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ADS1299: Question of necessary port connect to CPU and ADS1299.

Inho Jeon
Expert 1452 points
Part Number: ADS1299


ADS1299_CPU_IO.pdf

Hi, All.

I attached a file ; That is Block diagram ADS1299 refer to ADS1299EEGFE-PDK schematics.

Port of connecting to CPU and ADS1299  is too many.

So, Inform me necessary port connecting to CPU and ADS1299, ASAP.

Best Regards,

Inho Jeon.

  • 0
    TI__Guru 67206 points
    Hello Inho,

    The minimum signals you need to connect to the CPU for communication are DIN, DOUT, SCLK, /CS, and /DRDY. CLKSEL should be tied low with a resistor since you are applying an external CLK source. The START, /RESET, and /PWDN pins can be tied permanently high with a pull-up resistor. The GPIO pins and DAISY_IN can be pulled low to ground with a resistor if unused. These pins are connected to the CPU when customers wish to control them via software.

    Best Regards,