Question about F021 - Fapi_issueProgrammingCommand

Hi Siddharth Deshpande,

Thank you for your Reply,

It's an RM48L952/

The solution that I see is load the full sector in the SDRAM,make the modification, erase the sector and write the sector again.

Do you suggest other procedure?

Regards,

Yes, that is the only approach.  How frequently do you need to do this?

Regards,

Siddharth

Hi Siddharth Deshpande,

The device needs to load some files, so speaking in long term no more than 20~50 writes per day.

I'm going to maximize the size of the buffers so won't be required so much to do this.

Why do you ask it?

The safety is important in the device. It's the RAM or FLASH weak or has a sensible usage/deterioration?

I would appreciate any kind of information.

Regards

The only concern I see here is that Flash has a limited number of write/erase cycles.
If you are doing it very frequently, you may exceed this number.

If you are trying to update the data in Bank7, you can consider using the Fee driver included in HALCoGen. This driver emulates EEPROM functionality on Flash memory.

 Regards,

Siddharth

Hi Siddharth,

Thank you for your reply,

But the Bank7 Emulated as EEPROM has the same write/erase cycles as any other bank, right?

I can't see any description of the write/erase cycles in the specification for this mode.

Thanks.

Hi,

The FEE driver emulates EEPROM functionality on Flash.  As Flash has a limited number of write/erase cycles , everytime the same piece of data is requested to be written/updated, a new version of the data is stored at a different flash locations in the same Flash sector. The driver keeps track of the most current value and a read operation will return the most current value. Using this approach,  the number of write/erase cycles are minimized and the life of the flash is extended.

http://processors.wiki.ti.com/index.php/TI_FEE

Regards,

Siddharth

Hi Siddharth,

Thats perfect, I will evaluate that possibility with the team,

Regards,