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AD8403 - SDPAPI interface

Hi

 

I am trying to communicate to the AD8403 Evaluation board via SDP-B platform. I have received an evaluation software with the board which works fine. I would like to communicate to the board via VB.net script and hence I am using the sdpapi1.dll which comes with the software. However I am not able to the connect to the board because the sdp needs a unique ID to identify the daughter board connected to the SDP. Can anyone please help me with the ID.

 

Thank you

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  • Hi,

    Ok, sounds like you're successfully communicating to the part.

    As you've stated the AD8403 requires a 10-bit write, what I suspect is happening is the part is taking the eight LSB and the part is adding 0, 0 for the address.

    To change the address, you'll need to change A1 and A0 (Bits 10 and 9). Im not familiar with the code but I believe that there is a parameter called "word size" or "word length" that needs to be changed from 8 to 10 bits.

    If you need further assistance with the SDP code, the guys at http://ez.analog.com/community/circuits_from_the_lab/sdp will be better able to help you. If you have any more questions on the AD8403, please let me know.

    Kind Regards,

    David

Reply
  • Hi,

    Ok, sounds like you're successfully communicating to the part.

    As you've stated the AD8403 requires a 10-bit write, what I suspect is happening is the part is taking the eight LSB and the part is adding 0, 0 for the address.

    To change the address, you'll need to change A1 and A0 (Bits 10 and 9). Im not familiar with the code but I believe that there is a parameter called "word size" or "word length" that needs to be changed from 8 to 10 bits.

    If you need further assistance with the SDP code, the guys at http://ez.analog.com/community/circuits_from_the_lab/sdp will be better able to help you. If you have any more questions on the AD8403, please let me know.

    Kind Regards,

    David

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