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About ADS8558 /FS Controll.

Satoshi
Guru 19645 points


On datasheet Page-14,Is it updated by new conversion data when CONST↑ is carried out again,

without carrying out the toggle of SCLK and FS=0?   (which does not extract conversion data)

Or unless it extracts the once changed data, may not CONST↑ of the following carry out?

Thank you for your consideration

  • 0
    TI__Guru**** 181511 points

    Hi Satoshi,

    The CONVST drives the actual conversion.  Taking CONVST_X high will begin the conversion using XCLK (see page 24) and drive the BUSY output.  You should use the BUSY signal as an interrupt to determine when the conversion is complete.  The FS input is used like a chip select.  Once the conversion is complete, drive FS low and apply the SCLK to retrieve the conversion results.