 10.5). But I can not find out the "Use user memory areas" selection to config Flash component.

    image

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