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Hello if there are specialist , contact me ! , because these is  a great problem for my application and i am stopped for this reason

Yours sincerely

Bacha,

From your description it sounds like you are trying to connect to a 'LF2407A eZdsp from Spectrum Digital.

I would recommend contacting Spectrum Digital for support.  (http://www.spectrumdigital.com/)

(the file ezlf2407a_techref.pdf is the main guide that explains the eZDSP board, it goes through most of the specifics of the board such as the function of DS1.  If you don't have this guide, Spectrum Digital should be able to provide it to you)


Thank you,
Brett

Brett ,

Thank you very much for your contribution, and i have DSP LF2407 A "TI", and it's not the state eZdsp

Thank you,
Bacha

Bacha,

To confirm, does your board look like the below:

Thank you,
Brett

Brett,

To confirm, my board look like the below:

Thank you,
Bacha.

Bacha,

Your picture did not post. 

Is this your own custom-designed board or one that you bought?


Thank you,
Brett

Brett,

my board look like the below :

if the picture did not posted it's in this evm "http://c2000.spectrumdigital.com/evmlf2407a/docs/evmlf2407a_techref.pdf""" at the page number 2-3. 

thank you,

Bacha

Bacha,

OK.  My guess is that the LF2407 may be damaged on the board (and would require replacing via the socket).

However, I would recommend contacting Spectrum Digital for support.


Thank you,
Brett

Bacha,

Based on the picture of the kit, it looks like the LF2407 device is located inside a socket.  If you wanted to, you could buy a new LF2407 device and replace the chip in the socket.  If the LF2407 device was damaged by ESD or something else, replacing the device might resolve the issue with the EVM320LF2407 board..

It is still probably best to ask Spectrum Digital because they will know more about the board.


Thank you,
Brett