Flash EEPROM Emulation

David Rodriguez Rodriguez

Other Parts Discussed in Thread: TMS570LS3137, HALCOGEN

I´m using TMS750LS3137, I need to program, erase or read on EEPROM bytes/bytes. ¿Can I program individual bytes without erase them before?.

Regards.

over 12 years ago

0 Zhaohong Zhang over 12 years ago

TI__Mastermind 22715 points

David,

The minimum unit you can erase is a sector. Since the ECC checking/correction is based on 64 bit data. I would recommend you update the Flash content with 64 bit data.

Thanks and regards,

Zhaohong

0 enrico terraneo over 11 years ago in reply to Zhaohong Zhang

Intellectual 695 points

Hi Zhaohong,

Are you sure that the minumum unit I can erase is a Sector?

I'm using F021 Api. In TMS570LS3137, EEPROM sector length is 0x04000 Bytes (16K Bytes), so to update only one byte it is necessary erase 16K Bytes, is correct ?

If this is true, in the TMS570LS31x/21x Technical Reference Manual there is the following error (underline in red) .

Thanks

Enrico

0 John Hall over 11 years ago in reply to enrico terraneo

TI__Genius 9015 points

Hi Enrico,

What you need is a Flash EEPROM Emulation (FEE) driver that will handle these details. A TI FEE is available for the TMS570LS31x/21x in HALCoGen.

0 enrico terraneo over 11 years ago in reply to John Hall

Intellectual 695 points

Hi,

I tried to use the Flash EEPROM Emulation (FEE) driver in Halcogen but I have some problems.
Has anyone tried to use it?

Thanks

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Flash EEPROM Emulation