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internal test signal

David Martinez1
Prodigy 20 points
Other Parts Discussed in Thread: ADS1298

Hi !

I have a trouble reading the data from ADS1298, when I confiure the register to get the internal test sinal I get the signal show in the file 7115.resultados ads1298.xlsx . 

what is the recomended configuration to obtain the test signal?

when I put the device in electrode input mode I always get 0x7FFFFF in the SPI data, what's wrong?.

someone can help me ?

regards.

  • 0
    TI__Guru 66186 points

    Hi David, 

    Sorry for missing this post. Where you able to get the Test Signal working correctly in the ADS1298?

    The test signal source, amplitude, and frequency can be selected in the CONFIG2 register. Also, you must change the MUXN[2:0] bits in the CHnSET registers to select the Test Signal as your input.

    If you still have an issue, please share your complete register settings with us and we can have a look.

    Best Regards,