Search:

Type: Posts; User: fourtytwo

Page 1 of 3 1 2 3

Search: Search took 0.00 seconds.

  1. Closed: Re: Quartus 19.1 on Ubuntu 18.04 problems with internet and usbblaster

    Ghaa to old to edit, anyway the Linux incantation to make USB-BLASTER work doesnt, here it is for anybody interested ----

    create the file /etc/udev/rules.d/51-usbblaster.rules with the following...
  2. Closed: Re: Quartus 19.1 on Ubuntu 18.04 problems with internet and usbblaster

    Well what I can say now is Quartus 12.0/sp2 definitely runs under XP/sp3 on a 32 bit machine as I have had it running this afternoon thanks to a gift of said software from a kind person (AFIK the...
  3. Closed: Re: Quartus 19.1 on Ubuntu 18.04 problems with internet and usbblaster

    Ahh thank you for being specific, maybe crossed wires I was talking about THIRTYTWO BIT machines running XP/SP3.

    Maybe that is the problem, if you load 13.1 into a 64bit XP machine it works, but...
  4. Closed: Re: Quartus 19.1 on Ubuntu 18.04 problems with internet and usbblaster

    In what way are you suggesting XP is corrupt when everything else on it works, for example msoffice etc ? The downloads were done on two different machines with the same results!

    Are you telling...
  5. Closed: Re: Quartus 19.1 on Ubuntu 18.04 problems with internet and usbblaster

    Thank you for your reply..........Unfortunately I discovered on the Intel download site many links were broken for earlier revisions as shown in the following table

    13.1 prog XP32 X App failed to...
  6. Closed: Re: What is the best way to interface MCU (STM32F4 series) with FPGA board (Artix-7)

    Parallel interfaces are often simpler to implement, enable random access but at higher clock speeds (say >50Mhz) skew can become a problem.
    Serial interfaces do not suffer skew problems to such a...
  7. Closed: Quartus 19.1 on Ubuntu 18.04 problems with internet and usbblaster

    Hi All, am appealing to anybody who has a similar environment to give me a few tips here :)

    The internet problem is weird, the system default is ffox 70 that runs fine standalone but none of the...
  8. Replies
    35
    Views
    1,356

    [SOLVED]Closed: Re: ACS712-5A AC Current Reading - How to?

    I am not sure what you are asking, I assume you know the nominal zero-current output voltage is VCC/2 (2.5V). The ACS712 is a 5V part as is the PIC, I don't see anything strange with the PIC's DAC so...
  9. Closed: Re: Problem with PIC16F877A, infinite loop output voltage 0.6V

    Assuming your first bit of code is actually complete (unlike the second) I don't see you have enabled PORTD as outputs at any point so I am not surprised you cannot see any output BUT also measuring...
  10. Closed: Re: PIC18F based Motor Controller Design, Is it good?

    Hello, you have several problems there
    1/ The high side gate must be driven to Vgate + drain supply, you say 200V, an L293D cannot do that.
    2/ 4N37 or similar opto-couplers are very slow and will...
  11. [SOLVED]Closed: Re: Lenovo laptop problem during installing LINUX OS

    What Distro exactly are you using and what is the media, what is the model of laptop, how much memory, what sort of storage etc etc!!
  12. Replies
    6
    Views
    875

    Closed: Re: IR2110 simulation problem is pspice

    Your FET wiring is crazy and wrong!! I am not surprised with that awful symbol, is that what you get paying $$$$$ for Orcad ?
    If I were you I would use a free simulator with decent symbols like...
  13. Closed: Re: Looking for pcb manufacturers for large boards (31"x17"x0.286" 40 layers)

    Perhaps nobody thinks your serious, whats your budget & MOQ ?
  14. Closed: Re: How can i chose the resistor value to simulate a PV cell in ADS

    I wish you had posted that model originally then we would have had a clearer idea what your problem was. FYI here is my standard spice model I use.
    152383
    As you can see Rser is tiny as I explained...
  15. Closed: Re: How can i chose the resistor value to simulate a PV cell in ADS

    Unfortunately I have no knowledge of the model you are using so I cannot directly answer your question.
    In my case in spice most published models I am aware of use a diode shunting a current source...
  16. Closed: Re: How can i chose the resistor value to simulate a PV cell in ADS

    Hello Brad, well let me help you out there, the correct way to model a PV cell is as a CURRENT source in parallel with a forward biased diode who's characteristics (conduction knee) mimics your cell....
  17. Closed: Re: How can i chose the resistor value to simulate a PV cell in ADS

    This may be to late! Rs can be calculated from the voltage drop from VOC to VMPP divided by IMPP that are all normally quoted both for panels and cells. Rsh (shunt ?) in the forward sense is...
  18. Replies
    5
    Views
    2,322

    Closed: Re: Round Robin gate-level diagram

    I don't see that schematic in the link you have given. I somehow think this is an incomplete schematic, what ensures only one grant is given ?
  19. Replies
    21
    Views
    3,654

    Closed: Re: Power transformer monitoring device

    Hi I read this thread with interest and I guess total non-invasiveness is a requirement (no opening up the transformer).

    For load estimation I would go for temperature rise using two sensors one...
  20. Replies
    12
    Views
    7,437

    [SOLVED]Closed: Re: IRS2110 IRS2113 SD pin and Rattlesnakes

    Not receiving replies from people who cannot be bothered to read the post would be even better!
  21. Replies
    12
    Views
    7,437

    [SOLVED]Closed: Re: IRS2110 IRS2113 SD pin and Rattlesnakes

    Thank you FvM and I shall certainly not make that mistake again! It is a double sided board with no copper fills in the area just ordinary tracks, it is a 14 pin dip package with normal sized pads...
  22. Replies
    8
    Views
    1,968

    Closed: Re: Problem with IR2113 full-bridge

    Hello I also use this chip, a couple of comments on your schematic
    1/ You show no decoupling on VCC and VSS pins, they are essential
    2/ You do not mention the diode type, the boost diode is...
  23. Replies
    12
    Views
    7,437

    [SOLVED]Closed: Re: IRS2110 IRS2113 SD pin and Rattlesnakes

    Sorry Klaus I don't give away schematics easily and they don't contain anything that is not in the apps note for the purposes of this particular problem. I should mention the driver is within 30mm of...
  24. Replies
    12
    Views
    7,437

    [SOLVED]Closed: Re: IRS2110 IRS2113 SD pin and Rattlesnakes

    Dear me I was only trying to help other people using this chip in an amusing fashion, if all your going to do is jump down my throat I wont bother again.

    PS I already know what the problem is!
  25. Replies
    12
    Views
    7,437

    [SOLVED]Closed: Re: IRS2110 IRS2113 SD pin and Rattlesnakes

    Umm it's a half bridge and the IRS211x is documented in the data sheet.
Results 1 to 25 of 60
Page 1 of 3 1 2 3