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ADS1262IPW

S F Soares
Prodigy 90 points

Other Parts Discussed in Thread: ADS1262, ADCPRO, MSP430F5529

I am interested in utilizing the ADS1262IPW A/D converter in some hardware operating on USB in Windows 2K/Vista.

I am completely new to this technology and need info on how to integrate the ADS1262IPW to the USB bus.  Are there additional chips I2C (?) and MCU specified / required for this functionality.  Are example circuits and software available to implement this project on the TI site?

NOTE : I will purchase the ADS1262EVM-PDK evaluation board for our testing.  Does it have the USB interface built-into the board?  Is it compatible with Labview ?


Thank You !

  • 0
    TI__Mastermind 44790 points
    Hi Soares,

    The ADS1262 does not connect directly to a USB bus. It has an SPI interface which is compatible most microcontroller SPI peripherals. In order to collect data and transmit it over USB, you would need a micro-controller with both SPI and USB peripherals.


    There is a TI design with the ADS1262 and the MSB430F5529 (including software) that communicates with a PC, using a USB Virtual COM port, found here:
    http://www.ti.com/tool/TIPD188

    Additionally, you can find more information about communicating with the MSP430 using USB here:
    www.ti.com/.../msp430usbdevpack


    Regarding the ADS1262EVM-PDK...the EVM does connect to the PC using a USB interface and there is an ADCPro plugin that provides a GUI from the PC. However, I'm not aware of an easy way to communicate with the EVM outside of ADCPro. What kinds of things are you trying to accomplish from LabVIEW with the EVM? I could tell you if the ADCPro GUI is able to do the same things or not.

    Best Regards,
    Chris
  • 0 in reply to Christopher Hall
    Prodigy 90 points

    Mr. Hall,

    Thanks very much for your response.  Our interest lies

    in measurements of very low level signal variations from

    a photodetector.  The evaluation kit would be helpful if

    we could verify these variations in our "old" Labview 6

    system in dynamic measurements and plot / download

    the data in real time.  If ADCPro utilizes some form of

    string statements to communicate with the module it

    seems that we may replicate / implement these

    in Labview?


    But at this point my main concern is acquiring a feasible

    ckt. design for full USB implementation of the ADS1262

    converter in 32-bit data acquisition mode.

    Thanks Again !

  • 0 in reply to S F Soares
    TI__Mastermind 44790 points
    Hi Soares,

    The ADS1262EVM unfortunately is not able to stream data. The EVM firmware is designed to collect the ADC data into memory and then transmit all the data back up to the PC in a single block transfer. The EVM provides a means to test the performance of the ADS1262 out of the box; however, it is not really intended or very useful for doing development.

    I think your best option would be to look into the TI Design implementation (www.ti.com/.../TIPD188). This software could easily be modified to stream data, and it already implements simple string commands that can be sent from LabVIEW. The software was written for the MSP430F5529 LanuchPad (MSP-EXP430F5529)

    There isn't any orderable hardware for this TI Design (other than than the MSP430 LaunchPAD); however, there are hardware design files included, which would make a BoosterPack to connect to the MSP430 LaunchPad.

    I hope that helps!

    Best Regards,
    Chris
  • 0 in reply to Christopher Hall
    Prodigy 90 points
    Mr. Hall - Thanks, We'll start looking into this issue and contact you in the future.