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Found 6 results

  1. Hi all, I am brand new to FPGAs and am finding the documentation more confusing than enlightening regarded this issue. I am having considerable difficulty getting my PYNQ-Z1 board to output a voltage through the Arduino IO ports. Currently I have a complete circuit from Arduino IO 0 to a breadboard with an LED and resistor in series, and it connects back to the Arduino ground port. My code is as follows: In [1]: from pynq.overlays.base import BaseOverlay base = BaseOverlay("base.bit") from pynq.lib.arduino import Arduino_IO In [2]: x=Arduino_IO(base.ARDUINO,0,"out") x.write(1) However, I am getting an attribute error, which reads as follows: AttributeError ---->2 x=Arduino_IO(base.ARDUINO,0,"out") /opt/python3.6/lib/python3.6/site-packages/pynq/lib/arduino/arduino_io.py in __init__(self,mb_info,index,direction) ---->97 self.microblaze.start() Attribute Error: 'Arduino' object has no attribute 'start' What is "start" and how can I fix my code to properly output voltage? Thanks for your time.
  2. Dear experts, I am actually new in this field and have a very few experience with zybo board. I have implemented the zybo_hdmi_in_demo which is required for my master thesis. Output video streaming at the VGA monitor shows a cropped part of my input video source. What should I do now? And can I use other HDMI source rather than my PC? And what is the preferred input HDMI video resolution? any kind of support or suggestions is highly appreciated.
  3. I'm trying to configure the Discovery2 with BNC adapter to transmit three different clock-synchronized pulses to three interacting pieces of equipment via the BNC. I'm aiming for precise independent control of waveform, frequency, pulse-width, triggers, etc, all from the same master clock. I need precise pulse timing integrity at the khz level, with minimal degradation over 30ft+ cable distances, hence why we are aiming to use the AWG on the BNC rather than the pattern tool on DIO pins in WaveForms. The BNC Adapter for the Discovery2 is configured with two input and two output ports. Is it possible to reconfigure the input ports as outputs? If not, is it possible to physically convert digital pins (plus grounds) to BNC without signal degradation? What other options might exist for transmitting three output signals with BNC rather than digital pins? Is it possible to link two boards with the same master clock? Or, is it possible to maintain the quality of signal necessary using the digital pins, making all of this a moot point? Assuming it's possible to run three BNC outputs, is it possible to control this from Waveforms (given only two channels of AWG, where we need three), or will we need to write a custom application?
  4. Hello I am hoping to output a 225MHz clock on either a Basys3 or Zybo board. I can generate the necessary clock speeds internally however the hardware has settling times which appear in the range of 10ns instead of my desired 2ns, which when reading the spec sheets most settling times are significantly less but I think the hardware outputs are larger. I initially receive a warning about trying to connect a circuit routed to clock with the hardware pins which is likely the cause. Through reading I found the Zybo had high frequency PMOD pins however these showed no improvement in testing. In further reading I was told only pins that ended with SS were capable of being used as clock outputs however these pins also showed no improvement. I was hoping someone could suggest a way to output my desired clock frequency. I feel like there is some hardware specification I have to make but I can find nothing on the subject. Thank you for any insight.
  5. Hi every one, I'm trying to have My Smartphone (Sony Xperia Z2) MHL (TV-OUT) output in ZYBO HDMI input. When I use my laptop HDMI output (720p), the ZYBO works correctly, But when I connect My Smartphone via MHL(Mobile High-Definition Link) cable, Idon't have any output from VGA port. I must say that I tested phone MHL output on TV and it worked perfectly (1280*720@60Hz & 1920*1080@30Hz). Please help me about this problem. Best regards. Sina shiri
  6. Hi, I've been working for a while now to create a program which generates a specific signal. I think I may have succeeded but I don't know how to verify that. I was hoping that there would be a way to use the Diligent Adept software or Xilinx ISE to see what my board is outputting. Hardware/software; Im using A nexys 4 board, ISE 14.7, and adept 2. The code I have was generated by Matlab's hdl coder and the out puts are two 10-bit signals. Thanks.