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  1. DanielJackMorley

    differential pair of 8o ohms for a usb io PCB

    Sorry for the late response but there was some confusion. We plan on using 2.0 but 1.0 is possible.
  2. DanielJackMorley

    differential pair of 8o ohms for a usb io PCB

    Another issue on this design came up. The usb connector needs to rotated 90 on a piggy back board. Is this possible on a USB design if the Piggy back board follows the micro strip rules of impedance and trace length. What about going through a via on the differential pair.
  3. DanielJackMorley

    differential pair of 8o ohms for a usb io PCB

    Like a microstrip because this board has only one ground plane. That is a brutal calculation. I am still a little confused. The schematic I am working off of tells me to differential pair map two net sets but not the whole track of the USB signal. I don't see where the termination resistor...
  4. DanielJackMorley

    differential pair of 8o ohms for a usb io PCB

    I have never needed to do a differential pair myself but the schematic calls out for one. The data sheet says it needs to be 80 differential between the two traces. Reading tutorials on it tell me that the this can be determine by trace width height and permeability of the dielectric. I found...
  5. DanielJackMorley

    GPIB

    Yes I have looked at National Instruments. The problem is the specifications are under what I require. I am currently using a specialty chip they made for this company but it is not supported and will run out at sometime. All the chips they have are rated far below the operating conditions...
  6. DanielJackMorley

    GPIB

    Spartan FPGA's are well within those specs on their industrial package. So it sounds like the only way one can get this system up and running is to develop the VHDL code. Is their a source for this GIPB stuff that can help in the design of this device.
  7. DanielJackMorley

    GPIB

    It might be 100 C. But these values are from some test that some one did on it. Rather than some military standard. Fitting the requirements for either one would be an improvement from my current options.
  8. DanielJackMorley

    GPIB

    This design requires a GPIB interface with an operating temp from -20 to 120 C. The issue is the current available GPIB do not meet this spec. Is there a way of designing one of these through VHDL on a FPGA? Does some one know any literature that can help me with this task.
  9. DanielJackMorley

    Aptina Imaging lens

    I have a support ticket created and it takes about a week to get them to talk. If their is a technical support line I have not found it.
  10. DanielJackMorley

    Video Design to an ethernet 10/100

    That is a question I was go ask after I determined this design is possible. I am pretty sure it is now. So I will ask it. I am trying to a have a web face(TCP/IP) interface to control a robot. The processor does other things like turn on motor drivers and the like. I have this working already...
  11. DanielJackMorley

    Aptina Imaging lens

    I am new to video design and even newer to optics. Is their a stand alone product that can fit the 6 um x 6 um sensor of a MT9V032 from aptina imaging. It would be great if their is one of the web cam balls that can fit on to the pcb that has motors in it for zoom and motion.
  12. DanielJackMorley

    Video Design to an ethernet 10/100

    What is a MP4 engine. I am trying to compress this sensor data so that I can have a 60 fps video feed. The image quality can be bad. My belief is the MPEG-4 is typically used in these type of applications. Is my logic wrong?
  13. DanielJackMorley

    wireless firewire

    does anyone know anything about wireless fire wire. Is it a real product and is it available to the public.
  14. DanielJackMorley

    Video Design to an ethernet 10/100

    If not a DSP then what would you recommend?
  15. DanielJackMorley

    Video Design to an ethernet 10/100

    Ok, I think I understand the issue better. My current solution to this issue is to have a DSP between the VGA sensor and my processor to do a MPEG-4 compression. New questions How does this compression affect the 173 Mbps? Why are DSP's so expensive and is there a cheaper solution? Is...
  16. DanielJackMorley

    Video Design to an ethernet 10/100

    I am going to be doing other things besides the web cam. But this is by far the biggest bottle neck.
  17. DanielJackMorley

    Video Design to an ethernet 10/100

    I can see the advantages of using a UPD. (no handshaking means more information that can be sent). The system is already set for IP. I guess what I need right now is how to model the data stream and pro's and con's regarding compression techniques. 360,960 pixels can translate to three times...
  18. DanielJackMorley

    Video Design to an ethernet 10/100

    I am trying to send an image to a PC for a web page. The chip a am looking at for the sensor is MT9V032. I have a processor for other applications unrelated to the video. My current solution is to use the Ethernet port on the chip to send bit data It is possible that I could use another...
  19. DanielJackMorley

    Video Design to an ethernet 10/100

    Sorry to sound stupid but how does one compress video? Is this a firmware procedure.
  20. DanielJackMorley

    Video Design to an ethernet 10/100

    I am looking to have a video chip (MT9V032) to a coldfire processor (66mhz) which is connected to a 10/100 Ethernet port. I am trying to develop a system to display this image onto a web page. It needs to be at least 60 frames per second. I have little familiarity with video and am worried...

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