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Recent content by umerhuzaifa

  1. U

    Perfect PIC for using USB conection

    There are two available in 18F series and have extensive online help available too. PIC18F2550 and PIC18F4550
  2. U

    Very basic .vl question

    Hi there, your code is working absolutely fine..:) you are somewhat right in your guess. #nn indicates the delay in addition to the time spent before this "#" So effectively your reset routines are working as follows reg reset = 0; initial begin # 17 reset = 1; At 17th time unit...
  3. U

    How to write y=ln(x) C programming

    if you are using the basic iostream library with using namespace std; log(x) should do for "ln(x)" and log10(x) should do for the base 10 log. I hope that answered the question.
  4. U

    Explain the below assembly program for pic

    this may be an adc program explain the program with the help of the adc sfrs #include"p16f73.inc" org 0x00 bsf status,rp0 //for selecting //RAM addresses 80h-ffh by default movlw 0xff //for selecting movwf trisa...
  5. U

    Physical representation of transistor working as amplifier

    @tweethy.. You could try the following perhaps: www.youtube.com/watch?v=FODFowmDfvY‎ and for amplifiers and transistors as amplifiers: http://www.flashscience.com/electricity/transistor.htm Hope that helps.
  6. U

    Circuit for Small Signal Analysis of Semi Conductor Devices

    Dear all, I was just going through and revising the basic electronics concepts when i felt like i should be simulating something too on ISIS. Attached is the basic circuit that can be tweaked for analyzing the small signal model of semi conductor devices.
  7. U

    design of counters..pl help!

    I agree with Aritra. Just to add. Be mindful of the rate at which the input data stream flows in. If the data stays for say "Ts", your combinational circuit delay should not be more than "Ts" otherwise you would miss a few data sets. Regards,
  8. U

    FSM toolbar in Modelsim

    Kindly help out with the Verilog language in that case. Regards,
  9. U

    DC Voltage Doubler Circuit

    assalamualaekum! everybody, A nice group..:smile: i am working on a usb mobile charger.It was easy had i required only a 5V supply to charge my thing but it turned out that its charger actually gave something around 8V so i need to have a supply of around this value "out of 5V of USB".I...
  10. U

    Opening a web page using GPRS of GSM/GPS module SIM548c

    i have got it solved.. but there are many websites like www.download.cnet.com and many others which dont open either 1-at at+cipstart=.. level giving an error rather than telling CONNECT OK or 2-give html file reading 404 BAD REQUEST.. thanks for ur reply..
  11. U

    Opening a web page using GPRS of GSM/GPS module SIM548c

    assalamualaekum! I am working on sim 548c and want to open a website (any website)..i followed the following set of commands for establishing connection and sending the request.. at ok at+cgatt=1 ok //enabling gprs at+cgdcont=1,"IP","ufone.internet" ok...
  12. U

    Matlab interfacing with SIM548c

    Assalamualaekum! I am just exploring the sim548c module and came across the following problems on the way: 1-Serail Communication with Hyper Terminal is perfect..but as i use Matlab for serial communication, i dont get the response from the module like "OK " in response to "AT" etc.I have been...
  13. U

    got a problem with dimmer powered from UPS

    got a problem my father is a surgeon and he employs a microscope having a bulb(i guess incandescent,though i m not confirmed) with a dimmer with it..now as far as the main power is given to the scope the dimmer works fine bt as the main power goes out and it is operated on UPS(uninterrupted...

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