• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 46 subscribers
  • Views 617 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ADS1672evm to ADCpro data transfer time

Konsty Kudinov
Prodigy 30 points
Other Parts Discussed in Thread: ADCPRO, ADS1672

Hello,

I have a question about ads1672evm device: how long does it take to read data from the device if I use ADCpro performance demonstration tool?

I am trying to probe voltage with a sampling frequency of 1 kHz. For this I set modulator clock to 32 kHz and used Data Rate bits: 11, which gave the throughput rate of 1 kHz. Setting number of samples to 5 000 I expect that ADS will collect data during a period of 5 seconds and than it is going to transfer data to the ADCpro during some time. What time does it take to transfer the data? How does this time changes with increasing/decreasing number of samples and does it changes significantly?

Many thanks! 

  • 0
    TI__Guru**** 180901 points

    Hi Konsty,

    From the standpoint of the ADS1672 taking samples, the software associated with ADCPro will collect all requested samples (in this case, 5000) as one contiguous block using whatever sample rate you select.  Once the entire sample set is collected, the software buffers the data back to the PC through the USB port.  Buffering data through the USB port back to the PC takes more time than the actual collection of the data.  I don't have a number for you at the moment on how long the USB transfer takes, but if you are worried about a discontinuity in the sampled data, there is not going to be one.