TMS320F28027 internal ram storage

Ashutosh Pailwan1

Other Parts Discussed in Thread: TMS320F28027, CONTROLSUITE

Instead of using external EEPROM I am intersted to store the data in the memory of TMS320F28027

Is there any facility to store data internally without using external EEPROM. So that in case of reset of Chip, the data will stored there permanaetly.

over 10 years ago

0 Maria Todorova over 10 years ago

Guru 13185 points

Hello,
You can store data in the flash. Please read this document www.ti.com.cn/.../sprab69.pdf
And the example for using its API is in this folder controlSUITE\libs\utilities\flash_api\2802x

Best regards,
Maria

0 Ashutosh Pailwan1 over 10 years ago in reply to Maria Todorova

Expert 2480 points

But by storing in flash will it be not erased when it is reset Since the data will be stored in the variables won't it will b erased once it is reset

0 Gautam Iyer over 10 years ago

Guru 192875 points

Hi Ashutosh,

If you're planning to store data address wise then you can go through "Emulating EEPROM in FLASH".
http://www.ti.com/mcu/docs/litabsmultiplefilelist.tsp?sectionId=96&tabId=1502&literatureNumber=sprab69&docCategoryId=1&familyId=919

Regards,
Gautam

0 Maria Todorova over 10 years ago in reply to Ashutosh Pailwan1

Guru 13185 points

Ashutosh Pailwan1 said:
But by storing in flash will it be not erased when it is reset

No, it will not be erased when reset.

You should prepare one sector of flash that special for your data, that will not get disturbed by other data.

Please read the document that I gave (I think the same with the one that Gautam gave) to learn the trick about this.

Best regards,

Maria

0 Ashutosh Pailwan1 over 10 years ago in reply to Maria Todorova

Expert 2480 points

Dear The document refere in "Emulating EEPROM in FLASH".
www.ti.com/.../litabsmultiplefilelist.tsp;tabId=1502&literatureNumber=sprab69&docCategoryId=1&familyId=919

is very difficult to understand and has complex programming
My requirement is to store few constants value at some other address and recall it whenever require.
Also I need to update the constant .
Thus even if the CPU restarts the address at which constant is stored should contain last updated value.

0 Gautam Iyer over 10 years ago in reply to Ashutosh Pailwan1

Guru 192875 points

Yes, Ashu... you can download the zip file from above link to get the sample code which is easy to understand.

Regards,
Gautam

0 Ashutosh Pailwan1 over 10 years ago in reply to Gautam Iyer

Expert 2480 points

You didnt got my question
I dont want to do emulation of EEpROM as it can be complex
My requirement is to store few constants value at some other address and recall it whenever require.
Also I need to update the constant .
Thus even if the CPU restarts the address at which constant is stored should contain last updated value.
can it be done with some pointers

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TMS320F28027 internal ram storage