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Original question:

FEE example codes questions

TMS570LS1224: FEE addressable driver

Long Nguyen89978
Prodigy 50 points
Part Number: TMS570LS1224
Other Parts Discussed in Thread: HALCOGEN

Dear Support,

I would like to use bank 7 of the flash for Calibration data, accessed via XCP CAN.

I realized that the Halcogen uses sectors and data blocks to access the region. Do we have a driver that can access the FEE using address directly?

If not, can you guide me how to implement that?

Many thanks,

Phil

  • 0
    TI__Guru**** 193086 points

    Hello,

    The data in bank 7 written using FEE driver can not be read using the address directly. It has to be read by block number using the FEE driver.

    How often do you update your calibration data? If the calibration data is constant, you can program the data to a dedicated address using F021 API.

    If you keep changing the calibration data during your application, you need to use the FEE driver to write the data to bank 7.

  • 0 in reply to QJ Wang
    Prodigy 50 points

    Hi QJ Wang,

    Many thanks for your reply. I don't need to update it regularly, only when XCP requested to change the data.

    Do you have an example using F021 API for bank 7? I was trying to use F021 API, but I found an issue that I don't know how to do it properly.

    For example I wanna change a calibration data type uint32 at 0xF0200008, how can I do that? Do I have to delete the whole sector first? If so, it will affect the other calibration data. What is the correct way to use it?

    Many thanks

    Phil

  • 0 in reply to Long Nguyen89978
    TI__Guru**** 193086 points

    Hi Phil,

    Please use the attached files example of using F021 flash API library:

    8055.bl_flash.h

  • 0 in reply to QJ Wang
    TI__Guru**** 193086 points

    I can erase the sector and program the data to the sector in bank7:

    status = Fapi_BlockErase(7, 0xF0200000, 64);   //erase the sector 0 of bank 7
    status = Fapi_BlockProgram(7, 0xf0200000, (unsigned long)&Success, 64); //program 64 bytes of data located at &Success