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ADS1231: Can i use ADS1231 EVM board for data acquisition through my microcontroller?

Rishabh Mishra
Prodigy 100 points
Part Number: ADS1231
Other Parts Discussed in Thread: MSP430F449,

Tool/software:

I am using the ADS1231 EVM refernce board for data acquisition through DOUT & SCLK Test points mentioned in the EVM board. The test points are mentioned in the red cicles on the EVM reference board picture.

Can i do this or not?

If possible then how can i do that.I am using RL78-I1B as my micro.

Waiting for a fruitful response.

  • 0
    TI__Mastermind 43140 points

    Hello Rishabh,

    Yes, you should be able to use these connections from your controller board.  In addition to the SCLK and DOUT, you will also need to set the SPEED and PDWN pins.  PWDN needs to be pulled high to power-up the ADC, and SPEED high sets data rate to 80sps and SPEED low sets data rate to 10sps.

    Since these pins are connected to the MSP430F449 MCU on the ADS1231REF board, and all of these are outputs from the MSP430, except for DOUT, you need to hold the MSP430 on the ADS1231REF board in RESET to force the pins to a hi-z state.  This will allow your external MCU to control these signals.

    Regards,
    Keith Nicholas
    Precision ADC Applications