TMS320f28335 write into flash memory.

Hi Paul,

Here's the flash structure for F28335:

It is possible to write so many values without damaging any code or data.

256 uint16 values : for sure, you should be able to write them. Do try and let me know.

Until which address I can write on SECTOR_B.

You can utilize the complete range: 0x33 0000 - 0x33 7FFF

Regards,

Gautam

Hello Gautam,

I have tried the Flash library with Flash2833x_API_ReadWrite function :

- First call for deleting Sector_B:

Flash2833x_API_ReadWrite(SECTOR_B, 0U, FLASH_ERASE , (uint16_T *)Buffer_Data,
No_data_Lenght[0]);

- Second call for writing my data into Sector_B:

Flash2833x_API_ReadWrite(SECTOR_B, 0U, FLASH_WRITE , (uint16_T *)Buffer_Data,
2* No_data_Lenght[0]);

For 3,10 values works fine, but for 20 values gets stucked in the erasing part, and I don't n know why. 

Any suggestion ?

Best Regards,

Paul.

Hi Paul,

What is you application or in short what do you want to achieve by writing these variables to a different sector of that of the code sector?

If storing, updating and retrieving these variables is the only purpose then why not use "Emulating EEPROM" Guide?

4073.EEPROM Emulation.pdf

Regards,

Gautam

Hello Gautam,

I have managed to write 256 values into SECTOR_B with this modifications (bold):

DINT;

Flash2833x_API_ReadWrite(SECTOR_B, 0U, FLASH_ERASE , (uint16_T *)Buffer_Data,
No_data_Lenght[0]);

Flash2833x_API_ReadWrite(SECTOR_B, 0U, FLASH_WRITE , (uint16_T *)Buffer_Data,

2* No_data_Lenght[0]);

EINT;

I presume it is ok to disable all interrupts during erase/write process...

Thanks,

Paul.

That's great, Paul. Yup, its fine to disable interrupts while writing but I also hope due to this delay there's no other critical task waiting to get the cpu time!

Regards,

Gautam