Erasing DSP flash

Hi all,

I have bought a few DSP - TMS320F2810 from a broker. When opening the
flash utility, the flash is password locked. When the password addresses in
flash memory((0x3F7FF8 - 0x3F7FFF)) verified, it shows all zeros. This
means that, the DSPs are already locked. But without knowing the password,
it can never be unlocked, using JTAG emulator.

Does , anybody know , some other method to erase the flash (including the
password )completely, so that I can reuse the DSPs.

Regards,

Nimmy Ranjit

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Hi,
The Flash memeory in C28x's are code protected. You need to unlock the flash memory if you want to erase/ to program. It is 128 bit password. The default password is all '1' ie "0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF".
try this.

regards
sheik

Hi all,
>
> I have bought a few DSP - TMS320F2810 from a broker. When opening the
>flash utility, the flash is password locked. When the password addresses in
>flash memory((0x3F7FF8 - 0x3F7FFF)) verified, it shows all zeros. This
>means that, the DSPs are already locked. But without knowing the password,
>it can never be unlocked, using JTAG emulator.
>
>Does , anybody know , some other method to erase the flash (including the
>password )completely, so that I can reuse the DSPs.
>
>Regards,
>
>Nimmy Ranjit
>
>_____________________________________

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