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ADS8686S: Linux driver available?

Ben Carrington
Prodigy 10 points
Part Number: ADS8686S
Other Parts Discussed in Thread: ADS8688, ADS8684,

Tool/software:

Hello Guys,

Do we have a Linux driver for ADS8686?

I found one for ADS8688, but can this be use for ADS8686?

Thanks,

  • 0
    TI__Expert 5440 points

    Hello Ben,

    Unfortunately the ADS8686 does not have a Linux driver. The Linux driver for the ADS8688 supports only ADS8684 & ADS8688. 

    Best regards, 

    Yolanda

  • 0 in reply to Yolanda Gonzalez
    Prodigy 10 points

    Hello Yolanda,

    Any estimation to adapt the driver for ADS8688 to ADS8686? I am wondering if adapting the driver or changing to two ADS8688 chips.

    Regards,

    Adrien

  • 0 in reply to Ben Carrington
    TI__Expert 5440 points

    Hello Adrien, 

    It is difficult for me to give you an estimation to adapt the driver, between both devices there would be substantial changes to incorporate at least for device configuration and some in communication.

    Unfortunately we are not currently supporting any further development in Linux drivers, but we do have some devices that that have example c code, if that could be helpful. If a linux driver is required the ADS8688 is a good option.   

    What kind of key specs are you looking for for these devices? If example c code would be helpful I can make other suggestions. 

    Best regards, 

    Yolanda

  • 0 in reply to Yolanda Gonzalez
    Prodigy 230 points

    Hi ,

    we are using the ADS8686S, what is interface it supports, as per our understanding we have, it supports SPI, but it is also mentioned that it has two data out lines named SDOA and SDOB, so, is it QSPI, if QSPI how it needs to be configured.

  • 0 in reply to naveenkumar Muthusamy
    TI__Expert 5440 points

    Hello Naveenkumar, 

    Thank you for your question! 

    The ADS8686S has multiple modes for interface options. It has Serial, Byte, and Parallel. These can be configured through hardware or software settings. Section 7.4 & Section 7.5 explain through the differences.  

    In SPI mode the ADS8686S can be configured to either have a "1-wire" or "2-wire" mode to read back (either all data read back in SDOA, or SDOA and SDOB from their respective inputs. 

    Figures 7-29 & 7-30 show the operations for both modes

    Best regards, 

    Yolanda