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PitchNancy

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  1. The communication rate with interruption probably not exeed 1 Mo / s, it's very slow... What's your data sampling rate ?
  2. :question: Do you think it's possible to do a "scroll graph" with 3D curve ? My graph post data only point by point (with system of point by point acquisition. one loop, one point) .
  3. Thanks, I did not think of this problem !!! After correction I do not have any more insane peaks. But now my problem is the limitation of the band-width by using IRQ. I don't understand why it's impossible to use DMA transfer.
  4. Hi, I use FPGA's counter input for PWM demodulation. My base PWM frequency is 1kHz. I use the tick count VI for the pulse width and period measurement. Tick count clock is 40 MHz, and 16 bit r
  5. Hi, After doing some test I have a beginning of explication. I have used the real time system manager to evaluate the CPU usage. I have acquired 8 analog Input with FPGA and transmitted them to RT by the IRQ method. I did the test for cluster, array, and 8 single channel transmission. After 20000 Hz the RT CPU usage was superior than 100 %, and bug. I attach my VI and my results. Download File:post-1636-1109952736.zip Download File:post-1636-1109952738.pdf
  6. Hello, With my pxi FPGA and RT 8186 controller I obtain only 20 kHZ of loop rate. I use IRQ method and acquire 8 analog input. I make for the moment no processing on FPGA and RT. Can you say me if you have similar results or better ?
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