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Found 2 results

  1. Hi all I'm currently working on a project based on ultrasound. I've created a pulsetransmitting board already which hooks into the zedboards FMC-LPC connector (I needed 64 high-speed channels), yet now I need to make a receiving side as well. Since returning signals are in the range of 250-300kHz, I was looking into ADCs of around 1MSps@12 or 14bits. (max. 4 channels needed) Now is the problem that I can't find any spec on the frequency the zedboard PMODs can handle. Is it possible to have speeds of approx 20MHz or is this out of range of the (high-speed) PMOD connectors? Would it be a better idea to make a board with a female-male connector on top of each other so I can pass the signals which need to be passed to the previous made board (as I only need a couple of its transmitting channels, stack the boards with the FMC-LPC connector) and use the other connections for an ADC board, since the FMC should be capable of higher speeds? any thoughts? Thanks!
  2. hello, I want to interface zedboard(PL-Section) with external ad7768-4 ADC board using SPI interface via FMC_LPC connector. i have following questions: 1) how i can set SPI interface in zedboard (i mean, where i can assign "sclk, cs#, sdi, sdo" pins from ad7768-4 adc board to zedboard(PL-section) ) ? 2) can I access QSPI Flash by using PL-section of zynq 7000 ? 3) what is the meaning of QSPI Feedback, where it should be connected? 4) can i use QSPI in standard mode ? please help me ! Thank you