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something wrong when I read converted results from ads1248

Lees
Prodigy 30 points

this is the results I read，sudden rising and falling datas generated during the process. I fell confused about the

phenomenon, can anyone help me ? thank you!

  • 0
    TI__Guru** 113765 points

    Hi Lees,

    Welcome to the forum!  What do you have connected to the inputs?  Which reference are you using?  Are you using RDATAC or are you reading out the results using RDATA command?  One possibility of this behaviour is if the the inputs are floating.  Another possibility is new conversion updated results are being posted at the same time as the data read.  A third possibility is you are using the default reference selection and you have no voltage connected to the reference inputs.

    Can you send me your schematic?  And the answers to the above questions?

    Thanks and best regards,

    Bob B