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End of conversion signal ADS1015

Onkelinx Ghislain
Prodigy 20 points
Other Parts Discussed in Thread: ADS1015

Hi,

we using the ADS1015.

The communication to the device works fine, we can configure and read the signals.

At this moment we using a delayed loop to check the end of the ADC conversion.

In the data sheet we had seen that we can using the output signal ALERT/RDY to check when the conversion is ready to read.

Therefore we should information to the Lo_thresh and Hi_thresh registers.

If we had good understand the description from the data sheet, the Lo register should be 0x0000 and the HI register 0x8000.

What is imported to let works the conversion RDY signal?

What we must write to the different registers?

many thanks

  • 0
    TI__Guru* 92655 points

    Hi,



    If you are using the ALERT/RDY pin as the comparator output, you cannot use the RDY pin at the same time.

    If you want to use the pin for RDY, then you need to use the COMP_QUE bits and write 11 to bits [1:0] of the configuration register to disable the comparator. Once these are written, the COMP_MODE and COMP_LAT bits no longer control any function.



    Joseph Wu