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TSW1400

Arunesh Roy30
Prodigy 20 points

I'd like to use the TSW1400 for initial ADC evaluation and if possible for some algorithm development. Can someone shed light on the continuous capture capability of the board. How long is the continuous capture buffer? Can I log the data to the host pc in continuous capture mode? What about modifying the firmware to add some processing blocks before transfer to the host pc? Is it possible to run FFTs and log to host pc?

  • 0
    TI__Genius 12965 points
    HI Arunesh,
    The TSW1400 is only capable of doing a single contiguous capture at a time. The GUI enabled continuous capture automatically performs captures of different buffers and is not contiguous in time. The TSW1400 has capabiilty to store 512M samples of 16bits wide.

    Please have a look at this TI Design. It outlines how to use the TSW1400 as an FPAG platform to do some basic connectivity to ADC and DAC.
    www.ti.com/.../TIDA-00069

    Ken.
  • 0 in reply to Ken C
    Prodigy 20 points

    What is the rate at which the next capture can be intitiated when the buffer is full? If I want to capture 1MSamples of data(16bit) per frame, is there a way to determine what the frame rate will be?

    Can the memory in the card be increased? Or is it a hard 1GB limit? 

  • 0 in reply to Arunesh Roy30
    Prodigy 220 points
    We also have the same problem . It is a simple feature to acquire continous triggered data. We thought that TSW1400 would be a ready to use acquisition system but it turned out to be really limited.
  • 0 in reply to Cesar Ofuchi
    TI__Genius 12965 points

    The memory is limited to the DDR memory module on the TSW1400 EVM.

    The system was not designed to capture data contiguously - it was designed to do single shot captures to memory, then transfer the data to the PC for analysis.  The contiguous capturing of data for a streaming type feature is not possible on this hardware - it was never implemented in a manner suitable for streaming.

    Ken